Merge branch 'release/2012032101' into stable

MS12-020 not MS12-002
Merge branch 'release/2012031401'
2012-03-26 22:47:42 -05:00 · 2012-03-21 13:57:47 -05:00 · 2012-03-20 11:49:41 -05:00 · 2012-03-20 11:39:17 -05:00 · 2012-03-20 11:38:52 -05:00 · 2012-03-15 15:01:08 -05:00
722 changed files with 869 additions and 53642 deletions
@@ -0,0 +1 @@
+rvm use 1.9.3-p0@msf3
@@ -0,0 +1,3 @@
+source "http://rubygems.org"
+
+gem 'metasploit_data_models', :path => "../metasploit_data_models"
@@ -0,0 +1,47 @@
+PATH
+  remote: ../metasploit_data_models
+  specs:
+    metasploit_data_models (0.0.1)
+      activerecord
+      activesupport
+      pg
+      pry
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    activemodel (3.1.3)
+      activesupport (= 3.1.3)
+      builder (~> 3.0.0)
+      i18n (~> 0.6)
+    activerecord (3.1.3)
+      activemodel (= 3.1.3)
+      activesupport (= 3.1.3)
+      arel (~> 2.2.1)
+      tzinfo (~> 0.3.29)
+    activesupport (3.1.3)
+      multi_json (~> 1.0)
+    arel (2.2.1)
+    builder (3.0.0)
+    coderay (0.9.8)
+    i18n (0.6.0)
+    method_source (0.6.7)
+      ruby_parser (>= 2.3.1)
+    multi_json (1.0.4)
+    pg (0.12.2)
+    pry (0.9.7.4)
+      coderay (~> 0.9.8)
+      method_source (~> 0.6.7)
+      ruby_parser (>= 2.3.1)
+      slop (~> 2.1.0)
+    ruby_parser (2.3.1)
+      sexp_processor (~> 3.0)
+    sexp_processor (3.0.10)
+    slop (2.1.0)
+    tzinfo (0.3.31)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  metasploit_data_models!
@@ -0,0 +1,388 @@
+# EXTENSIONS => CONTENT TYPE
+csh: application/x-csh
+x_t: model/vnd.parasolid.transmit.text
+kpt: application/vnd.kde.kpresenter
+vst: application/vnd.visio
+ksp: application/vnd.kde.kspread
+fsc: application/vnd.fsc.weblaunch
+vcs: text/x-vcalendar
+hvs: application/vnd.yamaha.hv-script
+seml: application/vnd.sealed.eml
+lzh: application/octet-stream
+movie: video/x-sgi-movie
+wav: audio/x-wav
+tbz2: application/x-gtar
+plt: application/vnd.hp-HPGL
+3gpp: video/3gpp
+eol: audio/vnd.digital-winds
+vsw: application/vnd.visio
+rtf: text/rtf
+rgb: image/x-rgb
+midi: audio/x-midi
+sit: application/x-stuffit
+mov: video/quicktime
+kfo: application/vnd.kde.kformula
+rdf: application/rdf+xml
+wpd: application/vnd.wordperfect
+hbc: application/vnd.hbci
+ogg: application/ogg
+dwf: x-drawing/dwf
+pbm: image/x-portable-bitmap
+cpp: text/plain
+smp3: audio/vnd.sealedmedia.softseal.mpeg
+html: text/html
+igs: model/iges
+dwg: image/vnd.dwg
+see: application/vnd.seemail
+ram: audio/x-pn-realaudio
+jad: text/vnd.sun.j2me.app-descriptor
+iges: model/iges
+pot: application/powerpoint
+exe: application/octet-stream
+siv: application/sieve
+wml: text/vnd.wap.wml
+hlp: text/plain
+pkd: application/vnd.hbci
+ice: x-conference/x-cooltalk
+ustar: application/x-ustar
+vis: application/vnd.visionary
+pkipath: application/pkix-pkipath
+ecelp4800: audio/vnd.nuera.ecelp4800
+tgz: application/x-gtar
+roff: text/troff
+ltx: application/x-latex
+nim: video/vnd.nokia.interleaved-multimedia
+qcp: audio/QCELP
+ai: application/postscript
+sppt: application/vnd.sealed.ppt
+igx: application/vnd.micrografx.igx
+tcl: application/x-tcl
+viv: video/vnd.vivo
+css: text/css
+wpl: application/vnd.ms-wpl
+ami: application/vnd.amiga.ami
+l16: audio/L16
+vivo: video/vnd.vivo
+dat: text/plain
+vrml: x-world/x-vrml
+pqa: application/vnd.palm
+request: application/vnd.nervana
+oprc: application/vnd.palm
+vbk: audio/vnd.nortel.vbk
+pki: application/pkixcmp
+ras: image/x-cmu-raster
+asc: text/plain
+kom: application/vnd.hbci
+jpeg: image/jpeg
+sem: application/vnd.sealed.eml
+chrt: application/vnd.kde.kchart
+tif: image/tiff
+cil: application/vnd.ms-artgalry
+xwd: image/x-xwindowdump
+dgn: image/x-vnd.dgn
+mxu: video/vnd.mpegurl
+csv: text/comma-separated-values
+kon: application/vnd.kde.kontour
+png: image/png
+bkm: application/vnd.nervana
+sxl: application/vnd.sealed.xls
+xfdf: application/vnd.adobe.xfdf
+snd: audio/basic
+dl: video/dl
+sxls: application/vnd.sealed.xls
+karbon: application/vnd.kde.karbon
+ico: image/vnd.microsoft.icon
+sus: application/vnd.sus-calendar
+pdb: x-chemical/x-pdb
+wif: application/watcherinfo+xml
+ser: application/x-java-serialized-object
+xmt_txt: model/vnd.parasolid.transmit.text
+upa: application/vnd.hbci
+pnm: image/x-portable-anymap
+jar: application/x-java-archive
+qt: video/quicktime
+tsv: text/tab-separated-values
+rtx: text/richtext
+mdi: image/vnd.ms-modi
+rcprofile: application/vnd.ipunplugged.rcprofile
+gl: video/gl
+me: application/x-troff-me
+man: application/x-troff-man
+tr: text/troff
+amr: audio/AMR
+wp5: application/wordperfect5.1
+pdf: application/pdf
+pgb: image/vnd.globalgraphics.pgb
+au: audio/basic
+avi: video/x-msvideo
+qxb: application/vnd.Quark.QuarkXPress
+wp: application/wordperfect5.1
+wmlsc: application/vnd.wap.wmlscriptc
+wbxml: application/vnd.wap.wbxml
+s1a: application/vnd.sealedmedia.softseal.pdf
+saf: application/vnd.yamaha.smaf-audio
+gtar: application/x-gtar
+Z: application/x-compressed
+crl: application/pkix-crl
+pti: application/vnd.pvi.ptid1
+rdz: application/vnd.data-vision.rdz
+aif: audio/x-aiff
+flo: application/vnd.micrografx.flo
+qxd: application/vnd.Quark.QuarkXPress
+rpm: audio/x-pn-realaudio-plugin
+djv: image/vnd.djvu
+jpe: image/jpeg
+kne: application/vnd.Kinar
+lvp: audio/vnd.lucent.voice
+stml: application/vnd.sealedmedia.softseal.html
+p7c: application/pkcs7-mime
+dms: application/octet-stream
+s1e: application/vnd.sealed.xls
+sdf: application/vnd.Kinar
+sc: application/vnd.ibm.secure-container
+jnlp: application/x-java-jnlp-file
+dvi: application/x-dvi
+smov: video/vnd.sealedmedia.softseal.mov
+jisp: application/vnd.jisp
+aifc: audio/x-aiff
+latex: application/x-latex
+cc: text/plain
+s1g: image/vnd.sealedmedia.softseal.gif
+wv: application/vnd.wv.csp+wbxml
+mseq: application/vnd.mseq
+jpg: image/jpeg
+mmf: application/vnd.smaf
+xmt_bin: model/vnd.parasolid.transmit.binary
+s1h: application/vnd.sealedmedia.softseal.html
+mpc: application/vnd.mophun.certificate
+hdf: application/x-hdf
+stk: application/hyperstudio
+txd: application/vnd.genomatix.tuxedo
+ent: application/vnd.nervana
+xml: text/xml
+aiff: audio/x-aiff
+sh: application/x-sh
+mpe: video/mpeg
+s1j: image/vnd.sealedmedia.softseal.jpg
+psid: audio/prs.sid
+mpga: audio/mpeg
+pgm: image/x-portable-graymap
+si: text/vnd.wap.si
+stm: application/vnd.sealedmedia.softseal.html
+lbd: application/vnd.llamagraphics.life-balance.desktop
+flw: application/vnd.kde.kivio
+mpg: video/mpeg
+c: text/plain
+sgi: image/vnd.sealedmedia.softseal.gif
+zip: application/zip
+ecelp7470: audio/vnd.nuera.ecelp7470
+lbe: application/vnd.llamagraphics.life-balance.exchange+xml
+qxl: application/vnd.Quark.QuarkXPress
+p10: application/pkcs10
+bpd: application/vnd.hbci
+ief: image/ief
+gz: application/x-gzip
+doc: application/word
+efif: application/vnd.picsel
+jpm: image/jpm
+hpgl: application/vnd.hp-HPGL
+s1m: audio/vnd.sealedmedia.softseal.mpeg
+xhtml: application/xhtml+xml
+xpm: image/x-xpixmap
+ms: application/x-troff-ms
+bcpio: application/x-bcpio
+sl: text/vnd.wap.sl
+wrl: x-world/x-vrml
+s1n: image/vnd.sealed.png
+irm: application/vnd.ibm.rights-management
+pgp: application/octet-stream
+entity: application/vnd.nervana
+mcd: application/vnd.mcd
+ecelp9600: audio/vnd.nuera.ecelp9600
+kwd: application/vnd.kde.kword
+gif: image/gif
+sdo: application/vnd.sealed.doc
+cer: application/pkix-cert
+m4u: video/vnd.mpegurl
+rst: text/prs.fallenstein.rst
+htm: text/html
+mxmf: audio/vnd.nokia.mobile-xmf
+psb: application/vnd.3gpp.pic-bw-small
+knp: application/vnd.Kinar
+cab: application/vnd.ms-cab-compressed
+mj2: video/MJ2
+sgm: text/sgml
+wbmp: image/vnd.wap.wbmp
+p7m: application/pkcs7-mime
+spng: image/vnd.sealed.png
+lha: application/octet-stream
+s1p: application/vnd.sealed.ppt
+texi: application/x-texinfo
+s1q: video/vnd.sealedmedia.softseal.mov
+troff: text/troff
+h: text/plain
+shtml: text/html
+msh: model/mesh
+irp: application/vnd.irepository.package+xml
+rct: application/prs.nprend
+smht: application/vnd.sealed.mht
+s11: video/vnd.sealed.mpeg1
+htke: application/vnd.kenameaapp
+ps: application/postscript
+mpm: application/vnd.blueice.multipass
+dfac: application/vnd.dreamfactory
+pvb: application/vnd.3gpp.pic-bw-var
+lrm: application/vnd.ms-lrm
+smh: application/vnd.sealed.mht
+mpn: application/vnd.mophun.application
+spd: application/vnd.sealedmedia.softseal.pdf
+tiff: image/tiff
+jp2: image/jp2
+rpss: application/vnd.nokia.radio-presets
+qxt: application/vnd.Quark.QuarkXPress
+wmlc: application/vnd.wap.wmlc
+rpst: application/vnd.nokia.radio-preset
+etx: text/x-setext
+bmp: image/bmp
+s14: video/vnd.sealed.mpeg4
+\"123\": application/vnd.lotus-1-2-3
+mpp: application/vnd.ms-project
+spf: application/vnd.yamaha.smaf-phrase
+kar: audio/x-midi
+mid: audio/x-midi
+3gp: video/3gpp
+3g2: video/3gpp2
+hqx: application/mac-binhex40
+p7s: application/pkcs7-signature
+ppm: image/x-portable-pixmap
+pspimage: image/x-paintshoppro
+cdf: application/netcdf
+texinfo: application/x-texinfo
+sjp: image/vnd.sealedmedia.softseal.jpg
+wbs: application/vnd.criticaltools.wbs+xml
+emm: application/vnd.ibm.electronic-media
+s1w: application/vnd.sealed.doc
+ra: audio/x-realaudio
+jpx: image/jpx
+evc: audio/EVRC
+mif: application/x-mif
+qwd: application/vnd.Quark.QuarkXPress
+mp2: video/mpeg
+spdf: application/vnd.sealedmedia.softseal.pdf
+tbz: application/x-gtar
+txt: text/plain
+x_b: model/vnd.parasolid.transmit.binary
+mp3: audio/mpeg
+class: application/x-java-vm
+smo: video/vnd.sealedmedia.softseal.mov
+mp4: video/vnd.objectvideo
+m4v: video/x-m4v 
+htx: text/html
+hbci: application/vnd.hbci
+tex: application/x-tex
+vsc: application/vnd.vidsoft.vidconference
+wqd: application/vnd.wqd
+mfm: application/vnd.mfmp
+sgml: text/sgml
+smp: audio/vnd.sealedmedia.softseal.mpeg
+curl: application/vnd.curl
+cw: application/prs.cww
+djvu: image/vnd.djvu
+tga: image/targa
+vsd: application/vnd.visio
+t: text/troff
+wtb: application/vnd.webturbo
+spn: image/vnd.sealed.png
+plb: application/vnd.3gpp.pic-bw-large
+pps: application/powerpoint
+yaml: text/x-yaml
+psp: image/x-paintshoppro
+mjp2: video/MJ2
+sms: application/vnd.3gpp.sms
+hvd: application/vnd.yamaha.hv-dic
+acutc: application/vnd.acucorp
+ppt: application/powerpoint
+les: application/vnd.hhe.lesson-player
+vcf: text/x-vcard
+sjpg: image/vnd.sealedmedia.softseal.jpg
+kwt: application/vnd.kde.kword
+sic: application/vnd.wap.sic
+spp: application/vnd.sealed.ppt
+cmc: application/vnd.cosmocaller
+dot: application/word
+sv4cpio: application/x-sv4cpio
+cpio: application/x-cpio
+sswf: video/vnd.sealed.swf
+silo: model/mesh
+sid: audio/prs.sid
+yml: text/x-yaml
+smv: audio/SMV
+eps: application/postscript
+ptid: application/vnd.pvi.ptid1
+wks: application/vnd.lotus-1-2-3
+z: application/x-compressed
+hpp: text/plain
+htmlx: text/html
+ani: application/octet-stream
+sig: application/pgp-signature
+slc: application/vnd.wap.slc
+rm: audio/x-pn-realaudio
+smpg: video/vnd.sealed.mpeg4
+wmls: text/vnd.wap.wmlscript
+bin: application/x-mac
+mesh: model/mesh
+atc: application/vnd.acucorp
+pfr: application/font-tdpfr
+plj: audio/vnd.everad.plj
+rnd: application/prs.nprend
+xls: application/excel
+tar: application/x-tar
+mp3g: video/mpeg
+sgif: image/vnd.sealedmedia.softseal.gif
+oda: application/oda
+sdoc: application/vnd.sealed.doc
+kia: application/vnd.kidspiration
+prc: application/vnd.palm
+req: application/vnd.nervana
+xyz: x-chemical/x-xyz
+soc: application/sgml-open-catalog
+xlt: application/excel
+awb: audio/AMR-WB
+susp: application/vnd.sus-calendar
+xbm: image/x-xbm
+ccc: text/vnd.net2phone.commcenter.command
+hh: text/plain
+qwt: application/vnd.Quark.QuarkXPress
+shar: application/x-shar
+ssw: video/vnd.sealed.swf
+xul: application/vnd.mozilla.xul+xml
+kcm: application/vnd.nervana
+kpr: application/vnd.kde.kpresenter
+cdy: application/vnd.cinderella
+nc: application/netcdf
+src: application/x-wais-source
+sv4crc: application/x-sv4crc
+dtd: text/xml
+hvp: application/vnd.yamaha.hv-voice
+cww: application/prs.cww
+vss: application/vnd.visio
+rb: application/x-ruby
+log: text/plain
+swf: application/x-shockwave-flash
+flv: video/x-flv
+asf: video/x-ms-asf
+asx: video/x-ms-asf
+wma: audio/x-ms-wma
+wax: audio/x-ms-wax
+wmv: audio/x-ms-wmv
+wvx: video/x-ms-wvx
+wm: video/x-ms-wm
+wmx: video/x-ms-wmx
+wmz: application/x-ms-wmz
+wmd: application/x-ms-wmd
+m3u: audio/x-mpequrl
+rdp: application/rdp
+pcap: application/vnd.tcpdump.pcap
+torrent: application/x-bittorrent
+xlb: application/excel
+cue: application/x-cue
@@ -4,7 +4,7 @@ class MigrateCredData < ActiveRecord::Migration
 		begin # Wrap the whole thing in a giant rescue.
 		skipped_notes = []
 		new_creds = []
-		Msf::DBManager::Note.find(:all).each do |note|
+		Mdm::Note.find(:all).each do |note|
 			next unless note.ntype[/^auth\.(.*)/]
 			service_name = $1
 			if !service_name
@@ -46,7 +46,7 @@ class MigrateCredData < ActiveRecord::Migration
 					if candidate_services.size == 1
 						svc_id = candidate_services.first.id
 					elsif candidate_services.empty?
-						Msf::DBManager::Service.new do |svc|
+						Mdm::Service.new do |svc|
 							svc.host_id = note.host.id
 							svc.port = default_port
 							svc.proto = 'tcp'
@@ -115,7 +115,7 @@ class MigrateCredData < ActiveRecord::Migration

 		say "Migrating #{new_creds.size} credentials."
 		new_creds.uniq.each do |note|
-			Msf::DBManager::Cred.new do |cred|
+			Mdm::Cred.new do |cred|
 				cred.service_id = note[0]
 				cred.user = note[2]
 				cred.pass = note[3]
@@ -126,7 +126,7 @@ class MigrateCredData < ActiveRecord::Migration

 		say "Migrating #{skipped_notes.size} notes."
 		skipped_notes.uniq.each do |note|
-			Msf::DBManager::Note.new do |new_note|
+			Mdm::Note.new do |new_note|
 				new_note.host_id = note.host_id
 				new_note.ntype = "migrated_auth"
 				new_note.data = note.data.merge(:migrated_auth_type => note.ntype)
@@ -135,7 +135,7 @@ class MigrateCredData < ActiveRecord::Migration
 		end

 		say "Deleting migrated auth notes."
-		Msf::DBManager::Note.find(:all).each do |note|
+		Mdm::Note.find(:all).each do |note|
 			next unless note.ntype[/^auth\.(.*)/]
 			note.delete
 		end
@@ -3,7 +3,7 @@ class RequireAdminFlag < ActiveRecord::Migration
 	# Make the admin flag required.
 	def self.up
 		# update any existing records
-		Msf::DBManager::User.update_all({:admin => true}, {:admin => nil})
+		Mdm::User.update_all({:admin => true}, {:admin => nil})

 		change_column :users, :admin, :boolean, :null => false, :default => true
 	end
@@ -1,13 +1,13 @@
 class InetColumns < ActiveRecord::Migration

-	def self.up
-		change_column :hosts, :address, 'INET using address::INET'
-		remove_column :hosts, :address6
-	end
+  def self.up
+    change_column :hosts, :address, 'INET using address::INET'
+    remove_column :hosts, :address6
+  end

-	def self.down
-		change_column :hosts, :address, :text
-		add_column :hosts, :address6, :text
-	end
+  def self.down
+    change_column :hosts, :address, :text
+    add_column :hosts, :address6, :text
+  end

 end
@@ -1,84 +0,0 @@
-#--
-# Copyright (c) 2004-2009 David Heinemeier Hansson
-#
-# Permission is hereby granted, free of charge, to any person obtaining
-# a copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish,
-# distribute, sublicense, and/or sell copies of the Software, and to
-# permit persons to whom the Software is furnished to do so, subject to
-# the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#++
-
-begin
-  require 'active_support'
-rescue LoadError
-  activesupport_path = "#{File.dirname(__FILE__)}/../../activesupport/lib"
-  if File.directory?(activesupport_path)
-    $:.unshift activesupport_path
-    require 'active_support'
-  end
-end
-
-module ActiveRecord
-  # TODO: Review explicit loads to see if they will automatically be handled by the initilizer.
-  def self.load_all!
-    [Base, DynamicFinderMatch, ConnectionAdapters::AbstractAdapter]
-  end
-
-  autoload :VERSION, 'active_record/version'
-
-  autoload :ActiveRecordError, 'active_record/base'
-  autoload :ConnectionNotEstablished, 'active_record/base'
-
-  autoload :Aggregations, 'active_record/aggregations'
-  autoload :AssociationPreload, 'active_record/association_preload'
-  autoload :Associations, 'active_record/associations'
-  autoload :AttributeMethods, 'active_record/attribute_methods'
-  autoload :AutosaveAssociation, 'active_record/autosave_association'
-  autoload :Base, 'active_record/base'
-  autoload :Batches, 'active_record/batches'
-  autoload :Calculations, 'active_record/calculations'
-  autoload :Callbacks, 'active_record/callbacks'
-  autoload :Dirty, 'active_record/dirty'
-  autoload :DynamicFinderMatch, 'active_record/dynamic_finder_match'
-  autoload :DynamicScopeMatch, 'active_record/dynamic_scope_match'
-  autoload :Migration, 'active_record/migration'
-  autoload :Migrator, 'active_record/migration'
-  autoload :NamedScope, 'active_record/named_scope'
-  autoload :NestedAttributes, 'active_record/nested_attributes'
-  autoload :Observing, 'active_record/observer'
-  autoload :QueryCache, 'active_record/query_cache'
-  autoload :Reflection, 'active_record/reflection'
-  autoload :Schema, 'active_record/schema'
-  autoload :SchemaDumper, 'active_record/schema_dumper'
-  autoload :Serialization, 'active_record/serialization'
-  autoload :SessionStore, 'active_record/session_store'
-  autoload :TestCase, 'active_record/test_case'
-  autoload :Timestamp, 'active_record/timestamp'
-  autoload :Transactions, 'active_record/transactions'
-  autoload :Validations, 'active_record/validations'
-
-  module Locking
-    autoload :Optimistic, 'active_record/locking/optimistic'
-    autoload :Pessimistic, 'active_record/locking/pessimistic'
-  end
-
-  module ConnectionAdapters
-    autoload :AbstractAdapter, 'active_record/connection_adapters/abstract_adapter'
-  end
-end
-
-require 'active_record/i18n_interpolation_deprecation'
-I18n.load_path << File.dirname(__FILE__) + '/active_record/locale/en.yml'
@@ -1,261 +0,0 @@
-module ActiveRecord
-  module Aggregations # :nodoc:
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
-
-    def clear_aggregation_cache #:nodoc:
-      self.class.reflect_on_all_aggregations.to_a.each do |assoc|
-        instance_variable_set "@#{assoc.name}", nil
-      end unless self.new_record?
-    end
-
-    # Active Record implements aggregation through a macro-like class method called +composed_of+ for representing attributes
-    # as value objects. It expresses relationships like "Account [is] composed of Money [among other things]" or "Person [is]
-    # composed of [an] address". Each call to the macro adds a description of how the value objects are created from the
-    # attributes of the entity object (when the entity is initialized either as a new object or from finding an existing object)
-    # and how it can be turned back into attributes (when the entity is saved to the database). Example:
-    #
-    #   class Customer < ActiveRecord::Base
-    #     composed_of :balance, :class_name => "Money", :mapping => %w(balance amount)
-    #     composed_of :address, :mapping => [ %w(address_street street), %w(address_city city) ]
-    #   end
-    #
-    # The customer class now has the following methods to manipulate the value objects:
-    # * <tt>Customer#balance, Customer#balance=(money)</tt>
-    # * <tt>Customer#address, Customer#address=(address)</tt>
-    #
-    # These methods will operate with value objects like the ones described below:
-    #
-    #  class Money
-    #    include Comparable
-    #    attr_reader :amount, :currency
-    #    EXCHANGE_RATES = { "USD_TO_DKK" => 6 }
-    #
-    #    def initialize(amount, currency = "USD")
-    #      @amount, @currency = amount, currency
-    #    end
-    #
-    #    def exchange_to(other_currency)
-    #      exchanged_amount = (amount * EXCHANGE_RATES["#{currency}_TO_#{other_currency}"]).floor
-    #      Money.new(exchanged_amount, other_currency)
-    #    end
-    #
-    #    def ==(other_money)
-    #      amount == other_money.amount && currency == other_money.currency
-    #    end
-    #
-    #    def <=>(other_money)
-    #      if currency == other_money.currency
-    #        amount <=> amount
-    #      else
-    #        amount <=> other_money.exchange_to(currency).amount
-    #      end
-    #    end
-    #  end
-    #
-    #  class Address
-    #    attr_reader :street, :city
-    #    def initialize(street, city)
-    #      @street, @city = street, city
-    #    end
-    #
-    #    def close_to?(other_address)
-    #      city == other_address.city
-    #    end
-    #
-    #    def ==(other_address)
-    #      city == other_address.city && street == other_address.street
-    #    end
-    #  end
-    #
-    # Now it's possible to access attributes from the database through the value objects instead. If you choose to name the
-    # composition the same as the attribute's name, it will be the only way to access that attribute. That's the case with our
-    # +balance+ attribute. You interact with the value objects just like you would any other attribute, though:
-    #
-    #   customer.balance = Money.new(20)     # sets the Money value object and the attribute
-    #   customer.balance                     # => Money value object
-    #   customer.balance.exchange_to("DKK")  # => Money.new(120, "DKK")
-    #   customer.balance > Money.new(10)     # => true
-    #   customer.balance == Money.new(20)    # => true
-    #   customer.balance < Money.new(5)      # => false
-    #
-    # Value objects can also be composed of multiple attributes, such as the case of Address. The order of the mappings will
-    # determine the order of the parameters. Example:
-    #
-    #   customer.address_street = "Hyancintvej"
-    #   customer.address_city   = "Copenhagen"
-    #   customer.address        # => Address.new("Hyancintvej", "Copenhagen")
-    #   customer.address = Address.new("May Street", "Chicago")
-    #   customer.address_street # => "May Street"
-    #   customer.address_city   # => "Chicago"
-    #
-    # == Writing value objects
-    #
-    # Value objects are immutable and interchangeable objects that represent a given value, such as a Money object representing
-    # $5. Two Money objects both representing $5 should be equal (through methods such as <tt>==</tt> and <tt><=></tt> from Comparable if ranking
-    # makes sense). This is unlike entity objects where equality is determined by identity. An entity class such as Customer can
-    # easily have two different objects that both have an address on Hyancintvej. Entity identity is determined by object or
-    # relational unique identifiers (such as primary keys). Normal ActiveRecord::Base classes are entity objects.
-    #
-    # It's also important to treat the value objects as immutable. Don't allow the Money object to have its amount changed after
-    # creation. Create a new Money object with the new value instead. This is exemplified by the Money#exchange_to method that
-    # returns a new value object instead of changing its own values. Active Record won't persist value objects that have been
-    # changed through means other than the writer method.
-    #
-    # The immutable requirement is enforced by Active Record by freezing any object assigned as a value object. Attempting to
-    # change it afterwards will result in a ActiveSupport::FrozenObjectError.
-    #
-    # Read more about value objects on http://c2.com/cgi/wiki?ValueObject and on the dangers of not keeping value objects
-    # immutable on http://c2.com/cgi/wiki?ValueObjectsShouldBeImmutable
-    #
-    # == Custom constructors and converters
-    #
-    # By default value objects are initialized by calling the <tt>new</tt> constructor of the value class passing each of the
-    # mapped attributes, in the order specified by the <tt>:mapping</tt> option, as arguments. If the value class doesn't support
-    # this convention then +composed_of+ allows a custom constructor to be specified.
-    #
-    # When a new value is assigned to the value object the default assumption is that the new value is an instance of the value
-    # class. Specifying a custom converter allows the new value to be automatically converted to an instance of value class if
-    # necessary.
-    #
-    # For example, the NetworkResource model has +network_address+ and +cidr_range+ attributes that should be aggregated using the
-    # NetAddr::CIDR value class (http://netaddr.rubyforge.org). The constructor for the value class is called +create+ and it
-    # expects a CIDR address string as a parameter. New values can be assigned to the value object using either another
-    # NetAddr::CIDR object, a string or an array. The <tt>:constructor</tt> and <tt>:converter</tt> options can be used to
-    # meet these requirements:
-    #
-    #   class NetworkResource < ActiveRecord::Base
-    #     composed_of :cidr,
-    #                 :class_name => 'NetAddr::CIDR',
-    #                 :mapping => [ %w(network_address network), %w(cidr_range bits) ],
-    #                 :allow_nil => true,
-    #                 :constructor => Proc.new { |network_address, cidr_range| NetAddr::CIDR.create("#{network_address}/#{cidr_range}") },
-    #                 :converter => Proc.new { |value| NetAddr::CIDR.create(value.is_a?(Array) ? value.join('/') : value) }
-    #   end
-    #
-    #   # This calls the :constructor
-    #   network_resource = NetworkResource.new(:network_address => '192.168.0.1', :cidr_range => 24)
-    #
-    #   # These assignments will both use the :converter
-    #   network_resource.cidr = [ '192.168.2.1', 8 ]
-    #   network_resource.cidr = '192.168.0.1/24'
-    #
-    #   # This assignment won't use the :converter as the value is already an instance of the value class
-    #   network_resource.cidr = NetAddr::CIDR.create('192.168.2.1/8')
-    #
-    #   # Saving and then reloading will use the :constructor on reload
-    #   network_resource.save
-    #   network_resource.reload
-    #
-    # == Finding records by a value object
-    #
-    # Once a +composed_of+ relationship is specified for a model, records can be loaded from the database by specifying an instance
-    # of the value object in the conditions hash. The following example finds all customers with +balance_amount+ equal to 20 and
-    # +balance_currency+ equal to "USD":
-    #
-    #   Customer.find(:all, :conditions => {:balance => Money.new(20, "USD")})
-    #
-    module ClassMethods
-      # Adds reader and writer methods for manipulating a value object:
-      # <tt>composed_of :address</tt> adds <tt>address</tt> and <tt>address=(new_address)</tt> methods.
-      #
-      # Options are:
-      # * <tt>:class_name</tt> - Specifies the class name of the association. Use it only if that name can't be inferred
-      #   from the part id. So <tt>composed_of :address</tt> will by default be linked to the Address class, but
-      #   if the real class name is CompanyAddress, you'll have to specify it with this option.
-      # * <tt>:mapping</tt> - Specifies the mapping of entity attributes to attributes of the value object. Each mapping
-      #   is represented as an array where the first item is the name of the entity attribute and the second item is the
-      #   name the attribute in the value object. The order in which mappings are defined determine the order in which
-      #   attributes are sent to the value class constructor.
-      # * <tt>:allow_nil</tt> - Specifies that the value object will not be instantiated when all mapped
-      #   attributes are +nil+.  Setting the value object to +nil+ has the effect of writing +nil+ to all mapped attributes.
-      #   This defaults to +false+.
-      # * <tt>:constructor</tt> - A symbol specifying the name of the constructor method or a Proc that is called to
-      #   initialize the value object. The constructor is passed all of the mapped attributes, in the order that they
-      #   are defined in the <tt>:mapping option</tt>, as arguments and uses them to instantiate a <tt>:class_name</tt> object.
-      #   The default is <tt>:new</tt>.
-      # * <tt>:converter</tt> - A symbol specifying the name of a class method of <tt>:class_name</tt> or a Proc that is
-      #   called when a new value is assigned to the value object. The converter is passed the single value that is used
-      #   in the assignment and is only called if the new value is not an instance of <tt>:class_name</tt>.
-      #
-      # Option examples:
-      #   composed_of :temperature, :mapping => %w(reading celsius)
-      #   composed_of :balance, :class_name => "Money", :mapping => %w(balance amount), :converter => Proc.new { |balance| balance.to_money }
-      #   composed_of :address, :mapping => [ %w(address_street street), %w(address_city city) ]
-      #   composed_of :gps_location
-      #   composed_of :gps_location, :allow_nil => true
-      #   composed_of :ip_address,
-      #               :class_name => 'IPAddr',
-      #               :mapping => %w(ip to_i),
-      #               :constructor => Proc.new { |ip| IPAddr.new(ip, Socket::AF_INET) },
-      #               :converter => Proc.new { |ip| ip.is_a?(Integer) ? IPAddr.new(ip, Socket::AF_INET) : IPAddr.new(ip.to_s) }
-      #
-      def composed_of(part_id, options = {}, &block)
-        options.assert_valid_keys(:class_name, :mapping, :allow_nil, :constructor, :converter)
-
-        name        = part_id.id2name
-        class_name  = options[:class_name]  || name.camelize
-        mapping     = options[:mapping]     || [ name, name ]
-        mapping     = [ mapping ] unless mapping.first.is_a?(Array)
-        allow_nil   = options[:allow_nil]   || false
-        constructor = options[:constructor] || :new
-        converter   = options[:converter]   || block
-
-        ActiveSupport::Deprecation.warn('The conversion block has been deprecated, use the :converter option instead.', caller) if block_given?
-
-        reader_method(name, class_name, mapping, allow_nil, constructor)
-        writer_method(name, class_name, mapping, allow_nil, converter)
-
-        create_reflection(:composed_of, part_id, options, self)
-      end
-
-      private
-        def reader_method(name, class_name, mapping, allow_nil, constructor)
-          module_eval do
-            define_method(name) do |*args|
-              force_reload = args.first || false
-              if (instance_variable_get("@#{name}").nil? || force_reload) && (!allow_nil || mapping.any? {|pair| !read_attribute(pair.first).nil? })
-                attrs = mapping.collect {|pair| read_attribute(pair.first)}
-                object = case constructor
-                  when Symbol
-                    class_name.constantize.send(constructor, *attrs)
-                  when Proc, Method
-                    constructor.call(*attrs)
-                  else
-                    raise ArgumentError, 'Constructor must be a symbol denoting the constructor method to call or a Proc to be invoked.'
-                  end
-                instance_variable_set("@#{name}", object)
-              end
-              instance_variable_get("@#{name}")
-            end
-          end
-
-        end
-
-        def writer_method(name, class_name, mapping, allow_nil, converter)
-          module_eval do
-            define_method("#{name}=") do |part|
-              if part.nil? && allow_nil
-                mapping.each { |pair| self[pair.first] = nil }
-                instance_variable_set("@#{name}", nil)
-              else
-                unless part.is_a?(class_name.constantize) || converter.nil?
-                  part = case converter
-                    when Symbol
-                     class_name.constantize.send(converter, part)
-                    when Proc, Method
-                      converter.call(part)
-                    else
-                      raise ArgumentError, 'Converter must be a symbol denoting the converter method to call or a Proc to be invoked.'
-                    end
-                end
-                mapping.each { |pair| self[pair.first] = part.send(pair.last) }
-                instance_variable_set("@#{name}", part.freeze)
-              end
-            end
-          end
-        end
-    end
-  end
-end
@@ -1,389 +0,0 @@
-module ActiveRecord
-  # See ActiveRecord::AssociationPreload::ClassMethods for documentation.
-  module AssociationPreload #:nodoc:
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
-
-    # Implements the details of eager loading of ActiveRecord associations.
-    # Application developers should not use this module directly.
-    #
-    # ActiveRecord::Base is extended with this module. The source code in
-    # ActiveRecord::Base references methods defined in this module.
-    #
-    # Note that 'eager loading' and 'preloading' are actually the same thing.
-    # However, there are two different eager loading strategies.
-    #
-    # The first one is by using table joins. This was only strategy available
-    # prior to Rails 2.1. Suppose that you have an Author model with columns
-    # 'name' and 'age', and a Book model with columns 'name' and 'sales'. Using
-    # this strategy, ActiveRecord would try to retrieve all data for an author
-    # and all of its books via a single query:
-    #
-    #   SELECT * FROM authors
-    #   LEFT OUTER JOIN books ON authors.id = books.id
-    #   WHERE authors.name = 'Ken Akamatsu'
-    #
-    # However, this could result in many rows that contain redundant data. After
-    # having received the first row, we already have enough data to instantiate
-    # the Author object. In all subsequent rows, only the data for the joined
-    # 'books' table is useful; the joined 'authors' data is just redundant, and
-    # processing this redundant data takes memory and CPU time. The problem
-    # quickly becomes worse and worse as the level of eager loading increases
-    # (i.e. if ActiveRecord is to eager load the associations' assocations as
-    # well).
-    #
-    # The second strategy is to use multiple database queries, one for each
-    # level of association. Since Rails 2.1, this is the default strategy. In
-    # situations where a table join is necessary (e.g. when the +:conditions+
-    # option references an association's column), it will fallback to the table
-    # join strategy.
-    #
-    # See also ActiveRecord::Associations::ClassMethods, which explains eager
-    # loading in a more high-level (application developer-friendly) manner.
-    module ClassMethods
-      protected
-
-      # Eager loads the named associations for the given ActiveRecord record(s).
-      #
-      # In this description, 'association name' shall refer to the name passed
-      # to an association creation method. For example, a model that specifies
-      # <tt>belongs_to :author</tt>, <tt>has_many :buyers</tt> has association
-      # names +:author+ and +:buyers+.
-      #
-      # == Parameters
-      # +records+ is an array of ActiveRecord::Base. This array needs not be flat,
-      # i.e. +records+ itself may also contain arrays of records. In any case,
-      # +preload_associations+ will preload the associations all records by
-      # flattening +records+.
-      #
-      # +associations+ specifies one or more associations that you want to
-      # preload. It may be:
-      # - a Symbol or a String which specifies a single association name. For
-      #   example, specifiying +:books+ allows this method to preload all books
-      #   for an Author.
-      # - an Array which specifies multiple association names. This array
-      #   is processed recursively. For example, specifying <tt>[:avatar, :books]</tt>
-      #   allows this method to preload an author's avatar as well as all of his
-      #   books.
-      # - a Hash which specifies multiple association names, as well as
-      #   association names for the to-be-preloaded association objects. For
-      #   example, specifying <tt>{ :author => :avatar }</tt> will preload a
-      #   book's author, as well as that author's avatar.
-      #
-      # +:associations+ has the same format as the +:include+ option for
-      # <tt>ActiveRecord::Base.find</tt>. So +associations+ could look like this:
-      #
-      #   :books
-      #   [ :books, :author ]
-      #   { :author => :avatar }
-      #   [ :books, { :author => :avatar } ]
-      #
-      # +preload_options+ contains options that will be passed to ActiveRecord#find
-      # (which is called under the hood for preloading records). But it is passed
-      # only one level deep in the +associations+ argument, i.e. it's not passed
-      # to the child associations when +associations+ is a Hash.
-      def preload_associations(records, associations, preload_options={})
-        records = [records].flatten.compact.uniq
-        return if records.empty?
-        case associations
-        when Array then associations.each {|association| preload_associations(records, association, preload_options)}
-        when Symbol, String then preload_one_association(records, associations.to_sym, preload_options)
-        when Hash then
-          associations.each do |parent, child|
-            raise "parent must be an association name" unless parent.is_a?(String) || parent.is_a?(Symbol)
-            preload_associations(records, parent, preload_options)
-            reflection = reflections[parent]
-            parents = records.map {|record| record.send(reflection.name)}.flatten.compact
-            unless parents.empty?
-              parents.first.class.preload_associations(parents, child)
-            end
-          end
-        end
-      end
-
-      private
-
-      # Preloads a specific named association for the given records. This is
-      # called by +preload_associations+ as its base case.
-      def preload_one_association(records, association, preload_options={})
-        class_to_reflection = {}
-        # Not all records have the same class, so group then preload
-        # group on the reflection itself so that if various subclass share the same association then we do not split them
-        # unnecessarily
-        records.group_by {|record| class_to_reflection[record.class] ||= record.class.reflections[association]}.each do |reflection, records|
-          raise ConfigurationError, "Association named '#{ association }' was not found; perhaps you misspelled it?" unless reflection
-
-          # 'reflection.macro' can return 'belongs_to', 'has_many', etc. Thus,
-          # the following could call 'preload_belongs_to_association',
-          # 'preload_has_many_association', etc.
-          send("preload_#{reflection.macro}_association", records, reflection, preload_options)
-        end
-      end
-
-      def add_preloaded_records_to_collection(parent_records, reflection_name, associated_record)
-        parent_records.each do |parent_record|
-          association_proxy = parent_record.send(reflection_name)
-          association_proxy.loaded
-          association_proxy.target.push(*[associated_record].flatten)
-        end
-      end
-
-      def add_preloaded_record_to_collection(parent_records, reflection_name, associated_record)
-        parent_records.each do |parent_record|
-          parent_record.send("set_#{reflection_name}_target", associated_record)
-        end
-      end
-
-      def set_association_collection_records(id_to_record_map, reflection_name, associated_records, key)
-        associated_records.each do |associated_record|
-          mapped_records = id_to_record_map[associated_record[key].to_s]
-          add_preloaded_records_to_collection(mapped_records, reflection_name, associated_record)
-        end
-      end
-
-      def set_association_single_records(id_to_record_map, reflection_name, associated_records, key)
-        seen_keys = {}
-        associated_records.each do |associated_record|
-          #this is a has_one or belongs_to: there should only be one record.
-          #Unfortunately we can't (in portable way) ask the database for 'all records where foo_id in (x,y,z), but please
-          # only one row per distinct foo_id' so this where we enforce that
-          next if seen_keys[associated_record[key].to_s]
-          seen_keys[associated_record[key].to_s] = true
-          mapped_records = id_to_record_map[associated_record[key].to_s]
-          mapped_records.each do |mapped_record|
-            mapped_record.send("set_#{reflection_name}_target", associated_record)
-          end
-        end
-      end
-
-      # Given a collection of ActiveRecord objects, constructs a Hash which maps
-      # the objects' IDs to the relevant objects. Returns a 2-tuple
-      # <tt>(id_to_record_map, ids)</tt> where +id_to_record_map+ is the Hash,
-      # and +ids+ is an Array of record IDs.
-      def construct_id_map(records, primary_key=nil)
-        id_to_record_map = {}
-        ids = []
-        records.each do |record|
-          primary_key ||= record.class.primary_key
-          ids << record[primary_key]
-          mapped_records = (id_to_record_map[ids.last.to_s] ||= [])
-          mapped_records << record
-        end
-        ids.uniq!
-        return id_to_record_map, ids
-      end
-
-      def preload_has_and_belongs_to_many_association(records, reflection, preload_options={})
-        table_name = reflection.klass.quoted_table_name
-        id_to_record_map, ids = construct_id_map(records)
-        records.each {|record| record.send(reflection.name).loaded}
-        options = reflection.options
-
-        conditions = "t0.#{reflection.primary_key_name} #{in_or_equals_for_ids(ids)}"
-        conditions << append_conditions(reflection, preload_options)
-
-        associated_records = reflection.klass.with_exclusive_scope do
-          reflection.klass.find(:all, :conditions => [conditions, ids],
-            :include => options[:include],
-            :joins => "INNER JOIN #{connection.quote_table_name options[:join_table]} t0 ON #{reflection.klass.quoted_table_name}.#{reflection.klass.primary_key} = t0.#{reflection.association_foreign_key}",
-            :select => "#{options[:select] || table_name+'.*'}, t0.#{reflection.primary_key_name} as the_parent_record_id",
-            :order => options[:order])
-        end
-        set_association_collection_records(id_to_record_map, reflection.name, associated_records, 'the_parent_record_id')
-      end
-
-      def preload_has_one_association(records, reflection, preload_options={})
-        return if records.first.send("loaded_#{reflection.name}?")
-        id_to_record_map, ids = construct_id_map(records, reflection.options[:primary_key])
-        options = reflection.options
-        records.each {|record| record.send("set_#{reflection.name}_target", nil)}
-        if options[:through]
-          through_records = preload_through_records(records, reflection, options[:through])
-          through_reflection = reflections[options[:through]]
-          through_primary_key = through_reflection.primary_key_name
-          unless through_records.empty?
-            source = reflection.source_reflection.name
-            through_records.first.class.preload_associations(through_records, source)
-            if through_reflection.macro == :belongs_to
-              rev_id_to_record_map, rev_ids = construct_id_map(records, through_primary_key)
-              rev_primary_key = through_reflection.klass.primary_key
-              through_records.each do |through_record|
-                add_preloaded_record_to_collection(rev_id_to_record_map[through_record[rev_primary_key].to_s],
-                                                   reflection.name, through_record.send(source))
-              end
-            else
-              through_records.each do |through_record|
-                add_preloaded_record_to_collection(id_to_record_map[through_record[through_primary_key].to_s],
-                                                   reflection.name, through_record.send(source))
-              end
-            end
-          end
-        else
-          set_association_single_records(id_to_record_map, reflection.name, find_associated_records(ids, reflection, preload_options), reflection.primary_key_name)
-        end
-      end
-
-      def preload_has_many_association(records, reflection, preload_options={})
-        return if records.first.send(reflection.name).loaded?
-        options = reflection.options
-
-        primary_key_name = reflection.through_reflection_primary_key_name
-        id_to_record_map, ids = construct_id_map(records, primary_key_name || reflection.options[:primary_key])
-        records.each {|record| record.send(reflection.name).loaded}
-
-        if options[:through]
-          through_records = preload_through_records(records, reflection, options[:through])
-          through_reflection = reflections[options[:through]]
-          unless through_records.empty?
-            source = reflection.source_reflection.name
-            through_records.first.class.preload_associations(through_records, source, options)
-            through_records.each do |through_record|
-              through_record_id = through_record[reflection.through_reflection_primary_key].to_s
-              add_preloaded_records_to_collection(id_to_record_map[through_record_id], reflection.name, through_record.send(source))
-            end
-          end
-
-        else
-          set_association_collection_records(id_to_record_map, reflection.name, find_associated_records(ids, reflection, preload_options),
-                                             reflection.primary_key_name)
-        end
-      end
-
-      def preload_through_records(records, reflection, through_association)
-        through_reflection = reflections[through_association]
-        through_primary_key = through_reflection.primary_key_name
-
-        if reflection.options[:source_type]
-          interface = reflection.source_reflection.options[:foreign_type]
-          preload_options = {:conditions => ["#{connection.quote_column_name interface} = ?", reflection.options[:source_type]]}
-
-          records.compact!
-          records.first.class.preload_associations(records, through_association, preload_options)
-
-          # Dont cache the association - we would only be caching a subset
-          through_records = []
-          records.each do |record|
-            proxy = record.send(through_association)
-
-            if proxy.respond_to?(:target)
-              through_records << proxy.target
-              proxy.reset
-            else # this is a has_one :through reflection
-              through_records << proxy if proxy
-            end
-          end
-          through_records.flatten!
-        else
-          records.first.class.preload_associations(records, through_association)
-          through_records = records.map {|record| record.send(through_association)}.flatten
-        end
-        through_records.compact!
-        through_records
-      end
-
-      def preload_belongs_to_association(records, reflection, preload_options={})
-        return if records.first.send("loaded_#{reflection.name}?")
-        options = reflection.options
-        primary_key_name = reflection.primary_key_name
-
-        if options[:polymorphic]
-          polymorph_type = options[:foreign_type]
-          klasses_and_ids = {}
-
-          # Construct a mapping from klass to a list of ids to load and a mapping of those ids back to their parent_records
-          records.each do |record|
-            if klass = record.send(polymorph_type)
-              klass_id = record.send(primary_key_name)
-              if klass_id
-                id_map = klasses_and_ids[klass] ||= {}
-                id_list_for_klass_id = (id_map[klass_id.to_s] ||= [])
-                id_list_for_klass_id << record
-              end
-            end
-          end
-          klasses_and_ids = klasses_and_ids.to_a
-        else
-          id_map = {}
-          records.each do |record|
-            key = record.send(primary_key_name)
-            if key
-              mapped_records = (id_map[key.to_s] ||= [])
-              mapped_records << record
-            end
-          end
-          klasses_and_ids = [[reflection.klass.name, id_map]]
-        end
-
-        klasses_and_ids.each do |klass_and_id|
-          klass_name, id_map = *klass_and_id
-          next if id_map.empty?
-          klass = klass_name.constantize
-
-          table_name = klass.quoted_table_name
-          primary_key = klass.primary_key
-          column_type = klass.columns.detect{|c| c.name == primary_key}.type
-          ids = id_map.keys.map do |id|
-            if column_type == :integer
-              id.to_i
-            elsif column_type == :float
-              id.to_f
-            else
-              id
-            end
-          end
-          conditions = "#{table_name}.#{connection.quote_column_name(primary_key)} #{in_or_equals_for_ids(ids)}"
-          conditions << append_conditions(reflection, preload_options)
-          associated_records = klass.with_exclusive_scope do
-            klass.find(:all, :conditions => [conditions, ids],
-                                          :include => options[:include],
-                                          :select => options[:select],
-                                          :joins => options[:joins],
-                                          :order => options[:order])
-          end
-          set_association_single_records(id_map, reflection.name, associated_records, primary_key)
-        end
-      end
-
-      def find_associated_records(ids, reflection, preload_options)
-        options = reflection.options
-        table_name = reflection.klass.quoted_table_name
-
-        if interface = reflection.options[:as]
-          conditions = "#{reflection.klass.quoted_table_name}.#{connection.quote_column_name "#{interface}_id"} #{in_or_equals_for_ids(ids)} and #{reflection.klass.quoted_table_name}.#{connection.quote_column_name "#{interface}_type"} = '#{self.base_class.sti_name}'"
-        else
-          foreign_key = reflection.primary_key_name
-          conditions = "#{reflection.klass.quoted_table_name}.#{foreign_key} #{in_or_equals_for_ids(ids)}"
-        end
-
-        conditions << append_conditions(reflection, preload_options)
-
-        reflection.klass.with_exclusive_scope do
-          reflection.klass.find(:all,
-                              :select => (preload_options[:select] || options[:select] || "#{table_name}.*"),
-                              :include => preload_options[:include] || options[:include],
-                              :conditions => [conditions, ids],
-                              :joins => options[:joins],
-                              :group => preload_options[:group] || options[:group],
-                              :order => preload_options[:order] || options[:order])
-        end
-      end
-
-
-      def interpolate_sql_for_preload(sql)
-        instance_eval("%@#{sql.gsub('@', '\@')}@")
-      end
-
-      def append_conditions(reflection, preload_options)
-        sql = ""
-        sql << " AND (#{interpolate_sql_for_preload(reflection.sanitized_conditions)})" if reflection.sanitized_conditions
-        sql << " AND (#{sanitize_sql preload_options[:conditions]})" if preload_options[:conditions]
-        sql
-      end
-
-      def in_or_equals_for_ids(ids)
-        ids.size > 1 ? "IN (?)" : "= ?"
-      end
-    end
-  end
-end
@@ -1,2241 +0,0 @@
-module ActiveRecord
-  class HasManyThroughAssociationNotFoundError < ActiveRecordError #:nodoc:
-    def initialize(owner_class_name, reflection)
-      super("Could not find the association #{reflection.options[:through].inspect} in model #{owner_class_name}")
-    end
-  end
-
-  class HasManyThroughAssociationPolymorphicError < ActiveRecordError #:nodoc:
-    def initialize(owner_class_name, reflection, source_reflection)
-      super("Cannot have a has_many :through association '#{owner_class_name}##{reflection.name}' on the polymorphic object '#{source_reflection.class_name}##{source_reflection.name}'.")
-    end
-  end
-
-  class HasManyThroughAssociationPointlessSourceTypeError < ActiveRecordError #:nodoc:
-    def initialize(owner_class_name, reflection, source_reflection)
-      super("Cannot have a has_many :through association '#{owner_class_name}##{reflection.name}' with a :source_type option if the '#{reflection.through_reflection.class_name}##{source_reflection.name}' is not polymorphic.  Try removing :source_type on your association.")
-    end
-  end
-
-  class HasManyThroughSourceAssociationNotFoundError < ActiveRecordError #:nodoc:
-    def initialize(reflection)
-      through_reflection      = reflection.through_reflection
-      source_reflection_names = reflection.source_reflection_names
-      source_associations     = reflection.through_reflection.klass.reflect_on_all_associations.collect { |a| a.name.inspect }
-      super("Could not find the source association(s) #{source_reflection_names.collect(&:inspect).to_sentence(:two_words_connector => ' or ', :last_word_connector => ', or ', :locale => :en)} in model #{through_reflection.klass}.  Try 'has_many #{reflection.name.inspect}, :through => #{through_reflection.name.inspect}, :source => <name>'.  Is it one of #{source_associations.to_sentence(:two_words_connector => ' or ', :last_word_connector => ', or ', :locale => :en)}?")
-    end
-  end
-
-  class HasManyThroughSourceAssociationMacroError < ActiveRecordError #:nodoc:
-    def initialize(reflection)
-      through_reflection = reflection.through_reflection
-      source_reflection  = reflection.source_reflection
-      super("Invalid source reflection macro :#{source_reflection.macro}#{" :through" if source_reflection.options[:through]} for has_many #{reflection.name.inspect}, :through => #{through_reflection.name.inspect}.  Use :source to specify the source reflection.")
-    end
-  end
-
-  class HasManyThroughCantAssociateThroughHasOneOrManyReflection < ActiveRecordError #:nodoc:
-    def initialize(owner, reflection)
-      super("Cannot modify association '#{owner.class.name}##{reflection.name}' because the source reflection class '#{reflection.source_reflection.class_name}' is associated to '#{reflection.through_reflection.class_name}' via :#{reflection.source_reflection.macro}.")
-    end
-  end
-  HasManyThroughCantAssociateThroughHasManyReflection = ActiveSupport::Deprecation::DeprecatedConstantProxy.new('ActiveRecord::HasManyThroughCantAssociateThroughHasManyReflection', 'ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection')
-
-  class HasManyThroughCantAssociateNewRecords < ActiveRecordError #:nodoc:
-    def initialize(owner, reflection)
-      super("Cannot associate new records through '#{owner.class.name}##{reflection.name}' on '#{reflection.source_reflection.class_name rescue nil}##{reflection.source_reflection.name rescue nil}'. Both records must have an id in order to create the has_many :through record associating them.")
-    end
-  end
-
-  class HasManyThroughCantDissociateNewRecords < ActiveRecordError #:nodoc:
-    def initialize(owner, reflection)
-      super("Cannot dissociate new records through '#{owner.class.name}##{reflection.name}' on '#{reflection.source_reflection.class_name rescue nil}##{reflection.source_reflection.name rescue nil}'. Both records must have an id in order to delete the has_many :through record associating them.")
-    end
-  end
-
-  class HasAndBelongsToManyAssociationForeignKeyNeeded < ActiveRecordError #:nodoc:
-    def initialize(reflection)
-      super("Cannot create self referential has_and_belongs_to_many association on '#{reflection.class_name rescue nil}##{reflection.name rescue nil}'. :association_foreign_key cannot be the same as the :foreign_key.")
-    end
-  end
-
-  class EagerLoadPolymorphicError < ActiveRecordError #:nodoc:
-    def initialize(reflection)
-      super("Can not eagerly load the polymorphic association #{reflection.name.inspect}")
-    end
-  end
-
-  class ReadOnlyAssociation < ActiveRecordError #:nodoc:
-    def initialize(reflection)
-      super("Can not add to a has_many :through association.  Try adding to #{reflection.through_reflection.name.inspect}.")
-    end
-  end
-
-  # See ActiveRecord::Associations::ClassMethods for documentation.
-  module Associations # :nodoc:
-    # These classes will be loaded when associations are created.
-    # So there is no need to eager load them.
-    autoload :AssociationCollection, 'active_record/associations/association_collection'
-    autoload :AssociationProxy, 'active_record/associations/association_proxy'
-    autoload :BelongsToAssociation, 'active_record/associations/belongs_to_association'
-    autoload :BelongsToPolymorphicAssociation, 'active_record/associations/belongs_to_polymorphic_association'
-    autoload :HasAndBelongsToManyAssociation, 'active_record/associations/has_and_belongs_to_many_association'
-    autoload :HasManyAssociation, 'active_record/associations/has_many_association'
-    autoload :HasManyThroughAssociation, 'active_record/associations/has_many_through_association'
-    autoload :HasOneAssociation, 'active_record/associations/has_one_association'
-    autoload :HasOneThroughAssociation, 'active_record/associations/has_one_through_association'
-
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
-
-    # Clears out the association cache
-    def clear_association_cache #:nodoc:
-      self.class.reflect_on_all_associations.to_a.each do |assoc|
-        instance_variable_set "@#{assoc.name}", nil
-      end unless self.new_record?
-    end
-
-    private
-      # Gets the specified association instance if it responds to :loaded?, nil otherwise.
-      def association_instance_get(name)
-        association = instance_variable_get("@#{name}")
-        association if association.respond_to?(:loaded?)
-      end
-
-      # Set the specified association instance.
-      def association_instance_set(name, association)
-        instance_variable_set("@#{name}", association)
-      end
-
-    # Associations are a set of macro-like class methods for tying objects together through foreign keys. They express relationships like
-    # "Project has one Project Manager" or "Project belongs to a Portfolio". Each macro adds a number of methods to the class which are
-    # specialized according to the collection or association symbol and the options hash. It works much the same way as Ruby's own <tt>attr*</tt>
-    # methods. Example:
-    #
-    #   class Project < ActiveRecord::Base
-    #     belongs_to              :portfolio
-    #     has_one                 :project_manager
-    #     has_many                :milestones
-    #     has_and_belongs_to_many :categories
-    #   end
-    #
-    # The project class now has the following methods (and more) to ease the traversal and manipulation of its relationships:
-    # * <tt>Project#portfolio, Project#portfolio=(portfolio), Project#portfolio.nil?</tt>
-    # * <tt>Project#project_manager, Project#project_manager=(project_manager), Project#project_manager.nil?,</tt>
-    # * <tt>Project#milestones.empty?, Project#milestones.size, Project#milestones, Project#milestones<<(milestone),</tt>
-    #   <tt>Project#milestones.delete(milestone), Project#milestones.find(milestone_id), Project#milestones.find(:all, options),</tt>
-    #   <tt>Project#milestones.build, Project#milestones.create</tt>
-    # * <tt>Project#categories.empty?, Project#categories.size, Project#categories, Project#categories<<(category1),</tt>
-    #   <tt>Project#categories.delete(category1)</tt>
-    #
-    # === A word of warning
-    #
-    # Don't create associations that have the same name as instance methods of ActiveRecord::Base. Since the association
-    # adds a method with that name to its model, it will override the inherited method and break things.
-    # For instance, +attributes+ and +connection+ would be bad choices for association names.
-    #
-    # == Auto-generated methods
-    #
-    # === Singular associations (one-to-one)
-    #                                     |            |  belongs_to  |
-    #   generated methods                 | belongs_to | :polymorphic | has_one
-    #   ----------------------------------+------------+--------------+---------
-    #   other                             |     X      |      X       |    X
-    #   other=(other)                     |     X      |      X       |    X
-    #   build_other(attributes={})        |     X      |              |    X
-    #   create_other(attributes={})       |     X      |              |    X
-    #   other.create!(attributes={})      |            |              |    X
-    #
-    # ===Collection associations (one-to-many / many-to-many)
-    #                                     |       |          | has_many
-    #   generated methods                 | habtm | has_many | :through
-    #   ----------------------------------+-------+----------+----------
-    #   others                            |   X   |    X     |    X
-    #   others=(other,other,...)          |   X   |    X     |    X
-    #   other_ids                         |   X   |    X     |    X
-    #   other_ids=(id,id,...)             |   X   |    X     |    X
-    #   others<<                          |   X   |    X     |    X
-    #   others.push                       |   X   |    X     |    X
-    #   others.concat                     |   X   |    X     |    X
-    #   others.build(attributes={})       |   X   |    X     |    X
-    #   others.create(attributes={})      |   X   |    X     |    X
-    #   others.create!(attributes={})     |   X   |    X     |    X
-    #   others.size                       |   X   |    X     |    X
-    #   others.length                     |   X   |    X     |    X
-    #   others.count                      |   X   |    X     |    X
-    #   others.sum(args*,&block)          |   X   |    X     |    X
-    #   others.empty?                     |   X   |    X     |    X
-    #   others.clear                      |   X   |    X     |    X
-    #   others.delete(other,other,...)    |   X   |    X     |    X
-    #   others.delete_all                 |   X   |    X     |
-    #   others.destroy_all                |   X   |    X     |    X
-    #   others.find(*args)                |   X   |    X     |    X
-    #   others.find_first                 |   X   |          |
-    #   others.exists?                    |   X   |    X     |    X
-    #   others.uniq                       |   X   |    X     |    X
-    #   others.reset                      |   X   |    X     |    X
-    #
-    # == Cardinality and associations
-    #
-    # Active Record associations can be used to describe one-to-one, one-to-many and many-to-many
-    # relationships between models. Each model uses an association to describe its role in
-    # the relation. The +belongs_to+ association is always used in the model that has
-    # the foreign key.
-    #
-    # === One-to-one
-    #
-    # Use +has_one+ in the base, and +belongs_to+ in the associated model.
-    #
-    #   class Employee < ActiveRecord::Base
-    #     has_one :office
-    #   end
-    #   class Office < ActiveRecord::Base
-    #     belongs_to :employee    # foreign key - employee_id
-    #   end
-    #
-    # === One-to-many
-    #
-    # Use +has_many+ in the base, and +belongs_to+ in the associated model.
-    #
-    #   class Manager < ActiveRecord::Base
-    #     has_many :employees
-    #   end
-    #   class Employee < ActiveRecord::Base
-    #     belongs_to :manager     # foreign key - manager_id
-    #   end
-    #
-    # === Many-to-many
-    #
-    # There are two ways to build a many-to-many relationship.
-    #
-    # The first way uses a +has_many+ association with the <tt>:through</tt> option and a join model, so
-    # there are two stages of associations.
-    #
-    #   class Assignment < ActiveRecord::Base
-    #     belongs_to :programmer  # foreign key - programmer_id
-    #     belongs_to :project     # foreign key - project_id
-    #   end
-    #   class Programmer < ActiveRecord::Base
-    #     has_many :assignments
-    #     has_many :projects, :through => :assignments
-    #   end
-    #   class Project < ActiveRecord::Base
-    #     has_many :assignments
-    #     has_many :programmers, :through => :assignments
-    #   end
-    #
-    # For the second way, use +has_and_belongs_to_many+ in both models. This requires a join table
-    # that has no corresponding model or primary key.
-    #
-    #   class Programmer < ActiveRecord::Base
-    #     has_and_belongs_to_many :projects       # foreign keys in the join table
-    #   end
-    #   class Project < ActiveRecord::Base
-    #     has_and_belongs_to_many :programmers    # foreign keys in the join table
-    #   end
-    #
-    # Choosing which way to build a many-to-many relationship is not always simple.
-    # If you need to work with the relationship model as its own entity,
-    # use <tt>has_many :through</tt>. Use +has_and_belongs_to_many+ when working with legacy schemas or when
-    # you never work directly with the relationship itself.
-    #
-    # == Is it a +belongs_to+ or +has_one+ association?
-    #
-    # Both express a 1-1 relationship. The difference is mostly where to place the foreign key, which goes on the table for the class
-    # declaring the +belongs_to+ relationship. Example:
-    #
-    #   class User < ActiveRecord::Base
-    #     # I reference an account.
-    #     belongs_to :account
-    #   end
-    #
-    #   class Account < ActiveRecord::Base
-    #     # One user references me.
-    #     has_one :user
-    #   end
-    #
-    # The tables for these classes could look something like:
-    #
-    #   CREATE TABLE users (
-    #     id int(11) NOT NULL auto_increment,
-    #     account_id int(11) default NULL,
-    #     name varchar default NULL,
-    #     PRIMARY KEY  (id)
-    #   )
-    #
-    #   CREATE TABLE accounts (
-    #     id int(11) NOT NULL auto_increment,
-    #     name varchar default NULL,
-    #     PRIMARY KEY  (id)
-    #   )
-    #
-    # == Unsaved objects and associations
-    #
-    # You can manipulate objects and associations before they are saved to the database, but there is some special behavior you should be
-    # aware of, mostly involving the saving of associated objects.
-    #
-    # Unless you set the :autosave option on a <tt>has_one</tt>, <tt>belongs_to</tt>,
-    # <tt>has_many</tt>, or <tt>has_and_belongs_to_many</tt> association. Setting it
-    # to +true+ will _always_ save the members, whereas setting it to +false+ will
-    # _never_ save the members.
-    #
-    # === One-to-one associations
-    #
-    # * Assigning an object to a +has_one+ association automatically saves that object and the object being replaced (if there is one), in
-    #   order to update their primary keys - except if the parent object is unsaved (<tt>new_record? == true</tt>).
-    # * If either of these saves fail (due to one of the objects being invalid) the assignment statement returns +false+ and the assignment
-    #   is cancelled.
-    # * If you wish to assign an object to a +has_one+ association without saving it, use the <tt>association.build</tt> method (documented below).
-    # * Assigning an object to a +belongs_to+ association does not save the object, since the foreign key field belongs on the parent. It
-    #   does not save the parent either.
-    #
-    # === Collections
-    #
-    # * Adding an object to a collection (+has_many+ or +has_and_belongs_to_many+) automatically saves that object, except if the parent object
-    #   (the owner of the collection) is not yet stored in the database.
-    # * If saving any of the objects being added to a collection (via <tt>push</tt> or similar) fails, then <tt>push</tt> returns +false+.
-    # * You can add an object to a collection without automatically saving it by using the <tt>collection.build</tt> method (documented below).
-    # * All unsaved (<tt>new_record? == true</tt>) members of the collection are automatically saved when the parent is saved.
-    #
-    # === Association callbacks
-    #
-    # Similar to the normal callbacks that hook into the lifecycle of an Active Record object, you can also define callbacks that get
-    # triggered when you add an object to or remove an object from an association collection. Example:
-    #
-    #   class Project
-    #     has_and_belongs_to_many :developers, :after_add => :evaluate_velocity
-    #
-    #     def evaluate_velocity(developer)
-    #       ...
-    #     end
-    #   end
-    #
-    # It's possible to stack callbacks by passing them as an array. Example:
-    #
-    #   class Project
-    #     has_and_belongs_to_many :developers, :after_add => [:evaluate_velocity, Proc.new { |p, d| p.shipping_date = Time.now}]
-    #   end
-    #
-    # Possible callbacks are: +before_add+, +after_add+, +before_remove+ and +after_remove+.
-    #
-    # Should any of the +before_add+ callbacks throw an exception, the object does not get added to the collection. Same with
-    # the +before_remove+ callbacks; if an exception is thrown the object doesn't get removed.
-    #
-    # === Association extensions
-    #
-    # The proxy objects that control the access to associations can be extended through anonymous modules. This is especially
-    # beneficial for adding new finders, creators, and other factory-type methods that are only used as part of this association.
-    # Example:
-    #
-    #   class Account < ActiveRecord::Base
-    #     has_many :people do
-    #       def find_or_create_by_name(name)
-    #         first_name, last_name = name.split(" ", 2)
-    #         find_or_create_by_first_name_and_last_name(first_name, last_name)
-    #       end
-    #     end
-    #   end
-    #
-    #   person = Account.find(:first).people.find_or_create_by_name("David Heinemeier Hansson")
-    #   person.first_name # => "David"
-    #   person.last_name  # => "Heinemeier Hansson"
-    #
-    # If you need to share the same extensions between many associations, you can use a named extension module. Example:
-    #
-    #   module FindOrCreateByNameExtension
-    #     def find_or_create_by_name(name)
-    #       first_name, last_name = name.split(" ", 2)
-    #       find_or_create_by_first_name_and_last_name(first_name, last_name)
-    #     end
-    #   end
-    #
-    #   class Account < ActiveRecord::Base
-    #     has_many :people, :extend => FindOrCreateByNameExtension
-    #   end
-    #
-    #   class Company < ActiveRecord::Base
-    #     has_many :people, :extend => FindOrCreateByNameExtension
-    #   end
-    #
-    # If you need to use multiple named extension modules, you can specify an array of modules with the <tt>:extend</tt> option.
-    # In the case of name conflicts between methods in the modules, methods in modules later in the array supercede
-    # those earlier in the array. Example:
-    #
-    #   class Account < ActiveRecord::Base
-    #     has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
-    #   end
-    #
-    # Some extensions can only be made to work with knowledge of the association proxy's internals.
-    # Extensions can access relevant state using accessors on the association proxy:
-    #
-    # * +proxy_owner+ - Returns the object the association is part of.
-    # * +proxy_reflection+ - Returns the reflection object that describes the association.
-    # * +proxy_target+ - Returns the associated object for +belongs_to+ and +has_one+, or the collection of associated objects for +has_many+ and +has_and_belongs_to_many+.
-    #
-    # === Association Join Models
-    #
-    # Has Many associations can be configured with the <tt>:through</tt> option to use an explicit join model to retrieve the data.  This
-    # operates similarly to a +has_and_belongs_to_many+ association.  The advantage is that you're able to add validations,
-    # callbacks, and extra attributes on the join model.  Consider the following schema:
-    #
-    #   class Author < ActiveRecord::Base
-    #     has_many :authorships
-    #     has_many :books, :through => :authorships
-    #   end
-    #
-    #   class Authorship < ActiveRecord::Base
-    #     belongs_to :author
-    #     belongs_to :book
-    #   end
-    #
-    #   @author = Author.find :first
-    #   @author.authorships.collect { |a| a.book } # selects all books that the author's authorships belong to.
-    #   @author.books                              # selects all books by using the Authorship join model
-    #
-    # You can also go through a +has_many+ association on the join model:
-    #
-    #   class Firm < ActiveRecord::Base
-    #     has_many   :clients
-    #     has_many   :invoices, :through => :clients
-    #   end
-    #
-    #   class Client < ActiveRecord::Base
-    #     belongs_to :firm
-    #     has_many   :invoices
-    #   end
-    #
-    #   class Invoice < ActiveRecord::Base
-    #     belongs_to :client
-    #   end
-    #
-    #   @firm = Firm.find :first
-    #   @firm.clients.collect { |c| c.invoices }.flatten # select all invoices for all clients of the firm
-    #   @firm.invoices                                   # selects all invoices by going through the Client join model.
-    #
-    # Similarly you can go through a +has_one+ association on the join model:
-    #
-    #   class Group < ActiveRecord::Base
-    #     has_many   :users
-    #     has_many   :avatars, :through => :users
-    #   end
-    #
-    #   class User < ActiveRecord::Base
-    #     belongs_to :group
-    #     has_one    :avatar
-    #   end
-    #
-    #   class Avatar < ActiveRecord::Base
-    #     belongs_to :user
-    #   end
-    #
-    #   @group = Group.first
-    #   @group.users.collect { |u| u.avatar }.flatten # select all avatars for all users in the group
-    #   @group.avatars                                # selects all avatars by going through the User join model.
-    #
-    # An important caveat with going through +has_one+ or +has_many+ associations on the join model is that these associations are 
-    # *read-only*.  For example, the following would not work following the previous example:
-    #
-    #   @group.avatars << Avatar.new                # this would work if User belonged_to Avatar rather than the other way around.
-    #   @group.avatars.delete(@group.avatars.last)  # so would this
-    #
-    # === Polymorphic Associations
-    #
-    # Polymorphic associations on models are not restricted on what types of models they can be associated with.  Rather, they
-    # specify an interface that a +has_many+ association must adhere to.
-    #
-    #   class Asset < ActiveRecord::Base
-    #     belongs_to :attachable, :polymorphic => true
-    #   end
-    #
-    #   class Post < ActiveRecord::Base
-    #     has_many :assets, :as => :attachable         # The :as option specifies the polymorphic interface to use.
-    #   end
-    #
-    #   @asset.attachable = @post
-    #
-    # This works by using a type column in addition to a foreign key to specify the associated record.  In the Asset example, you'd need
-    # an +attachable_id+ integer column and an +attachable_type+ string column.
-    #
-    # Using polymorphic associations in combination with single table inheritance (STI) is a little tricky. In order
-    # for the associations to work as expected, ensure that you store the base model for the STI models in the
-    # type column of the polymorphic association. To continue with the asset example above, suppose there are guest posts
-    # and member posts that use the posts table for STI. In this case, there must be a +type+ column in the posts table.
-    #
-    #   class Asset < ActiveRecord::Base
-    #     belongs_to :attachable, :polymorphic => true
-    #
-    #     def attachable_type=(sType)
-    #        super(sType.to_s.classify.constantize.base_class.to_s)
-    #     end
-    #   end
-    #
-    #   class Post < ActiveRecord::Base
-    #     # because we store "Post" in attachable_type now :dependent => :destroy will work
-    #     has_many :assets, :as => :attachable, :dependent => :destroy
-    #   end
-    #
-    #   class GuestPost < Post
-    #   end
-    #
-    #   class MemberPost < Post
-    #   end
-    #
-    # == Caching
-    #
-    # All of the methods are built on a simple caching principle that will keep the result of the last query around unless specifically
-    # instructed not to. The cache is even shared across methods to make it even cheaper to use the macro-added methods without
-    # worrying too much about performance at the first go. Example:
-    #
-    #   project.milestones             # fetches milestones from the database
-    #   project.milestones.size        # uses the milestone cache
-    #   project.milestones.empty?      # uses the milestone cache
-    #   project.milestones(true).size  # fetches milestones from the database
-    #   project.milestones             # uses the milestone cache
-    #
-    # == Eager loading of associations
-    #
-    # Eager loading is a way to find objects of a certain class and a number of named associations. This is
-    # one of the easiest ways of to prevent the dreaded 1+N problem in which fetching 100 posts that each need to display their author
-    # triggers 101 database queries. Through the use of eager loading, the 101 queries can be reduced to 2. Example:
-    #
-    #   class Post < ActiveRecord::Base
-    #     belongs_to :author
-    #     has_many   :comments
-    #   end
-    #
-    # Consider the following loop using the class above:
-    #
-    #   for post in Post.all
-    #     puts "Post:            " + post.title
-    #     puts "Written by:      " + post.author.name
-    #     puts "Last comment on: " + post.comments.first.created_on
-    #   end
-    #
-    # To iterate over these one hundred posts, we'll generate 201 database queries. Let's first just optimize it for retrieving the author:
-    #
-    #   for post in Post.find(:all, :include => :author)
-    #
-    # This references the name of the +belongs_to+ association that also used the <tt>:author</tt> symbol. After loading the posts, find
-    # will collect the +author_id+ from each one and load all the referenced authors with one query. Doing so will cut down the number of queries from 201 to 102.
-    #
-    # We can improve upon the situation further by referencing both associations in the finder with:
-    #
-    #   for post in Post.find(:all, :include => [ :author, :comments ])
-    #
-    # This will load all comments with a single query. This reduces the total number of queries to 3. More generally the number of queries
-    # will be 1 plus the number of associations named (except if some of the associations are polymorphic +belongs_to+ - see below).
-    #
-    # To include a deep hierarchy of associations, use a hash:
-    #
-    #   for post in Post.find(:all, :include => [ :author, { :comments => { :author => :gravatar } } ])
-    #
-    # That'll grab not only all the comments but all their authors and gravatar pictures.  You can mix and match
-    # symbols, arrays and hashes in any combination to describe the associations you want to load.
-    #
-    # All of this power shouldn't fool you into thinking that you can pull out huge amounts of data with no performance penalty just because you've reduced
-    # the number of queries. The database still needs to send all the data to Active Record and it still needs to be processed. So it's no
-    # catch-all for performance problems, but it's a great way to cut down on the number of queries in a situation as the one described above.
-    #
-    # Since only one table is loaded at a time, conditions or orders cannot reference tables other than the main one. If this is the case
-    # Active Record falls back to the previously used LEFT OUTER JOIN based strategy. For example
-    #  
-    #   Post.find(:all, :include => [ :author, :comments ], :conditions => ['comments.approved = ?', true])
-    #
-    # will result in a single SQL query with joins along the lines of: <tt>LEFT OUTER JOIN comments ON comments.post_id = posts.id</tt> and
-    # <tt>LEFT OUTER JOIN authors ON authors.id = posts.author_id</tt>. Note that using conditions like this can have unintended consequences.
-    # In the above example posts with no approved comments are not returned at all, because the conditions apply to the SQL statement as a whole
-    # and not just to the association. You must disambiguate column references for this fallback to happen, for example
-    # <tt>:order => "author.name DESC"</tt> will work but <tt>:order => "name DESC"</tt> will not. 
-    #
-    # If you do want eagerload only some members of an association it is usually more natural to <tt>:include</tt> an association
-    # which has conditions defined on it:
-    #
-    #   class Post < ActiveRecord::Base
-    #     has_many :approved_comments, :class_name => 'Comment', :conditions => ['approved = ?', true]
-    #   end
-    #
-    #   Post.find(:all, :include => :approved_comments)
-    #
-    # will load posts and eager load the +approved_comments+ association, which contains only those comments that have been approved.
-    #
-    # If you eager load an association with a specified <tt>:limit</tt> option, it will be ignored, returning all the associated objects:
-    #
-    #   class Picture < ActiveRecord::Base
-    #     has_many :most_recent_comments, :class_name => 'Comment', :order => 'id DESC', :limit => 10
-    #   end
-    #
-    #   Picture.find(:first, :include => :most_recent_comments).most_recent_comments # => returns all associated comments.
-    #
-    # When eager loaded, conditions are interpolated in the context of the model class, not the model instance.  Conditions are lazily interpolated
-    # before the actual model exists.
-    #
-    # Eager loading is supported with polymorphic associations.
-    #
-    #   class Address < ActiveRecord::Base
-    #     belongs_to :addressable, :polymorphic => true
-    #   end
-    #
-    # A call that tries to eager load the addressable model
-    #
-    #   Address.find(:all, :include => :addressable)
-    #
-    # will execute one query to load the addresses and load the addressables with one query per addressable type. 
-    # For example if all the addressables are either of class Person or Company then a total of 3 queries will be executed. The list of
-    # addressable types to load is determined on the back of the addresses loaded. This is not supported if Active Record has to fallback
-    # to the previous implementation of eager loading and will raise ActiveRecord::EagerLoadPolymorphicError. The reason is that the parent 
-    # model's type is a column value so its corresponding table name cannot be put in the +FROM+/+JOIN+ clauses of that query.
-    #
-    # == Table Aliasing
-    #
-    # Active Record uses table aliasing in the case that a table is referenced multiple times in a join.  If a table is referenced only once,
-    # the standard table name is used.  The second time, the table is aliased as <tt>#{reflection_name}_#{parent_table_name}</tt>.  Indexes are appended
-    # for any more successive uses of the table name.
-    #
-    #   Post.find :all, :joins => :comments
-    #   # => SELECT ... FROM posts INNER JOIN comments ON ...
-    #   Post.find :all, :joins => :special_comments # STI
-    #   # => SELECT ... FROM posts INNER JOIN comments ON ... AND comments.type = 'SpecialComment'
-    #   Post.find :all, :joins => [:comments, :special_comments] # special_comments is the reflection name, posts is the parent table name
-    #   # => SELECT ... FROM posts INNER JOIN comments ON ... INNER JOIN comments special_comments_posts
-    #
-    # Acts as tree example:
-    #
-    #   TreeMixin.find :all, :joins => :children
-    #   # => SELECT ... FROM mixins INNER JOIN mixins childrens_mixins ...
-    #   TreeMixin.find :all, :joins => {:children => :parent}
-    #   # => SELECT ... FROM mixins INNER JOIN mixins childrens_mixins ...
-    #                               INNER JOIN parents_mixins ...
-    #   TreeMixin.find :all, :joins => {:children => {:parent => :children}}
-    #   # => SELECT ... FROM mixins INNER JOIN mixins childrens_mixins ...
-    #                               INNER JOIN parents_mixins ...
-    #                               INNER JOIN mixins childrens_mixins_2
-    #
-    # Has and Belongs to Many join tables use the same idea, but add a <tt>_join</tt> suffix:
-    #
-    #   Post.find :all, :joins => :categories
-    #   # => SELECT ... FROM posts INNER JOIN categories_posts ... INNER JOIN categories ...
-    #   Post.find :all, :joins => {:categories => :posts}
-    #   # => SELECT ... FROM posts INNER JOIN categories_posts ... INNER JOIN categories ...
-    #                              INNER JOIN categories_posts posts_categories_join INNER JOIN posts posts_categories
-    #   Post.find :all, :joins => {:categories => {:posts => :categories}}
-    #   # => SELECT ... FROM posts INNER JOIN categories_posts ... INNER JOIN categories ...
-    #                              INNER JOIN categories_posts posts_categories_join INNER JOIN posts posts_categories
-    #                              INNER JOIN categories_posts categories_posts_join INNER JOIN categories categories_posts_2
-    #
-    # If you wish to specify your own custom joins using a <tt>:joins</tt> option, those table names will take precedence over the eager associations:
-    #
-    #   Post.find :all, :joins => :comments, :joins => "inner join comments ..."
-    #   # => SELECT ... FROM posts INNER JOIN comments_posts ON ... INNER JOIN comments ...
-    #   Post.find :all, :joins => [:comments, :special_comments], :joins => "inner join comments ..."
-    #   # => SELECT ... FROM posts INNER JOIN comments comments_posts ON ...
-    #                              INNER JOIN comments special_comments_posts ...
-    #                              INNER JOIN comments ...
-    #
-    # Table aliases are automatically truncated according to the maximum length of table identifiers according to the specific database.
-    #
-    # == Modules
-    #
-    # By default, associations will look for objects within the current module scope. Consider:
-    #
-    #   module MyApplication
-    #     module Business
-    #       class Firm < ActiveRecord::Base
-    #          has_many :clients
-    #        end
-    #
-    #       class Client < ActiveRecord::Base; end
-    #     end
-    #   end
-    #
-    # When <tt>Firm#clients</tt> is called, it will in turn call <tt>MyApplication::Business::Client.find_all_by_firm_id(firm.id)</tt>.
-    # If you want to associate with a class in another module scope, this can be done by specifying the complete class name.
-    # Example:
-    #
-    #   module MyApplication
-    #     module Business
-    #       class Firm < ActiveRecord::Base; end
-    #     end
-    #
-    #     module Billing
-    #       class Account < ActiveRecord::Base
-    #         belongs_to :firm, :class_name => "MyApplication::Business::Firm"
-    #       end
-    #     end
-    #   end
-    #
-    # == Type safety with <tt>ActiveRecord::AssociationTypeMismatch</tt>
-    #
-    # If you attempt to assign an object to an association that doesn't match the inferred or specified <tt>:class_name</tt>, you'll
-    # get an <tt>ActiveRecord::AssociationTypeMismatch</tt>.
-    #
-    # == Options
-    #
-    # All of the association macros can be specialized through options. This makes cases more complex than the simple and guessable ones
-    # possible.
-    module ClassMethods
-      # Specifies a one-to-many association. The following methods for retrieval and query of
-      # collections of associated objects will be added:
-      #
-      # [collection(force_reload = false)]
-      #   Returns an array of all the associated objects.
-      #   An empty array is returned if none are found.
-      # [collection<<(object, ...)]
-      #   Adds one or more objects to the collection by setting their foreign keys to the collection's primary key.
-      # [collection.delete(object, ...)]
-      #   Removes one or more objects from the collection by setting their foreign keys to +NULL+.
-      #   Objects will be in addition destroyed if they're associated with <tt>:dependent => :destroy</tt>,
-      #   and deleted if they're associated with <tt>:dependent => :delete_all</tt>.
-      # [collection=objects]
-      #   Replaces the collections content by deleting and adding objects as appropriate.
-      # [collection_singular_ids]
-      #   Returns an array of the associated objects' ids
-      # [collection_singular_ids=ids]
-      #   Replace the collection with the objects identified by the primary keys in +ids+
-      # [collection.clear]
-      #   Removes every object from the collection. This destroys the associated objects if they
-      #   are associated with <tt>:dependent => :destroy</tt>, deletes them directly from the
-      #   database if <tt>:dependent => :delete_all</tt>, otherwise sets their foreign keys to +NULL+.
-      # [collection.empty?]
-      #   Returns +true+ if there are no associated objects.
-      # [collection.size]
-      #   Returns the number of associated objects.
-      # [collection.find(...)]
-      #   Finds an associated object according to the same rules as ActiveRecord::Base.find.
-      # [collection.exists?(...)]
-      #   Checks whether an associated object with the given conditions exists.
-      #   Uses the same rules as ActiveRecord::Base.exists?.
-      # [collection.build(attributes = {}, ...)]
-      #   Returns one or more new objects of the collection type that have been instantiated
-      #   with +attributes+ and linked to this object through a foreign key, but have not yet
-      #   been saved. <b>Note:</b> This only works if an associated object already exists, not if
-      #   it's +nil+!
-      # [collection.create(attributes = {})]
-      #   Returns a new object of the collection type that has been instantiated
-      #   with +attributes+, linked to this object through a foreign key, and that has already
-      #   been saved (if it passed the validation). <b>Note:</b> This only works if an associated
-      #   object already exists, not if it's +nil+!
-      #
-      # (*Note*: +collection+ is replaced with the symbol passed as the first argument, so
-      # <tt>has_many :clients</tt> would add among others <tt>clients.empty?</tt>.)
-      #
-      # === Example
-      #
-      # Example: A Firm class declares <tt>has_many :clients</tt>, which will add:
-      # * <tt>Firm#clients</tt> (similar to <tt>Clients.find :all, :conditions => ["firm_id = ?", id]</tt>)
-      # * <tt>Firm#clients<<</tt>
-      # * <tt>Firm#clients.delete</tt>
-      # * <tt>Firm#clients=</tt>
-      # * <tt>Firm#client_ids</tt>
-      # * <tt>Firm#client_ids=</tt>
-      # * <tt>Firm#clients.clear</tt>
-      # * <tt>Firm#clients.empty?</tt> (similar to <tt>firm.clients.size == 0</tt>)
-      # * <tt>Firm#clients.size</tt> (similar to <tt>Client.count "firm_id = #{id}"</tt>)
-      # * <tt>Firm#clients.find</tt> (similar to <tt>Client.find(id, :conditions => "firm_id = #{id}")</tt>)
-      # * <tt>Firm#clients.exists?(:name => 'ACME')</tt> (similar to <tt>Client.exists?(:name => 'ACME', :firm_id => firm.id)</tt>)
-      # * <tt>Firm#clients.build</tt> (similar to <tt>Client.new("firm_id" => id)</tt>)
-      # * <tt>Firm#clients.create</tt> (similar to <tt>c = Client.new("firm_id" => id); c.save; c</tt>)
-      # The declaration can also include an options hash to specialize the behavior of the association.
-      #
-      # === Supported options
-      # [:class_name]
-      #   Specify the class name of the association. Use it only if that name can't be inferred
-      #   from the association name. So <tt>has_many :products</tt> will by default be linked to the Product class, but
-      #   if the real class name is SpecialProduct, you'll have to specify it with this option.
-      # [:conditions]
-      #   Specify the conditions that the associated objects must meet in order to be included as a +WHERE+
-      #   SQL fragment, such as <tt>price > 5 AND name LIKE 'B%'</tt>.  Record creations from the association are scoped if a hash
-      #   is used.  <tt>has_many :posts, :conditions => {:published => true}</tt> will create published posts with <tt>@blog.posts.create</tt>
-      #   or <tt>@blog.posts.build</tt>.
-      # [:order]
-      #   Specify the order in which the associated objects are returned as an <tt>ORDER BY</tt> SQL fragment,
-      #   such as <tt>last_name, first_name DESC</tt>.
-      # [:foreign_key]
-      #   Specify the foreign key used for the association. By default this is guessed to be the name
-      #   of this class in lower-case and "_id" suffixed. So a Person class that makes a +has_many+ association will use "person_id"
-      #   as the default <tt>:foreign_key</tt>.
-      # [:primary_key]
-      #   Specify the method that returns the primary key used for the association. By default this is +id+.
-      # [:dependent]
-      #   If set to <tt>:destroy</tt> all the associated objects are destroyed
-      #   alongside this object by calling their +destroy+ method.  If set to <tt>:delete_all</tt> all associated
-      #   objects are deleted *without* calling their +destroy+ method.  If set to <tt>:nullify</tt> all associated
-      #   objects' foreign keys are set to +NULL+ *without* calling their +save+ callbacks. *Warning:* This option is ignored when also using
-      #   the <tt>:through</tt> option.
-      # [:finder_sql]
-      #   Specify a complete SQL statement to fetch the association. This is a good way to go for complex
-      #   associations that depend on multiple tables. Note: When this option is used, +find_in_collection+ is _not_ added.
-      # [:counter_sql]
-      #   Specify a complete SQL statement to fetch the size of the association. If <tt>:finder_sql</tt> is
-      #   specified but not <tt>:counter_sql</tt>, <tt>:counter_sql</tt> will be generated by replacing <tt>SELECT ... FROM</tt> with <tt>SELECT COUNT(*) FROM</tt>.
-      # [:extend]
-      #   Specify a named module for extending the proxy. See "Association extensions".
-      # [:include]
-      #   Specify second-order associations that should be eager loaded when the collection is loaded.
-      # [:group]
-      #   An attribute name by which the result should be grouped. Uses the <tt>GROUP BY</tt> SQL-clause.
-      # [:having]
-      #   Combined with +:group+ this can be used to filter the records that a <tt>GROUP BY</tt> returns. Uses the <tt>HAVING</tt> SQL-clause.
-      # [:limit]
-      #   An integer determining the limit on the number of rows that should be returned.
-      # [:offset]
-      #   An integer determining the offset from where the rows should be fetched. So at 5, it would skip the first 4 rows.
-      # [:select]
-      #   By default, this is <tt>*</tt> as in <tt>SELECT * FROM</tt>, but can be changed if you, for example, want to do a join
-      #   but not include the joined columns. Do not forget to include the primary and foreign keys, otherwise it will raise an error.
-      # [:as]
-      #   Specifies a polymorphic interface (See <tt>belongs_to</tt>).
-      # [:through]
-      #   Specifies a Join Model through which to perform the query.  Options for <tt>:class_name</tt> and <tt>:foreign_key</tt>
-      #   are ignored, as the association uses the source reflection. You can only use a <tt>:through</tt> query through a <tt>belongs_to</tt>
-      #   <tt>has_one</tt> or <tt>has_many</tt> association on the join model.
-      # [:source]
-      #   Specifies the source association name used by <tt>has_many :through</tt> queries.  Only use it if the name cannot be
-      #   inferred from the association.  <tt>has_many :subscribers, :through => :subscriptions</tt> will look for either <tt>:subscribers</tt> or
-      #   <tt>:subscriber</tt> on Subscription, unless a <tt>:source</tt> is given.
-      # [:source_type]
-      #   Specifies type of the source association used by <tt>has_many :through</tt> queries where the source
-      #   association is a polymorphic +belongs_to+.
-      # [:uniq]
-      #   If true, duplicates will be omitted from the collection. Useful in conjunction with <tt>:through</tt>.
-      # [:readonly]
-      #   If true, all the associated objects are readonly through the association.
-      # [:validate]
-      #   If false, don't validate the associated objects when saving the parent object. true by default.
-      # [:autosave]
-      #   If true, always save any loaded members and destroy members marked for destruction, when saving the parent object. Off by default.
-      #
-      # Option examples:
-      #   has_many :comments, :order => "posted_on"
-      #   has_many :comments, :include => :author
-      #   has_many :people, :class_name => "Person", :conditions => "deleted = 0", :order => "name"
-      #   has_many :tracks, :order => "position", :dependent => :destroy
-      #   has_many :comments, :dependent => :nullify
-      #   has_many :tags, :as => :taggable
-      #   has_many :reports, :readonly => true
-      #   has_many :subscribers, :through => :subscriptions, :source => :user
-      #   has_many :subscribers, :class_name => "Person", :finder_sql =>
-      #       'SELECT DISTINCT people.* ' +
-      #       'FROM people p, post_subscriptions ps ' +
-      #       'WHERE ps.post_id = #{id} AND ps.person_id = p.id ' +
-      #       'ORDER BY p.first_name'
-      def has_many(association_id, options = {}, &extension)
-        reflection = create_has_many_reflection(association_id, options, &extension)
-        configure_dependency_for_has_many(reflection)
-        add_association_callbacks(reflection.name, reflection.options)
-
-        if options[:through]
-          collection_accessor_methods(reflection, HasManyThroughAssociation)
-        else
-          collection_accessor_methods(reflection, HasManyAssociation)
-        end
-      end
-
-      # Specifies a one-to-one association with another class. This method should only be used
-      # if the other class contains the foreign key. If the current class contains the foreign key,
-      # then you should use +belongs_to+ instead. See also ActiveRecord::Associations::ClassMethods's overview
-      # on when to use has_one and when to use belongs_to.
-      #
-      # The following methods for retrieval and query of a single associated object will be added:
-      #
-      # [association(force_reload = false)]
-      #   Returns the associated object. +nil+ is returned if none is found.
-      # [association=(associate)]
-      #   Assigns the associate object, extracts the primary key, sets it as the foreign key,
-      #   and saves the associate object.
-      # [build_association(attributes = {})]
-      #   Returns a new object of the associated type that has been instantiated
-      #   with +attributes+ and linked to this object through a foreign key, but has not
-      #   yet been saved. <b>Note:</b> This ONLY works if an association already exists.
-      #   It will NOT work if the association is +nil+.
-      # [create_association(attributes = {})]
-      #   Returns a new object of the associated type that has been instantiated
-      #   with +attributes+, linked to this object through a foreign key, and that
-      #   has already been saved (if it passed the validation).
-      #
-      # (+association+ is replaced with the symbol passed as the first argument, so
-      # <tt>has_one :manager</tt> would add among others <tt>manager.nil?</tt>.)
-      #
-      # === Example
-      #
-      # An Account class declares <tt>has_one :beneficiary</tt>, which will add:
-      # * <tt>Account#beneficiary</tt> (similar to <tt>Beneficiary.find(:first, :conditions => "account_id = #{id}")</tt>)
-      # * <tt>Account#beneficiary=(beneficiary)</tt> (similar to <tt>beneficiary.account_id = account.id; beneficiary.save</tt>)
-      # * <tt>Account#build_beneficiary</tt> (similar to <tt>Beneficiary.new("account_id" => id)</tt>)
-      # * <tt>Account#create_beneficiary</tt> (similar to <tt>b = Beneficiary.new("account_id" => id); b.save; b</tt>)
-      #
-      # === Options
-      #
-      # The declaration can also include an options hash to specialize the behavior of the association.
-      #
-      # Options are:
-      # [:class_name]
-      #   Specify the class name of the association. Use it only if that name can't be inferred
-      #   from the association name. So <tt>has_one :manager</tt> will by default be linked to the Manager class, but
-      #   if the real class name is Person, you'll have to specify it with this option.
-      # [:conditions]
-      #   Specify the conditions that the associated object must meet in order to be included as a +WHERE+
-      #   SQL fragment, such as <tt>rank = 5</tt>. Record creation from the association is scoped if a hash
-      #   is used. <tt>has_one :account, :conditions => {:enabled => true}</tt> will create an enabled account with <tt>@company.create_account</tt>
-      #   or <tt>@company.build_account</tt>.
-      # [:order]
-      #   Specify the order in which the associated objects are returned as an <tt>ORDER BY</tt> SQL fragment,
-      #   such as <tt>last_name, first_name DESC</tt>.
-      # [:dependent]
-      #   If set to <tt>:destroy</tt>, the associated object is destroyed when this object is. If set to
-      #   <tt>:delete</tt>, the associated object is deleted *without* calling its destroy method. If set to <tt>:nullify</tt>, the associated
-      #   object's foreign key is set to +NULL+. Also, association is assigned.
-      # [:foreign_key]
-      #   Specify the foreign key used for the association. By default this is guessed to be the name
-      #   of this class in lower-case and "_id" suffixed. So a Person class that makes a +has_one+ association will use "person_id"
-      #   as the default <tt>:foreign_key</tt>.
-      # [:primary_key]
-      #   Specify the method that returns the primary key used for the association. By default this is +id+.
-      # [:include]
-      #   Specify second-order associations that should be eager loaded when this object is loaded.
-      # [:as]
-      #   Specifies a polymorphic interface (See <tt>belongs_to</tt>).
-      # [:select]
-      #   By default, this is <tt>*</tt> as in <tt>SELECT * FROM</tt>, but can be changed if, for example, you want to do a join
-      #   but not include the joined columns. Do not forget to include the primary and foreign keys, otherwise it will raise an error.
-      # [:through]
-      #   Specifies a Join Model through which to perform the query.  Options for <tt>:class_name</tt> and <tt>:foreign_key</tt>
-      #   are ignored, as the association uses the source reflection. You can only use a <tt>:through</tt> query through a 
-      #   <tt>has_one</tt> or <tt>belongs_to</tt> association on the join model.
-      # [:source]
-      #   Specifies the source association name used by <tt>has_one :through</tt> queries.  Only use it if the name cannot be
-      #   inferred from the association.  <tt>has_one :favorite, :through => :favorites</tt> will look for a
-      #   <tt>:favorite</tt> on Favorite, unless a <tt>:source</tt> is given.
-      # [:source_type]
-      #   Specifies type of the source association used by <tt>has_one :through</tt> queries where the source
-      #   association is a polymorphic +belongs_to+.
-      # [:readonly]
-      #   If true, the associated object is readonly through the association.
-      # [:validate]
-      #   If false, don't validate the associated object when saving the parent object. +false+ by default.
-      # [:autosave]
-      #   If true, always save the associated object or destroy it if marked for destruction, when saving the parent object. Off by default.
-      #
-      # Option examples:
-      #   has_one :credit_card, :dependent => :destroy  # destroys the associated credit card
-      #   has_one :credit_card, :dependent => :nullify  # updates the associated records foreign key value to NULL rather than destroying it
-      #   has_one :last_comment, :class_name => "Comment", :order => "posted_on"
-      #   has_one :project_manager, :class_name => "Person", :conditions => "role = 'project_manager'"
-      #   has_one :attachment, :as => :attachable
-      #   has_one :boss, :readonly => :true
-      #   has_one :club, :through => :membership
-      #   has_one :primary_address, :through => :addressables, :conditions => ["addressable.primary = ?", true], :source => :addressable
-      def has_one(association_id, options = {})
-        if options[:through]
-          reflection = create_has_one_through_reflection(association_id, options)
-          association_accessor_methods(reflection, ActiveRecord::Associations::HasOneThroughAssociation)
-        else
-          reflection = create_has_one_reflection(association_id, options)
-          association_accessor_methods(reflection, HasOneAssociation)
-          association_constructor_method(:build,  reflection, HasOneAssociation)
-          association_constructor_method(:create, reflection, HasOneAssociation)
-          configure_dependency_for_has_one(reflection)
-        end
-      end
-
-      # Specifies a one-to-one association with another class. This method should only be used
-      # if this class contains the foreign key. If the other class contains the foreign key,
-      # then you should use +has_one+ instead. See also ActiveRecord::Associations::ClassMethods's overview
-      # on when to use +has_one+ and when to use +belongs_to+.
-      #
-      # Methods will be added for retrieval and query for a single associated object, for which
-      # this object holds an id:
-      #
-      # [association(force_reload = false)]
-      #   Returns the associated object. +nil+ is returned if none is found.
-      # [association=(associate)]
-      #   Assigns the associate object, extracts the primary key, and sets it as the foreign key.
-      # [build_association(attributes = {})]
-      #   Returns a new object of the associated type that has been instantiated
-      #   with +attributes+ and linked to this object through a foreign key, but has not yet been saved.
-      # [create_association(attributes = {})]
-      #   Returns a new object of the associated type that has been instantiated
-      #   with +attributes+, linked to this object through a foreign key, and that
-      #   has already been saved (if it passed the validation).
-      #
-      # (+association+ is replaced with the symbol passed as the first argument, so
-      # <tt>belongs_to :author</tt> would add among others <tt>author.nil?</tt>.)
-      #
-      # === Example
-      #
-      # A Post class declares <tt>belongs_to :author</tt>, which will add:
-      # * <tt>Post#author</tt> (similar to <tt>Author.find(author_id)</tt>)
-      # * <tt>Post#author=(author)</tt> (similar to <tt>post.author_id = author.id</tt>)
-      # * <tt>Post#author?</tt> (similar to <tt>post.author == some_author</tt>)
-      # * <tt>Post#build_author</tt> (similar to <tt>post.author = Author.new</tt>)
-      # * <tt>Post#create_author</tt> (similar to <tt>post.author = Author.new; post.author.save; post.author</tt>)
-      # The declaration can also include an options hash to specialize the behavior of the association.
-      #
-      # === Options
-      #
-      # [:class_name]
-      #   Specify the class name of the association. Use it only if that name can't be inferred
-      #   from the association name. So <tt>has_one :author</tt> will by default be linked to the Author class, but
-      #   if the real class name is Person, you'll have to specify it with this option.
-      # [:conditions]
-      #   Specify the conditions that the associated object must meet in order to be included as a +WHERE+
-      #   SQL fragment, such as <tt>authorized = 1</tt>.
-      # [:select]
-      #   By default, this is <tt>*</tt> as in <tt>SELECT * FROM</tt>, but can be changed if, for example, you want to do a join
-      #   but not include the joined columns. Do not forget to include the primary and foreign keys, otherwise it will raise an error.
-      # [:foreign_key]
-      #   Specify the foreign key used for the association. By default this is guessed to be the name
-      #   of the association with an "_id" suffix. So a class that defines a <tt>belongs_to :person</tt> association will use
-      #   "person_id" as the default <tt>:foreign_key</tt>. Similarly, <tt>belongs_to :favorite_person, :class_name => "Person"</tt>
-      #   will use a foreign key of "favorite_person_id".
-      # [:primary_key]
-      #   Specify the method that returns the primary key of associated object used for the association. By default this is id.
-      # [:dependent]
-      #   If set to <tt>:destroy</tt>, the associated object is destroyed when this object is. If set to
-      #   <tt>:delete</tt>, the associated object is deleted *without* calling its destroy method. This option should not be specified when
-      #   <tt>belongs_to</tt> is used in conjunction with a <tt>has_many</tt> relationship on another class because of the potential to leave
-      #   orphaned records behind.
-      # [:counter_cache]
-      #   Caches the number of belonging objects on the associate class through the use of +increment_counter+
-      #   and +decrement_counter+. The counter cache is incremented when an object of this class is created and decremented when it's
-      #   destroyed. This requires that a column named <tt>#{table_name}_count</tt> (such as +comments_count+ for a belonging Comment class)
-      #   is used on the associate class (such as a Post class). You can also specify a custom counter cache column by providing
-      #   a column name instead of a +true+/+false+ value to this option (e.g., <tt>:counter_cache => :my_custom_counter</tt>.)
-      #   Note: Specifying a counter cache will add it to that model's list of readonly attributes using +attr_readonly+.
-      # [:include]
-      #   Specify second-order associations that should be eager loaded when this object is loaded.
-      # [:polymorphic]
-      #   Specify this association is a polymorphic association by passing +true+.
-      #   Note: If you've enabled the counter cache, then you may want to add the counter cache attribute
-      #   to the +attr_readonly+ list in the associated classes (e.g. <tt>class Post; attr_readonly :comments_count; end</tt>).
-      # [:readonly]
-      #   If true, the associated object is readonly through the association.
-      # [:validate]
-      #   If false, don't validate the associated objects when saving the parent object. +false+ by default.
-      # [:autosave]
-      #   If true, always save the associated object or destroy it if marked for destruction, when saving the parent object. Off by default.
-      # [:touch]
-      #   If true, the associated object will be touched (the updated_at/on attributes set to now) when this record is either saved or
-      #   destroyed. If you specify a symbol, that attribute will be updated with the current time instead of the updated_at/on attribute.
-      #
-      # Option examples:
-      #   belongs_to :firm, :foreign_key => "client_of"
-      #   belongs_to :person, :primary_key => "name", :foreign_key => "person_name"
-      #   belongs_to :author, :class_name => "Person", :foreign_key => "author_id"
-      #   belongs_to :valid_coupon, :class_name => "Coupon", :foreign_key => "coupon_id",
-      #              :conditions => 'discounts > #{payments_count}'
-      #   belongs_to :attachable, :polymorphic => true
-      #   belongs_to :project, :readonly => true
-      #   belongs_to :post, :counter_cache => true
-      #   belongs_to :company, :touch => true
-      #   belongs_to :company, :touch => :employees_last_updated_at
-      def belongs_to(association_id, options = {})
-        reflection = create_belongs_to_reflection(association_id, options)
-
-        if reflection.options[:polymorphic]
-          association_accessor_methods(reflection, BelongsToPolymorphicAssociation)
-        else
-          association_accessor_methods(reflection, BelongsToAssociation)
-          association_constructor_method(:build,  reflection, BelongsToAssociation)
-          association_constructor_method(:create, reflection, BelongsToAssociation)
-        end
-
-        add_counter_cache_callbacks(reflection)          if options[:counter_cache]
-        add_touch_callbacks(reflection, options[:touch]) if options[:touch]
-
-        configure_dependency_for_belongs_to(reflection)
-      end
-
-      # Specifies a many-to-many relationship with another class. This associates two classes via an
-      # intermediate join table.  Unless the join table is explicitly specified as an option, it is
-      # guessed using the lexical order of the class names. So a join between Developer and Project
-      # will give the default join table name of "developers_projects" because "D" outranks "P".  Note that this precedence
-      # is calculated using the <tt><</tt> operator for String.  This means that if the strings are of different lengths,
-      # and the strings are equal when compared up to the shortest length, then the longer string is considered of higher
-      # lexical precedence than the shorter one.  For example, one would expect the tables "paper_boxes" and "papers"
-      # to generate a join table name of "papers_paper_boxes" because of the length of the name "paper_boxes",
-      # but it in fact generates a join table name of "paper_boxes_papers".  Be aware of this caveat, and use the
-      # custom <tt>:join_table</tt> option if you need to.
-      #
-      # The join table should not have a primary key or a model associated with it. You must manually generate the
-      # join table with a migration such as this:
-      #
-      #   class CreateDevelopersProjectsJoinTable < ActiveRecord::Migration
-      #     def self.up
-      #       create_table :developers_projects, :id => false do |t|
-      #         t.integer :developer_id
-      #         t.integer :project_id
-      #       end
-      #     end
-      #
-      #     def self.down
-      #       drop_table :developers_projects
-      #     end
-      #   end
-      #
-      # Deprecated: Any additional fields added to the join table will be placed as attributes when pulling records out through
-      # +has_and_belongs_to_many+ associations. Records returned from join tables with additional attributes will be marked as
-      # readonly (because we can't save changes to the additional attributes). It's strongly recommended that you upgrade any
-      # associations with attributes to a real join model (see introduction).
-      #
-      # Adds the following methods for retrieval and query:
-      #
-      # [collection(force_reload = false)]
-      #   Returns an array of all the associated objects.
-      #   An empty array is returned if none are found.
-      # [collection<<(object, ...)]
-      #   Adds one or more objects to the collection by creating associations in the join table
-      #   (<tt>collection.push</tt> and <tt>collection.concat</tt> are aliases to this method).
-      # [collection.delete(object, ...)]
-      #   Removes one or more objects from the collection by removing their associations from the join table.
-      #   This does not destroy the objects.
-      # [collection=objects]
-      #   Replaces the collection's content by deleting and adding objects as appropriate.
-      # [collection_singular_ids]
-      #   Returns an array of the associated objects' ids.
-      # [collection_singular_ids=ids]
-      #   Replace the collection by the objects identified by the primary keys in +ids+.
-      # [collection.clear]
-      #   Removes every object from the collection. This does not destroy the objects.
-      # [collection.empty?]
-      #   Returns +true+ if there are no associated objects.
-      # [collection.size]
-      #   Returns the number of associated objects.
-      # [collection.find(id)]
-      #   Finds an associated object responding to the +id+ and that
-      #   meets the condition that it has to be associated with this object.
-      #   Uses the same rules as ActiveRecord::Base.find.
-      # [collection.exists?(...)]
-      #   Checks whether an associated object with the given conditions exists.
-      #   Uses the same rules as ActiveRecord::Base.exists?.
-      # [collection.build(attributes = {})]
-      #   Returns a new object of the collection type that has been instantiated
-      #   with +attributes+ and linked to this object through the join table, but has not yet been saved.
-      # [collection.create(attributes = {})]
-      #   Returns a new object of the collection type that has been instantiated
-      #   with +attributes+, linked to this object through the join table, and that has already been saved (if it passed the validation).
-      #
-      # (+collection+ is replaced with the symbol passed as the first argument, so
-      # <tt>has_and_belongs_to_many :categories</tt> would add among others <tt>categories.empty?</tt>.)
-      #
-      # === Example
-      #
-      # A Developer class declares <tt>has_and_belongs_to_many :projects</tt>, which will add:
-      # * <tt>Developer#projects</tt>
-      # * <tt>Developer#projects<<</tt>
-      # * <tt>Developer#projects.delete</tt>
-      # * <tt>Developer#projects=</tt>
-      # * <tt>Developer#project_ids</tt>
-      # * <tt>Developer#project_ids=</tt>
-      # * <tt>Developer#projects.clear</tt>
-      # * <tt>Developer#projects.empty?</tt>
-      # * <tt>Developer#projects.size</tt>
-      # * <tt>Developer#projects.find(id)</tt>
-      # * <tt>Developer#clients.exists?(...)</tt>
-      # * <tt>Developer#projects.build</tt> (similar to <tt>Project.new("project_id" => id)</tt>)
-      # * <tt>Developer#projects.create</tt> (similar to <tt>c = Project.new("project_id" => id); c.save; c</tt>)
-      # The declaration may include an options hash to specialize the behavior of the association.
-      #
-      # === Options
-      #
-      # [:class_name]
-      #   Specify the class name of the association. Use it only if that name can't be inferred
-      #   from the association name. So <tt>has_and_belongs_to_many :projects</tt> will by default be linked to the
-      #   Project class, but if the real class name is SuperProject, you'll have to specify it with this option.
-      # [:join_table]
-      #   Specify the name of the join table if the default based on lexical order isn't what you want.
-      #   <b>WARNING:</b> If you're overwriting the table name of either class, the +table_name+ method
-      #   MUST be declared underneath any +has_and_belongs_to_many+ declaration in order to work.
-      # [:foreign_key]
-      #   Specify the foreign key used for the association. By default this is guessed to be the name
-      #   of this class in lower-case and "_id" suffixed. So a Person class that makes a +has_and_belongs_to_many+ association
-      #   to Project will use "person_id" as the default <tt>:foreign_key</tt>.
-      # [:association_foreign_key]
-      #   Specify the foreign key used for the association on the receiving side of the association.
-      #   By default this is guessed to be the name of the associated class in lower-case and "_id" suffixed.
-      #   So if a Person class makes a +has_and_belongs_to_many+ association to Project,
-      #   the association will use "project_id" as the default <tt>:association_foreign_key</tt>.
-      # [:conditions]
-      #   Specify the conditions that the associated object must meet in order to be included as a +WHERE+
-      #   SQL fragment, such as <tt>authorized = 1</tt>.  Record creations from the association are scoped if a hash is used.  
-      #   <tt>has_many :posts, :conditions => {:published => true}</tt> will create published posts with <tt>@blog.posts.create</tt> 
-      #   or <tt>@blog.posts.build</tt>.
-      # [:order]
-      #   Specify the order in which the associated objects are returned as an <tt>ORDER BY</tt> SQL fragment,
-      #   such as <tt>last_name, first_name DESC</tt>
-      # [:uniq]
-      #   If true, duplicate associated objects will be ignored by accessors and query methods.
-      # [:finder_sql]
-      #   Overwrite the default generated SQL statement used to fetch the association with a manual statement
-      # [:counter_sql]
-      #   Specify a complete SQL statement to fetch the size of the association. If <tt>:finder_sql</tt> is
-      #   specified but not <tt>:counter_sql</tt>, <tt>:counter_sql</tt> will be generated by replacing <tt>SELECT ... FROM</tt> with <tt>SELECT COUNT(*) FROM</tt>.
-      # [:delete_sql]
-      #   Overwrite the default generated SQL statement used to remove links between the associated
-      #   classes with a manual statement.
-      # [:insert_sql]
-      #   Overwrite the default generated SQL statement used to add links between the associated classes
-      #   with a manual statement.
-      # [:extend]
-      #   Anonymous module for extending the proxy, see "Association extensions".
-      # [:include]
-      #   Specify second-order associations that should be eager loaded when the collection is loaded.
-      # [:group]
-      #   An attribute name by which the result should be grouped. Uses the <tt>GROUP BY</tt> SQL-clause.
-      # [:having]
-      #   Combined with +:group+ this can be used to filter the records that a <tt>GROUP BY</tt> returns. Uses the <tt>HAVING</tt> SQL-clause.
-      # [:limit]
-      #   An integer determining the limit on the number of rows that should be returned.
-      # [:offset]
-      #   An integer determining the offset from where the rows should be fetched. So at 5, it would skip the first 4 rows.
-      # [:select]
-      #   By default, this is <tt>*</tt> as in <tt>SELECT * FROM</tt>, but can be changed if, for example, you want to do a join
-      #   but not include the joined columns. Do not forget to include the primary and foreign keys, otherwise it will raise an error.
-      # [:readonly]
-      #   If true, all the associated objects are readonly through the association.
-      # [:validate]
-      #   If false, don't validate the associated objects when saving the parent object. +true+ by default.
-      # [:autosave]
-      #   If true, always save any loaded members and destroy members marked for destruction, when saving the parent object. Off by default.
-      #
-      # Option examples:
-      #   has_and_belongs_to_many :projects
-      #   has_and_belongs_to_many :projects, :include => [ :milestones, :manager ]
-      #   has_and_belongs_to_many :nations, :class_name => "Country"
-      #   has_and_belongs_to_many :categories, :join_table => "prods_cats"
-      #   has_and_belongs_to_many :categories, :readonly => true
-      #   has_and_belongs_to_many :active_projects, :join_table => 'developers_projects', :delete_sql =>
-      #   'DELETE FROM developers_projects WHERE active=1 AND developer_id = #{id} AND project_id = #{record.id}'
-      def has_and_belongs_to_many(association_id, options = {}, &extension)
-        reflection = create_has_and_belongs_to_many_reflection(association_id, options, &extension)
-        collection_accessor_methods(reflection, HasAndBelongsToManyAssociation)
-
-        # Don't use a before_destroy callback since users' before_destroy
-        # callbacks will be executed after the association is wiped out.
-        old_method = "destroy_without_habtm_shim_for_#{reflection.name}"
-        class_eval <<-end_eval unless method_defined?(old_method)
-          alias_method :#{old_method}, :destroy_without_callbacks  # alias_method :destroy_without_habtm_shim_for_posts, :destroy_without_callbacks
-          def destroy_without_callbacks                            # def destroy_without_callbacks
-            #{reflection.name}.clear                               #   posts.clear
-            #{old_method}                                          #   destroy_without_habtm_shim_for_posts
-          end                                                      # end
-        end_eval
-
-        add_association_callbacks(reflection.name, options)
-      end
-
-      private
-        # Generates a join table name from two provided table names.
-        # The names in the join table namesme end up in lexicographic order.
-        #
-        #   join_table_name("members", "clubs")         # => "clubs_members"
-        #   join_table_name("members", "special_clubs") # => "members_special_clubs"
-        def join_table_name(first_table_name, second_table_name)
-          if first_table_name < second_table_name
-            join_table = "#{first_table_name}_#{second_table_name}"
-          else
-            join_table = "#{second_table_name}_#{first_table_name}"
-          end
-
-          table_name_prefix + join_table + table_name_suffix
-        end
-
-        def association_accessor_methods(reflection, association_proxy_class)
-          define_method(reflection.name) do |*params|
-            force_reload = params.first unless params.empty?
-            association = association_instance_get(reflection.name)
-
-            if association.nil? || force_reload
-              association = association_proxy_class.new(self, reflection)
-              retval = association.reload
-              if retval.nil? and association_proxy_class == BelongsToAssociation
-                association_instance_set(reflection.name, nil)
-                return nil
-              end
-              association_instance_set(reflection.name, association)
-            end
-
-            association.target.nil? ? nil : association
-          end
-
-          define_method("loaded_#{reflection.name}?") do
-            association = association_instance_get(reflection.name)
-            association && association.loaded?
-          end
-
-          define_method("#{reflection.name}=") do |new_value|
-            association = association_instance_get(reflection.name)
-
-            if association.nil? || association.target != new_value
-              association = association_proxy_class.new(self, reflection)
-            end
-
-            if association_proxy_class == HasOneThroughAssociation
-              association.create_through_record(new_value)
-              if new_record?
-                association_instance_set(reflection.name, new_value.nil? ? nil : association)
-              else
-                self.send(reflection.name, new_value)
-              end
-            else
-              association.replace(new_value)
-              association_instance_set(reflection.name, new_value.nil? ? nil : association)
-            end
-          end
-
-          define_method("set_#{reflection.name}_target") do |target|
-            return if target.nil? and association_proxy_class == BelongsToAssociation
-            association = association_proxy_class.new(self, reflection)
-            association.target = target
-            association_instance_set(reflection.name, association)
-          end
-        end
-
-        def collection_reader_method(reflection, association_proxy_class)
-          define_method(reflection.name) do |*params|
-            force_reload = params.first unless params.empty?
-            association = association_instance_get(reflection.name)
-
-            unless association
-              association = association_proxy_class.new(self, reflection)
-              association_instance_set(reflection.name, association)
-            end
-
-            association.reload if force_reload
-
-            association
-          end
-
-          define_method("#{reflection.name.to_s.singularize}_ids") do
-            if send(reflection.name).loaded? || reflection.options[:finder_sql]
-              send(reflection.name).map(&:id)
-            else
-              send(reflection.name).all(:select => "#{reflection.quoted_table_name}.#{reflection.klass.primary_key}").map(&:id)
-            end
-          end
-        end
-
-        def collection_accessor_methods(reflection, association_proxy_class, writer = true)
-          collection_reader_method(reflection, association_proxy_class)
-
-          if writer
-            define_method("#{reflection.name}=") do |new_value|
-              # Loads proxy class instance (defined in collection_reader_method) if not already loaded
-              association = send(reflection.name)
-              association.replace(new_value)
-              association
-            end
-
-            define_method("#{reflection.name.to_s.singularize}_ids=") do |new_value|
-              ids = (new_value || []).reject { |nid| nid.blank? }.map(&:to_i)
-              send("#{reflection.name}=", reflection.klass.find(ids).index_by(&:id).values_at(*ids))
-            end
-          end
-        end
-
-        def association_constructor_method(constructor, reflection, association_proxy_class)
-          define_method("#{constructor}_#{reflection.name}") do |*params|
-            attributees      = params.first unless params.empty?
-            replace_existing = params[1].nil? ? true : params[1]
-            association      = association_instance_get(reflection.name)
-
-            unless association
-              association = association_proxy_class.new(self, reflection)
-              association_instance_set(reflection.name, association)
-            end
-
-            if association_proxy_class == HasOneAssociation
-              association.send(constructor, attributees, replace_existing)
-            else
-              association.send(constructor, attributees)
-            end
-          end
-        end
-
-        def add_counter_cache_callbacks(reflection)
-          cache_column = reflection.counter_cache_column
-
-          method_name = "belongs_to_counter_cache_after_create_for_#{reflection.name}".to_sym
-          define_method(method_name) do
-            association = send(reflection.name)
-            association.class.increment_counter(cache_column, association.id) unless association.nil?
-          end
-          after_create(method_name)
-
-          method_name = "belongs_to_counter_cache_before_destroy_for_#{reflection.name}".to_sym
-          define_method(method_name) do
-            association = send(reflection.name)
-            association.class.decrement_counter(cache_column, association.id) unless association.nil?
-          end
-          before_destroy(method_name)
-
-          module_eval(
-            "#{reflection.class_name}.send(:attr_readonly,\"#{cache_column}\".intern) if defined?(#{reflection.class_name}) && #{reflection.class_name}.respond_to?(:attr_readonly)"
-          )
-        end
-        
-        def add_touch_callbacks(reflection, touch_attribute)
-          method_name = "belongs_to_touch_after_save_or_destroy_for_#{reflection.name}".to_sym
-          define_method(method_name) do
-            association = send(reflection.name)
-            
-            if touch_attribute == true
-              association.touch unless association.nil?
-            else
-              association.touch(touch_attribute) unless association.nil?
-            end
-          end
-          after_save(method_name)
-          after_destroy(method_name)
-        end
-
-        def find_with_associations(options = {})
-          catch :invalid_query do
-            join_dependency = JoinDependency.new(self, merge_includes(scope(:find, :include), options[:include]), options[:joins])
-            rows = select_all_rows(options, join_dependency)
-            return join_dependency.instantiate(rows)
-          end
-          []
-        end
-
-        # Creates before_destroy callback methods that nullify, delete or destroy
-        # has_many associated objects, according to the defined :dependent rule.
-        #
-        # See HasManyAssociation#delete_records.  Dependent associations
-        # delete children, otherwise foreign key is set to NULL.
-        #
-        # The +extra_conditions+ parameter, which is not used within the main
-        # Active Record codebase, is meant to allow plugins to define extra
-        # finder conditions.
-        def configure_dependency_for_has_many(reflection, extra_conditions = nil)
-          if reflection.options.include?(:dependent)
-            # Add polymorphic type if the :as option is present
-            dependent_conditions = []
-            dependent_conditions << "#{reflection.primary_key_name} = \#{record.#{reflection.name}.send(:owner_quoted_id)}"
-            dependent_conditions << "#{reflection.options[:as]}_type = '#{base_class.name}'" if reflection.options[:as]
-            dependent_conditions << sanitize_sql(reflection.options[:conditions], reflection.quoted_table_name) if reflection.options[:conditions]
-            dependent_conditions << extra_conditions if extra_conditions
-            dependent_conditions = dependent_conditions.collect {|where| "(#{where})" }.join(" AND ")
-            dependent_conditions = dependent_conditions.gsub('@', '\@')
-            case reflection.options[:dependent]
-              when :destroy
-                method_name = "has_many_dependent_destroy_for_#{reflection.name}".to_sym
-                define_method(method_name) do
-                  send(reflection.name).each { |o| o.destroy }
-                end
-                before_destroy method_name
-              when :delete_all
-                module_eval %Q{
-                  before_destroy do |record|                  # before_destroy do |record|
-                    delete_all_has_many_dependencies(record,  #   delete_all_has_many_dependencies(record,
-                      "#{reflection.name}",                   #     "posts",
-                      #{reflection.class_name},               #     Post,
-                      %@#{dependent_conditions}@)             #     %@...@) # this is a string literal like %(...)
-                  end                                         # end
-                }
-              when :nullify
-                module_eval %Q{
-                  before_destroy do |record|                  # before_destroy do |record|
-                    nullify_has_many_dependencies(record,     #   nullify_has_many_dependencies(record,
-                      "#{reflection.name}",                   #     "posts",
-                      #{reflection.class_name},               #     Post,
-                      "#{reflection.primary_key_name}",       #     "user_id",
-                      %@#{dependent_conditions}@)             #     %@...@) # this is a string literal like %(...)
-                  end                                         # end
-                }
-              else
-                raise ArgumentError, "The :dependent option expects either :destroy, :delete_all, or :nullify (#{reflection.options[:dependent].inspect})"
-            end
-          end
-        end
-
-        # Creates before_destroy callback methods that nullify, delete or destroy
-        # has_one associated objects, according to the defined :dependent rule.
-        def configure_dependency_for_has_one(reflection)
-          if reflection.options.include?(:dependent)
-            case reflection.options[:dependent]
-              when :destroy
-                method_name = "has_one_dependent_destroy_for_#{reflection.name}".to_sym
-                define_method(method_name) do
-                  association = send(reflection.name)
-                  association.destroy unless association.nil?
-                end
-                before_destroy method_name
-              when :delete
-                method_name = "has_one_dependent_delete_for_#{reflection.name}".to_sym
-                define_method(method_name) do
-                  # Retrieve the associated object and delete it. The retrieval
-                  # is necessary because there may be multiple associated objects
-                  # with foreign keys pointing to this object, and we only want
-                  # to delete the correct one, not all of them.
-                  association = send(reflection.name)
-                  association.delete unless association.nil?
-                end
-                before_destroy method_name
-              when :nullify
-                method_name = "has_one_dependent_nullify_for_#{reflection.name}".to_sym
-                define_method(method_name) do
-                  association = send(reflection.name)
-                  association.update_attribute(reflection.primary_key_name, nil) unless association.nil?
-                end
-                before_destroy method_name
-              else
-                raise ArgumentError, "The :dependent option expects either :destroy, :delete or :nullify (#{reflection.options[:dependent].inspect})"
-            end
-          end
-        end
-
-        def configure_dependency_for_belongs_to(reflection)
-          if reflection.options.include?(:dependent)
-            case reflection.options[:dependent]
-              when :destroy
-                method_name = "belongs_to_dependent_destroy_for_#{reflection.name}".to_sym
-                define_method(method_name) do
-                  association = send(reflection.name)
-                  association.destroy unless association.nil?
-                end
-                after_destroy method_name
-              when :delete
-                method_name = "belongs_to_dependent_delete_for_#{reflection.name}".to_sym
-                define_method(method_name) do
-                  association = send(reflection.name)
-                  association.delete unless association.nil?
-                end
-                after_destroy method_name
-              else
-                raise ArgumentError, "The :dependent option expects either :destroy or :delete (#{reflection.options[:dependent].inspect})"
-            end
-          end
-        end
-
-        def delete_all_has_many_dependencies(record, reflection_name, association_class, dependent_conditions)
-          association_class.delete_all(dependent_conditions)
-        end
-
-        def nullify_has_many_dependencies(record, reflection_name, association_class, primary_key_name, dependent_conditions)
-          association_class.update_all("#{primary_key_name} = NULL", dependent_conditions)
-        end
-
-        mattr_accessor :valid_keys_for_has_many_association
-        @@valid_keys_for_has_many_association = [
-          :class_name, :table_name, :foreign_key, :primary_key,
-          :dependent,
-          :select, :conditions, :include, :order, :group, :having, :limit, :offset,
-          :as, :through, :source, :source_type,
-          :uniq,
-          :finder_sql, :counter_sql,
-          :before_add, :after_add, :before_remove, :after_remove,
-          :extend, :readonly,
-          :validate
-        ]
-
-        def create_has_many_reflection(association_id, options, &extension)
-          options.assert_valid_keys(valid_keys_for_has_many_association)
-          options[:extend] = create_extension_modules(association_id, extension, options[:extend])
-
-          create_reflection(:has_many, association_id, options, self)
-        end
-
-        mattr_accessor :valid_keys_for_has_one_association
-        @@valid_keys_for_has_one_association = [
-          :class_name, :foreign_key, :remote, :select, :conditions, :order,
-          :include, :dependent, :counter_cache, :extend, :as, :readonly,
-          :validate, :primary_key
-        ]
-
-        def create_has_one_reflection(association_id, options)
-          options.assert_valid_keys(valid_keys_for_has_one_association)
-          create_reflection(:has_one, association_id, options, self)
-        end
-
-        def create_has_one_through_reflection(association_id, options)
-          options.assert_valid_keys(
-            :class_name, :foreign_key, :remote, :select, :conditions, :order, :include, :dependent, :counter_cache, :extend, :as, :through, :source, :source_type, :validate
-          )
-          create_reflection(:has_one, association_id, options, self)
-        end
-
-        mattr_accessor :valid_keys_for_belongs_to_association
-        @@valid_keys_for_belongs_to_association = [
-          :class_name, :primary_key, :foreign_key, :foreign_type, :remote, :select, :conditions,
-          :include, :dependent, :counter_cache, :extend, :polymorphic, :readonly,
-          :validate, :touch
-        ]
-
-        def create_belongs_to_reflection(association_id, options)
-          options.assert_valid_keys(valid_keys_for_belongs_to_association)
-          reflection = create_reflection(:belongs_to, association_id, options, self)
-
-          if options[:polymorphic]
-            reflection.options[:foreign_type] ||= reflection.class_name.underscore + "_type"
-          end
-
-          reflection
-        end
-
-        mattr_accessor :valid_keys_for_has_and_belongs_to_many_association
-        @@valid_keys_for_has_and_belongs_to_many_association = [
-          :class_name, :table_name, :join_table, :foreign_key, :association_foreign_key,
-          :select, :conditions, :include, :order, :group, :having, :limit, :offset,
-          :uniq,
-          :finder_sql, :counter_sql, :delete_sql, :insert_sql,
-          :before_add, :after_add, :before_remove, :after_remove,
-          :extend, :readonly,
-          :validate
-        ]
-
-        def create_has_and_belongs_to_many_reflection(association_id, options, &extension)
-          options.assert_valid_keys(valid_keys_for_has_and_belongs_to_many_association)
-
-          options[:extend] = create_extension_modules(association_id, extension, options[:extend])
-
-          reflection = create_reflection(:has_and_belongs_to_many, association_id, options, self)
-          
-          if reflection.association_foreign_key == reflection.primary_key_name
-            raise HasAndBelongsToManyAssociationForeignKeyNeeded.new(reflection)
-          end
-
-          reflection.options[:join_table] ||= join_table_name(undecorated_table_name(self.to_s), undecorated_table_name(reflection.class_name))
-
-          reflection
-        end
-
-        def reflect_on_included_associations(associations)
-          [ associations ].flatten.collect { |association| reflect_on_association(association.to_s.intern) }
-        end
-
-        def guard_against_unlimitable_reflections(reflections, options)
-          if (options[:offset] || options[:limit]) && !using_limitable_reflections?(reflections)
-            raise(
-              ConfigurationError,
-              "You can not use offset and limit together with has_many or has_and_belongs_to_many associations"
-            )
-          end
-        end
-
-        def select_all_rows(options, join_dependency)
-          connection.select_all(
-            construct_finder_sql_with_included_associations(options, join_dependency),
-            "#{name} Load Including Associations"
-          )
-        end
-
-        def construct_finder_sql_with_included_associations(options, join_dependency)
-          scope = scope(:find)
-          sql = "SELECT #{column_aliases(join_dependency)} FROM #{(scope && scope[:from]) || options[:from] || quoted_table_name} "
-          sql << join_dependency.join_associations.collect{|join| join.association_join }.join
-
-          add_joins!(sql, options[:joins], scope)
-          add_conditions!(sql, options[:conditions], scope)
-          add_limited_ids_condition!(sql, options, join_dependency) if !using_limitable_reflections?(join_dependency.reflections) && ((scope && scope[:limit]) || options[:limit])
-
-          add_group!(sql, options[:group], options[:having], scope)
-          add_order!(sql, options[:order], scope)
-          add_limit!(sql, options, scope) if using_limitable_reflections?(join_dependency.reflections)
-          add_lock!(sql, options, scope)
-
-          return sanitize_sql(sql)
-        end
-
-        def add_limited_ids_condition!(sql, options, join_dependency)
-          unless (id_list = select_limited_ids_list(options, join_dependency)).empty?
-            sql << "#{condition_word(sql)} #{connection.quote_table_name table_name}.#{primary_key} IN (#{id_list}) "
-          else
-            throw :invalid_query
-          end
-        end
-
-        def select_limited_ids_list(options, join_dependency)
-          pk = columns_hash[primary_key]
-
-          connection.select_all(
-            construct_finder_sql_for_association_limiting(options, join_dependency),
-            "#{name} Load IDs For Limited Eager Loading"
-          ).collect { |row| connection.quote(row[primary_key], pk) }.join(", ")
-        end
-
-        def construct_finder_sql_for_association_limiting(options, join_dependency)
-          scope       = scope(:find)
-
-          # Only join tables referenced in order or conditions since this is particularly slow on the pre-query.
-          tables_from_conditions = conditions_tables(options)
-          tables_from_order      = order_tables(options)
-          all_tables             = tables_from_conditions + tables_from_order
-          distinct_join_associations = all_tables.uniq.map{|table|
-            join_dependency.joins_for_table_name(table)
-          }.flatten.compact.uniq
-
-          order = options[:order]
-          if scoped_order = (scope && scope[:order])
-            order = order ? "#{order}, #{scoped_order}" : scoped_order
-          end
-
-          is_distinct = !options[:joins].blank? || include_eager_conditions?(options, tables_from_conditions) || include_eager_order?(options, tables_from_order)
-          sql = "SELECT "
-          if is_distinct
-            sql << connection.distinct("#{connection.quote_table_name table_name}.#{primary_key}", order)
-          else
-            sql << primary_key
-          end
-          sql << " FROM #{connection.quote_table_name table_name} "
-
-          if is_distinct
-            sql << distinct_join_associations.collect { |assoc| assoc.association_join }.join
-            add_joins!(sql, options[:joins], scope)
-          end
-
-          add_conditions!(sql, options[:conditions], scope)
-          add_group!(sql, options[:group], options[:having], scope)
-
-          if order && is_distinct
-            connection.add_order_by_for_association_limiting!(sql, :order => order)
-          else
-            add_order!(sql, options[:order], scope)
-          end
-
-          add_limit!(sql, options, scope)
-
-          return sanitize_sql(sql)
-        end
-
-        def tables_in_string(string)
-          return [] if string.blank?
-          string.scan(/([\.a-zA-Z_]+).?\./).flatten
-        end
-
-        def tables_in_hash(hash)
-          return [] if hash.blank?
-          tables = hash.map do |key, value|
-            if value.is_a?(Hash)
-              key.to_s
-            else
-              tables_in_string(key) if key.is_a?(String)
-            end
-          end
-          tables.flatten.compact
-        end
-
-        def conditions_tables(options)
-          # look in both sets of conditions
-          conditions = [scope(:find, :conditions), options[:conditions]].inject([]) do |all, cond|
-            case cond
-              when nil   then all
-              when Array then all << tables_in_string(cond.first)
-              when Hash  then all << tables_in_hash(cond)
-              else            all << tables_in_string(cond)
-            end
-          end
-          conditions.flatten
-        end
-
-        def order_tables(options)
-          order = [options[:order], scope(:find, :order) ].join(", ")
-          return [] unless order && order.is_a?(String)
-          tables_in_string(order)
-        end
-
-        def selects_tables(options)
-          select = options[:select]
-          return [] unless select && select.is_a?(String)
-          tables_in_string(select)
-        end
-
-        def joined_tables(options)
-          scope = scope(:find)
-          joins = options[:joins]
-          merged_joins = scope && scope[:joins] && joins ? merge_joins(scope[:joins], joins) : (joins || scope && scope[:joins])
-          [table_name] + case merged_joins
-          when Symbol, Hash, Array
-            if array_of_strings?(merged_joins)
-              tables_in_string(merged_joins.join(' '))
-            else
-              join_dependency = ActiveRecord::Associations::ClassMethods::InnerJoinDependency.new(self, merged_joins, nil)
-              join_dependency.join_associations.collect {|join_association| [join_association.aliased_join_table_name, join_association.aliased_table_name]}.flatten.compact
-            end
-          else
-            tables_in_string(merged_joins)
-          end
-        end
-
-        # Checks if the conditions reference a table other than the current model table
-        def include_eager_conditions?(options, tables = nil, joined_tables = nil)
-          ((tables || conditions_tables(options)) - (joined_tables || joined_tables(options))).any?
-        end
-
-        # Checks if the query order references a table other than the current model's table.
-        def include_eager_order?(options, tables = nil, joined_tables = nil)
-          ((tables || order_tables(options)) - (joined_tables || joined_tables(options))).any?
-        end
-
-        def include_eager_select?(options, joined_tables = nil)
-          (selects_tables(options) - (joined_tables || joined_tables(options))).any?
-        end
-
-        def references_eager_loaded_tables?(options)
-          joined_tables = joined_tables(options)
-          include_eager_order?(options, nil, joined_tables) || include_eager_conditions?(options, nil, joined_tables) || include_eager_select?(options, joined_tables)
-        end
-
-        def using_limitable_reflections?(reflections)
-          reflections.reject { |r| [ :belongs_to, :has_one ].include?(r.macro) }.length.zero?
-        end
-
-        def column_aliases(join_dependency)
-          join_dependency.joins.collect{|join| join.column_names_with_alias.collect{|column_name, aliased_name|
-              "#{connection.quote_table_name join.aliased_table_name}.#{connection.quote_column_name column_name} AS #{aliased_name}"}}.flatten.join(", ")
-        end
-
-        def add_association_callbacks(association_name, options)
-          callbacks = %w(before_add after_add before_remove after_remove)
-          callbacks.each do |callback_name|
-            full_callback_name = "#{callback_name}_for_#{association_name}"
-            defined_callbacks = options[callback_name.to_sym]
-            if options.has_key?(callback_name.to_sym)
-              class_inheritable_reader full_callback_name.to_sym
-              write_inheritable_attribute(full_callback_name.to_sym, [defined_callbacks].flatten)
-            else
-              write_inheritable_attribute(full_callback_name.to_sym, [])
-            end
-          end
-        end
-
-        def condition_word(sql)
-          sql =~ /where/i ? " AND " : "WHERE "
-        end
-
-        def create_extension_modules(association_id, block_extension, extensions)
-          if block_extension
-            extension_module_name = "#{self.to_s.demodulize}#{association_id.to_s.camelize}AssociationExtension"
-
-            silence_warnings do
-              self.parent.const_set(extension_module_name, Module.new(&block_extension))
-            end
-            Array(extensions).push("#{self.parent}::#{extension_module_name}".constantize)
-          else
-            Array(extensions)
-          end
-        end
-
-        class JoinDependency # :nodoc:
-          attr_reader :joins, :reflections, :table_aliases
-
-          def initialize(base, associations, joins)
-            @joins                 = [JoinBase.new(base, joins)]
-            @associations          = associations
-            @reflections           = []
-            @base_records_hash     = {}
-            @base_records_in_order = []
-            @table_aliases         = Hash.new { |aliases, table| aliases[table] = 0 }
-            @table_aliases[base.table_name] = 1
-            build(associations)
-          end
-
-          def join_associations
-            @joins[1..-1].to_a
-          end
-
-          def join_base
-            @joins[0]
-          end
-
-          def instantiate(rows)
-            rows.each_with_index do |row, i|
-              primary_id = join_base.record_id(row)
-              unless @base_records_hash[primary_id]
-                @base_records_in_order << (@base_records_hash[primary_id] = join_base.instantiate(row))
-              end
-              construct(@base_records_hash[primary_id], @associations, join_associations.dup, row)
-            end
-            remove_duplicate_results!(join_base.active_record, @base_records_in_order, @associations)
-            return @base_records_in_order
-          end
-
-          def remove_duplicate_results!(base, records, associations)
-            case associations
-              when Symbol, String
-                reflection = base.reflections[associations]
-                if reflection && [:has_many, :has_and_belongs_to_many].include?(reflection.macro)
-                  records.each { |record| record.send(reflection.name).target.uniq! }
-                end
-              when Array
-                associations.each do |association|
-                  remove_duplicate_results!(base, records, association)
-                end
-              when Hash
-                associations.keys.each do |name|
-                  reflection = base.reflections[name]
-                  is_collection = [:has_many, :has_and_belongs_to_many].include?(reflection.macro)
-
-                  parent_records = records.map do |record|
-                    descendant = record.send(reflection.name)
-                    next unless descendant
-                    descendant.target.uniq! if is_collection
-                    descendant
-                  end.flatten.compact
-
-                  remove_duplicate_results!(reflection.klass, parent_records, associations[name]) unless parent_records.empty?
-                end
-            end
-          end
-
-          def join_for_table_name(table_name)
-            join = (@joins.select{|j|j.aliased_table_name == table_name.gsub(/^\"(.*)\"$/){$1} }.first) rescue nil
-            return join unless join.nil?
-            @joins.select{|j|j.is_a?(JoinAssociation) && j.aliased_join_table_name == table_name.gsub(/^\"(.*)\"$/){$1} }.first rescue nil
-          end
-
-          def joins_for_table_name(table_name)
-            join = join_for_table_name(table_name)
-            result = nil
-            if join && join.is_a?(JoinAssociation)
-              result = [join]
-              if join.parent && join.parent.is_a?(JoinAssociation)
-                result = joins_for_table_name(join.parent.aliased_table_name) +
-                         result
-              end
-            end
-            result
-          end
-
-          protected
-            def build(associations, parent = nil)
-              parent ||= @joins.last
-              case associations
-                when Symbol, String
-                  reflection = parent.reflections[associations.to_s.intern] or
-                  raise ConfigurationError, "Association named '#{ associations }' was not found; perhaps you misspelled it?"
-                  @reflections << reflection
-                  @joins << build_join_association(reflection, parent)
-                when Array
-                  associations.each do |association|
-                    build(association, parent)
-                  end
-                when Hash
-                  associations.keys.sort{|a,b|a.to_s<=>b.to_s}.each do |name|
-                    build(name, parent)
-                    build(associations[name])
-                  end
-                else
-                  raise ConfigurationError, associations.inspect
-              end
-            end
-
-            # overridden in InnerJoinDependency subclass
-            def build_join_association(reflection, parent)
-              JoinAssociation.new(reflection, self, parent)
-            end
-
-            def construct(parent, associations, joins, row)
-              case associations
-                when Symbol, String
-                  join = joins.detect{|j| j.reflection.name.to_s == associations.to_s && j.parent_table_name == parent.class.table_name }
-                  raise(ConfigurationError, "No such association") if join.nil?
-
-                  joins.delete(join)
-                  construct_association(parent, join, row)
-                when Array
-                  associations.each do |association|
-                    construct(parent, association, joins, row)
-                  end
-                when Hash
-                  associations.keys.sort{|a,b|a.to_s<=>b.to_s}.each do |name|
-                    join = joins.detect{|j| j.reflection.name.to_s == name.to_s && j.parent_table_name == parent.class.table_name }
-                    raise(ConfigurationError, "No such association") if join.nil?
-
-                    association = construct_association(parent, join, row)
-                    joins.delete(join)
-                    construct(association, associations[name], joins, row) if association
-                  end
-                else
-                  raise ConfigurationError, associations.inspect
-              end
-            end
-
-            def construct_association(record, join, row)
-              case join.reflection.macro
-                when :has_many, :has_and_belongs_to_many
-                  collection = record.send(join.reflection.name)
-                  collection.loaded
-
-                  return nil if record.id.to_s != join.parent.record_id(row).to_s or row[join.aliased_primary_key].nil?
-                  association = join.instantiate(row)
-                  collection.target.push(association)
-                when :has_one
-                  return if record.id.to_s != join.parent.record_id(row).to_s
-                  return if record.instance_variable_defined?("@#{join.reflection.name}")
-                  association = join.instantiate(row) unless row[join.aliased_primary_key].nil?
-                  record.send("set_#{join.reflection.name}_target", association)
-                when :belongs_to
-                  return if record.id.to_s != join.parent.record_id(row).to_s or row[join.aliased_primary_key].nil?
-                  association = join.instantiate(row)
-                  record.send("set_#{join.reflection.name}_target", association)
-                else
-                  raise ConfigurationError, "unknown macro: #{join.reflection.macro}"
-              end
-              return association
-            end
-
-          class JoinBase # :nodoc:
-            attr_reader :active_record, :table_joins
-            delegate    :table_name, :column_names, :primary_key, :reflections, :sanitize_sql, :to => :active_record
-
-            def initialize(active_record, joins = nil)
-              @active_record = active_record
-              @cached_record = {}
-              @table_joins   = joins
-            end
-
-            def aliased_prefix
-              "t0"
-            end
-
-            def aliased_primary_key
-              "#{aliased_prefix}_r0"
-            end
-
-            def aliased_table_name
-              active_record.table_name
-            end
-
-            def column_names_with_alias
-              unless defined?(@column_names_with_alias)
-                @column_names_with_alias = []
-
-                ([primary_key] + (column_names - [primary_key])).each_with_index do |column_name, i|
-                  @column_names_with_alias << [column_name, "#{aliased_prefix}_r#{i}"]
-                end
-              end
-
-              @column_names_with_alias
-            end
-
-            def extract_record(row)
-              column_names_with_alias.inject({}){|record, (cn, an)| record[cn] = row[an]; record}
-            end
-
-            def record_id(row)
-              row[aliased_primary_key]
-            end
-
-            def instantiate(row)
-              @cached_record[record_id(row)] ||= active_record.send(:instantiate, extract_record(row))
-            end
-          end
-
-          class JoinAssociation < JoinBase # :nodoc:
-            attr_reader :reflection, :parent, :aliased_table_name, :aliased_prefix, :aliased_join_table_name, :parent_table_name
-            delegate    :options, :klass, :through_reflection, :source_reflection, :to => :reflection
-
-            def initialize(reflection, join_dependency, parent = nil)
-              reflection.check_validity!
-              if reflection.options[:polymorphic]
-                raise EagerLoadPolymorphicError.new(reflection)
-              end
-
-              super(reflection.klass)
-              @join_dependency    = join_dependency
-              @parent             = parent
-              @reflection         = reflection
-              @aliased_prefix     = "t#{ join_dependency.joins.size }"
-              @parent_table_name  = parent.active_record.table_name
-              @aliased_table_name = aliased_table_name_for(table_name)
-
-              if reflection.macro == :has_and_belongs_to_many
-                @aliased_join_table_name = aliased_table_name_for(reflection.options[:join_table], "_join")
-              end
-
-              if [:has_many, :has_one].include?(reflection.macro) && reflection.options[:through]
-                @aliased_join_table_name = aliased_table_name_for(reflection.through_reflection.klass.table_name, "_join")
-              end
-            end
-
-            def association_join
-              connection = reflection.active_record.connection
-              join = case reflection.macro
-                when :has_and_belongs_to_many
-                  " #{join_type} %s ON %s.%s = %s.%s " % [
-                     table_alias_for(options[:join_table], aliased_join_table_name),
-                     connection.quote_table_name(aliased_join_table_name),
-                     options[:foreign_key] || reflection.active_record.to_s.foreign_key,
-                     connection.quote_table_name(parent.aliased_table_name),
-                     reflection.active_record.primary_key] +
-                  " #{join_type} %s ON %s.%s = %s.%s " % [
-                     table_name_and_alias,
-                     connection.quote_table_name(aliased_table_name),
-                     klass.primary_key,
-                     connection.quote_table_name(aliased_join_table_name),
-                     options[:association_foreign_key] || klass.to_s.foreign_key
-                     ]
-                when :has_many, :has_one
-                  case
-                    when reflection.options[:through]
-                      through_conditions = through_reflection.options[:conditions] ? "AND #{interpolate_sql(sanitize_sql(through_reflection.options[:conditions]))}" : ''
-
-                      jt_foreign_key = jt_as_extra = jt_source_extra = jt_sti_extra = nil
-                      first_key = second_key = as_extra = nil
-
-                      if through_reflection.options[:as] # has_many :through against a polymorphic join
-                        jt_foreign_key = through_reflection.options[:as].to_s + '_id'
-                        jt_as_extra = " AND %s.%s = %s" % [
-                          connection.quote_table_name(aliased_join_table_name),
-                          connection.quote_column_name(through_reflection.options[:as].to_s + '_type'),
-                          klass.quote_value(parent.active_record.base_class.name)
-                        ]
-                      else
-                        jt_foreign_key = through_reflection.primary_key_name
-                      end
-
-                      case source_reflection.macro
-                      when :has_many
-                        if source_reflection.options[:as]
-                          first_key   = "#{source_reflection.options[:as]}_id"
-                          second_key  = options[:foreign_key] || primary_key
-                          as_extra    = " AND %s.%s = %s" % [
-                            connection.quote_table_name(aliased_table_name),
-                            connection.quote_column_name("#{source_reflection.options[:as]}_type"),
-                            klass.quote_value(source_reflection.active_record.base_class.name)
-                          ]
-                        else
-                          first_key   = through_reflection.klass.base_class.to_s.foreign_key
-                          second_key  = options[:foreign_key] || primary_key
-                        end
-
-                        unless through_reflection.klass.descends_from_active_record?
-                          jt_sti_extra = " AND %s.%s = %s" % [
-                            connection.quote_table_name(aliased_join_table_name),
-                            connection.quote_column_name(through_reflection.active_record.inheritance_column),
-                            through_reflection.klass.quote_value(through_reflection.klass.sti_name)]
-                        end
-                      when :belongs_to
-                        first_key = primary_key
-                        if reflection.options[:source_type]
-                          second_key = source_reflection.association_foreign_key
-                          jt_source_extra = " AND %s.%s = %s" % [
-                            connection.quote_table_name(aliased_join_table_name),
-                            connection.quote_column_name(reflection.source_reflection.options[:foreign_type]),
-                            klass.quote_value(reflection.options[:source_type])
-                          ]
-                        else
-                          second_key = source_reflection.primary_key_name
-                        end
-                      end
-
-                      " #{join_type} %s ON (%s.%s = %s.%s%s%s%s) " % [
-                        table_alias_for(through_reflection.klass.table_name, aliased_join_table_name),
-                        connection.quote_table_name(parent.aliased_table_name),
-                        connection.quote_column_name(parent.primary_key),
-                        connection.quote_table_name(aliased_join_table_name),
-                        connection.quote_column_name(jt_foreign_key),
-                        jt_as_extra, jt_source_extra, jt_sti_extra
-                      ] +
-                      " #{join_type} %s ON (%s.%s = %s.%s%s) " % [
-                        table_name_and_alias,
-                        connection.quote_table_name(aliased_table_name),
-                        connection.quote_column_name(first_key),
-                        connection.quote_table_name(aliased_join_table_name),
-                        connection.quote_column_name(second_key),
-                        as_extra
-                      ]
-
-                    when reflection.options[:as] && [:has_many, :has_one].include?(reflection.macro)
-                      " #{join_type} %s ON %s.%s = %s.%s AND %s.%s = %s" % [
-                        table_name_and_alias,
-                        connection.quote_table_name(aliased_table_name),
-                        "#{reflection.options[:as]}_id",
-                        connection.quote_table_name(parent.aliased_table_name),
-                        parent.primary_key,
-                        connection.quote_table_name(aliased_table_name),
-                        "#{reflection.options[:as]}_type",
-                        klass.quote_value(parent.active_record.base_class.name)
-                      ]
-                    else
-                      foreign_key = options[:foreign_key] || reflection.active_record.name.foreign_key
-                      " #{join_type} %s ON %s.%s = %s.%s " % [
-                        table_name_and_alias,
-                        aliased_table_name,
-                        foreign_key,
-                        parent.aliased_table_name,
-                        reflection.options[:primary_key] || parent.primary_key
-                      ]
-                  end
-                when :belongs_to
-                  " #{join_type} %s ON %s.%s = %s.%s " % [
-                     table_name_and_alias,
-                     connection.quote_table_name(aliased_table_name),
-                     reflection.klass.primary_key,
-                     connection.quote_table_name(parent.aliased_table_name),
-                     options[:foreign_key] || reflection.primary_key_name
-                    ]
-                else
-                  ""
-              end || ''
-              join << %(AND %s) % [
-                klass.send(:type_condition, aliased_table_name)] unless klass.descends_from_active_record?
-
-              [through_reflection, reflection].each do |ref|
-                join << "AND #{interpolate_sql(sanitize_sql(ref.options[:conditions], aliased_table_name))} " if ref && ref.options[:conditions]
-              end
-
-              join
-            end
-
-            protected
-
-              def aliased_table_name_for(name, suffix = nil)
-                if !parent.table_joins.blank? && parent.table_joins.to_s.downcase =~ %r{join(\s+\w+)?\s+#{active_record.connection.quote_table_name name.downcase}\son}
-                  @join_dependency.table_aliases[name] += 1
-                end
-
-                unless @join_dependency.table_aliases[name].zero?
-                  # if the table name has been used, then use an alias
-                  name = active_record.connection.table_alias_for "#{pluralize(reflection.name)}_#{parent_table_name}#{suffix}"
-                  table_index = @join_dependency.table_aliases[name]
-                  @join_dependency.table_aliases[name] += 1
-                  name = name[0..active_record.connection.table_alias_length-3] + "_#{table_index+1}" if table_index > 0
-                else
-                  @join_dependency.table_aliases[name] += 1
-                end
-
-                name
-              end
-
-              def pluralize(table_name)
-                ActiveRecord::Base.pluralize_table_names ? table_name.to_s.pluralize : table_name
-              end
-
-              def table_alias_for(table_name, table_alias)
-                 "#{reflection.active_record.connection.quote_table_name(table_name)} #{table_alias if table_name != table_alias}".strip
-              end
-
-              def table_name_and_alias
-                table_alias_for table_name, @aliased_table_name
-              end
-
-              def interpolate_sql(sql)
-                instance_eval("%@#{sql.gsub('@', '\@')}@")
-              end
-
-            private
-              def join_type
-                "LEFT OUTER JOIN"
-              end
-          end
-        end
-
-        class InnerJoinDependency < JoinDependency # :nodoc:
-          protected
-            def build_join_association(reflection, parent)
-              InnerJoinAssociation.new(reflection, self, parent)
-            end
-
-          class InnerJoinAssociation < JoinAssociation
-            private
-              def join_type
-                "INNER JOIN"
-              end
-          end
-        end
-
-    end
-  end
-end
@@ -1,475 +0,0 @@
-require 'set'
-
-module ActiveRecord
-  module Associations
-    # AssociationCollection is an abstract class that provides common stuff to
-    # ease the implementation of association proxies that represent
-    # collections. See the class hierarchy in AssociationProxy.
-    #
-    # You need to be careful with assumptions regarding the target: The proxy
-    # does not fetch records from the database until it needs them, but new
-    # ones created with +build+ are added to the target. So, the target may be
-    # non-empty and still lack children waiting to be read from the database.
-    # If you look directly to the database you cannot assume that's the entire
-    # collection because new records may have beed added to the target, etc.
-    #
-    # If you need to work on all current children, new and existing records,
-    # +load_target+ and the +loaded+ flag are your friends.
-    class AssociationCollection < AssociationProxy #:nodoc:
-      def initialize(owner, reflection)
-        super
-        construct_sql
-      end
-      
-      def find(*args)
-        options = args.extract_options!
-
-        # If using a custom finder_sql, scan the entire collection.
-        if @reflection.options[:finder_sql]
-          expects_array = args.first.kind_of?(Array)
-          ids           = args.flatten.compact.uniq.map { |arg| arg.to_i }
-
-          if ids.size == 1
-            id = ids.first
-            record = load_target.detect { |r| id == r.id }
-            expects_array ? [ record ] : record
-          else
-            load_target.select { |r| ids.include?(r.id) }
-          end
-        else
-          conditions = "#{@finder_sql}"
-          if sanitized_conditions = sanitize_sql(options[:conditions])
-            conditions << " AND (#{sanitized_conditions})"
-          end
-          
-          options[:conditions] = conditions
-
-          if options[:order] && @reflection.options[:order]
-            options[:order] = "#{options[:order]}, #{@reflection.options[:order]}"
-          elsif @reflection.options[:order]
-            options[:order] = @reflection.options[:order]
-          end
-          
-          # Build options specific to association
-          construct_find_options!(options)
-          
-          merge_options_from_reflection!(options)
-          
-          # Pass through args exactly as we received them.
-          args << options
-          @reflection.klass.find(*args)
-        end
-      end
-
-      # Fetches the first one using SQL if possible.
-      def first(*args)
-        if fetch_first_or_last_using_find?(args)
-          find(:first, *args)
-        else
-          load_target unless loaded?
-          @target.first(*args)
-        end
-      end
-
-      # Fetches the last one using SQL if possible.
-      def last(*args)
-        if fetch_first_or_last_using_find?(args)
-          find(:last, *args)
-        else
-          load_target unless loaded?
-          @target.last(*args)
-        end
-      end
-
-      def to_ary
-        load_target
-        if @target.is_a?(Array)
-          @target.to_ary
-        else
-          Array(@target)
-        end
-      end
-
-      def reset
-        reset_target!
-        @loaded = false
-      end
-
-      def build(attributes = {}, &block)
-        if attributes.is_a?(Array)
-          attributes.collect { |attr| build(attr, &block) }
-        else
-          build_record(attributes) do |record|
-            block.call(record) if block_given?
-            set_belongs_to_association_for(record)
-          end
-        end
-      end
-
-      # Add +records+ to this association.  Returns +self+ so method calls may be chained.  
-      # Since << flattens its argument list and inserts each record, +push+ and +concat+ behave identically.
-      def <<(*records)
-        result = true
-        load_target if @owner.new_record?
-
-        transaction do
-          flatten_deeper(records).each do |record|
-            raise_on_type_mismatch(record)
-            add_record_to_target_with_callbacks(record) do |r|
-              result &&= insert_record(record) unless @owner.new_record?
-            end
-          end
-        end
-
-        result && self
-      end
-
-      alias_method :push, :<<
-      alias_method :concat, :<<
-
-      # Starts a transaction in the association class's database connection.
-      #
-      #   class Author < ActiveRecord::Base
-      #     has_many :books
-      #   end
-      #
-      #   Author.find(:first).books.transaction do
-      #     # same effect as calling Book.transaction
-      #   end
-      def transaction(*args)
-        @reflection.klass.transaction(*args) do
-          yield
-        end
-      end
-
-      # Remove all records from this association
-      #
-      # See delete for more info.
-      def delete_all
-        load_target
-        delete(@target)
-        reset_target!
-      end
-      
-      # Calculate sum using SQL, not Enumerable
-      def sum(*args)
-        if block_given?
-          calculate(:sum, *args) { |*block_args| yield(*block_args) }
-        else
-          calculate(:sum, *args)
-        end
-      end
-
-      # Count all records using SQL. If the +:counter_sql+ option is set for the association, it will
-      # be used for the query. If no +:counter_sql+ was supplied, but +:finder_sql+ was set, the
-      # descendant's +construct_sql+ method will have set :counter_sql automatically.
-      # Otherwise, construct options and pass them with scope to the target class's +count+.
-      def count(*args)
-        if @reflection.options[:counter_sql]
-          @reflection.klass.count_by_sql(@counter_sql)
-        else
-          column_name, options = @reflection.klass.send(:construct_count_options_from_args, *args)
-          if @reflection.options[:uniq]
-            # This is needed because 'SELECT count(DISTINCT *)..' is not valid SQL.
-            column_name = "#{@reflection.quoted_table_name}.#{@reflection.klass.primary_key}" if column_name == :all
-            options.merge!(:distinct => true)
-          end
-
-          value = @reflection.klass.send(:with_scope, construct_scope) { @reflection.klass.count(column_name, options) }
-
-          limit  = @reflection.options[:limit]
-          offset = @reflection.options[:offset]
-
-          if limit || offset
-            [ [value - offset.to_i, 0].max, limit.to_i ].min
-          else
-            value
-          end
-        end
-      end
-
-      # Removes +records+ from this association calling +before_remove+ and
-      # +after_remove+ callbacks.
-      #
-      # This method is abstract in the sense that +delete_records+ has to be
-      # provided by descendants. Note this method does not imply the records
-      # are actually removed from the database, that depends precisely on
-      # +delete_records+. They are in any case removed from the collection.
-      def delete(*records)
-        remove_records(records) do |records, old_records|
-          delete_records(old_records) if old_records.any?
-          records.each { |record| @target.delete(record) }
-        end
-      end
-
-      # Destroy +records+ and remove them from this association calling
-      # +before_remove+ and +after_remove+ callbacks.
-      #
-      # Note that this method will _always_ remove records from the database
-      # ignoring the +:dependent+ option.
-      def destroy(*records)
-        records = find(records) if records.any? {|record| record.kind_of?(Fixnum) || record.kind_of?(String)}
-        remove_records(records) do |records, old_records|
-          old_records.each { |record| record.destroy }
-        end
-
-        load_target
-      end
-
-      # Removes all records from this association.  Returns +self+ so method calls may be chained.
-      def clear
-        return self if length.zero? # forces load_target if it hasn't happened already
-
-        if @reflection.options[:dependent] && @reflection.options[:dependent] == :destroy
-          destroy_all
-        else          
-          delete_all
-        end
-
-        self
-      end
-
-      # Destory all the records from this association.
-      #
-      # See destroy for more info.
-      def destroy_all
-        load_target
-        destroy(@target)
-        reset_target!
-      end
-
-      def create(attrs = {})
-        if attrs.is_a?(Array)
-          attrs.collect { |attr| create(attr) }
-        else
-          create_record(attrs) do |record|
-            yield(record) if block_given?
-            record.save
-          end
-        end
-      end
-
-      def create!(attrs = {})
-        create_record(attrs) do |record|
-          yield(record) if block_given?
-          record.save!
-        end
-      end
-
-      # Returns the size of the collection by executing a SELECT COUNT(*)
-      # query if the collection hasn't been loaded, and calling
-      # <tt>collection.size</tt> if it has.
-      #
-      # If the collection has been already loaded +size+ and +length+ are
-      # equivalent. If not and you are going to need the records anyway
-      # +length+ will take one less query. Otherwise +size+ is more efficient.
-      #
-      # This method is abstract in the sense that it relies on
-      # +count_records+, which is a method descendants have to provide.
-      def size
-        if @owner.new_record? || (loaded? && !@reflection.options[:uniq])
-          @target.size
-        elsif !loaded? && @reflection.options[:group]
-          load_target.size
-        elsif !loaded? && !@reflection.options[:uniq] && @target.is_a?(Array)
-          unsaved_records = @target.select { |r| r.new_record? }
-          unsaved_records.size + count_records
-        else
-          count_records
-        end
-      end
-
-      # Returns the size of the collection calling +size+ on the target.
-      #
-      # If the collection has been already loaded +length+ and +size+ are
-      # equivalent. If not and you are going to need the records anyway this
-      # method will take one less query. Otherwise +size+ is more efficient.
-      def length
-        load_target.size
-      end
-
-      # Equivalent to <tt>collection.size.zero?</tt>. If the collection has
-      # not been already loaded and you are going to fetch the records anyway
-      # it is better to check <tt>collection.length.zero?</tt>.
-      def empty?
-        size.zero?
-      end
-
-      def any?
-        if block_given?
-          method_missing(:any?) { |*block_args| yield(*block_args) }
-        else
-          !empty?
-        end
-      end
-
-      def uniq(collection = self)
-        seen = Set.new
-        collection.inject([]) do |kept, record|
-          unless seen.include?(record.id)
-            kept << record
-            seen << record.id
-          end
-          kept
-        end
-      end
-
-      # Replace this collection with +other_array+
-      # This will perform a diff and delete/add only records that have changed.
-      def replace(other_array)
-        other_array.each { |val| raise_on_type_mismatch(val) }
-
-        load_target
-        other   = other_array.size < 100 ? other_array : other_array.to_set
-        current = @target.size < 100 ? @target : @target.to_set
-
-        transaction do
-          delete(@target.select { |v| !other.include?(v) })
-          concat(other_array.select { |v| !current.include?(v) })
-        end
-      end
-
-      def include?(record)
-        return false unless record.is_a?(@reflection.klass)
-        load_target if @reflection.options[:finder_sql] && !loaded?
-        return @target.include?(record) if loaded?
-        exists?(record)
-      end
-
-      def proxy_respond_to?(method, include_private = false)
-        super || @reflection.klass.respond_to?(method, include_private)
-      end
-
-      protected
-        def construct_find_options!(options)
-        end
-        
-        def load_target
-          if !@owner.new_record? || foreign_key_present
-            begin
-              if !loaded?
-                if @target.is_a?(Array) && @target.any?
-                  @target = find_target + @target.find_all {|t| t.new_record? }
-                else
-                  @target = find_target
-                end
-              end
-            rescue ActiveRecord::RecordNotFound
-              reset
-            end
-          end
-
-          loaded if target
-          target
-        end
-        
-        def method_missing(method, *args)
-          if @target.respond_to?(method) || (!@reflection.klass.respond_to?(method) && Class.respond_to?(method))
-            if block_given?
-              super { |*block_args| yield(*block_args) }
-            else
-              super
-            end
-          elsif @reflection.klass.scopes.include?(method)
-            @reflection.klass.scopes[method].call(self, *args)
-          else          
-            with_scope(construct_scope) do
-              if block_given?
-                @reflection.klass.send(method, *args) { |*block_args| yield(*block_args) }
-              else
-                @reflection.klass.send(method, *args)
-              end
-            end
-          end
-        end
-
-        # overloaded in derived Association classes to provide useful scoping depending on association type.
-        def construct_scope
-          {}
-        end
-
-        def reset_target!
-          @target = Array.new
-        end
-
-        def find_target
-          records =
-            if @reflection.options[:finder_sql]
-              @reflection.klass.find_by_sql(@finder_sql)
-            else
-              find(:all)
-            end
-
-          @reflection.options[:uniq] ? uniq(records) : records
-        end
-
-      private
-
-        def create_record(attrs)
-          attrs.update(@reflection.options[:conditions]) if @reflection.options[:conditions].is_a?(Hash)
-          ensure_owner_is_not_new
-          record = @reflection.klass.send(:with_scope, :create => construct_scope[:create]) do
-            @reflection.build_association(attrs)
-          end
-          if block_given?
-            add_record_to_target_with_callbacks(record) { |*block_args| yield(*block_args) }
-          else
-            add_record_to_target_with_callbacks(record)
-          end
-        end
-
-        def build_record(attrs)
-          attrs.update(@reflection.options[:conditions]) if @reflection.options[:conditions].is_a?(Hash)
-          record = @reflection.build_association(attrs)
-          if block_given?
-            add_record_to_target_with_callbacks(record) { |*block_args| yield(*block_args) }
-          else
-            add_record_to_target_with_callbacks(record)
-          end
-        end
-
-        def add_record_to_target_with_callbacks(record)
-          callback(:before_add, record)
-          yield(record) if block_given?
-          @target ||= [] unless loaded?
-          @target << record unless @reflection.options[:uniq] && @target.include?(record)
-          callback(:after_add, record)
-          record
-        end
-
-        def remove_records(*records)
-          records = flatten_deeper(records)
-          records.each { |record| raise_on_type_mismatch(record) }
-
-          transaction do
-            records.each { |record| callback(:before_remove, record) }
-            old_records = records.reject { |r| r.new_record? }
-            yield(records, old_records)
-            records.each { |record| callback(:after_remove, record) }
-          end
-        end
-
-        def callback(method, record)
-          callbacks_for(method).each do |callback|
-            ActiveSupport::Callbacks::Callback.new(method, callback, record).call(@owner, record)
-          end
-        end
-
-        def callbacks_for(callback_name)
-          full_callback_name = "#{callback_name}_for_#{@reflection.name}"
-          @owner.class.read_inheritable_attribute(full_callback_name.to_sym) || []
-        end   
-        
-        def ensure_owner_is_not_new
-          if @owner.new_record?
-            raise ActiveRecord::RecordNotSaved, "You cannot call create unless the parent is saved"
-          end
-        end
-
-        def fetch_first_or_last_using_find?(args)
-          args.first.kind_of?(Hash) || !(loaded? || @owner.new_record? || @reflection.options[:finder_sql] ||
-                                         @target.any? { |record| record.new_record? } || args.first.kind_of?(Integer))
-        end
-    end
-  end
-end
@@ -1,278 +0,0 @@
-module ActiveRecord
-  module Associations
-    # This is the root class of all association proxies:
-    #
-    #   AssociationProxy
-    #     BelongsToAssociation
-    #       HasOneAssociation
-    #     BelongsToPolymorphicAssociation
-    #     AssociationCollection
-    #       HasAndBelongsToManyAssociation
-    #       HasManyAssociation
-    #         HasManyThroughAssociation
-    #            HasOneThroughAssociation
-    #
-    # Association proxies in Active Record are middlemen between the object that
-    # holds the association, known as the <tt>@owner</tt>, and the actual associated
-    # object, known as the <tt>@target</tt>. The kind of association any proxy is
-    # about is available in <tt>@reflection</tt>. That's an instance of the class
-    # ActiveRecord::Reflection::AssociationReflection.
-    #
-    # For example, given
-    #
-    #   class Blog < ActiveRecord::Base
-    #     has_many :posts
-    #   end
-    #
-    #   blog = Blog.find(:first)
-    #
-    # the association proxy in <tt>blog.posts</tt> has the object in +blog+ as
-    # <tt>@owner</tt>, the collection of its posts as <tt>@target</tt>, and
-    # the <tt>@reflection</tt> object represents a <tt>:has_many</tt> macro.
-    #
-    # This class has most of the basic instance methods removed, and delegates
-    # unknown methods to <tt>@target</tt> via <tt>method_missing</tt>. As a
-    # corner case, it even removes the +class+ method and that's why you get
-    #
-    #   blog.posts.class # => Array
-    #
-    # though the object behind <tt>blog.posts</tt> is not an Array, but an
-    # ActiveRecord::Associations::HasManyAssociation.
-    #
-    # The <tt>@target</tt> object is not \loaded until needed. For example,
-    #
-    #   blog.posts.count
-    #
-    # is computed directly through SQL and does not trigger by itself the
-    # instantiation of the actual post records.
-    class AssociationProxy #:nodoc:
-      alias_method :proxy_respond_to?, :respond_to?
-      alias_method :proxy_extend, :extend
-      delegate :to_param, :to => :proxy_target
-      instance_methods.each { |m| undef_method m unless m =~ /(^__|^nil\?$|^send$|proxy_|^object_id$)/ }
-
-      def initialize(owner, reflection)
-        @owner, @reflection = owner, reflection
-        Array(reflection.options[:extend]).each { |ext| proxy_extend(ext) }
-        reset
-      end
-
-      # Returns the owner of the proxy.
-      def proxy_owner
-        @owner
-      end
-
-      # Returns the reflection object that represents the association handled
-      # by the proxy.
-      def proxy_reflection
-        @reflection
-      end
-
-      # Returns the \target of the proxy, same as +target+.
-      def proxy_target
-        @target
-      end
-
-      # Does the proxy or its \target respond to +symbol+?
-      def respond_to?(*args)
-        proxy_respond_to?(*args) || (load_target && @target.respond_to?(*args))
-      end
-
-      # Forwards <tt>===</tt> explicitly to the \target because the instance method
-      # removal above doesn't catch it. Loads the \target if needed.
-      def ===(other)
-        load_target
-        other === @target
-      end
-
-      # Returns the name of the table of the related class:
-      #
-      #   post.comments.aliased_table_name # => "comments"
-      #
-      def aliased_table_name
-        @reflection.klass.table_name
-      end
-
-      # Returns the SQL string that corresponds to the <tt>:conditions</tt>
-      # option of the macro, if given, or +nil+ otherwise.
-      def conditions
-        @conditions ||= interpolate_sql(@reflection.sanitized_conditions) if @reflection.sanitized_conditions
-      end
-      alias :sql_conditions :conditions
-
-      # Resets the \loaded flag to +false+ and sets the \target to +nil+.
-      def reset
-        @loaded = false
-        @target = nil
-      end
-
-      # Reloads the \target and returns +self+ on success.
-      def reload
-        reset
-        load_target
-        self unless @target.nil?
-      end
-
-      # Has the \target been already \loaded?
-      def loaded?
-        @loaded
-      end
-
-      # Asserts the \target has been loaded setting the \loaded flag to +true+.
-      def loaded
-        @loaded = true
-      end
-
-      # Returns the target of this proxy, same as +proxy_target+.
-      def target
-        @target
-      end
-
-      # Sets the target of this proxy to <tt>\target</tt>, and the \loaded flag to +true+.
-      def target=(target)
-        @target = target
-        loaded
-      end
-
-      # Forwards the call to the target. Loads the \target if needed.
-      def inspect
-        load_target
-        @target.inspect
-      end
-
-      def send(method, *args)
-        if proxy_respond_to?(method)
-          super
-        else
-          load_target
-          @target.send(method, *args)
-        end
-      end
-
-      protected
-        # Does the association have a <tt>:dependent</tt> option?
-        def dependent?
-          @reflection.options[:dependent]
-        end
-
-        # Returns a string with the IDs of +records+ joined with a comma, quoted
-        # if needed. The result is ready to be inserted into a SQL IN clause.
-        #
-        #   quoted_record_ids(records) # => "23,56,58,67"
-        #
-        def quoted_record_ids(records)
-          records.map { |record| record.quoted_id }.join(',')
-        end
-
-        def interpolate_sql(sql, record = nil)
-          @owner.send(:interpolate_sql, sql, record)
-        end
-
-        # Forwards the call to the reflection class.
-        def sanitize_sql(sql, table_name = @reflection.klass.quoted_table_name)
-          @reflection.klass.send(:sanitize_sql, sql, table_name)
-        end
-
-        # Assigns the ID of the owner to the corresponding foreign key in +record+.
-        # If the association is polymorphic the type of the owner is also set.
-        def set_belongs_to_association_for(record)
-          if @reflection.options[:as]
-            record["#{@reflection.options[:as]}_id"]   = @owner.id unless @owner.new_record?
-            record["#{@reflection.options[:as]}_type"] = @owner.class.base_class.name.to_s
-          else
-            unless @owner.new_record?
-              primary_key = @reflection.options[:primary_key] || :id
-              record[@reflection.primary_key_name] = @owner.send(primary_key)
-            end
-          end
-        end
-
-        # Merges into +options+ the ones coming from the reflection.
-        def merge_options_from_reflection!(options)
-          options.reverse_merge!(
-            :group   => @reflection.options[:group],
-            :having  => @reflection.options[:having],
-            :limit   => @reflection.options[:limit],
-            :offset  => @reflection.options[:offset],
-            :joins   => @reflection.options[:joins],
-            :include => @reflection.options[:include],
-            :select  => @reflection.options[:select],
-            :readonly  => @reflection.options[:readonly]
-          )
-        end
-
-        # Forwards +with_scope+ to the reflection.
-        def with_scope(*args, &block)
-          @reflection.klass.send :with_scope, *args, &block
-        end
-
-      private
-        # Forwards any missing method call to the \target.
-        def method_missing(method, *args)
-          if load_target
-            if @target.respond_to?(method)
-              if block_given?
-                @target.send(method, *args)  { |*block_args| yield(*block_args) }
-              else
-                @target.send(method, *args)
-              end
-            else
-              super
-            end
-          end
-        end
-
-        # Loads the \target if needed and returns it.
-        #
-        # This method is abstract in the sense that it relies on +find_target+,
-        # which is expected to be provided by descendants.
-        #
-        # If the \target is already \loaded it is just returned. Thus, you can call
-        # +load_target+ unconditionally to get the \target.
-        #
-        # ActiveRecord::RecordNotFound is rescued within the method, and it is
-        # not reraised. The proxy is \reset and +nil+ is the return value.
-        def load_target
-          return nil unless defined?(@loaded)
-
-          if !loaded? and (!@owner.new_record? || foreign_key_present)
-            @target = find_target
-          end
-
-          @loaded = true
-          @target
-        rescue ActiveRecord::RecordNotFound
-          reset
-        end
-
-        # Can be overwritten by associations that might have the foreign key
-        # available for an association without having the object itself (and
-        # still being a new record). Currently, only +belongs_to+ presents
-        # this scenario (both vanilla and polymorphic).
-        def foreign_key_present
-          false
-        end
-
-        # Raises ActiveRecord::AssociationTypeMismatch unless +record+ is of
-        # the kind of the class of the associated objects. Meant to be used as
-        # a sanity check when you are about to assign an associated record.
-        def raise_on_type_mismatch(record)
-          unless record.is_a?(@reflection.klass) || record.is_a?(@reflection.class_name.constantize)
-            message = "#{@reflection.class_name}(##{@reflection.klass.object_id}) expected, got #{record.class}(##{record.class.object_id})"
-            raise ActiveRecord::AssociationTypeMismatch, message
-          end
-        end
-
-        # Array#flatten has problems with recursive arrays. Going one level
-        # deeper solves the majority of the problems.
-        def flatten_deeper(array)
-          array.collect { |element| (element.respond_to?(:flatten) && !element.is_a?(Hash)) ? element.flatten : element }.flatten
-        end
-
-        # Returns the ID of the owner, quoted if needed.
-        def owner_quoted_id
-          @owner.quoted_id
-        end
-    end
-  end
-end
@@ -1,76 +0,0 @@
-module ActiveRecord
-  module Associations
-    class BelongsToAssociation < AssociationProxy #:nodoc:
-      def create(attributes = {})
-        replace(@reflection.create_association(attributes))
-      end
-
-      def build(attributes = {})
-        replace(@reflection.build_association(attributes))
-      end
-
-      def replace(record)
-        counter_cache_name = @reflection.counter_cache_column
-
-        if record.nil?
-          if counter_cache_name && !@owner.new_record?
-            @reflection.klass.decrement_counter(counter_cache_name, previous_record_id) if @owner[@reflection.primary_key_name]
-          end
-
-          @target = @owner[@reflection.primary_key_name] = nil
-        else
-          raise_on_type_mismatch(record)
-
-          if counter_cache_name && !@owner.new_record?
-            @reflection.klass.increment_counter(counter_cache_name, record.id)
-            @reflection.klass.decrement_counter(counter_cache_name, @owner[@reflection.primary_key_name]) if @owner[@reflection.primary_key_name]
-          end
-
-          @target = (AssociationProxy === record ? record.target : record)
-          @owner[@reflection.primary_key_name] = record_id(record) unless record.new_record?
-          @updated = true
-        end
-
-        loaded
-        record
-      end
-      
-      def updated?
-        @updated
-      end
-      
-      private
-        def find_target
-          find_method = if @reflection.options[:primary_key]
-                          "find_by_#{@reflection.options[:primary_key]}"
-                        else
-                          "find"
-                        end
-          @reflection.klass.send(find_method,
-            @owner[@reflection.primary_key_name],
-            :select     => @reflection.options[:select],
-            :conditions => conditions,
-            :include    => @reflection.options[:include],
-            :readonly   => @reflection.options[:readonly]
-          ) if @owner[@reflection.primary_key_name]
-        end
-
-        def foreign_key_present
-          !@owner[@reflection.primary_key_name].nil?
-        end
-
-        def record_id(record)
-          record.send(@reflection.options[:primary_key] || :id)
-        end
-
-        def previous_record_id
-          @previous_record_id ||= if @reflection.options[:primary_key]
-                                    previous_record = @owner.send(@reflection.name)
-                                    previous_record.nil? ? nil : previous_record.id
-                                  else
-                                    @owner[@reflection.primary_key_name]
-                                  end
-        end
-    end
-  end
-end
@@ -1,53 +0,0 @@
-module ActiveRecord
-  module Associations
-    class BelongsToPolymorphicAssociation < AssociationProxy #:nodoc:
-      def replace(record)
-        if record.nil?
-          @target = @owner[@reflection.primary_key_name] = @owner[@reflection.options[:foreign_type]] = nil
-        else
-          @target = (AssociationProxy === record ? record.target : record)
-
-          @owner[@reflection.primary_key_name] = record_id(record)
-          @owner[@reflection.options[:foreign_type]] = record.class.base_class.name.to_s
-
-          @updated = true
-        end
-
-        loaded
-        record
-      end
-
-      def updated?
-        @updated
-      end
-
-      private
-        def find_target
-          return nil if association_class.nil?
-
-          if @reflection.options[:conditions]
-            association_class.find(
-              @owner[@reflection.primary_key_name],
-              :select     => @reflection.options[:select],
-              :conditions => conditions,
-              :include    => @reflection.options[:include]
-            )
-          else
-            association_class.find(@owner[@reflection.primary_key_name], :select => @reflection.options[:select], :include => @reflection.options[:include])
-          end
-        end
-
-        def foreign_key_present
-          !@owner[@reflection.primary_key_name].nil?
-        end
-
-        def record_id(record)
-          record.send(@reflection.options[:primary_key] || :id)
-        end
-
-        def association_class
-          @owner[@reflection.options[:foreign_type]] ? @owner[@reflection.options[:foreign_type]].constantize : nil
-        end
-    end
-  end
-end
@@ -1,143 +0,0 @@
-module ActiveRecord
-  module Associations
-    class HasAndBelongsToManyAssociation < AssociationCollection #:nodoc:
-      def initialize(owner, reflection)
-        super
-        @primary_key_list = {}
-      end
-
-      def create(attributes = {})
-        create_record(attributes) { |record| insert_record(record) }
-      end
-
-      def create!(attributes = {})
-        create_record(attributes) { |record| insert_record(record, true) }
-      end
-
-      def columns
-        @reflection.columns(@reflection.options[:join_table], "#{@reflection.options[:join_table]} Columns")
-      end
-
-      def reset_column_information
-        @reflection.reset_column_information
-      end
-
-      def has_primary_key?
-        return @has_primary_key unless @has_primary_key.nil?
-        @has_primary_key = (@owner.connection.supports_primary_key? &&
-          @owner.connection.primary_key(@reflection.options[:join_table]))
-      end
-
-      protected
-        def construct_find_options!(options)
-          options[:joins]      = @join_sql
-          options[:readonly]   = finding_with_ambiguous_select?(options[:select] || @reflection.options[:select])
-          options[:select]   ||= (@reflection.options[:select] || '*')
-        end
-        
-        def count_records
-          load_target.size
-        end
-
-        def insert_record(record, force = true, validate = true)
-          if has_primary_key?
-            raise ActiveRecord::ConfigurationError,
-              "Primary key is not allowed in a has_and_belongs_to_many join table (#{@reflection.options[:join_table]})."
-          end
-
-          if record.new_record?
-            if force
-              record.save!
-            else
-              return false unless record.save(validate)
-            end
-          end
-
-          if @reflection.options[:insert_sql]
-            @owner.connection.insert(interpolate_sql(@reflection.options[:insert_sql], record))
-          else
-            attributes = columns.inject({}) do |attrs, column|
-              case column.name.to_s
-                when @reflection.primary_key_name.to_s
-                  attrs[column.name] = owner_quoted_id
-                when @reflection.association_foreign_key.to_s
-                  attrs[column.name] = record.quoted_id
-                else
-                  if record.has_attribute?(column.name)
-                    value = @owner.send(:quote_value, record[column.name], column)
-                    attrs[column.name] = value unless value.nil?
-                  end
-              end
-              attrs
-            end
-
-            sql =
-              "INSERT INTO #{@owner.connection.quote_table_name @reflection.options[:join_table]} (#{@owner.send(:quoted_column_names, attributes).join(', ')}) " +
-              "VALUES (#{attributes.values.join(', ')})"
-
-            @owner.connection.insert(sql)
-          end
-
-          return true
-        end
-
-        def delete_records(records)
-          if sql = @reflection.options[:delete_sql]
-            records.each { |record| @owner.connection.delete(interpolate_sql(sql, record)) }
-          else
-            ids = quoted_record_ids(records)
-            sql = "DELETE FROM #{@owner.connection.quote_table_name @reflection.options[:join_table]} WHERE #{@reflection.primary_key_name} = #{owner_quoted_id} AND #{@reflection.association_foreign_key} IN (#{ids})"
-            @owner.connection.delete(sql)
-          end
-        end
-
-        def construct_sql
-          if @reflection.options[:finder_sql]
-            @finder_sql = interpolate_sql(@reflection.options[:finder_sql])
-          else
-            @finder_sql = "#{@owner.connection.quote_table_name @reflection.options[:join_table]}.#{@reflection.primary_key_name} = #{owner_quoted_id} "
-            @finder_sql << " AND (#{conditions})" if conditions
-          end
-
-          @join_sql = "INNER JOIN #{@owner.connection.quote_table_name @reflection.options[:join_table]} ON #{@reflection.quoted_table_name}.#{@reflection.klass.primary_key} = #{@owner.connection.quote_table_name @reflection.options[:join_table]}.#{@reflection.association_foreign_key}"
-
-          if @reflection.options[:counter_sql]
-            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
-          elsif @reflection.options[:finder_sql]
-            # replace the SELECT clause with COUNT(*), preserving any hints within /* ... */
-            @reflection.options[:counter_sql] = @reflection.options[:finder_sql].sub(/SELECT (\/\*.*?\*\/ )?(.*)\bFROM\b/im) { "SELECT #{$1}COUNT(*) FROM" }
-            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
-          else
-            @counter_sql = @finder_sql
-          end
-        end
-
-        def construct_scope
-          { :find => {  :conditions => @finder_sql,
-                        :joins => @join_sql,
-                        :readonly => false,
-                        :order => @reflection.options[:order],
-                        :include => @reflection.options[:include],
-                        :limit => @reflection.options[:limit] } }
-        end
-
-        # Join tables with additional columns on top of the two foreign keys must be considered ambiguous unless a select
-        # clause has been explicitly defined. Otherwise you can get broken records back, if, for example, the join column also has
-        # an id column. This will then overwrite the id column of the records coming back.
-        def finding_with_ambiguous_select?(select_clause)
-          !select_clause && columns.size != 2
-        end
-
-      private
-        def create_record(attributes, &block)
-          # Can't use Base.create because the foreign key may be a protected attribute.
-          ensure_owner_is_not_new
-          if attributes.is_a?(Array)
-            attributes.collect { |attr| create(attr) }
-          else
-            build_record(attributes, &block)
-          end
-        end
-    end
-  end
-end
@@ -1,122 +0,0 @@
-module ActiveRecord
-  module Associations
-    # This is the proxy that handles a has many association.
-    #
-    # If the association has a <tt>:through</tt> option further specialization
-    # is provided by its child HasManyThroughAssociation.
-    class HasManyAssociation < AssociationCollection #:nodoc:
-      protected
-        def owner_quoted_id
-          if @reflection.options[:primary_key]
-            quote_value(@owner.send(@reflection.options[:primary_key]))
-          else
-            @owner.quoted_id
-          end
-        end
-
-        # Returns the number of records in this collection.
-        #
-        # If the association has a counter cache it gets that value. Otherwise
-        # it will attempt to do a count via SQL, bounded to <tt>:limit</tt> if
-        # there's one.  Some configuration options like :group make it impossible
-        # to do a SQL count, in those cases the array count will be used.
-        #
-        # That does not depend on whether the collection has already been loaded
-        # or not. The +size+ method is the one that takes the loaded flag into
-        # account and delegates to +count_records+ if needed.
-        #
-        # If the collection is empty the target is set to an empty array and
-        # the loaded flag is set to true as well.
-        def count_records
-          count = if has_cached_counter?
-            @owner.send(:read_attribute, cached_counter_attribute_name)
-          elsif @reflection.options[:counter_sql]
-            @reflection.klass.count_by_sql(@counter_sql)
-          else
-            @reflection.klass.count(:conditions => @counter_sql, :include => @reflection.options[:include])
-          end
-
-          # If there's nothing in the database and @target has no new records
-          # we are certain the current target is an empty array. This is a
-          # documented side-effect of the method that may avoid an extra SELECT.
-          @target ||= [] and loaded if count == 0
-          
-          if @reflection.options[:limit]
-            count = [ @reflection.options[:limit], count ].min
-          end
-          
-          return count
-        end
-
-        def has_cached_counter?
-          @owner.attribute_present?(cached_counter_attribute_name)
-        end
-
-        def cached_counter_attribute_name
-          "#{@reflection.name}_count"
-        end
-
-        def insert_record(record, force = false, validate = true)
-          set_belongs_to_association_for(record)
-          force ? record.save! : record.save(validate)
-        end
-
-        # Deletes the records according to the <tt>:dependent</tt> option.
-        def delete_records(records)
-          case @reflection.options[:dependent]
-            when :destroy
-              records.each { |r| r.destroy }
-            when :delete_all
-              @reflection.klass.delete(records.map { |record| record.id })
-            else
-              ids = quoted_record_ids(records)
-              @reflection.klass.update_all(
-                "#{@reflection.primary_key_name} = NULL", 
-                "#{@reflection.primary_key_name} = #{owner_quoted_id} AND #{@reflection.klass.primary_key} IN (#{ids})"
-              )
-              @owner.class.update_counters(@owner.id, cached_counter_attribute_name => -records.size) if has_cached_counter?
-          end
-        end
-
-        def target_obsolete?
-          false
-        end
-
-        def construct_sql
-          case
-            when @reflection.options[:finder_sql]
-              @finder_sql = interpolate_sql(@reflection.options[:finder_sql])
-
-            when @reflection.options[:as]
-              @finder_sql = 
-                "#{@reflection.quoted_table_name}.#{@reflection.options[:as]}_id = #{owner_quoted_id} AND " +
-                "#{@reflection.quoted_table_name}.#{@reflection.options[:as]}_type = #{@owner.class.quote_value(@owner.class.base_class.name.to_s)}"
-              @finder_sql << " AND (#{conditions})" if conditions
-            
-            else
-              @finder_sql = "#{@reflection.quoted_table_name}.#{@reflection.primary_key_name} = #{owner_quoted_id}"
-              @finder_sql << " AND (#{conditions})" if conditions
-          end
-
-          if @reflection.options[:counter_sql]
-            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
-          elsif @reflection.options[:finder_sql]
-            # replace the SELECT clause with COUNT(*), preserving any hints within /* ... */
-            @reflection.options[:counter_sql] = @reflection.options[:finder_sql].sub(/SELECT (\/\*.*?\*\/ )?(.*)\bFROM\b/im) { "SELECT #{$1}COUNT(*) FROM" }
-            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
-          else
-            @counter_sql = @finder_sql
-          end
-        end
-
-        def construct_scope
-          create_scoping = {}
-          set_belongs_to_association_for(create_scoping)
-          {
-            :find => { :conditions => @finder_sql, :readonly => false, :order => @reflection.options[:order], :limit => @reflection.options[:limit], :include => @reflection.options[:include]},
-            :create => create_scoping
-          }
-        end
-    end
-  end
-end
@@ -1,266 +0,0 @@
-module ActiveRecord
-  module Associations
-    class HasManyThroughAssociation < HasManyAssociation #:nodoc:
-      def initialize(owner, reflection)
-        reflection.check_validity!
-        super
-      end
-
-      alias_method :new, :build
-
-      def create!(attrs = nil)
-        transaction do
-          self << (object = attrs ? @reflection.klass.send(:with_scope, :create => attrs) { @reflection.create_association! } : @reflection.create_association!)
-          object
-        end
-      end
-
-      def create(attrs = nil)
-        transaction do
-          object = if attrs
-            @reflection.klass.send(:with_scope, :create => attrs) {
-              @reflection.create_association
-            }
-          else
-            @reflection.create_association
-          end
-          raise_on_type_mismatch(object)
-          add_record_to_target_with_callbacks(object) do |r|
-            insert_record(object, false)
-          end
-          object
-        end
-      end
-
-      # Returns the size of the collection by executing a SELECT COUNT(*) query if the collection hasn't been loaded and
-      # calling collection.size if it has. If it's more likely than not that the collection does have a size larger than zero,
-      # and you need to fetch that collection afterwards, it'll take one fewer SELECT query if you use #length.
-      def size
-        return @owner.send(:read_attribute, cached_counter_attribute_name) if has_cached_counter?
-        return @target.size if loaded?
-        return count
-      end
-      
-      protected
-        def target_reflection_has_associated_record?
-          if @reflection.through_reflection.macro == :belongs_to && @owner[@reflection.through_reflection.primary_key_name].blank?
-            false
-          else
-            true
-          end
-        end
-
-        def construct_find_options!(options)
-          options[:select]  = construct_select(options[:select])
-          options[:from]  ||= construct_from
-          options[:joins]   = construct_joins(options[:joins])
-          options[:include] = @reflection.source_reflection.options[:include] if options[:include].nil? && @reflection.source_reflection.options[:include]
-        end
-        
-        def insert_record(record, force = true, validate = true)
-          if record.new_record?
-            if force
-              record.save!
-            else
-              return false unless record.save(validate)
-            end
-          end
-          through_reflection = @reflection.through_reflection
-          klass = through_reflection.klass
-          @owner.send(@reflection.through_reflection.name).proxy_target << klass.send(:with_scope, :create => construct_join_attributes(record)) { through_reflection.create_association! }
-        end
-
-        # TODO - add dependent option support
-        def delete_records(records)
-          klass = @reflection.through_reflection.klass
-          records.each do |associate|
-            klass.delete_all(construct_join_attributes(associate))
-          end
-        end
-
-        def find_target
-          return [] unless target_reflection_has_associated_record?
-          @reflection.klass.find(:all,
-            :select     => construct_select,
-            :conditions => construct_conditions,
-            :from       => construct_from,
-            :joins      => construct_joins,
-            :order      => @reflection.options[:order],
-            :limit      => @reflection.options[:limit],
-            :group      => @reflection.options[:group],
-            :readonly   => @reflection.options[:readonly],
-            :include    => @reflection.options[:include] || @reflection.source_reflection.options[:include]
-          )
-        end
-
-        # Construct attributes for associate pointing to owner.
-        def construct_owner_attributes(reflection)
-          if as = reflection.options[:as]
-            { "#{as}_id" => @owner.id,
-              "#{as}_type" => @owner.class.base_class.name.to_s }
-          else
-            { reflection.primary_key_name => @owner.id }
-          end
-        end
-
-        # Construct attributes for :through pointing to owner and associate.
-        def construct_join_attributes(associate)
-          # TODO: revist this to allow it for deletion, supposing dependent option is supported
-          raise ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection.new(@owner, @reflection) if [:has_one, :has_many].include?(@reflection.source_reflection.macro)
-          join_attributes = construct_owner_attributes(@reflection.through_reflection).merge(@reflection.source_reflection.primary_key_name => associate.id)
-          if @reflection.options[:source_type]
-            join_attributes.merge!(@reflection.source_reflection.options[:foreign_type] => associate.class.base_class.name.to_s)
-          end
-          join_attributes
-        end
-
-        # Associate attributes pointing to owner, quoted.
-        def construct_quoted_owner_attributes(reflection)
-          if as = reflection.options[:as]
-            { "#{as}_id" => owner_quoted_id,
-              "#{as}_type" => reflection.klass.quote_value(
-                @owner.class.base_class.name.to_s,
-                reflection.klass.columns_hash["#{as}_type"]) }
-          elsif reflection.macro == :belongs_to
-            { reflection.klass.primary_key => @owner[reflection.primary_key_name] }
-          else
-            { reflection.primary_key_name => owner_quoted_id }
-          end
-        end
-
-        # Build SQL conditions from attributes, qualified by table name.
-        def construct_conditions
-          table_name = @reflection.through_reflection.quoted_table_name
-          conditions = construct_quoted_owner_attributes(@reflection.through_reflection).map do |attr, value|
-            "#{table_name}.#{attr} = #{value}"
-          end
-          conditions << sql_conditions if sql_conditions
-          "(" + conditions.join(') AND (') + ")"
-        end
-
-        def construct_from
-          @reflection.quoted_table_name
-        end
-
-        def construct_select(custom_select = nil)
-          distinct = "DISTINCT " if @reflection.options[:uniq]
-          selected = custom_select || @reflection.options[:select] || "#{distinct}#{@reflection.quoted_table_name}.*"
-        end
-
-        def construct_joins(custom_joins = nil)
-          polymorphic_join = nil
-          if @reflection.source_reflection.macro == :belongs_to
-            reflection_primary_key = @reflection.klass.primary_key
-            source_primary_key     = @reflection.source_reflection.primary_key_name
-            if @reflection.options[:source_type]
-              polymorphic_join = "AND %s.%s = %s" % [
-                @reflection.through_reflection.quoted_table_name, "#{@reflection.source_reflection.options[:foreign_type]}",
-                @owner.class.quote_value(@reflection.options[:source_type])
-              ]
-            end
-          else
-            reflection_primary_key = @reflection.source_reflection.primary_key_name
-            source_primary_key     = @reflection.through_reflection.klass.primary_key
-            if @reflection.source_reflection.options[:as]
-              polymorphic_join = "AND %s.%s = %s" % [
-                @reflection.quoted_table_name, "#{@reflection.source_reflection.options[:as]}_type",
-                @owner.class.quote_value(@reflection.through_reflection.klass.name)
-              ]
-            end
-          end
-
-          "INNER JOIN %s ON %s.%s = %s.%s %s #{@reflection.options[:joins]} #{custom_joins}" % [
-            @reflection.through_reflection.quoted_table_name,
-            @reflection.quoted_table_name, reflection_primary_key,
-            @reflection.through_reflection.quoted_table_name, source_primary_key,
-            polymorphic_join
-          ]
-        end
-
-        def construct_scope
-          { :create => construct_owner_attributes(@reflection),
-            :find   => { :from        => construct_from,
-                         :conditions  => construct_conditions,
-                         :joins       => construct_joins,
-                         :include     => @reflection.options[:include],
-                         :select      => construct_select,
-                         :order       => @reflection.options[:order],
-                         :limit       => @reflection.options[:limit],
-                         :readonly    => @reflection.options[:readonly],
-             } }
-        end
-
-        def construct_sql
-          case
-            when @reflection.options[:finder_sql]
-              @finder_sql = interpolate_sql(@reflection.options[:finder_sql])
-
-              @finder_sql = "#{@reflection.quoted_table_name}.#{@reflection.primary_key_name} = #{owner_quoted_id}"
-              @finder_sql << " AND (#{conditions})" if conditions
-            else
-              @finder_sql = construct_conditions
-          end
-
-          if @reflection.options[:counter_sql]
-            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
-          elsif @reflection.options[:finder_sql]
-            # replace the SELECT clause with COUNT(*), preserving any hints within /* ... */
-            @reflection.options[:counter_sql] = @reflection.options[:finder_sql].sub(/SELECT (\/\*.*?\*\/ )?(.*)\bFROM\b/im) { "SELECT #{$1}COUNT(*) FROM" }
-            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
-          else
-            @counter_sql = @finder_sql
-          end
-        end
-
-        def conditions
-          @conditions = build_conditions unless defined?(@conditions)
-          @conditions
-        end
-
-        def build_conditions
-          association_conditions = @reflection.options[:conditions]
-          through_conditions = build_through_conditions
-          source_conditions = @reflection.source_reflection.options[:conditions]
-          uses_sti = !@reflection.through_reflection.klass.descends_from_active_record?
-
-          if association_conditions || through_conditions || source_conditions || uses_sti
-            all = []
-
-            [association_conditions, source_conditions].each do |conditions|
-              all << interpolate_sql(sanitize_sql(conditions)) if conditions
-            end
-
-            all << through_conditions  if through_conditions
-            all << build_sti_condition if uses_sti
-
-            all.map { |sql| "(#{sql})" } * ' AND '
-          end
-        end
-
-        def build_through_conditions
-          conditions = @reflection.through_reflection.options[:conditions]
-          if conditions.is_a?(Hash)
-            interpolate_sql(sanitize_sql(conditions)).gsub(
-              @reflection.quoted_table_name,
-              @reflection.through_reflection.quoted_table_name)
-          elsif conditions
-            interpolate_sql(sanitize_sql(conditions))
-          end
-        end
-        
-        def build_sti_condition
-          @reflection.through_reflection.klass.send(:type_condition)
-        end
-
-        alias_method :sql_conditions, :conditions
-
-        def has_cached_counter?
-          @owner.attribute_present?(cached_counter_attribute_name)
-        end
-
-        def cached_counter_attribute_name
-          "#{@reflection.name}_count"
-        end
-    end
-  end
-end
@@ -1,133 +0,0 @@
-module ActiveRecord
-  module Associations
-    class HasOneAssociation < BelongsToAssociation #:nodoc:
-      def initialize(owner, reflection)
-        super
-        construct_sql
-      end
-
-      def create(attrs = {}, replace_existing = true)
-        new_record(replace_existing) do |reflection|
-          attrs = merge_with_conditions(attrs)
-          reflection.create_association(attrs)
-        end
-      end
-
-      def create!(attrs = {}, replace_existing = true)
-        new_record(replace_existing) do |reflection|
-          attrs = merge_with_conditions(attrs)
-          reflection.create_association!(attrs)
-        end
-      end
-
-      def build(attrs = {}, replace_existing = true)
-        new_record(replace_existing) do |reflection|
-          attrs = merge_with_conditions(attrs)
-          reflection.build_association(attrs)
-        end
-      end
-
-      def replace(obj, dont_save = false)
-        load_target
-
-        unless @target.nil? || @target == obj
-          if dependent? && !dont_save
-            case @reflection.options[:dependent]
-            when :delete
-              @target.delete unless @target.new_record?
-              @owner.clear_association_cache
-            when :destroy
-              @target.destroy unless @target.new_record?
-              @owner.clear_association_cache
-            when :nullify
-              @target[@reflection.primary_key_name] = nil
-              @target.save unless @owner.new_record? || @target.new_record?
-            end
-          else
-            @target[@reflection.primary_key_name] = nil
-            @target.save unless @owner.new_record? || @target.new_record?
-          end
-        end
-
-        if obj.nil?
-          @target = nil
-        else
-          raise_on_type_mismatch(obj)
-          set_belongs_to_association_for(obj)
-          @target = (AssociationProxy === obj ? obj.target : obj)
-        end
-
-        @loaded = true
-
-        unless @owner.new_record? or obj.nil? or dont_save
-          return (obj.save ? self : false)
-        else
-          return (obj.nil? ? nil : self)
-        end
-      end
-
-      protected
-        def owner_quoted_id
-          if @reflection.options[:primary_key]
-            @owner.class.quote_value(@owner.send(@reflection.options[:primary_key]))
-          else
-            @owner.quoted_id
-          end
-        end
-
-      private
-        def find_target
-          @reflection.klass.find(:first, 
-            :conditions => @finder_sql,
-            :select     => @reflection.options[:select],
-            :order      => @reflection.options[:order], 
-            :include    => @reflection.options[:include],
-            :readonly   => @reflection.options[:readonly]
-          )
-        end
-
-        def construct_sql
-          case
-            when @reflection.options[:as]
-              @finder_sql = 
-                "#{@reflection.quoted_table_name}.#{@reflection.options[:as]}_id = #{owner_quoted_id} AND " +
-                "#{@reflection.quoted_table_name}.#{@reflection.options[:as]}_type = #{@owner.class.quote_value(@owner.class.base_class.name.to_s)}"
-            else
-              @finder_sql = "#{@reflection.quoted_table_name}.#{@reflection.primary_key_name} = #{owner_quoted_id}"
-          end
-          @finder_sql << " AND (#{conditions})" if conditions
-        end
-        
-        def construct_scope
-          create_scoping = {}
-          set_belongs_to_association_for(create_scoping)
-          { :create => create_scoping }
-        end
-
-        def new_record(replace_existing)
-          # Make sure we load the target first, if we plan on replacing the existing
-          # instance. Otherwise, if the target has not previously been loaded
-          # elsewhere, the instance we create will get orphaned.
-          load_target if replace_existing
-          record = @reflection.klass.send(:with_scope, :create => construct_scope[:create]) do
-            yield @reflection
-          end
-
-          if replace_existing
-            replace(record, true) 
-          else
-            record[@reflection.primary_key_name] = @owner.id unless @owner.new_record?
-            self.target = record
-          end
-
-          record
-        end
-
-        def merge_with_conditions(attrs={})
-          attrs ||= {}
-          attrs.update(@reflection.options[:conditions]) if @reflection.options[:conditions].is_a?(Hash)
-          attrs
-        end
-    end
-  end
-end
@@ -1,37 +0,0 @@
-module ActiveRecord
-  module Associations
-    class HasOneThroughAssociation < HasManyThroughAssociation
-
-      def create_through_record(new_value) #nodoc:
-        klass = @reflection.through_reflection.klass
-
-        current_object = @owner.send(@reflection.through_reflection.name)
-
-        if current_object
-          new_value ? current_object.update_attributes(construct_join_attributes(new_value)) : current_object.destroy
-        elsif new_value
-          if @owner.new_record?
-            self.target = new_value
-            through_association = @owner.send(:association_instance_get, @reflection.through_reflection.name)
-            through_association.build(construct_join_attributes(new_value))
-          else
-            @owner.send(@reflection.through_reflection.name, klass.create(construct_join_attributes(new_value)))
-          end
-        end
-      end
-
-    private
-      def find(*args)
-        super(args.merge(:limit => 1))
-      end
-
-      def find_target
-        super.first
-      end
-
-      def reset_target!
-        @target = nil
-      end
-    end
-  end
-end
@@ -1,388 +0,0 @@
-module ActiveRecord
-  module AttributeMethods #:nodoc:
-    DEFAULT_SUFFIXES = %w(= ? _before_type_cast)
-    ATTRIBUTE_TYPES_CACHED_BY_DEFAULT = [:datetime, :timestamp, :time, :date]
-
-    def self.included(base)
-      base.extend ClassMethods
-      base.attribute_method_suffix(*DEFAULT_SUFFIXES)
-      base.cattr_accessor :attribute_types_cached_by_default, :instance_writer => false
-      base.attribute_types_cached_by_default = ATTRIBUTE_TYPES_CACHED_BY_DEFAULT
-      base.cattr_accessor :time_zone_aware_attributes, :instance_writer => false
-      base.time_zone_aware_attributes = false
-      base.class_inheritable_accessor :skip_time_zone_conversion_for_attributes, :instance_writer => false
-      base.skip_time_zone_conversion_for_attributes = []
-    end
-
-    # Declare and check for suffixed attribute methods.
-    module ClassMethods
-      # Declares a method available for all attributes with the given suffix.
-      # Uses +method_missing+ and <tt>respond_to?</tt> to rewrite the method
-      #
-      #   #{attr}#{suffix}(*args, &block)
-      #
-      # to
-      #
-      #   attribute#{suffix}(#{attr}, *args, &block)
-      #
-      # An <tt>attribute#{suffix}</tt> instance method must exist and accept at least
-      # the +attr+ argument.
-      #
-      # For example:
-      #
-      #   class Person < ActiveRecord::Base
-      #     attribute_method_suffix '_changed?'
-      #
-      #     private
-      #       def attribute_changed?(attr)
-      #         ...
-      #       end
-      #   end
-      #
-      #   person = Person.find(1)
-      #   person.name_changed?    # => false
-      #   person.name = 'Hubert'
-      #   person.name_changed?    # => true
-      def attribute_method_suffix(*suffixes)
-        attribute_method_suffixes.concat suffixes
-        rebuild_attribute_method_regexp
-      end
-
-      # Returns MatchData if method_name is an attribute method.
-      def match_attribute_method?(method_name)
-        rebuild_attribute_method_regexp unless defined?(@@attribute_method_regexp) && @@attribute_method_regexp
-        @@attribute_method_regexp.match(method_name)
-      end
-
-
-      # Contains the names of the generated attribute methods.
-      def generated_methods #:nodoc:
-        @generated_methods ||= Set.new
-      end
-      
-      def generated_methods?
-        !generated_methods.empty?
-      end
-      
-      # Generates all the attribute related methods for columns in the database
-      # accessors, mutators and query methods.
-      def define_attribute_methods
-        return if generated_methods?
-        columns_hash.each do |name, column|
-          unless instance_method_already_implemented?(name)
-            if self.serialized_attributes[name]
-              define_read_method_for_serialized_attribute(name)
-            elsif create_time_zone_conversion_attribute?(name, column)
-              define_read_method_for_time_zone_conversion(name)
-            else
-              define_read_method(name.to_sym, name, column)
-            end
-          end
-
-          unless instance_method_already_implemented?("#{name}=")
-            if create_time_zone_conversion_attribute?(name, column)
-              define_write_method_for_time_zone_conversion(name)
-            else  
-              define_write_method(name.to_sym)
-            end
-          end
-
-          unless instance_method_already_implemented?("#{name}?")
-            define_question_method(name)
-          end
-        end
-      end
-
-      # Checks whether the method is defined in the model or any of its subclasses
-      # that also derive from Active Record. Raises DangerousAttributeError if the
-      # method is defined by Active Record though.
-      def instance_method_already_implemented?(method_name)
-        method_name = method_name.to_s
-        return true if method_name =~ /^id(=$|\?$|$)/
-        @_defined_class_methods         ||= ancestors.first(ancestors.index(ActiveRecord::Base)).sum([]) { |m| m.public_instance_methods(false) | m.private_instance_methods(false) | m.protected_instance_methods(false) }.map(&:to_s).to_set
-        @@_defined_activerecord_methods ||= (ActiveRecord::Base.public_instance_methods(false) | ActiveRecord::Base.private_instance_methods(false) | ActiveRecord::Base.protected_instance_methods(false)).map(&:to_s).to_set
-        raise DangerousAttributeError, "#{method_name} is defined by ActiveRecord" if @@_defined_activerecord_methods.include?(method_name)
-        @_defined_class_methods.include?(method_name)
-      end
-      
-      alias :define_read_methods :define_attribute_methods
-
-      # +cache_attributes+ allows you to declare which converted attribute values should
-      # be cached. Usually caching only pays off for attributes with expensive conversion
-      # methods, like time related columns (e.g. +created_at+, +updated_at+).
-      def cache_attributes(*attribute_names)
-        attribute_names.each {|attr| cached_attributes << attr.to_s}
-      end
-
-      # Returns the attributes which are cached. By default time related columns
-      # with datatype <tt>:datetime, :timestamp, :time, :date</tt> are cached.
-      def cached_attributes
-        @cached_attributes ||=
-          columns.select{|c| attribute_types_cached_by_default.include?(c.type)}.map(&:name).to_set
-      end
-
-      # Returns +true+ if the provided attribute is being cached.
-      def cache_attribute?(attr_name)
-        cached_attributes.include?(attr_name)
-      end
-
-      private
-        # Suffixes a, ?, c become regexp /(a|\?|c)$/
-        def rebuild_attribute_method_regexp
-          suffixes = attribute_method_suffixes.map { |s| Regexp.escape(s) }
-          @@attribute_method_regexp = /(#{suffixes.join('|')})$/.freeze
-        end
-
-        # Default to =, ?, _before_type_cast
-        def attribute_method_suffixes
-          @@attribute_method_suffixes ||= []
-        end
-        
-        def create_time_zone_conversion_attribute?(name, column)
-          time_zone_aware_attributes && !skip_time_zone_conversion_for_attributes.include?(name.to_sym) && [:datetime, :timestamp].include?(column.type)
-        end
-        
-        # Define an attribute reader method.  Cope with nil column.
-        def define_read_method(symbol, attr_name, column)
-          cast_code = column.type_cast_code('v') if column
-          access_code = cast_code ? "(v=@attributes['#{attr_name}']) && #{cast_code}" : "@attributes['#{attr_name}']"
-
-          unless attr_name.to_s == self.primary_key.to_s
-            access_code = access_code.insert(0, "missing_attribute('#{attr_name}', caller) unless @attributes.has_key?('#{attr_name}'); ")
-          end
-          
-          if cache_attribute?(attr_name)
-            access_code = "@attributes_cache['#{attr_name}'] ||= (#{access_code})"
-          end
-          evaluate_attribute_method attr_name, "def #{symbol}; #{access_code}; end"
-        end
-
-        # Define read method for serialized attribute.
-        def define_read_method_for_serialized_attribute(attr_name)
-          evaluate_attribute_method attr_name, "def #{attr_name}; unserialize_attribute('#{attr_name}'); end"
-        end
-        
-        # Defined for all +datetime+ and +timestamp+ attributes when +time_zone_aware_attributes+ are enabled.
-        # This enhanced read method automatically converts the UTC time stored in the database to the time zone stored in Time.zone.
-        def define_read_method_for_time_zone_conversion(attr_name)
-          method_body = <<-EOV
-            def #{attr_name}(reload = false)
-              cached = @attributes_cache['#{attr_name}']
-              return cached if cached && !reload
-              time = read_attribute('#{attr_name}')
-              @attributes_cache['#{attr_name}'] = time.acts_like?(:time) ? time.in_time_zone : time
-            end
-          EOV
-          evaluate_attribute_method attr_name, method_body
-        end
-
-        # Defines a predicate method <tt>attr_name?</tt>.
-        def define_question_method(attr_name)
-          evaluate_attribute_method attr_name, "def #{attr_name}?; query_attribute('#{attr_name}'); end", "#{attr_name}?"
-        end
-
-        def define_write_method(attr_name)
-          evaluate_attribute_method attr_name, "def #{attr_name}=(new_value);write_attribute('#{attr_name}', new_value);end", "#{attr_name}="
-        end
-        
-        # Defined for all +datetime+ and +timestamp+ attributes when +time_zone_aware_attributes+ are enabled.
-        # This enhanced write method will automatically convert the time passed to it to the zone stored in Time.zone.
-        def define_write_method_for_time_zone_conversion(attr_name)
-          method_body = <<-EOV
-            def #{attr_name}=(time)
-              unless time.acts_like?(:time)
-                time = time.is_a?(String) ? Time.zone.parse(time) : time.to_time rescue time
-              end
-              time = time.in_time_zone rescue nil if time
-              write_attribute(:#{attr_name}, time)
-            end
-          EOV
-          evaluate_attribute_method attr_name, method_body, "#{attr_name}="
-        end
-
-        # Evaluate the definition for an attribute related method
-        def evaluate_attribute_method(attr_name, method_definition, method_name=attr_name)
-
-          unless method_name.to_s == primary_key.to_s
-            generated_methods << method_name
-          end
-
-          begin
-            class_eval(method_definition, __FILE__, __LINE__)
-          rescue SyntaxError => err
-            generated_methods.delete(attr_name)
-            if logger
-              logger.warn "Exception occurred during reader method compilation."
-              logger.warn "Maybe #{attr_name} is not a valid Ruby identifier?"
-              logger.warn err.message
-            end
-          end
-        end
-    end #  ClassMethods
-
-
-    # Allows access to the object attributes, which are held in the <tt>@attributes</tt> hash, as though they
-    # were first-class methods. So a Person class with a name attribute can use Person#name and
-    # Person#name= and never directly use the attributes hash -- except for multiple assigns with
-    # ActiveRecord#attributes=. A Milestone class can also ask Milestone#completed? to test that
-    # the completed attribute is not +nil+ or 0.
-    #
-    # It's also possible to instantiate related objects, so a Client class belonging to the clients
-    # table with a +master_id+ foreign key can instantiate master through Client#master.
-    def method_missing(method_id, *args, &block)
-      method_name = method_id.to_s
-
-      if self.class.private_method_defined?(method_name)
-        raise NoMethodError.new("Attempt to call private method", method_name, args)
-      end
-
-      # If we haven't generated any methods yet, generate them, then
-      # see if we've created the method we're looking for.
-      if !self.class.generated_methods?
-        self.class.define_attribute_methods
-        if self.class.generated_methods.include?(method_name)
-          return self.send(method_id, *args, &block)
-        end
-      end
-      
-      if self.class.primary_key.to_s == method_name
-        id
-      elsif md = self.class.match_attribute_method?(method_name)
-        attribute_name, method_type = md.pre_match, md.to_s
-        if @attributes.include?(attribute_name)
-          __send__("attribute#{method_type}", attribute_name, *args, &block)
-        else
-          super
-        end
-      elsif @attributes.include?(method_name)
-        read_attribute(method_name)
-      else
-        super
-      end
-    end
-
-    # Returns the value of the attribute identified by <tt>attr_name</tt> after it has been typecast (for example,
-    # "2004-12-12" in a data column is cast to a date object, like Date.new(2004, 12, 12)).
-    def read_attribute(attr_name)
-      attr_name = attr_name.to_s
-      if !(value = @attributes[attr_name]).nil?
-        if column = column_for_attribute(attr_name)
-          if unserializable_attribute?(attr_name, column)
-            unserialize_attribute(attr_name)
-          else
-            column.type_cast(value)
-          end
-        else
-          value
-        end
-      else
-        nil
-      end
-    end
-
-    def read_attribute_before_type_cast(attr_name)
-      @attributes[attr_name]
-    end
-
-    # Returns true if the attribute is of a text column and marked for serialization.
-    def unserializable_attribute?(attr_name, column)
-      column.text? && self.class.serialized_attributes[attr_name]
-    end
-
-    # Returns the unserialized object of the attribute.
-    def unserialize_attribute(attr_name)
-      unserialized_object = object_from_yaml(@attributes[attr_name])
-
-      if unserialized_object.is_a?(self.class.serialized_attributes[attr_name]) || unserialized_object.nil?
-        @attributes.frozen? ? unserialized_object : @attributes[attr_name] = unserialized_object
-      else
-        raise SerializationTypeMismatch,
-          "#{attr_name} was supposed to be a #{self.class.serialized_attributes[attr_name]}, but was a #{unserialized_object.class.to_s}"
-      end
-    end
-  
-
-    # Updates the attribute identified by <tt>attr_name</tt> with the specified +value+. Empty strings for fixnum and float
-    # columns are turned into +nil+.
-    def write_attribute(attr_name, value)
-      attr_name = attr_name.to_s
-      @attributes_cache.delete(attr_name)
-      if (column = column_for_attribute(attr_name)) && column.number?
-        @attributes[attr_name] = convert_number_column_value(value)
-      else
-        @attributes[attr_name] = value
-      end
-    end
-
-
-    def query_attribute(attr_name)
-      unless value = read_attribute(attr_name)
-        false
-      else
-        column = self.class.columns_hash[attr_name]
-        if column.nil?
-          if Numeric === value || value !~ /[^0-9]/
-            !value.to_i.zero?
-          else
-            return false if ActiveRecord::ConnectionAdapters::Column::FALSE_VALUES.include?(value)
-            !value.blank?
-          end
-        elsif column.number?
-          !value.zero?
-        else
-          !value.blank?
-        end
-      end
-    end
-    
-    # A Person object with a name attribute can ask <tt>person.respond_to?(:name)</tt>,
-    # <tt>person.respond_to?(:name=)</tt>, and <tt>person.respond_to?(:name?)</tt>
-    # which will all return +true+.
-    alias :respond_to_without_attributes? :respond_to?
-    def respond_to?(method, include_private_methods = false)
-      method_name = method.to_s
-      if super
-        return true
-      elsif !include_private_methods && super(method, true)
-        # If we're here than we haven't found among non-private methods
-        # but found among all methods. Which means that given method is private.
-        return false
-      elsif !self.class.generated_methods?
-        self.class.define_attribute_methods
-        if self.class.generated_methods.include?(method_name)
-          return true
-        end
-      end
-        
-      if @attributes.nil?
-        return super
-      elsif @attributes.include?(method_name)
-        return true
-      elsif md = self.class.match_attribute_method?(method_name)
-        return true if @attributes.include?(md.pre_match)
-      end
-      super
-    end
-
-    private
-    
-      def missing_attribute(attr_name, stack)
-        raise ActiveRecord::MissingAttributeError, "missing attribute: #{attr_name}", stack
-      end
-      
-      # Handle *? for method_missing.
-      def attribute?(attribute_name)
-        query_attribute(attribute_name)
-      end
-
-      # Handle *= for method_missing.
-      def attribute=(attribute_name, value)
-        write_attribute(attribute_name, value)
-      end
-
-      # Handle *_before_type_cast for method_missing.
-      def attribute_before_type_cast(attribute_name)
-        read_attribute_before_type_cast(attribute_name)
-      end
-  end
-end
@@ -1,364 +0,0 @@
-module ActiveRecord
-  # AutosaveAssociation is a module that takes care of automatically saving
-  # your associations when the parent is saved. In addition to saving, it
-  # also destroys any associations that were marked for destruction.
-  # (See mark_for_destruction and marked_for_destruction?)
-  #
-  # Saving of the parent, its associations, and the destruction of marked
-  # associations, all happen inside 1 transaction. This should never leave the
-  # database in an inconsistent state after, for instance, mass assigning
-  # attributes and saving them.
-  #
-  # If validations for any of the associations fail, their error messages will
-  # be applied to the parent.
-  #
-  # Note that it also means that associations marked for destruction won't
-  # be destroyed directly. They will however still be marked for destruction.
-  #
-  # === One-to-one Example
-  #
-  # Consider a Post model with one Author:
-  #
-  #   class Post
-  #     has_one :author, :autosave => true
-  #   end
-  #
-  # Saving changes to the parent and its associated model can now be performed
-  # automatically _and_ atomically:
-  #
-  #   post = Post.find(1)
-  #   post.title # => "The current global position of migrating ducks"
-  #   post.author.name # => "alloy"
-  #
-  #   post.title = "On the migration of ducks"
-  #   post.author.name = "Eloy Duran"
-  #
-  #   post.save
-  #   post.reload
-  #   post.title # => "On the migration of ducks"
-  #   post.author.name # => "Eloy Duran"
-  #
-  # Destroying an associated model, as part of the parent's save action, is as
-  # simple as marking it for destruction:
-  #
-  #   post.author.mark_for_destruction
-  #   post.author.marked_for_destruction? # => true
-  #
-  # Note that the model is _not_ yet removed from the database:
-  #   id = post.author.id
-  #   Author.find_by_id(id).nil? # => false
-  #
-  #   post.save
-  #   post.reload.author # => nil
-  #
-  # Now it _is_ removed from the database:
-  #   Author.find_by_id(id).nil? # => true
-  #
-  # === One-to-many Example
-  #
-  # Consider a Post model with many Comments:
-  #
-  #   class Post
-  #     has_many :comments, :autosave => true
-  #   end
-  #
-  # Saving changes to the parent and its associated model can now be performed
-  # automatically _and_ atomically:
-  #
-  #   post = Post.find(1)
-  #   post.title # => "The current global position of migrating ducks"
-  #   post.comments.first.body # => "Wow, awesome info thanks!"
-  #   post.comments.last.body # => "Actually, your article should be named differently."
-  #
-  #   post.title = "On the migration of ducks"
-  #   post.comments.last.body = "Actually, your article should be named differently. [UPDATED]: You are right, thanks."
-  #
-  #   post.save
-  #   post.reload
-  #   post.title # => "On the migration of ducks"
-  #   post.comments.last.body # => "Actually, your article should be named differently. [UPDATED]: You are right, thanks."
-  #
-  # Destroying one of the associated models members, as part of the parent's
-  # save action, is as simple as marking it for destruction:
-  #
-  #   post.comments.last.mark_for_destruction
-  #   post.comments.last.marked_for_destruction? # => true
-  #   post.comments.length # => 2
-  #
-  # Note that the model is _not_ yet removed from the database:
-  #   id = post.comments.last.id
-  #   Comment.find_by_id(id).nil? # => false
-  #
-  #   post.save
-  #   post.reload.comments.length # => 1
-  #
-  # Now it _is_ removed from the database:
-  #   Comment.find_by_id(id).nil? # => true
-  #
-  # === Validation
-  #
-  # Validation is performed on the parent as usual, but also on all autosave
-  # enabled associations. If any of the associations fail validation, its
-  # error messages will be applied on the parents errors object and validation
-  # of the parent will fail.
-  #
-  # Consider a Post model with Author which validates the presence of its name
-  # attribute:
-  #
-  #   class Post
-  #     has_one :author, :autosave => true
-  #   end
-  #
-  #   class Author
-  #     validates_presence_of :name
-  #   end
-  #
-  #   post = Post.find(1)
-  #   post.author.name = ''
-  #   post.save # => false
-  #   post.errors # => #<ActiveRecord::Errors:0x174498c @errors={"author_name"=>["can't be blank"]}, @base=#<Post ...>>
-  #
-  # No validations will be performed on the associated models when validations
-  # are skipped for the parent:
-  #
-  #   post = Post.find(1)
-  #   post.author.name = ''
-  #   post.save(false) # => true
-  module AutosaveAssociation
-    ASSOCIATION_TYPES = %w{ has_one belongs_to has_many has_and_belongs_to_many }
-
-    def self.included(base)
-      base.class_eval do
-        base.extend(ClassMethods)
-        alias_method_chain :reload, :autosave_associations
-
-        ASSOCIATION_TYPES.each do |type|
-          base.send("valid_keys_for_#{type}_association") << :autosave
-        end
-      end
-    end
-
-    module ClassMethods
-      private
-
-      # def belongs_to(name, options = {})
-      #   super
-      #   add_autosave_association_callbacks(reflect_on_association(name))
-      # end
-      ASSOCIATION_TYPES.each do |type|
-        module_eval %{
-          def #{type}(name, options = {})
-            super
-            add_autosave_association_callbacks(reflect_on_association(name))
-          end
-        }
-      end
-
-      # Adds a validate and save callback for the association as specified by
-      # the +reflection+.
-      def add_autosave_association_callbacks(reflection)
-        save_method = "autosave_associated_records_for_#{reflection.name}"
-        validation_method = "validate_associated_records_for_#{reflection.name}"
-        force_validation = (reflection.options[:validate] == true || reflection.options[:autosave] == true)
-
-        case reflection.macro
-        when :has_many, :has_and_belongs_to_many
-          before_save :before_save_collection_association
-
-          define_method(save_method) { save_collection_association(reflection) }
-          # Doesn't use after_save as that would save associations added in after_create/after_update twice
-          after_create save_method
-          after_update save_method
-
-          if force_validation || (reflection.macro == :has_many && reflection.options[:validate] != false)
-            define_method(validation_method) { validate_collection_association(reflection) }
-            validate validation_method
-          end
-        else
-          case reflection.macro
-          when :has_one
-            define_method(save_method) { save_has_one_association(reflection) }
-            after_save save_method
-          when :belongs_to
-            define_method(save_method) { save_belongs_to_association(reflection) }
-            before_save save_method
-          end
-
-          if force_validation
-            define_method(validation_method) { validate_single_association(reflection) }
-            validate validation_method
-          end
-        end
-      end
-    end
-
-    # Reloads the attributes of the object as usual and removes a mark for destruction.
-    def reload_with_autosave_associations(options = nil)
-      @marked_for_destruction = false
-      reload_without_autosave_associations(options)
-    end
-
-    # Marks this record to be destroyed as part of the parents save transaction.
-    # This does _not_ actually destroy the record yet, rather it will be destroyed when <tt>parent.save</tt> is called.
-    #
-    # Only useful if the <tt>:autosave</tt> option on the parent is enabled for this associated model.
-    def mark_for_destruction
-      @marked_for_destruction = true
-    end
-
-    # Returns whether or not this record will be destroyed as part of the parents save transaction.
-    #
-    # Only useful if the <tt>:autosave</tt> option on the parent is enabled for this associated model.
-    def marked_for_destruction?
-      @marked_for_destruction
-    end
-
-    private
-
-    # Returns the record for an association collection that should be validated
-    # or saved. If +autosave+ is +false+ only new records will be returned,
-    # unless the parent is/was a new record itself.
-    def associated_records_to_validate_or_save(association, new_record, autosave)
-      if new_record
-        association
-      elsif association.loaded?
-        autosave ? association : association.select { |record| record.new_record? }
-      else
-        autosave ? association.target : association.target.select { |record| record.new_record? }
-      end
-    end
-
-    # Validate the association if <tt>:validate</tt> or <tt>:autosave</tt> is
-    # turned on for the association specified by +reflection+.
-    def validate_single_association(reflection)
-      if (association = association_instance_get(reflection.name)) && !association.target.nil?
-        association_valid?(reflection, association)
-      end
-    end
-
-    # Validate the associated records if <tt>:validate</tt> or
-    # <tt>:autosave</tt> is turned on for the association specified by
-    # +reflection+.
-    def validate_collection_association(reflection)
-      if association = association_instance_get(reflection.name)
-        if records = associated_records_to_validate_or_save(association, new_record?, reflection.options[:autosave])
-          records.each { |record| association_valid?(reflection, record) }
-        end
-      end
-    end
-
-    # Returns whether or not the association is valid and applies any errors to
-    # the parent, <tt>self</tt>, if it wasn't. Skips any <tt>:autosave</tt>
-    # enabled records if they're marked_for_destruction? or destroyed.
-    def association_valid?(reflection, association)
-      return true if association.destroyed? || association.marked_for_destruction?
-
-      unless valid = association.valid?
-        if reflection.options[:autosave]
-          association.errors.each_error do |attribute, error|
-            attribute = "#{reflection.name}.#{attribute}"
-            errors.add(attribute, error.dup) unless errors.on(attribute)
-          end
-        else
-          errors.add(reflection.name)
-        end
-      end
-      valid
-    end
-
-    # Is used as a before_save callback to check while saving a collection
-    # association whether or not the parent was a new record before saving.
-    def before_save_collection_association
-      @new_record_before_save = new_record?
-      true
-    end
-
-    # Saves any new associated records, or all loaded autosave associations if
-    # <tt>:autosave</tt> is enabled on the association.
-    #
-    # In addition, it destroys all children that were marked for destruction
-    # with mark_for_destruction.
-    #
-    # This all happens inside a transaction, _if_ the Transactions module is included into
-    # ActiveRecord::Base after the AutosaveAssociation module, which it does by default.
-    def save_collection_association(reflection)
-      if association = association_instance_get(reflection.name)
-        autosave = reflection.options[:autosave]
-
-        if records = associated_records_to_validate_or_save(association, @new_record_before_save, autosave)
-          records.each do |record|
-            next if record.destroyed?
-
-            if autosave && record.marked_for_destruction?
-              association.destroy(record)
-            elsif autosave != false && (@new_record_before_save || record.new_record?)
-              if autosave
-                association.send(:insert_record, record, false, false)
-              else
-                association.send(:insert_record, record)
-              end
-            elsif autosave
-              record.save(false)
-            end
-          end
-        end
-
-        # reconstruct the SQL queries now that we know the owner's id
-        association.send(:construct_sql) if association.respond_to?(:construct_sql)
-      end
-    end
-
-    # Saves the associated record if it's new or <tt>:autosave</tt> is enabled
-    # on the association.
-    #
-    # In addition, it will destroy the association if it was marked for
-    # destruction with mark_for_destruction.
-    #
-    # This all happens inside a transaction, _if_ the Transactions module is included into
-    # ActiveRecord::Base after the AutosaveAssociation module, which it does by default.
-    def save_has_one_association(reflection)
-      if (association = association_instance_get(reflection.name)) && !association.target.nil? && !association.destroyed?
-        autosave = reflection.options[:autosave]
-
-        if autosave && association.marked_for_destruction?
-          association.destroy
-        else
-          key = reflection.options[:primary_key] ? send(reflection.options[:primary_key]) : id
-          if autosave != false && (new_record? || association.new_record? || association[reflection.primary_key_name] != key || autosave)
-            association[reflection.primary_key_name] = key
-            association.save(!autosave)
-          end
-        end
-      end
-    end
-
-    # Saves the associated record if it's new or <tt>:autosave</tt> is enabled
-    # on the association.
-    #
-    # In addition, it will destroy the association if it was marked for
-    # destruction with mark_for_destruction.
-    #
-    # This all happens inside a transaction, _if_ the Transactions module is included into
-    # ActiveRecord::Base after the AutosaveAssociation module, which it does by default.
-    def save_belongs_to_association(reflection)
-      if (association = association_instance_get(reflection.name)) && !association.destroyed?
-        autosave = reflection.options[:autosave]
-
-        if autosave && association.marked_for_destruction?
-          association.destroy
-        elsif autosave != false
-          association.save(!autosave) if association.new_record? || autosave
-
-          if association.updated?
-            association_id = association.send(reflection.options[:primary_key] || :id)
-            self[reflection.primary_key_name] = association_id
-            # TODO: Removing this code doesn't seem to matter…
-            if reflection.options[:polymorphic]
-              self[reflection.options[:foreign_type]] = association.class.base_class.name.to_s
-            end
-          end
-        end
-      end
-    end
-  end
-end
@@ -1,3165 +0,0 @@
-require 'yaml'
-require 'set'
-
-module ActiveRecord #:nodoc:
-  # Generic Active Record exception class.
-  class ActiveRecordError < StandardError
-  end
-
-  # Raised when the single-table inheritance mechanism fails to locate the subclass
-  # (for example due to improper usage of column that +inheritance_column+ points to).
-  class SubclassNotFound < ActiveRecordError #:nodoc:
-  end
-
-  # Raised when an object assigned to an association has an incorrect type.
-  #
-  #   class Ticket < ActiveRecord::Base
-  #     has_many :patches
-  #   end
-  #
-  #   class Patch < ActiveRecord::Base
-  #     belongs_to :ticket
-  #   end
-  #
-  #   # Comments are not patches, this assignment raises AssociationTypeMismatch.
-  #   @ticket.patches << Comment.new(:content => "Please attach tests to your patch.")
-  class AssociationTypeMismatch < ActiveRecordError
-  end
-
-  # Raised when unserialized object's type mismatches one specified for serializable field.
-  class SerializationTypeMismatch < ActiveRecordError
-  end
-
-  # Raised when adapter not specified on connection (or configuration file <tt>config/database.yml</tt> misses adapter field).
-  class AdapterNotSpecified < ActiveRecordError
-  end
-
-  # Raised when Active Record cannot find database adapter specified in <tt>config/database.yml</tt> or programmatically.
-  class AdapterNotFound < ActiveRecordError
-  end
-
-  # Raised when connection to the database could not been established (for example when <tt>connection=</tt> is given a nil object).
-  class ConnectionNotEstablished < ActiveRecordError
-  end
-
-  # Raised when Active Record cannot find record by given id or set of ids.
-  class RecordNotFound < ActiveRecordError
-  end
-
-  # Raised by ActiveRecord::Base.save! and ActiveRecord::Base.create! methods when record cannot be
-  # saved because record is invalid.
-  class RecordNotSaved < ActiveRecordError
-  end
-
-  # Raised when SQL statement cannot be executed by the database (for example, it's often the case for MySQL when Ruby driver used is too old).
-  class StatementInvalid < ActiveRecordError
-  end
-
-  # Raised when number of bind variables in statement given to <tt>:condition</tt> key (for example, when using +find+ method)
-  # does not match number of expected variables.
-  #
-  # For example, in
-  #
-  #   Location.find :all, :conditions => ["lat = ? AND lng = ?", 53.7362]
-  #
-  # two placeholders are given but only one variable to fill them.
-  class PreparedStatementInvalid < ActiveRecordError
-  end
-
-  # Raised on attempt to save stale record. Record is stale when it's being saved in another query after
-  # instantiation, for example, when two users edit the same wiki page and one starts editing and saves
-  # the page before the other.
-  #
-  # Read more about optimistic locking in ActiveRecord::Locking module RDoc.
-  class StaleObjectError < ActiveRecordError
-  end
-
-  # Raised when association is being configured improperly or
-  # user tries to use offset and limit together with has_many or has_and_belongs_to_many associations.
-  class ConfigurationError < ActiveRecordError
-  end
-
-  # Raised on attempt to update record that is instantiated as read only.
-  class ReadOnlyRecord < ActiveRecordError
-  end
-
-  # ActiveRecord::Transactions::ClassMethods.transaction uses this exception
-  # to distinguish a deliberate rollback from other exceptional situations.
-  # Normally, raising an exception will cause the +transaction+ method to rollback
-  # the database transaction *and* pass on the exception. But if you raise an
-  # ActiveRecord::Rollback exception, then the database transaction will be rolled back,
-  # without passing on the exception.
-  #
-  # For example, you could do this in your controller to rollback a transaction:
-  #
-  #   class BooksController < ActionController::Base
-  #     def create
-  #       Book.transaction do
-  #         book = Book.new(params[:book])
-  #         book.save!
-  #         if today_is_friday?
-  #           # The system must fail on Friday so that our support department
-  #           # won't be out of job. We silently rollback this transaction
-  #           # without telling the user.
-  #           raise ActiveRecord::Rollback, "Call tech support!"
-  #         end
-  #       end
-  #       # ActiveRecord::Rollback is the only exception that won't be passed on
-  #       # by ActiveRecord::Base.transaction, so this line will still be reached
-  #       # even on Friday.
-  #       redirect_to root_url
-  #     end
-  #   end
-  class Rollback < ActiveRecordError
-  end
-
-  # Raised when attribute has a name reserved by Active Record (when attribute has name of one of Active Record instance methods).
-  class DangerousAttributeError < ActiveRecordError
-  end
-
-  # Raised when you've tried to access a column which wasn't loaded by your finder.
-  # Typically this is because <tt>:select</tt> has been specified.
-  class MissingAttributeError < NoMethodError
-  end
-
-  # Raised when unknown attributes are supplied via mass assignment.
-  class UnknownAttributeError < NoMethodError
-  end
-
-  # Raised when an error occurred while doing a mass assignment to an attribute through the
-  # <tt>attributes=</tt> method. The exception has an +attribute+ property that is the name of the
-  # offending attribute.
-  class AttributeAssignmentError < ActiveRecordError
-    attr_reader :exception, :attribute
-    def initialize(message, exception, attribute)
-      @exception = exception
-      @attribute = attribute
-      @message = message
-    end
-  end
-
-  # Raised when there are multiple errors while doing a mass assignment through the +attributes+
-  # method. The exception has an +errors+ property that contains an array of AttributeAssignmentError
-  # objects, each corresponding to the error while assigning to an attribute.
-  class MultiparameterAssignmentErrors < ActiveRecordError
-    attr_reader :errors
-    def initialize(errors)
-      @errors = errors
-    end
-  end
-
-  # Active Record objects don't specify their attributes directly, but rather infer them from the table definition with
-  # which they're linked. Adding, removing, and changing attributes and their type is done directly in the database. Any change
-  # is instantly reflected in the Active Record objects. The mapping that binds a given Active Record class to a certain
-  # database table will happen automatically in most common cases, but can be overwritten for the uncommon ones.
-  #
-  # See the mapping rules in table_name and the full example in link:files/README.html for more insight.
-  #
-  # == Creation
-  #
-  # Active Records accept constructor parameters either in a hash or as a block. The hash method is especially useful when
-  # you're receiving the data from somewhere else, like an HTTP request. It works like this:
-  #
-  #   user = User.new(:name => "David", :occupation => "Code Artist")
-  #   user.name # => "David"
-  #
-  # You can also use block initialization:
-  #
-  #   user = User.new do |u|
-  #     u.name = "David"
-  #     u.occupation = "Code Artist"
-  #   end
-  #
-  # And of course you can just create a bare object and specify the attributes after the fact:
-  #
-  #   user = User.new
-  #   user.name = "David"
-  #   user.occupation = "Code Artist"
-  #
-  # == Conditions
-  #
-  # Conditions can either be specified as a string, array, or hash representing the WHERE-part of an SQL statement.
-  # The array form is to be used when the condition input is tainted and requires sanitization. The string form can
-  # be used for statements that don't involve tainted data. The hash form works much like the array form, except
-  # only equality and range is possible. Examples:
-  #
-  #   class User < ActiveRecord::Base
-  #     def self.authenticate_unsafely(user_name, password)
-  #       find(:first, :conditions => "user_name = '#{user_name}' AND password = '#{password}'")
-  #     end
-  #
-  #     def self.authenticate_safely(user_name, password)
-  #       find(:first, :conditions => [ "user_name = ? AND password = ?", user_name, password ])
-  #     end
-  #
-  #     def self.authenticate_safely_simply(user_name, password)
-  #       find(:first, :conditions => { :user_name => user_name, :password => password })
-  #     end
-  #   end
-  #
-  # The <tt>authenticate_unsafely</tt> method inserts the parameters directly into the query and is thus susceptible to SQL-injection
-  # attacks if the <tt>user_name</tt> and +password+ parameters come directly from an HTTP request. The <tt>authenticate_safely</tt>  and
-  # <tt>authenticate_safely_simply</tt> both will sanitize the <tt>user_name</tt> and +password+ before inserting them in the query,
-  # which will ensure that an attacker can't escape the query and fake the login (or worse).
-  #
-  # When using multiple parameters in the conditions, it can easily become hard to read exactly what the fourth or fifth
-  # question mark is supposed to represent. In those cases, you can resort to named bind variables instead. That's done by replacing
-  # the question marks with symbols and supplying a hash with values for the matching symbol keys:
-  #
-  #   Company.find(:first, :conditions => [
-  #     "id = :id AND name = :name AND division = :division AND created_at > :accounting_date",
-  #     { :id => 3, :name => "37signals", :division => "First", :accounting_date => '2005-01-01' }
-  #   ])
-  #
-  # Similarly, a simple hash without a statement will generate conditions based on equality with the SQL AND
-  # operator. For instance:
-  #
-  #   Student.find(:all, :conditions => { :first_name => "Harvey", :status => 1 })
-  #   Student.find(:all, :conditions => params[:student])
-  #
-  # A range may be used in the hash to use the SQL BETWEEN operator:
-  #
-  #   Student.find(:all, :conditions => { :grade => 9..12 })
-  #
-  # An array may be used in the hash to use the SQL IN operator:
-  #
-  #   Student.find(:all, :conditions => { :grade => [9,11,12] })
-  #
-  # == Overwriting default accessors
-  #
-  # All column values are automatically available through basic accessors on the Active Record object, but sometimes you
-  # want to specialize this behavior. This can be done by overwriting the default accessors (using the same
-  # name as the attribute) and calling <tt>read_attribute(attr_name)</tt> and <tt>write_attribute(attr_name, value)</tt> to actually change things.
-  # Example:
-  #
-  #   class Song < ActiveRecord::Base
-  #     # Uses an integer of seconds to hold the length of the song
-  #
-  #     def length=(minutes)
-  #       write_attribute(:length, minutes.to_i * 60)
-  #     end
-  #
-  #     def length
-  #       read_attribute(:length) / 60
-  #     end
-  #   end
-  #
-  # You can alternatively use <tt>self[:attribute]=(value)</tt> and <tt>self[:attribute]</tt> instead of <tt>write_attribute(:attribute, value)</tt> and
-  # <tt>read_attribute(:attribute)</tt> as a shorter form.
-  #
-  # == Attribute query methods
-  #
-  # In addition to the basic accessors, query methods are also automatically available on the Active Record object.
-  # Query methods allow you to test whether an attribute value is present.
-  #
-  # For example, an Active Record User with the <tt>name</tt> attribute has a <tt>name?</tt> method that you can call
-  # to determine whether the user has a name:
-  #
-  #   user = User.new(:name => "David")
-  #   user.name? # => true
-  #
-  #   anonymous = User.new(:name => "")
-  #   anonymous.name? # => false
-  #
-  # == Accessing attributes before they have been typecasted
-  #
-  # Sometimes you want to be able to read the raw attribute data without having the column-determined typecast run its course first.
-  # That can be done by using the <tt><attribute>_before_type_cast</tt> accessors that all attributes have. For example, if your Account model
-  # has a <tt>balance</tt> attribute, you can call <tt>account.balance_before_type_cast</tt> or <tt>account.id_before_type_cast</tt>.
-  #
-  # This is especially useful in validation situations where the user might supply a string for an integer field and you want to display
-  # the original string back in an error message. Accessing the attribute normally would typecast the string to 0, which isn't what you
-  # want.
-  #
-  # == Dynamic attribute-based finders
-  #
-  # Dynamic attribute-based finders are a cleaner way of getting (and/or creating) objects by simple queries without turning to SQL. They work by
-  # appending the name of an attribute to <tt>find_by_</tt>, <tt>find_last_by_</tt>, or <tt>find_all_by_</tt>, so you get finders like <tt>Person.find_by_user_name</tt>,
-  # <tt>Person.find_all_by_last_name</tt>, and <tt>Payment.find_by_transaction_id</tt>. So instead of writing
-  # <tt>Person.find(:first, :conditions => ["user_name = ?", user_name])</tt>, you just do <tt>Person.find_by_user_name(user_name)</tt>.
-  # And instead of writing <tt>Person.find(:all, :conditions => ["last_name = ?", last_name])</tt>, you just do <tt>Person.find_all_by_last_name(last_name)</tt>.
-  #
-  # It's also possible to use multiple attributes in the same find by separating them with "_and_", so you get finders like
-  # <tt>Person.find_by_user_name_and_password</tt> or even <tt>Payment.find_by_purchaser_and_state_and_country</tt>. So instead of writing
-  # <tt>Person.find(:first, :conditions => ["user_name = ? AND password = ?", user_name, password])</tt>, you just do
-  # <tt>Person.find_by_user_name_and_password(user_name, password)</tt>.
-  #
-  # It's even possible to use all the additional parameters to find. For example, the full interface for <tt>Payment.find_all_by_amount</tt>
-  # is actually <tt>Payment.find_all_by_amount(amount, options)</tt>. And the full interface to <tt>Person.find_by_user_name</tt> is
-  # actually <tt>Person.find_by_user_name(user_name, options)</tt>. So you could call <tt>Payment.find_all_by_amount(50, :order => "created_on")</tt>.
-  # Also you may call <tt>Payment.find_last_by_amount(amount, options)</tt> returning the last record matching that amount and options.
-  #
-  # The same dynamic finder style can be used to create the object if it doesn't already exist. This dynamic finder is called with
-  # <tt>find_or_create_by_</tt> and will return the object if it already exists and otherwise creates it, then returns it. Protected attributes won't be set unless they are given in a block. For example:
-  #
-  #   # No 'Summer' tag exists
-  #   Tag.find_or_create_by_name("Summer") # equal to Tag.create(:name => "Summer")
-  #
-  #   # Now the 'Summer' tag does exist
-  #   Tag.find_or_create_by_name("Summer") # equal to Tag.find_by_name("Summer")
-  #
-  #   # Now 'Bob' exist and is an 'admin'
-  #   User.find_or_create_by_name('Bob', :age => 40) { |u| u.admin = true }
-  #
-  # Use the <tt>find_or_initialize_by_</tt> finder if you want to return a new record without saving it first. Protected attributes won't be set unless they are given in a block. For example:
-  #
-  #   # No 'Winter' tag exists
-  #   winter = Tag.find_or_initialize_by_name("Winter")
-  #   winter.new_record? # true
-  #
-  # To find by a subset of the attributes to be used for instantiating a new object, pass a hash instead of
-  # a list of parameters. For example:
-  #
-  #   Tag.find_or_create_by_name(:name => "rails", :creator => current_user)
-  #
-  # That will either find an existing tag named "rails", or create a new one while setting the user that created it.
-  #
-  # == Saving arrays, hashes, and other non-mappable objects in text columns
-  #
-  # Active Record can serialize any object in text columns using YAML. To do so, you must specify this with a call to the class method +serialize+.
-  # This makes it possible to store arrays, hashes, and other non-mappable objects without doing any additional work. Example:
-  #
-  #   class User < ActiveRecord::Base
-  #     serialize :preferences
-  #   end
-  #
-  #   user = User.create(:preferences => { "background" => "black", "display" => large })
-  #   User.find(user.id).preferences # => { "background" => "black", "display" => large }
-  #
-  # You can also specify a class option as the second parameter that'll raise an exception if a serialized object is retrieved as a
-  # descendant of a class not in the hierarchy. Example:
-  #
-  #   class User < ActiveRecord::Base
-  #     serialize :preferences, Hash
-  #   end
-  #
-  #   user = User.create(:preferences => %w( one two three ))
-  #   User.find(user.id).preferences    # raises SerializationTypeMismatch
-  #
-  # == Single table inheritance
-  #
-  # Active Record allows inheritance by storing the name of the class in a column that by default is named "type" (can be changed
-  # by overwriting <tt>Base.inheritance_column</tt>). This means that an inheritance looking like this:
-  #
-  #   class Company < ActiveRecord::Base; end
-  #   class Firm < Company; end
-  #   class Client < Company; end
-  #   class PriorityClient < Client; end
-  #
-  # When you do <tt>Firm.create(:name => "37signals")</tt>, this record will be saved in the companies table with type = "Firm". You can then
-  # fetch this row again using <tt>Company.find(:first, "name = '37signals'")</tt> and it will return a Firm object.
-  #
-  # If you don't have a type column defined in your table, single-table inheritance won't be triggered. In that case, it'll work just
-  # like normal subclasses with no special magic for differentiating between them or reloading the right type with find.
-  #
-  # Note, all the attributes for all the cases are kept in the same table. Read more:
-  # http://www.martinfowler.com/eaaCatalog/singleTableInheritance.html
-  #
-  # == Connection to multiple databases in different models
-  #
-  # Connections are usually created through ActiveRecord::Base.establish_connection and retrieved by ActiveRecord::Base.connection.
-  # All classes inheriting from ActiveRecord::Base will use this connection. But you can also set a class-specific connection.
-  # For example, if Course is an ActiveRecord::Base, but resides in a different database, you can just say <tt>Course.establish_connection</tt>
-  # and Course and all of its subclasses will use this connection instead.
-  #
-  # This feature is implemented by keeping a connection pool in ActiveRecord::Base that is a Hash indexed by the class. If a connection is
-  # requested, the retrieve_connection method will go up the class-hierarchy until a connection is found in the connection pool.
-  #
-  # == Exceptions
-  #
-  # * ActiveRecordError - Generic error class and superclass of all other errors raised by Active Record.
-  # * AdapterNotSpecified - The configuration hash used in <tt>establish_connection</tt> didn't include an
-  #   <tt>:adapter</tt> key.
-  # * AdapterNotFound - The <tt>:adapter</tt> key used in <tt>establish_connection</tt> specified a non-existent adapter
-  #   (or a bad spelling of an existing one).
-  # * AssociationTypeMismatch - The object assigned to the association wasn't of the type specified in the association definition.
-  # * SerializationTypeMismatch - The serialized object wasn't of the class specified as the second parameter.
-  # * ConnectionNotEstablished+ - No connection has been established. Use <tt>establish_connection</tt> before querying.
-  # * RecordNotFound - No record responded to the +find+ method. Either the row with the given ID doesn't exist
-  #   or the row didn't meet the additional restrictions. Some +find+ calls do not raise this exception to signal
-  #   nothing was found, please check its documentation for further details.
-  # * StatementInvalid - The database server rejected the SQL statement. The precise error is added in the message.
-  # * MultiparameterAssignmentErrors - Collection of errors that occurred during a mass assignment using the
-  #   <tt>attributes=</tt> method. The +errors+ property of this exception contains an array of AttributeAssignmentError
-  #   objects that should be inspected to determine which attributes triggered the errors.
-  # * AttributeAssignmentError - An error occurred while doing a mass assignment through the <tt>attributes=</tt> method.
-  #   You can inspect the +attribute+ property of the exception object to determine which attribute triggered the error.
-  #
-  # *Note*: The attributes listed are class-level attributes (accessible from both the class and instance level).
-  # So it's possible to assign a logger to the class through <tt>Base.logger=</tt> which will then be used by all
-  # instances in the current object space.
-  class Base
-    ##  
-    # :singleton-method:
-    # Accepts a logger conforming to the interface of Log4r or the default Ruby 1.8+ Logger class, which is then passed
-    # on to any new database connections made and which can be retrieved on both a class and instance level by calling +logger+.
-    cattr_accessor :logger, :instance_writer => false
-
-    def self.inherited(child) #:nodoc:
-      @@subclasses[self] ||= []
-      @@subclasses[self] << child
-      super
-    end
-
-    def self.reset_subclasses #:nodoc:
-      nonreloadables = []
-      subclasses.each do |klass|
-        unless ActiveSupport::Dependencies.autoloaded? klass
-          nonreloadables << klass
-          next
-        end
-        klass.instance_variables.each { |var| klass.send(:remove_instance_variable, var) }
-        klass.instance_methods(false).each { |m| klass.send :undef_method, m }
-      end
-      @@subclasses = {}
-      nonreloadables.each { |klass| (@@subclasses[klass.superclass] ||= []) << klass }
-    end
-
-    @@subclasses = {}
-
-    ##
-    # :singleton-method:
-    # Contains the database configuration - as is typically stored in config/database.yml -
-    # as a Hash.
-    #
-    # For example, the following database.yml...
-    # 
-    #   development:
-    #     adapter: sqlite3
-    #     database: db/development.sqlite3
-    #   
-    #   production:
-    #     adapter: sqlite3
-    #     database: db/production.sqlite3
-    #
-    # ...would result in ActiveRecord::Base.configurations to look like this:
-    #
-    #   {
-    #      'development' => {
-    #         'adapter'  => 'sqlite3',
-    #         'database' => 'db/development.sqlite3'
-    #      },
-    #      'production' => {
-    #         'adapter'  => 'sqlite3',
-    #         'database' => 'db/production.sqlite3'
-    #      }
-    #   }
-    cattr_accessor :configurations, :instance_writer => false
-    @@configurations = {}
-
-    ##
-    # :singleton-method:
-    # Accessor for the prefix type that will be prepended to every primary key column name. The options are :table_name and
-    # :table_name_with_underscore. If the first is specified, the Product class will look for "productid" instead of "id" as
-    # the primary column. If the latter is specified, the Product class will look for "product_id" instead of "id". Remember
-    # that this is a global setting for all Active Records.
-    cattr_accessor :primary_key_prefix_type, :instance_writer => false
-    @@primary_key_prefix_type = nil
-
-    ##
-    # :singleton-method:
-    # Accessor for the name of the prefix string to prepend to every table name. So if set to "basecamp_", all
-    # table names will be named like "basecamp_projects", "basecamp_people", etc. This is a convenient way of creating a namespace
-    # for tables in a shared database. By default, the prefix is the empty string.
-    cattr_accessor :table_name_prefix, :instance_writer => false
-    @@table_name_prefix = ""
-
-    ##
-    # :singleton-method:
-    # Works like +table_name_prefix+, but appends instead of prepends (set to "_basecamp" gives "projects_basecamp",
-    # "people_basecamp"). By default, the suffix is the empty string.
-    cattr_accessor :table_name_suffix, :instance_writer => false
-    @@table_name_suffix = ""
-
-    ##
-    # :singleton-method:
-    # Indicates whether table names should be the pluralized versions of the corresponding class names.
-    # If true, the default table name for a Product class will be +products+. If false, it would just be +product+.
-    # See table_name for the full rules on table/class naming. This is true, by default.
-    cattr_accessor :pluralize_table_names, :instance_writer => false
-    @@pluralize_table_names = true
-
-    ##
-    # :singleton-method:
-    # Determines whether to use ANSI codes to colorize the logging statements committed by the connection adapter. These colors
-    # make it much easier to overview things during debugging (when used through a reader like +tail+ and on a black background), but
-    # may complicate matters if you use software like syslog. This is true, by default.
-    cattr_accessor :colorize_logging, :instance_writer => false
-    @@colorize_logging = true
-
-    ##
-    # :singleton-method:
-    # Determines whether to use Time.local (using :local) or Time.utc (using :utc) when pulling dates and times from the database.
-    # This is set to :local by default.
-    cattr_accessor :default_timezone, :instance_writer => false
-    @@default_timezone = :local
-
-    ##
-    # :singleton-method:
-    # Specifies the format to use when dumping the database schema with Rails'
-    # Rakefile.  If :sql, the schema is dumped as (potentially database-
-    # specific) SQL statements.  If :ruby, the schema is dumped as an
-    # ActiveRecord::Schema file which can be loaded into any database that
-    # supports migrations.  Use :ruby if you want to have different database
-    # adapters for, e.g., your development and test environments.
-    cattr_accessor :schema_format , :instance_writer => false
-    @@schema_format = :ruby
-
-    ##
-    # :singleton-method:
-    # Specify whether or not to use timestamps for migration numbers
-    cattr_accessor :timestamped_migrations , :instance_writer => false
-    @@timestamped_migrations = true
-
-    # Determine whether to store the full constant name including namespace when using STI
-    superclass_delegating_accessor :store_full_sti_class
-    self.store_full_sti_class = false
-
-    # Stores the default scope for the class
-    class_inheritable_accessor :default_scoping, :instance_writer => false
-    self.default_scoping = []
-
-    class << self # Class methods
-      # Find operates with four different retrieval approaches:
-      #
-      # * Find by id - This can either be a specific id (1), a list of ids (1, 5, 6), or an array of ids ([5, 6, 10]).
-      #   If no record can be found for all of the listed ids, then RecordNotFound will be raised.
-      # * Find first - This will return the first record matched by the options used. These options can either be specific
-      #   conditions or merely an order. If no record can be matched, +nil+ is returned. Use
-      #   <tt>Model.find(:first, *args)</tt> or its shortcut <tt>Model.first(*args)</tt>.
-      # * Find last - This will return the last record matched by the options used. These options can either be specific
-      #   conditions or merely an order. If no record can be matched, +nil+ is returned. Use
-      #   <tt>Model.find(:last, *args)</tt> or its shortcut <tt>Model.last(*args)</tt>.
-      # * Find all - This will return all the records matched by the options used.
-      #   If no records are found, an empty array is returned. Use
-      #   <tt>Model.find(:all, *args)</tt> or its shortcut <tt>Model.all(*args)</tt>.
-      #
-      # All approaches accept an options hash as their last parameter.
-      #
-      # ==== Parameters
-      #
-      # * <tt>:conditions</tt> - An SQL fragment like "administrator = 1", <tt>[ "user_name = ?", username ]</tt>, or <tt>["user_name = :user_name", { :user_name => user_name }]</tt>. See conditions in the intro.
-      # * <tt>:order</tt> - An SQL fragment like "created_at DESC, name".
-      # * <tt>:group</tt> - An attribute name by which the result should be grouped. Uses the <tt>GROUP BY</tt> SQL-clause.
-      # * <tt>:having</tt> - Combined with +:group+ this can be used to filter the records that a <tt>GROUP BY</tt> returns. Uses the <tt>HAVING</tt> SQL-clause.
-      # * <tt>:limit</tt> - An integer determining the limit on the number of rows that should be returned.
-      # * <tt>:offset</tt> - An integer determining the offset from where the rows should be fetched. So at 5, it would skip rows 0 through 4.
-      # * <tt>:joins</tt> - Either an SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id" (rarely needed),
-      #   named associations in the same form used for the <tt>:include</tt> option, which will perform an <tt>INNER JOIN</tt> on the associated table(s),
-      #   or an array containing a mixture of both strings and named associations.
-      #   If the value is a string, then the records will be returned read-only since they will have attributes that do not correspond to the table's columns.
-      #   Pass <tt>:readonly => false</tt> to override.
-      # * <tt>:include</tt> - Names associations that should be loaded alongside. The symbols named refer
-      #   to already defined associations. See eager loading under Associations.
-      # * <tt>:select</tt> - By default, this is "*" as in "SELECT * FROM", but can be changed if you, for example, want to do a join but not
-      #   include the joined columns. Takes a string with the SELECT SQL fragment (e.g. "id, name").
-      # * <tt>:from</tt> - By default, this is the table name of the class, but can be changed to an alternate table name (or even the name
-      #   of a database view).
-      # * <tt>:readonly</tt> - Mark the returned records read-only so they cannot be saved or updated.
-      # * <tt>:lock</tt> - An SQL fragment like "FOR UPDATE" or "LOCK IN SHARE MODE".
-      #   <tt>:lock => true</tt> gives connection's default exclusive lock, usually "FOR UPDATE".
-      #
-      # ==== Examples
-      #
-      #   # find by id
-      #   Person.find(1)       # returns the object for ID = 1
-      #   Person.find(1, 2, 6) # returns an array for objects with IDs in (1, 2, 6)
-      #   Person.find([7, 17]) # returns an array for objects with IDs in (7, 17)
-      #   Person.find([1])     # returns an array for the object with ID = 1
-      #   Person.find(1, :conditions => "administrator = 1", :order => "created_on DESC")
-      #
-      # Note that returned records may not be in the same order as the ids you
-      # provide since database rows are unordered. Give an explicit <tt>:order</tt>
-      # to ensure the results are sorted.
-      #
-      # ==== Examples
-      #
-      #   # find first
-      #   Person.find(:first) # returns the first object fetched by SELECT * FROM people
-      #   Person.find(:first, :conditions => [ "user_name = ?", user_name])
-      #   Person.find(:first, :conditions => [ "user_name = :u", { :u => user_name }])
-      #   Person.find(:first, :order => "created_on DESC", :offset => 5)
-      #
-      #   # find last
-      #   Person.find(:last) # returns the last object fetched by SELECT * FROM people
-      #   Person.find(:last, :conditions => [ "user_name = ?", user_name])
-      #   Person.find(:last, :order => "created_on DESC", :offset => 5)
-      #
-      #   # find all
-      #   Person.find(:all) # returns an array of objects for all the rows fetched by SELECT * FROM people
-      #   Person.find(:all, :conditions => [ "category IN (?)", categories], :limit => 50)
-      #   Person.find(:all, :conditions => { :friends => ["Bob", "Steve", "Fred"] }
-      #   Person.find(:all, :offset => 10, :limit => 10)
-      #   Person.find(:all, :include => [ :account, :friends ])
-      #   Person.find(:all, :group => "category")
-      #
-      # Example for find with a lock: Imagine two concurrent transactions:
-      # each will read <tt>person.visits == 2</tt>, add 1 to it, and save, resulting
-      # in two saves of <tt>person.visits = 3</tt>.  By locking the row, the second
-      # transaction has to wait until the first is finished; we get the
-      # expected <tt>person.visits == 4</tt>.
-      #
-      #   Person.transaction do
-      #     person = Person.find(1, :lock => true)
-      #     person.visits += 1
-      #     person.save!
-      #   end
-      def find(*args)
-        options = args.extract_options!
-        validate_find_options(options)
-        set_readonly_option!(options)
-
-        case args.first
-          when :first then find_initial(options)
-          when :last  then find_last(options)
-          when :all   then find_every(options)
-          else             find_from_ids(args, options)
-        end
-      end
-
-      # A convenience wrapper for <tt>find(:first, *args)</tt>. You can pass in all the
-      # same arguments to this method as you can to <tt>find(:first)</tt>.
-      def first(*args)
-        find(:first, *args)
-      end
-
-      # A convenience wrapper for <tt>find(:last, *args)</tt>. You can pass in all the
-      # same arguments to this method as you can to <tt>find(:last)</tt>.
-      def last(*args)
-        find(:last, *args)
-      end
-
-      # This is an alias for find(:all).  You can pass in all the same arguments to this method as you can
-      # to find(:all)
-      def all(*args)
-        find(:all, *args)
-      end
-
-      # Executes a custom SQL query against your database and returns all the results.  The results will
-      # be returned as an array with columns requested encapsulated as attributes of the model you call
-      # this method from.  If you call <tt>Product.find_by_sql</tt> then the results will be returned in
-      # a Product object with the attributes you specified in the SQL query.
-      #
-      # If you call a complicated SQL query which spans multiple tables the columns specified by the
-      # SELECT will be attributes of the model, whether or not they are columns of the corresponding
-      # table.
-      #
-      # The +sql+ parameter is a full SQL query as a string.  It will be called as is, there will be
-      # no database agnostic conversions performed.  This should be a last resort because using, for example,
-      # MySQL specific terms will lock you to using that particular database engine or require you to
-      # change your call if you switch engines.
-      #
-      # ==== Examples
-      #   # A simple SQL query spanning multiple tables
-      #   Post.find_by_sql "SELECT p.title, c.author FROM posts p, comments c WHERE p.id = c.post_id"
-      #   > [#<Post:0x36bff9c @attributes={"title"=>"Ruby Meetup", "first_name"=>"Quentin"}>, ...]
-      #
-      #   # You can use the same string replacement techniques as you can with ActiveRecord#find
-      #   Post.find_by_sql ["SELECT title FROM posts WHERE author = ? AND created > ?", author_id, start_date]
-      #   > [#<Post:0x36bff9c @attributes={"first_name"=>"The Cheap Man Buys Twice"}>, ...]
-      def find_by_sql(sql)
-        connection.select_all(sanitize_sql(sql), "#{name} Load").collect! { |record| instantiate(record) }
-      end
-
-      # Returns true if a record exists in the table that matches the +id+ or
-      # conditions given, or false otherwise. The argument can take five forms:
-      #
-      # * Integer - Finds the record with this primary key.
-      # * String - Finds the record with a primary key corresponding to this
-      #   string (such as <tt>'5'</tt>).
-      # * Array - Finds the record that matches these +find+-style conditions
-      #   (such as <tt>['color = ?', 'red']</tt>).
-      # * Hash - Finds the record that matches these +find+-style conditions
-      #   (such as <tt>{:color => 'red'}</tt>).
-      # * No args - Returns false if the table is empty, true otherwise.
-      #
-      # For more information about specifying conditions as a Hash or Array,
-      # see the Conditions section in the introduction to ActiveRecord::Base.
-      #
-      # Note: You can't pass in a condition as a string (like <tt>name =
-      # 'Jamie'</tt>), since it would be sanitized and then queried against
-      # the primary key column, like <tt>id = 'name = \'Jamie\''</tt>.
-      #
-      # ==== Examples
-      #   Person.exists?(5)
-      #   Person.exists?('5')
-      #   Person.exists?(:name => "David")
-      #   Person.exists?(['name LIKE ?', "%#{query}%"])
-      #   Person.exists?
-      def exists?(id_or_conditions = {})
-        find_initial(
-          :select => "#{quoted_table_name}.#{primary_key}",
-          :conditions => expand_id_conditions(id_or_conditions)) ? true : false
-      end
-
-      # Creates an object (or multiple objects) and saves it to the database, if validations pass.
-      # The resulting object is returned whether the object was saved successfully to the database or not.
-      #
-      # The +attributes+ parameter can be either be a Hash or an Array of Hashes.  These Hashes describe the
-      # attributes on the objects that are to be created.
-      #
-      # ==== Examples
-      #   # Create a single new object
-      #   User.create(:first_name => 'Jamie')
-      #
-      #   # Create an Array of new objects
-      #   User.create([{ :first_name => 'Jamie' }, { :first_name => 'Jeremy' }])
-      #
-      #   # Create a single object and pass it into a block to set other attributes.
-      #   User.create(:first_name => 'Jamie') do |u|
-      #     u.is_admin = false
-      #   end
-      #
-      #   # Creating an Array of new objects using a block, where the block is executed for each object:
-      #   User.create([{ :first_name => 'Jamie' }, { :first_name => 'Jeremy' }]) do |u|
-      #     u.is_admin = false
-      #   end
-      def create(attributes = nil, &block)
-        if attributes.is_a?(Array)
-          attributes.collect { |attr| create(attr, &block) }
-        else
-          object = new(attributes)
-          yield(object) if block_given?
-          object.save
-          object
-        end
-      end
-
-      # Updates an object (or multiple objects) and saves it to the database, if validations pass.
-      # The resulting object is returned whether the object was saved successfully to the database or not.
-      #
-      # ==== Parameters
-      #
-      # * +id+ - This should be the id or an array of ids to be updated.
-      # * +attributes+ - This should be a hash of attributes to be set on the object, or an array of hashes.
-      #
-      # ==== Examples
-      #
-      #   # Updating one record:
-      #   Person.update(15, :user_name => 'Samuel', :group => 'expert')
-      #
-      #   # Updating multiple records:
-      #   people = { 1 => { "first_name" => "David" }, 2 => { "first_name" => "Jeremy" } }
-      #   Person.update(people.keys, people.values)
-      def update(id, attributes)
-        if id.is_a?(Array)
-          idx = -1
-          id.collect { |one_id| idx += 1; update(one_id, attributes[idx]) }
-        else
-          object = find(id)
-          object.update_attributes(attributes)
-          object
-        end
-      end
-
-      # Deletes the row with a primary key matching the +id+ argument, using a
-      # SQL +DELETE+ statement, and returns the number of rows deleted. Active
-      # Record objects are not instantiated, so the object's callbacks are not
-      # executed, including any <tt>:dependent</tt> association options or
-      # Observer methods.
-      #
-      # You can delete multiple rows at once by passing an Array of <tt>id</tt>s.
-      #
-      # Note: Although it is often much faster than the alternative,
-      # <tt>#destroy</tt>, skipping callbacks might bypass business logic in
-      # your application that ensures referential integrity or performs other
-      # essential jobs.
-      #
-      # ==== Examples
-      #
-      #   # Delete a single row
-      #   Todo.delete(1)
-      #
-      #   # Delete multiple rows
-      #   Todo.delete([2,3,4])
-      def delete(id)
-        delete_all([ "#{connection.quote_column_name(primary_key)} IN (?)", id ])
-      end
-
-      # Destroy an object (or multiple objects) that has the given id, the object is instantiated first,
-      # therefore all callbacks and filters are fired off before the object is deleted.  This method is
-      # less efficient than ActiveRecord#delete but allows cleanup methods and other actions to be run.
-      #
-      # This essentially finds the object (or multiple objects) with the given id, creates a new object
-      # from the attributes, and then calls destroy on it.
-      #
-      # ==== Parameters
-      #
-      # * +id+ - Can be either an Integer or an Array of Integers.
-      #
-      # ==== Examples
-      #
-      #   # Destroy a single object
-      #   Todo.destroy(1)
-      #
-      #   # Destroy multiple objects
-      #   todos = [1,2,3]
-      #   Todo.destroy(todos)
-      def destroy(id)
-        if id.is_a?(Array)
-          id.map { |one_id| destroy(one_id) }
-        else
-          find(id).destroy
-        end
-      end
-
-      # Updates all records with details given if they match a set of conditions supplied, limits and order can
-      # also be supplied. This method constructs a single SQL UPDATE statement and sends it straight to the
-      # database. It does not instantiate the involved models and it does not trigger Active Record callbacks.
-      #
-      # ==== Parameters
-      #
-      # * +updates+ - A string of column and value pairs that will be set on any records that match conditions. This creates the SET clause of the generated SQL.
-      # * +conditions+ - An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro for more info.
-      # * +options+ - Additional options are <tt>:limit</tt> and <tt>:order</tt>, see the examples for usage.
-      #
-      # ==== Examples
-      #
-      #   # Update all billing objects with the 3 different attributes given
-      #   Billing.update_all( "category = 'authorized', approved = 1, author = 'David'" )
-      #
-      #   # Update records that match our conditions
-      #   Billing.update_all( "author = 'David'", "title LIKE '%Rails%'" )
-      #
-      #   # Update records that match our conditions but limit it to 5 ordered by date
-      #   Billing.update_all( "author = 'David'", "title LIKE '%Rails%'",
-      #                         :order => 'created_at', :limit => 5 )
-      def update_all(updates, conditions = nil, options = {})
-        sql  = "UPDATE #{quoted_table_name} SET #{sanitize_sql_for_assignment(updates)} "
-
-        scope = scope(:find)
-
-        select_sql = ""
-        add_conditions!(select_sql, conditions, scope)
-
-        if options.has_key?(:limit) || (scope && scope[:limit])
-          # Only take order from scope if limit is also provided by scope, this
-          # is useful for updating a has_many association with a limit.
-          add_order!(select_sql, options[:order], scope)
-
-          add_limit!(select_sql, options, scope)
-          sql.concat(connection.limited_update_conditions(select_sql, quoted_table_name, connection.quote_column_name(primary_key)))
-        else
-          add_order!(select_sql, options[:order], nil)
-          sql.concat(select_sql)
-        end
-
-        connection.update(sql, "#{name} Update")
-      end
-
-      # Destroys the records matching +conditions+ by instantiating each
-      # record and calling its +destroy+ method. Each object's callbacks are
-      # executed (including <tt>:dependent</tt> association options and
-      # +before_destroy+/+after_destroy+ Observer methods). Returns the
-      # collection of objects that were destroyed; each will be frozen, to
-      # reflect that no changes should be made (since they can't be
-      # persisted).
-      #
-      # Note: Instantiation, callback execution, and deletion of each
-      # record can be time consuming when you're removing many records at
-      # once. It generates at least one SQL +DELETE+ query per record (or
-      # possibly more, to enforce your callbacks). If you want to delete many
-      # rows quickly, without concern for their associations or callbacks, use
-      # +delete_all+ instead.
-      #
-      # ==== Parameters
-      #
-      # * +conditions+ - A string, array, or hash that specifies which records
-      #   to destroy. If omitted, all records are destroyed. See the
-      #   Conditions section in the introduction to ActiveRecord::Base for
-      #   more information.
-      #
-      # ==== Examples
-      #
-      #   Person.destroy_all("last_login < '2004-04-04'")
-      #   Person.destroy_all(:status => "inactive")
-      def destroy_all(conditions = nil)
-        find(:all, :conditions => conditions).each { |object| object.destroy }
-      end
-
-      # Deletes the records matching +conditions+ without instantiating the records first, and hence not
-      # calling the +destroy+ method nor invoking callbacks. This is a single SQL DELETE statement that
-      # goes straight to the database, much more efficient than +destroy_all+. Be careful with relations
-      # though, in particular <tt>:dependent</tt> rules defined on associations are not honored.  Returns
-      # the number of rows affected.
-      #
-      # ==== Parameters
-      #
-      # * +conditions+ - Conditions are specified the same way as with +find+ method.
-      #
-      # ==== Example
-      #
-      #   Post.delete_all("person_id = 5 AND (category = 'Something' OR category = 'Else')")
-      #   Post.delete_all(["person_id = ? AND (category = ? OR category = ?)", 5, 'Something', 'Else'])
-      #
-      # Both calls delete the affected posts all at once with a single DELETE statement. If you need to destroy dependent
-      # associations or call your <tt>before_*</tt> or +after_destroy+ callbacks, use the +destroy_all+ method instead.
-      def delete_all(conditions = nil)
-        sql = "DELETE FROM #{quoted_table_name} "
-        add_conditions!(sql, conditions, scope(:find))
-        connection.delete(sql, "#{name} Delete all")
-      end
-
-      # Returns the result of an SQL statement that should only include a COUNT(*) in the SELECT part.
-      # The use of this method should be restricted to complicated SQL queries that can't be executed
-      # using the ActiveRecord::Calculations class methods.  Look into those before using this.
-      #
-      # ==== Parameters
-      #
-      # * +sql+ - An SQL statement which should return a count query from the database, see the example below.
-      #
-      # ==== Examples
-      #
-      #   Product.count_by_sql "SELECT COUNT(*) FROM sales s, customers c WHERE s.customer_id = c.id"
-      def count_by_sql(sql)
-        sql = sanitize_conditions(sql)
-        connection.select_value(sql, "#{name} Count").to_i
-      end
-
-      # A generic "counter updater" implementation, intended primarily to be
-      # used by increment_counter and decrement_counter, but which may also
-      # be useful on its own. It simply does a direct SQL update for the record
-      # with the given ID, altering the given hash of counters by the amount
-      # given by the corresponding value:
-      #
-      # ==== Parameters
-      #
-      # * +id+ - The id of the object you wish to update a counter on or an Array of ids.
-      # * +counters+ - An Array of Hashes containing the names of the fields
-      #   to update as keys and the amount to update the field by as values.
-      #
-      # ==== Examples
-      #
-      #   # For the Post with id of 5, decrement the comment_count by 1, and
-      #   # increment the action_count by 1
-      #   Post.update_counters 5, :comment_count => -1, :action_count => 1
-      #   # Executes the following SQL:
-      #   # UPDATE posts
-      #   #    SET comment_count = comment_count - 1,
-      #   #        action_count = action_count + 1
-      #   #  WHERE id = 5
-      #
-      #   # For the Posts with id of 10 and 15, increment the comment_count by 1
-      #   Post.update_counters [10, 15], :comment_count => 1
-      #   # Executes the following SQL:
-      #   # UPDATE posts
-      #   #    SET comment_count = comment_count + 1,
-      #   #  WHERE id IN (10, 15)
-      def update_counters(id, counters)
-        updates = counters.inject([]) { |list, (counter_name, increment)|
-          sign = increment < 0 ? "-" : "+"
-          list << "#{connection.quote_column_name(counter_name)} = COALESCE(#{connection.quote_column_name(counter_name)}, 0) #{sign} #{increment.abs}"
-        }.join(", ")
-
-        if id.is_a?(Array)
-          ids_list = id.map {|i| quote_value(i)}.join(', ')
-          condition = "IN  (#{ids_list})"
-        else
-          condition = "= #{quote_value(id)}"
-        end
-
-        update_all(updates, "#{connection.quote_column_name(primary_key)} #{condition}")
-      end
-
-      # Increment a number field by one, usually representing a count.
-      #
-      # This is used for caching aggregate values, so that they don't need to be computed every time.
-      # For example, a DiscussionBoard may cache post_count and comment_count otherwise every time the board is
-      # shown it would have to run an SQL query to find how many posts and comments there are.
-      #
-      # ==== Parameters
-      #
-      # * +counter_name+ - The name of the field that should be incremented.
-      # * +id+ - The id of the object that should be incremented.
-      #
-      # ==== Examples
-      #
-      #   # Increment the post_count column for the record with an id of 5
-      #   DiscussionBoard.increment_counter(:post_count, 5)
-      def increment_counter(counter_name, id)
-        update_counters(id, counter_name => 1)
-      end
-
-      # Decrement a number field by one, usually representing a count.
-      #
-      # This works the same as increment_counter but reduces the column value by 1 instead of increasing it.
-      #
-      # ==== Parameters
-      #
-      # * +counter_name+ - The name of the field that should be decremented.
-      # * +id+ - The id of the object that should be decremented.
-      #
-      # ==== Examples
-      #
-      #   # Decrement the post_count column for the record with an id of 5
-      #   DiscussionBoard.decrement_counter(:post_count, 5)
-      def decrement_counter(counter_name, id)
-        update_counters(id, counter_name => -1)
-      end
-
-      # Attributes named in this macro are protected from mass-assignment,
-      # such as <tt>new(attributes)</tt>,
-      # <tt>update_attributes(attributes)</tt>, or
-      # <tt>attributes=(attributes)</tt>.
-      #
-      # Mass-assignment to these attributes will simply be ignored, to assign
-      # to them you can use direct writer methods. This is meant to protect
-      # sensitive attributes from being overwritten by malicious users
-      # tampering with URLs or forms.
-      #
-      #   class Customer < ActiveRecord::Base
-      #     attr_protected :credit_rating
-      #   end
-      #
-      #   customer = Customer.new("name" => David, "credit_rating" => "Excellent")
-      #   customer.credit_rating # => nil
-      #   customer.attributes = { "description" => "Jolly fellow", "credit_rating" => "Superb" }
-      #   customer.credit_rating # => nil
-      #
-      #   customer.credit_rating = "Average"
-      #   customer.credit_rating # => "Average"
-      #
-      # To start from an all-closed default and enable attributes as needed,
-      # have a look at +attr_accessible+.
-      def attr_protected(*attributes)
-        write_inheritable_attribute(:attr_protected, Set.new(attributes.map(&:to_s)) + (protected_attributes || []))
-      end
-
-      # Returns an array of all the attributes that have been protected from mass-assignment.
-      def protected_attributes # :nodoc:
-        read_inheritable_attribute(:attr_protected)
-      end
-
-      # Specifies a white list of model attributes that can be set via
-      # mass-assignment, such as <tt>new(attributes)</tt>,
-      # <tt>update_attributes(attributes)</tt>, or
-      # <tt>attributes=(attributes)</tt>
-      #
-      # This is the opposite of the +attr_protected+ macro: Mass-assignment
-      # will only set attributes in this list, to assign to the rest of
-      # attributes you can use direct writer methods. This is meant to protect
-      # sensitive attributes from being overwritten by malicious users
-      # tampering with URLs or forms. If you'd rather start from an all-open
-      # default and restrict attributes as needed, have a look at
-      # +attr_protected+.
-      #
-      #   class Customer < ActiveRecord::Base
-      #     attr_accessible :name, :nickname
-      #   end
-      #
-      #   customer = Customer.new(:name => "David", :nickname => "Dave", :credit_rating => "Excellent")
-      #   customer.credit_rating # => nil
-      #   customer.attributes = { :name => "Jolly fellow", :credit_rating => "Superb" }
-      #   customer.credit_rating # => nil
-      #
-      #   customer.credit_rating = "Average"
-      #   customer.credit_rating # => "Average"
-      def attr_accessible(*attributes)
-        write_inheritable_attribute(:attr_accessible, Set.new(attributes.map(&:to_s)) + (accessible_attributes || []))
-      end
-
-      # Returns an array of all the attributes that have been made accessible to mass-assignment.
-      def accessible_attributes # :nodoc:
-        read_inheritable_attribute(:attr_accessible)
-      end
-
-       # Attributes listed as readonly can be set for a new record, but will be ignored in database updates afterwards.
-       def attr_readonly(*attributes)
-         write_inheritable_attribute(:attr_readonly, Set.new(attributes.map(&:to_s)) + (readonly_attributes || []))
-       end
-
-       # Returns an array of all the attributes that have been specified as readonly.
-       def readonly_attributes
-         read_inheritable_attribute(:attr_readonly)
-       end
-
-      # If you have an attribute that needs to be saved to the database as an object, and retrieved as the same object,
-      # then specify the name of that attribute using this method and it will be handled automatically.
-      # The serialization is done through YAML. If +class_name+ is specified, the serialized object must be of that
-      # class on retrieval or SerializationTypeMismatch will be raised.
-      #
-      # ==== Parameters
-      #
-      # * +attr_name+ - The field name that should be serialized.
-      # * +class_name+ - Optional, class name that the object type should be equal to.
-      #
-      # ==== Example
-      #   # Serialize a preferences attribute
-      #   class User
-      #     serialize :preferences
-      #   end
-      def serialize(attr_name, class_name = Object)
-        serialized_attributes[attr_name.to_s] = class_name
-      end
-
-      # Returns a hash of all the attributes that have been specified for serialization as keys and their class restriction as values.
-      def serialized_attributes
-        read_inheritable_attribute(:attr_serialized) or write_inheritable_attribute(:attr_serialized, {})
-      end
-
-      # Guesses the table name (in forced lower-case) based on the name of the class in the inheritance hierarchy descending
-      # directly from ActiveRecord::Base. So if the hierarchy looks like: Reply < Message < ActiveRecord::Base, then Message is used
-      # to guess the table name even when called on Reply. The rules used to do the guess are handled by the Inflector class
-      # in Active Support, which knows almost all common English inflections. You can add new inflections in config/initializers/inflections.rb.
-      #
-      # Nested classes are given table names prefixed by the singular form of
-      # the parent's table name. Enclosing modules are not considered.
-      #
-      # ==== Examples
-      #
-      #   class Invoice < ActiveRecord::Base; end;
-      #   file                  class               table_name
-      #   invoice.rb            Invoice             invoices
-      #
-      #   class Invoice < ActiveRecord::Base; class Lineitem < ActiveRecord::Base; end; end;
-      #   file                  class               table_name
-      #   invoice.rb            Invoice::Lineitem   invoice_lineitems
-      #
-      #   module Invoice; class Lineitem < ActiveRecord::Base; end; end;
-      #   file                  class               table_name
-      #   invoice/lineitem.rb   Invoice::Lineitem   lineitems
-      #
-      # Additionally, the class-level +table_name_prefix+ is prepended and the
-      # +table_name_suffix+ is appended.  So if you have "myapp_" as a prefix,
-      # the table name guess for an Invoice class becomes "myapp_invoices".
-      # Invoice::Lineitem becomes "myapp_invoice_lineitems".
-      #
-      # You can also overwrite this class method to allow for unguessable
-      # links, such as a Mouse class with a link to a "mice" table. Example:
-      #
-      #   class Mouse < ActiveRecord::Base
-      #     set_table_name "mice"
-      #   end
-      def table_name
-        reset_table_name
-      end
-
-      def reset_table_name #:nodoc:
-        base = base_class
-
-        name =
-          # STI subclasses always use their superclass' table.
-          unless self == base
-            base.table_name
-          else
-            # Nested classes are prefixed with singular parent table name.
-            if parent < ActiveRecord::Base && !parent.abstract_class?
-              contained = parent.table_name
-              contained = contained.singularize if parent.pluralize_table_names
-              contained << '_'
-            end
-            name = "#{table_name_prefix}#{contained}#{undecorated_table_name(base.name)}#{table_name_suffix}"
-          end
-
-        set_table_name(name)
-        name
-      end
-
-      # Defines the primary key field -- can be overridden in subclasses. Overwriting will negate any effect of the
-      # primary_key_prefix_type setting, though.
-      def primary_key
-        reset_primary_key
-      end
-
-      def reset_primary_key #:nodoc:
-        key = get_primary_key(base_class.name)
-        set_primary_key(key)
-        key
-      end
-
-      def get_primary_key(base_name) #:nodoc:
-        key = 'id'
-        case primary_key_prefix_type
-          when :table_name
-            key = base_name.to_s.foreign_key(false)
-          when :table_name_with_underscore
-            key = base_name.to_s.foreign_key
-        end
-        key
-      end
-
-      # Defines the column name for use with single table inheritance
-      # -- can be set in subclasses like so: self.inheritance_column = "type_id"
-      def inheritance_column
-        @inheritance_column ||= "type".freeze
-      end
-
-      # Lazy-set the sequence name to the connection's default.  This method
-      # is only ever called once since set_sequence_name overrides it.
-      def sequence_name #:nodoc:
-        reset_sequence_name
-      end
-
-      def reset_sequence_name #:nodoc:
-        default = connection.default_sequence_name(table_name, primary_key)
-        set_sequence_name(default)
-        default
-      end
-
-      # Sets the table name to use to the given value, or (if the value
-      # is nil or false) to the value returned by the given block.
-      #
-      #   class Project < ActiveRecord::Base
-      #     set_table_name "project"
-      #   end
-      def set_table_name(value = nil, &block)
-        define_attr_method :table_name, value, &block
-      end
-      alias :table_name= :set_table_name
-
-      # Sets the name of the primary key column to use to the given value,
-      # or (if the value is nil or false) to the value returned by the given
-      # block.
-      #
-      #   class Project < ActiveRecord::Base
-      #     set_primary_key "sysid"
-      #   end
-      def set_primary_key(value = nil, &block)
-        define_attr_method :primary_key, value, &block
-      end
-      alias :primary_key= :set_primary_key
-
-      # Sets the name of the inheritance column to use to the given value,
-      # or (if the value # is nil or false) to the value returned by the
-      # given block.
-      #
-      #   class Project < ActiveRecord::Base
-      #     set_inheritance_column do
-      #       original_inheritance_column + "_id"
-      #     end
-      #   end
-      def set_inheritance_column(value = nil, &block)
-        define_attr_method :inheritance_column, value, &block
-      end
-      alias :inheritance_column= :set_inheritance_column
-
-      # Sets the name of the sequence to use when generating ids to the given
-      # value, or (if the value is nil or false) to the value returned by the
-      # given block. This is required for Oracle and is useful for any
-      # database which relies on sequences for primary key generation.
-      #
-      # If a sequence name is not explicitly set when using Oracle or Firebird,
-      # it will default to the commonly used pattern of: #{table_name}_seq
-      #
-      # If a sequence name is not explicitly set when using PostgreSQL, it
-      # will discover the sequence corresponding to your primary key for you.
-      #
-      #   class Project < ActiveRecord::Base
-      #     set_sequence_name "projectseq"   # default would have been "project_seq"
-      #   end
-      def set_sequence_name(value = nil, &block)
-        define_attr_method :sequence_name, value, &block
-      end
-      alias :sequence_name= :set_sequence_name
-
-      # Turns the +table_name+ back into a class name following the reverse rules of +table_name+.
-      def class_name(table_name = table_name) # :nodoc:
-        # remove any prefix and/or suffix from the table name
-        class_name = table_name[table_name_prefix.length..-(table_name_suffix.length + 1)].camelize
-        class_name = class_name.singularize if pluralize_table_names
-        class_name
-      end
-
-      # Indicates whether the table associated with this class exists
-      def table_exists?
-        connection.table_exists?(table_name)
-      end
-
-      # Returns an array of column objects for the table associated with this class.
-      def columns
-        unless defined?(@columns) && @columns
-          @columns = connection.columns(table_name, "#{name} Columns")
-          @columns.each { |column| column.primary = column.name == primary_key }
-        end
-        @columns
-      end
-
-      # Returns a hash of column objects for the table associated with this class.
-      def columns_hash
-        @columns_hash ||= columns.inject({}) { |hash, column| hash[column.name] = column; hash }
-      end
-
-      # Returns an array of column names as strings.
-      def column_names
-        @column_names ||= columns.map { |column| column.name }
-      end
-
-      # Returns an array of column objects where the primary id, all columns ending in "_id" or "_count",
-      # and columns used for single table inheritance have been removed.
-      def content_columns
-        @content_columns ||= columns.reject { |c| c.primary || c.name =~ /(_id|_count)$/ || c.name == inheritance_column }
-      end
-
-      # Returns a hash of all the methods added to query each of the columns in the table with the name of the method as the key
-      # and true as the value. This makes it possible to do O(1) lookups in respond_to? to check if a given method for attribute
-      # is available.
-      def column_methods_hash #:nodoc:
-        @dynamic_methods_hash ||= column_names.inject(Hash.new(false)) do |methods, attr|
-          attr_name = attr.to_s
-          methods[attr.to_sym]       = attr_name
-          methods["#{attr}=".to_sym] = attr_name
-          methods["#{attr}?".to_sym] = attr_name
-          methods["#{attr}_before_type_cast".to_sym] = attr_name
-          methods
-        end
-      end
-
-      # Resets all the cached information about columns, which will cause them
-      # to be reloaded on the next request.
-      #
-      # The most common usage pattern for this method is probably in a migration,
-      # when just after creating a table you want to populate it with some default
-      # values, eg:
-      #
-      #  class CreateJobLevels < ActiveRecord::Migration
-      #    def self.up
-      #      create_table :job_levels do |t|
-      #        t.integer :id
-      #        t.string :name
-      #
-      #        t.timestamps
-      #      end
-      #
-      #      JobLevel.reset_column_information
-      #      %w{assistant executive manager director}.each do |type|
-      #        JobLevel.create(:name => type)
-      #      end
-      #    end
-      #
-      #    def self.down
-      #      drop_table :job_levels
-      #    end
-      #  end
-      def reset_column_information
-        generated_methods.each { |name| undef_method(name) }
-        @column_names = @columns = @columns_hash = @content_columns = @dynamic_methods_hash = @generated_methods = @inheritance_column = nil
-      end
-
-      def reset_column_information_and_inheritable_attributes_for_all_subclasses#:nodoc:
-        subclasses.each { |klass| klass.reset_inheritable_attributes; klass.reset_column_information }
-      end
-
-      def self_and_descendants_from_active_record#nodoc:
-        klass = self
-        classes = [klass]
-        while klass != klass.base_class  
-          classes << klass = klass.superclass
-        end
-        classes
-      rescue
-        # OPTIMIZE this rescue is to fix this test: ./test/cases/reflection_test.rb:56:in `test_human_name_for_column'
-        # Appearantly the method base_class causes some trouble.
-        # It now works for sure.
-        [self]
-      end
-
-      # Transforms attribute key names into a more humane format, such as "First name" instead of "first_name". Example:
-      #   Person.human_attribute_name("first_name") # => "First name"
-      # This used to be depricated in favor of humanize, but is now preferred, because it automatically uses the I18n
-      # module now.
-      # Specify +options+ with additional translating options.
-      def human_attribute_name(attribute_key_name, options = {})
-        defaults = self_and_descendants_from_active_record.map do |klass|
-          :"#{klass.name.underscore}.#{attribute_key_name}"
-        end
-        defaults << options[:default] if options[:default]
-        defaults.flatten!
-        defaults << attribute_key_name.to_s.humanize
-        options[:count] ||= 1
-        I18n.translate(defaults.shift, options.merge(:default => defaults, :scope => [:activerecord, :attributes]))
-      end
-
-      # Transform the modelname into a more humane format, using I18n.
-      # Defaults to the basic humanize method.
-      # Default scope of the translation is activerecord.models
-      # Specify +options+ with additional translating options.
-      def human_name(options = {})
-        defaults = self_and_descendants_from_active_record.map do |klass|
-          :"#{klass.name.underscore}"
-        end 
-        defaults << self.name.humanize
-        I18n.translate(defaults.shift, {:scope => [:activerecord, :models], :count => 1, :default => defaults}.merge(options))
-      end
-
-      # True if this isn't a concrete subclass needing a STI type condition.
-      def descends_from_active_record?
-        if superclass.abstract_class?
-          superclass.descends_from_active_record?
-        else
-          superclass == Base || !columns_hash.include?(inheritance_column)
-        end
-      end
-
-      def finder_needs_type_condition? #:nodoc:
-        # This is like this because benchmarking justifies the strange :false stuff
-        :true == (@finder_needs_type_condition ||= descends_from_active_record? ? :false : :true)
-      end
-
-      # Returns a string like 'Post id:integer, title:string, body:text'
-      def inspect
-        if self == Base
-          super
-        elsif abstract_class?
-          "#{super}(abstract)"
-        elsif table_exists?
-          attr_list = columns.map { |c| "#{c.name}: #{c.type}" } * ', '
-          "#{super}(#{attr_list})"
-        else
-          "#{super}(Table doesn't exist)"
-        end
-      end
-
-      def quote_value(value, column = nil) #:nodoc:
-        connection.quote(value,column)
-      end
-
-      # Used to sanitize objects before they're used in an SQL SELECT statement. Delegates to <tt>connection.quote</tt>.
-      def sanitize(object) #:nodoc:
-        connection.quote(object)
-      end
-
-      # Log and benchmark multiple statements in a single block. Example:
-      #
-      #   Project.benchmark("Creating project") do
-      #     project = Project.create("name" => "stuff")
-      #     project.create_manager("name" => "David")
-      #     project.milestones << Milestone.find(:all)
-      #   end
-      #
-      # The benchmark is only recorded if the current level of the logger is less than or equal to the <tt>log_level</tt>,
-      # which makes it easy to include benchmarking statements in production software that will remain inexpensive because
-      # the benchmark will only be conducted if the log level is low enough.
-      #
-      # The logging of the multiple statements is turned off unless <tt>use_silence</tt> is set to false.
-      def benchmark(title, log_level = Logger::DEBUG, use_silence = true)
-        if logger && logger.level <= log_level
-          result = nil
-          ms = Benchmark.ms { result = use_silence ? silence { yield } : yield }
-          logger.add(log_level, '%s (%.1fms)' % [title, ms])
-          result
-        else
-          yield
-        end
-      end
-
-      # Silences the logger for the duration of the block.
-      def silence
-        old_logger_level, logger.level = logger.level, Logger::ERROR if logger
-        yield
-      ensure
-        logger.level = old_logger_level if logger
-      end
-
-      # Overwrite the default class equality method to provide support for association proxies.
-      def ===(object)
-        object.is_a?(self)
-      end
-
-      # Returns the base AR subclass that this class descends from. If A
-      # extends AR::Base, A.base_class will return A. If B descends from A
-      # through some arbitrarily deep hierarchy, B.base_class will return A.
-      def base_class
-        class_of_active_record_descendant(self)
-      end
-
-      # Set this to true if this is an abstract class (see <tt>abstract_class?</tt>).
-      attr_accessor :abstract_class
-
-      # Returns whether this class is a base AR class.  If A is a base class and
-      # B descends from A, then B.base_class will return B.
-      def abstract_class?
-        defined?(@abstract_class) && @abstract_class == true
-      end
-
-      def respond_to?(method_id, include_private = false)
-        if match = DynamicFinderMatch.match(method_id)
-          return true if all_attributes_exists?(match.attribute_names)
-        elsif match = DynamicScopeMatch.match(method_id)
-          return true if all_attributes_exists?(match.attribute_names)
-        end
-
-        super
-      end
-
-      def sti_name
-        store_full_sti_class ? name : name.demodulize
-      end
-
-      # Merges conditions so that the result is a valid +condition+
-      def merge_conditions(*conditions)
-        segments = []
-
-        conditions.each do |condition|
-          unless condition.blank?
-            sql = sanitize_sql(condition)
-            segments << sql unless sql.blank?
-          end
-        end
-
-        "(#{segments.join(') AND (')})" unless segments.empty?
-      end
-
-      private
-        def find_initial(options)
-          options.update(:limit => 1)
-          find_every(options).first
-        end
-
-        def find_last(options)
-          order = options[:order]
-
-          if order
-            order = reverse_sql_order(order)
-          elsif !scoped?(:find, :order)
-            order = "#{table_name}.#{primary_key} DESC"
-          end
-
-          if scoped?(:find, :order)
-            scope = scope(:find)
-            original_scoped_order = scope[:order]
-            scope[:order] = reverse_sql_order(original_scoped_order)
-          end
-
-          begin
-            find_initial(options.merge({ :order => order }))
-          ensure
-            scope[:order] = original_scoped_order if original_scoped_order
-          end
-        end
-
-        def reverse_sql_order(order_query)
-          reversed_query = order_query.to_s.split(/,/).each { |s|
-            if s.match(/\s(asc|ASC)$/)
-              s.gsub!(/\s(asc|ASC)$/, ' DESC')
-            elsif s.match(/\s(desc|DESC)$/)
-              s.gsub!(/\s(desc|DESC)$/, ' ASC')
-            elsif !s.match(/\s(asc|ASC|desc|DESC)$/)
-              s.concat(' DESC')
-            end
-          }.join(',')
-        end
-
-        def find_every(options)
-          include_associations = merge_includes(scope(:find, :include), options[:include])
-
-          if include_associations.any? && references_eager_loaded_tables?(options)
-            records = find_with_associations(options)
-          else
-            records = find_by_sql(construct_finder_sql(options))
-            if include_associations.any?
-              preload_associations(records, include_associations)
-            end
-          end
-
-          records.each { |record| record.readonly! } if options[:readonly]
-
-          records
-        end
-
-        def find_from_ids(ids, options)
-          expects_array = ids.first.kind_of?(Array)
-          return ids.first if expects_array && ids.first.empty?
-
-          ids = ids.flatten.compact.uniq
-
-          case ids.size
-            when 0
-              raise RecordNotFound, "Couldn't find #{name} without an ID"
-            when 1
-              result = find_one(ids.first, options)
-              expects_array ? [ result ] : result
-            else
-              find_some(ids, options)
-          end
-        end
-
-        def find_one(id, options)
-          conditions = " AND (#{sanitize_sql(options[:conditions])})" if options[:conditions]
-          options.update :conditions => "#{quoted_table_name}.#{connection.quote_column_name(primary_key)} = #{quote_value(id,columns_hash[primary_key])}#{conditions}"
-
-          # Use find_every(options).first since the primary key condition
-          # already ensures we have a single record. Using find_initial adds
-          # a superfluous :limit => 1.
-          if result = find_every(options).first
-            result
-          else
-            raise RecordNotFound, "Couldn't find #{name} with ID=#{id}#{conditions}"
-          end
-        end
-
-        def find_some(ids, options)
-          conditions = " AND (#{sanitize_sql(options[:conditions])})" if options[:conditions]
-          ids_list   = ids.map { |id| quote_value(id,columns_hash[primary_key]) }.join(',')
-          options.update :conditions => "#{quoted_table_name}.#{connection.quote_column_name(primary_key)} IN (#{ids_list})#{conditions}"
-
-          result = find_every(options)
-
-          # Determine expected size from limit and offset, not just ids.size.
-          expected_size =
-            if options[:limit] && ids.size > options[:limit]
-              options[:limit]
-            else
-              ids.size
-            end
-
-          # 11 ids with limit 3, offset 9 should give 2 results.
-          if options[:offset] && (ids.size - options[:offset] < expected_size)
-            expected_size = ids.size - options[:offset]
-          end
-
-          if result.size == expected_size
-            result
-          else
-            raise RecordNotFound, "Couldn't find all #{name.pluralize} with IDs (#{ids_list})#{conditions} (found #{result.size} results, but was looking for #{expected_size})"
-          end
-        end
-
-        # Finder methods must instantiate through this method to work with the
-        # single-table inheritance model that makes it possible to create
-        # objects of different types from the same table.
-        def instantiate(record)
-          object =
-            if subclass_name = record[inheritance_column]
-              # No type given.
-              if subclass_name.empty?
-                allocate
-
-              else
-                # Ignore type if no column is present since it was probably
-                # pulled in from a sloppy join.
-                unless columns_hash.include?(inheritance_column)
-                  allocate
-
-                else
-                  begin
-                    compute_type(subclass_name).allocate
-                  rescue NameError
-                    raise SubclassNotFound,
-                      "The single-table inheritance mechanism failed to locate the subclass: '#{record[inheritance_column]}'. " +
-                      "This error is raised because the column '#{inheritance_column}' is reserved for storing the class in case of inheritance. " +
-                      "Please rename this column if you didn't intend it to be used for storing the inheritance class " +
-                      "or overwrite #{self.to_s}.inheritance_column to use another column for that information."
-                  end
-                end
-              end
-            else
-              allocate
-            end
-
-          object.instance_variable_set("@attributes", record)
-          object.instance_variable_set("@attributes_cache", Hash.new)
-
-          if object.respond_to_without_attributes?(:after_find)
-            object.send(:callback, :after_find)
-          end
-
-          if object.respond_to_without_attributes?(:after_initialize)
-            object.send(:callback, :after_initialize)
-          end
-
-          object
-        end
-
-        # Nest the type name in the same module as this class.
-        # Bar is "MyApp::Business::Bar" relative to MyApp::Business::Foo
-        def type_name_with_module(type_name)
-          if store_full_sti_class
-            type_name
-          else
-            (/^::/ =~ type_name) ? type_name : "#{parent.name}::#{type_name}"
-          end
-        end
-
-        def default_select(qualified)
-          if qualified
-            quoted_table_name + '.*'
-          else
-            '*'
-          end
-        end
-
-        def construct_finder_sql(options)
-          scope = scope(:find)
-          sql  = "SELECT #{options[:select] || (scope && scope[:select]) || default_select(options[:joins] || (scope && scope[:joins]))} "
-          sql << "FROM #{options[:from]  || (scope && scope[:from]) || quoted_table_name} "
-
-          add_joins!(sql, options[:joins], scope)
-          add_conditions!(sql, options[:conditions], scope)
-
-          add_group!(sql, options[:group], options[:having], scope)
-          add_order!(sql, options[:order], scope)
-          add_limit!(sql, options, scope)
-          add_lock!(sql, options, scope)
-
-          sql
-        end
-
-        # Merges includes so that the result is a valid +include+
-        def merge_includes(first, second)
-         (safe_to_array(first) + safe_to_array(second)).uniq
-        end
-
-        def merge_joins(*joins)
-          if joins.any?{|j| j.is_a?(String) || array_of_strings?(j) }
-            joins = joins.collect do |join|
-              join = [join] if join.is_a?(String)
-              unless array_of_strings?(join)
-                join_dependency = ActiveRecord::Associations::ClassMethods::InnerJoinDependency.new(self, join, nil)
-                join = join_dependency.join_associations.collect { |assoc| assoc.association_join }
-              end
-              join
-            end
-            joins.flatten.map{|j| j.strip}.uniq
-          else
-            joins.collect{|j| safe_to_array(j)}.flatten.uniq
-          end
-        end
-
-        # Object#to_a is deprecated, though it does have the desired behavior
-        def safe_to_array(o)
-          case o
-          when NilClass
-            []
-          when Array
-            o
-          else
-            [o]
-          end
-        end
-
-        def array_of_strings?(o)
-          o.is_a?(Array) && o.all?{|obj| obj.is_a?(String)}
-        end
-
-        def add_order!(sql, order, scope = :auto)
-          scope = scope(:find) if :auto == scope
-          scoped_order = scope[:order] if scope
-          if order
-            sql << " ORDER BY #{order}"
-            if scoped_order && scoped_order != order
-              sql << ", #{scoped_order}"
-            end
-          else
-            sql << " ORDER BY #{scoped_order}" if scoped_order
-          end
-        end
-
-        def add_group!(sql, group, having, scope = :auto)
-          if group
-            sql << " GROUP BY #{group}"
-            sql << " HAVING #{sanitize_sql_for_conditions(having)}" if having
-          else
-            scope = scope(:find) if :auto == scope
-            if scope && (scoped_group = scope[:group])
-              sql << " GROUP BY #{scoped_group}"
-              sql << " HAVING #{sanitize_sql_for_conditions(scope[:having])}" if scope[:having]
-            end
-          end
-        end
-
-        # The optional scope argument is for the current <tt>:find</tt> scope.
-        def add_limit!(sql, options, scope = :auto)
-          scope = scope(:find) if :auto == scope
-
-          if scope
-            options[:limit] ||= scope[:limit]
-            options[:offset] ||= scope[:offset]
-          end
-
-          connection.add_limit_offset!(sql, options)
-        end
-
-        # The optional scope argument is for the current <tt>:find</tt> scope.
-        # The <tt>:lock</tt> option has precedence over a scoped <tt>:lock</tt>.
-        def add_lock!(sql, options, scope = :auto)
-          scope = scope(:find) if :auto == scope
-          options = options.reverse_merge(:lock => scope[:lock]) if scope
-          connection.add_lock!(sql, options)
-        end
-
-        # The optional scope argument is for the current <tt>:find</tt> scope.
-        def add_joins!(sql, joins, scope = :auto)
-          scope = scope(:find) if :auto == scope
-          merged_joins = scope && scope[:joins] && joins ? merge_joins(scope[:joins], joins) : (joins || scope && scope[:joins])
-          case merged_joins
-          when Symbol, Hash, Array
-            if array_of_strings?(merged_joins)
-              sql << merged_joins.join(' ') + " "
-            else
-              join_dependency = ActiveRecord::Associations::ClassMethods::InnerJoinDependency.new(self, merged_joins, nil)
-              sql << " #{join_dependency.join_associations.collect { |assoc| assoc.association_join }.join} "
-            end
-          when String
-            sql << " #{merged_joins} "
-          end
-        end
-
-        # Adds a sanitized version of +conditions+ to the +sql+ string. Note that the passed-in +sql+ string is changed.
-        # The optional scope argument is for the current <tt>:find</tt> scope.
-        def add_conditions!(sql, conditions, scope = :auto)
-          scope = scope(:find) if :auto == scope
-          conditions = [conditions]
-          conditions << scope[:conditions] if scope
-          conditions << type_condition if finder_needs_type_condition?
-          merged_conditions = merge_conditions(*conditions)
-          sql << "WHERE #{merged_conditions} " unless merged_conditions.blank?
-        end
-
-        def type_condition(table_alias=nil)
-          quoted_table_alias = self.connection.quote_table_name(table_alias || table_name)
-          quoted_inheritance_column = connection.quote_column_name(inheritance_column)
-          type_condition = subclasses.inject("#{quoted_table_alias}.#{quoted_inheritance_column} = '#{sti_name}' ") do |condition, subclass|
-            condition << "OR #{quoted_table_alias}.#{quoted_inheritance_column} = '#{subclass.sti_name}' "
-          end
-
-          " (#{type_condition}) "
-        end
-
-        # Guesses the table name, but does not decorate it with prefix and suffix information.
-        def undecorated_table_name(class_name = base_class.name)
-          table_name = class_name.to_s.demodulize.underscore
-          table_name = table_name.pluralize if pluralize_table_names
-          table_name
-        end
-
-        # Enables dynamic finders like <tt>find_by_user_name(user_name)</tt> and <tt>find_by_user_name_and_password(user_name, password)</tt>
-        # that are turned into <tt>find(:first, :conditions => ["user_name = ?", user_name])</tt> and
-        # <tt>find(:first, :conditions => ["user_name = ? AND password = ?", user_name, password])</tt> respectively. Also works for
-        # <tt>find(:all)</tt> by using <tt>find_all_by_amount(50)</tt> that is turned into <tt>find(:all, :conditions => ["amount = ?", 50])</tt>.
-        #
-        # It's even possible to use all the additional parameters to +find+. For example, the full interface for +find_all_by_amount+
-        # is actually <tt>find_all_by_amount(amount, options)</tt>.
-        #
-        # Also enables dynamic scopes like scoped_by_user_name(user_name) and scoped_by_user_name_and_password(user_name, password) that
-        # are turned into scoped(:conditions => ["user_name = ?", user_name]) and scoped(:conditions => ["user_name = ? AND password = ?", user_name, password])
-        # respectively.
-        #
-        # Each dynamic finder, scope or initializer/creator is also defined in the class after it is first invoked, so that future
-        # attempts to use it do not run through method_missing.
-        def method_missing(method_id, *arguments, &block)
-          if match = DynamicFinderMatch.match(method_id)
-            attribute_names = match.attribute_names
-            super unless all_attributes_exists?(attribute_names)
-            if match.finder?
-              finder = match.finder
-              bang = match.bang?
-              # def self.find_by_login_and_activated(*args)
-              #   options = args.extract_options!
-              #   attributes = construct_attributes_from_arguments(
-              #     [:login,:activated],
-              #     args
-              #   )
-              #   finder_options = { :conditions => attributes }
-              #   validate_find_options(options)
-              #   set_readonly_option!(options)
-              #
-              #   if options[:conditions]
-              #     with_scope(:find => finder_options) do
-              #       find(:first, options)
-              #     end
-              #   else
-              #     find(:first, options.merge(finder_options))
-              #   end
-              # end
-              self.class_eval %{
-                def self.#{method_id}(*args)
-                  options = args.extract_options!
-                  attributes = construct_attributes_from_arguments(
-                    [:#{attribute_names.join(',:')}],
-                    args
-                  )
-                  finder_options = { :conditions => attributes }
-                  validate_find_options(options)
-                  set_readonly_option!(options)
-
-                  #{'result = ' if bang}if options[:conditions]
-                    with_scope(:find => finder_options) do
-                      find(:#{finder}, options)
-                    end
-                  else
-                    find(:#{finder}, options.merge(finder_options))
-                  end
-                  #{'result || raise(RecordNotFound, "Couldn\'t find #{name} with #{attributes.to_a.collect {|pair| "#{pair.first} = #{pair.second}"}.join(\', \')}")' if bang}
-                end
-              }, __FILE__, __LINE__
-              send(method_id, *arguments)
-            elsif match.instantiator?
-              instantiator = match.instantiator
-              # def self.find_or_create_by_user_id(*args)
-              #   guard_protected_attributes = false
-              #
-              #   if args[0].is_a?(Hash)
-              #     guard_protected_attributes = true
-              #     attributes = args[0].with_indifferent_access
-              #     find_attributes = attributes.slice(*[:user_id])
-              #   else
-              #     find_attributes = attributes = construct_attributes_from_arguments([:user_id], args)
-              #   end
-              #
-              #   options = { :conditions => find_attributes }
-              #   set_readonly_option!(options)
-              #
-              #   record = find(:first, options)
-              #
-              #   if record.nil?
-              #     record = self.new { |r| r.send(:attributes=, attributes, guard_protected_attributes) }
-              #     yield(record) if block_given?
-              #     record.save
-              #     record
-              #   else
-              #     record
-              #   end
-              # end
-              self.class_eval %{
-                def self.#{method_id}(*args)
-                  guard_protected_attributes = false
-
-                  if args[0].is_a?(Hash)
-                    guard_protected_attributes = true
-                    attributes = args[0].with_indifferent_access
-                    find_attributes = attributes.slice(*[:#{attribute_names.join(',:')}])
-                  else
-                    find_attributes = attributes = construct_attributes_from_arguments([:#{attribute_names.join(',:')}], args)
-                  end
-
-                  options = { :conditions => find_attributes }
-                  set_readonly_option!(options)
-
-                  record = find(:first, options)
-
-                  if record.nil?
-                    record = self.new { |r| r.send(:attributes=, attributes, guard_protected_attributes) }
-                    #{'yield(record) if block_given?'}
-                    #{'record.save' if instantiator == :create}
-                    record
-                  else
-                    record
-                  end
-                end
-              }, __FILE__, __LINE__
-              send(method_id, *arguments, &block)
-            end
-          elsif match = DynamicScopeMatch.match(method_id)
-            attribute_names = match.attribute_names
-            super unless all_attributes_exists?(attribute_names)
-            if match.scope?
-              self.class_eval %{
-                def self.#{method_id}(*args)                        # def self.scoped_by_user_name_and_password(*args)
-                  options = args.extract_options!                   #   options = args.extract_options!
-                  attributes = construct_attributes_from_arguments( #   attributes = construct_attributes_from_arguments(
-                    [:#{attribute_names.join(',:')}], args          #     [:user_name, :password], args
-                  )                                                 #   )
-                                                                    # 
-                  scoped(:conditions => attributes)                 #   scoped(:conditions => attributes)
-                end                                                 # end
-              }, __FILE__, __LINE__
-              send(method_id, *arguments)
-            end
-          else
-            super
-          end
-        end
-
-        def construct_attributes_from_arguments(attribute_names, arguments)
-          attributes = {}
-          attribute_names.each_with_index { |name, idx| attributes[name] = arguments[idx] }
-          attributes
-        end
-
-        # Similar in purpose to +expand_hash_conditions_for_aggregates+.
-        def expand_attribute_names_for_aggregates(attribute_names)
-          expanded_attribute_names = []
-          attribute_names.each do |attribute_name|
-            unless (aggregation = reflect_on_aggregation(attribute_name.to_sym)).nil?
-              aggregate_mapping(aggregation).each do |field_attr, aggregate_attr|
-                expanded_attribute_names << field_attr
-              end
-            else
-              expanded_attribute_names << attribute_name
-            end
-          end
-          expanded_attribute_names
-        end
-
-        def all_attributes_exists?(attribute_names)
-          attribute_names = expand_attribute_names_for_aggregates(attribute_names)
-          attribute_names.all? { |name| column_methods_hash.include?(name.to_sym) }
-        end
-
-        def attribute_condition(quoted_column_name, argument)
-          case argument
-            when nil   then "#{quoted_column_name} IS ?"
-            when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::NamedScope::Scope then "#{quoted_column_name} IN (?)"
-            when Range then if argument.exclude_end?
-                              "#{quoted_column_name} >= ? AND #{quoted_column_name} < ?"
-                            else
-                              "#{quoted_column_name} BETWEEN ? AND ?"
-                            end
-            else            "#{quoted_column_name} = ?"
-          end
-        end
-
-        # Interpret Array and Hash as conditions and anything else as an id.
-        def expand_id_conditions(id_or_conditions)
-          case id_or_conditions
-            when Array, Hash then id_or_conditions
-            else sanitize_sql(primary_key => id_or_conditions)
-          end
-        end
-
-        # Defines an "attribute" method (like +inheritance_column+ or
-        # +table_name+). A new (class) method will be created with the
-        # given name. If a value is specified, the new method will
-        # return that value (as a string). Otherwise, the given block
-        # will be used to compute the value of the method.
-        #
-        # The original method will be aliased, with the new name being
-        # prefixed with "original_". This allows the new method to
-        # access the original value.
-        #
-        # Example:
-        #
-        #   class A < ActiveRecord::Base
-        #     define_attr_method :primary_key, "sysid"
-        #     define_attr_method( :inheritance_column ) do
-        #       original_inheritance_column + "_id"
-        #     end
-        #   end
-        def define_attr_method(name, value=nil, &block)
-          sing = class << self; self; end
-          sing.send :alias_method, "original_#{name}", name
-          if block_given?
-            sing.send :define_method, name, &block
-          else
-            # use eval instead of a block to work around a memory leak in dev
-            # mode in fcgi
-            sing.class_eval "def #{name}; #{value.to_s.inspect}; end"
-          end
-        end
-
-      protected
-        # Scope parameters to method calls within the block.  Takes a hash of method_name => parameters hash.
-        # method_name may be <tt>:find</tt> or <tt>:create</tt>. <tt>:find</tt> parameters may include the <tt>:conditions</tt>, <tt>:joins</tt>,
-        # <tt>:include</tt>, <tt>:offset</tt>, <tt>:limit</tt>, and <tt>:readonly</tt> options. <tt>:create</tt> parameters are an attributes hash.
-        #
-        #   class Article < ActiveRecord::Base
-        #     def self.create_with_scope
-        #       with_scope(:find => { :conditions => "blog_id = 1" }, :create => { :blog_id => 1 }) do
-        #         find(1) # => SELECT * from articles WHERE blog_id = 1 AND id = 1
-        #         a = create(1)
-        #         a.blog_id # => 1
-        #       end
-        #     end
-        #   end
-        #
-        # In nested scopings, all previous parameters are overwritten by the innermost rule, with the exception of
-        # <tt>:conditions</tt>, <tt>:include</tt>, and <tt>:joins</tt> options in <tt>:find</tt>, which are merged.
-        #
-        # <tt>:joins</tt> options are uniqued so multiple scopes can join in the same table without table aliasing
-        # problems.  If you need to join multiple tables, but still want one of the tables to be uniqued, use the
-        # array of strings format for your joins.
-        #
-        #   class Article < ActiveRecord::Base
-        #     def self.find_with_scope
-        #       with_scope(:find => { :conditions => "blog_id = 1", :limit => 1 }, :create => { :blog_id => 1 }) do
-        #         with_scope(:find => { :limit => 10 })
-        #           find(:all) # => SELECT * from articles WHERE blog_id = 1 LIMIT 10
-        #         end
-        #         with_scope(:find => { :conditions => "author_id = 3" })
-        #           find(:all) # => SELECT * from articles WHERE blog_id = 1 AND author_id = 3 LIMIT 1
-        #         end
-        #       end
-        #     end
-        #   end
-        #
-        # You can ignore any previous scopings by using the <tt>with_exclusive_scope</tt> method.
-        #
-        #   class Article < ActiveRecord::Base
-        #     def self.find_with_exclusive_scope
-        #       with_scope(:find => { :conditions => "blog_id = 1", :limit => 1 }) do
-        #         with_exclusive_scope(:find => { :limit => 10 })
-        #           find(:all) # => SELECT * from articles LIMIT 10
-        #         end
-        #       end
-        #     end
-        #   end
-        #
-        # *Note*: the +:find+ scope also has effect on update and deletion methods,
-        # like +update_all+ and +delete_all+.
-        def with_scope(method_scoping = {}, action = :merge, &block)
-          method_scoping = method_scoping.method_scoping if method_scoping.respond_to?(:method_scoping)
-
-          # Dup first and second level of hash (method and params).
-          method_scoping = method_scoping.inject({}) do |hash, (method, params)|
-            hash[method] = (params == true) ? params : params.dup
-            hash
-          end
-
-          method_scoping.assert_valid_keys([ :find, :create ])
-
-          if f = method_scoping[:find]
-            f.assert_valid_keys(VALID_FIND_OPTIONS)
-            set_readonly_option! f
-          end
-
-          # Merge scopings
-          if [:merge, :reverse_merge].include?(action) && current_scoped_methods
-            method_scoping = current_scoped_methods.inject(method_scoping) do |hash, (method, params)|
-              case hash[method]
-                when Hash
-                  if method == :find
-                    (hash[method].keys + params.keys).uniq.each do |key|
-                      merge = hash[method][key] && params[key] # merge if both scopes have the same key
-                      if key == :conditions && merge
-                        if params[key].is_a?(Hash) && hash[method][key].is_a?(Hash)
-                          hash[method][key] = merge_conditions(hash[method][key].deep_merge(params[key]))
-                        else
-                          hash[method][key] = merge_conditions(params[key], hash[method][key])
-                        end
-                      elsif key == :include && merge
-                        hash[method][key] = merge_includes(hash[method][key], params[key]).uniq
-                      elsif key == :joins && merge
-                        hash[method][key] = merge_joins(params[key], hash[method][key])
-                      else
-                        hash[method][key] = hash[method][key] || params[key]
-                      end
-                    end
-                  else
-                    if action == :reverse_merge
-                      hash[method] = hash[method].merge(params)
-                    else
-                      hash[method] = params.merge(hash[method])
-                    end
-                  end
-                else
-                  hash[method] = params
-              end
-              hash
-            end
-          end
-
-          self.scoped_methods << method_scoping
-          begin
-            yield
-          ensure
-            self.scoped_methods.pop
-          end
-        end
-
-        # Works like with_scope, but discards any nested properties.
-        def with_exclusive_scope(method_scoping = {}, &block)
-          with_scope(method_scoping, :overwrite, &block)
-        end
-
-        def subclasses #:nodoc:
-          @@subclasses[self] ||= []
-          @@subclasses[self] + extra = @@subclasses[self].inject([]) {|list, subclass| list + subclass.subclasses }
-        end
-
-        # Sets the default options for the model. The format of the
-        # <tt>options</tt> argument is the same as in find.
-        #
-        #   class Person < ActiveRecord::Base
-        #     default_scope :order => 'last_name, first_name'
-        #   end
-        def default_scope(options = {})
-          self.default_scoping << { :find => options, :create => options[:conditions].is_a?(Hash) ? options[:conditions] : {} }
-        end
-
-        # Test whether the given method and optional key are scoped.
-        def scoped?(method, key = nil) #:nodoc:
-          if current_scoped_methods && (scope = current_scoped_methods[method])
-            !key || !scope[key].nil?
-          end
-        end
-
-        # Retrieve the scope for the given method and optional key.
-        def scope(method, key = nil) #:nodoc:
-          if current_scoped_methods && (scope = current_scoped_methods[method])
-            key ? scope[key] : scope
-          end
-        end
-
-        def scoped_methods #:nodoc:
-          Thread.current[:"#{self}_scoped_methods"] ||= self.default_scoping.dup
-        end
-
-        def current_scoped_methods #:nodoc:
-          scoped_methods.last
-        end
-
-        # Returns the class type of the record using the current module as a prefix. So descendants of
-        # MyApp::Business::Account would appear as MyApp::Business::AccountSubclass.
-        def compute_type(type_name)
-          modularized_name = type_name_with_module(type_name)
-          silence_warnings do
-            begin
-              class_eval(modularized_name, __FILE__, __LINE__)
-            rescue NameError
-              class_eval(type_name, __FILE__, __LINE__)
-            end
-          end
-        end
-
-        # Returns the class descending directly from ActiveRecord::Base or an
-        # abstract class, if any, in the inheritance hierarchy.
-        def class_of_active_record_descendant(klass)
-          if klass.superclass == Base || klass.superclass.abstract_class?
-            klass
-          elsif klass.superclass.nil?
-            raise ActiveRecordError, "#{name} doesn't belong in a hierarchy descending from ActiveRecord"
-          else
-            class_of_active_record_descendant(klass.superclass)
-          end
-        end
-
-        # Returns the name of the class descending directly from Active Record in the inheritance hierarchy.
-        def class_name_of_active_record_descendant(klass) #:nodoc:
-          klass.base_class.name
-        end
-
-        # Accepts an array, hash, or string of SQL conditions and sanitizes
-        # them into a valid SQL fragment for a WHERE clause.
-        #   ["name='%s' and group_id='%s'", "foo'bar", 4]  returns  "name='foo''bar' and group_id='4'"
-        #   { :name => "foo'bar", :group_id => 4 }  returns "name='foo''bar' and group_id='4'"
-        #   "name='foo''bar' and group_id='4'" returns "name='foo''bar' and group_id='4'"
-        def sanitize_sql_for_conditions(condition, table_name = quoted_table_name)
-          return nil if condition.blank?
-
-          case condition
-            when Array; sanitize_sql_array(condition)
-            when Hash;  sanitize_sql_hash_for_conditions(condition, table_name)
-            else        condition
-          end
-        end
-        alias_method :sanitize_sql, :sanitize_sql_for_conditions
-
-        # Accepts an array, hash, or string of SQL conditions and sanitizes
-        # them into a valid SQL fragment for a SET clause.
-        #   { :name => nil, :group_id => 4 }  returns "name = NULL , group_id='4'"
-        def sanitize_sql_for_assignment(assignments)
-          case assignments
-            when Array; sanitize_sql_array(assignments)
-            when Hash;  sanitize_sql_hash_for_assignment(assignments)
-            else        assignments
-          end
-        end
-
-        def aggregate_mapping(reflection)
-          mapping = reflection.options[:mapping] || [reflection.name, reflection.name]
-          mapping.first.is_a?(Array) ? mapping : [mapping]
-        end
-
-        # Accepts a hash of SQL conditions and replaces those attributes
-        # that correspond to a +composed_of+ relationship with their expanded
-        # aggregate attribute values.
-        # Given:
-        #     class Person < ActiveRecord::Base
-        #       composed_of :address, :class_name => "Address",
-        #         :mapping => [%w(address_street street), %w(address_city city)]
-        #     end
-        # Then:
-        #     { :address => Address.new("813 abc st.", "chicago") }
-        #       # => { :address_street => "813 abc st.", :address_city => "chicago" }
-        def expand_hash_conditions_for_aggregates(attrs)
-          expanded_attrs = {}
-          attrs.each do |attr, value|
-            unless (aggregation = reflect_on_aggregation(attr.to_sym)).nil?
-              mapping = aggregate_mapping(aggregation)
-              mapping.each do |field_attr, aggregate_attr|
-                if mapping.size == 1 && !value.respond_to?(aggregate_attr)
-                  expanded_attrs[field_attr] = value
-                else
-                  expanded_attrs[field_attr] = value.send(aggregate_attr)
-                end
-              end
-            else
-              expanded_attrs[attr] = value
-            end
-          end
-          expanded_attrs
-        end
-
-        # Sanitizes a hash of attribute/value pairs into SQL conditions for a WHERE clause.
-        #   { :name => "foo'bar", :group_id => 4 }
-        #     # => "name='foo''bar' and group_id= 4"
-        #   { :status => nil, :group_id => [1,2,3] }
-        #     # => "status IS NULL and group_id IN (1,2,3)"
-        #   { :age => 13..18 }
-        #     # => "age BETWEEN 13 AND 18"
-        #   { 'other_records.id' => 7 }
-        #     # => "`other_records`.`id` = 7"
-        #   { :other_records => { :id => 7 } }
-        #     # => "`other_records`.`id` = 7"
-        # And for value objects on a composed_of relationship:
-        #   { :address => Address.new("123 abc st.", "chicago") }
-        #     # => "address_street='123 abc st.' and address_city='chicago'"
-        def sanitize_sql_hash_for_conditions(attrs, default_table_name = quoted_table_name)
-          attrs = expand_hash_conditions_for_aggregates(attrs)
-
-          conditions = attrs.map do |attr, value|
-            table_name = default_table_name
-
-            unless value.is_a?(Hash)
-              attr = attr.to_s
-
-              # Extract table name from qualified attribute names.
-              if attr.include?('.')
-                attr_table_name, attr = attr.split('.', 2)
-                attr_table_name = connection.quote_table_name(attr_table_name)
-              else
-                attr_table_name = table_name
-              end
-
-              attribute_condition("#{attr_table_name}.#{connection.quote_column_name(attr)}", value)
-            else
-              sanitize_sql_hash_for_conditions(value, connection.quote_table_name(attr.to_s))
-            end
-          end.join(' AND ')
-
-          replace_bind_variables(conditions, expand_range_bind_variables(attrs.values))
-        end
-        alias_method :sanitize_sql_hash, :sanitize_sql_hash_for_conditions
-
-        # Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause.
-        #   { :status => nil, :group_id => 1 }
-        #     # => "status = NULL , group_id = 1"
-        def sanitize_sql_hash_for_assignment(attrs)
-          attrs.map do |attr, value|
-            "#{connection.quote_column_name(attr)} = #{quote_bound_value(value)}"
-          end.join(', ')
-        end
-
-        # Accepts an array of conditions.  The array has each value
-        # sanitized and interpolated into the SQL statement.
-        #   ["name='%s' and group_id='%s'", "foo'bar", 4]  returns  "name='foo''bar' and group_id='4'"
-        def sanitize_sql_array(ary)
-          statement, *values = ary
-          if values.first.is_a?(Hash) and statement =~ /:\w+/
-            replace_named_bind_variables(statement, values.first)
-          elsif statement.include?('?')
-            replace_bind_variables(statement, values)
-          else
-            statement % values.collect { |value| connection.quote_string(value.to_s) }
-          end
-        end
-
-        alias_method :sanitize_conditions, :sanitize_sql
-
-        def replace_bind_variables(statement, values) #:nodoc:
-          raise_if_bind_arity_mismatch(statement, statement.count('?'), values.size)
-          bound = values.dup
-          statement.gsub('?') { quote_bound_value(bound.shift) }
-        end
-
-        def replace_named_bind_variables(statement, bind_vars) #:nodoc:
-          statement.gsub(/(:?):([a-zA-Z]\w*)/) do
-            if $1 == ':' # skip postgresql casts
-              $& # return the whole match
-            elsif bind_vars.include?(match = $2.to_sym)
-              quote_bound_value(bind_vars[match])
-            else
-              raise PreparedStatementInvalid, "missing value for :#{match} in #{statement}"
-            end
-          end
-        end
-
-        def expand_range_bind_variables(bind_vars) #:nodoc:
-          expanded = []
-
-          bind_vars.each do |var|
-            next if var.is_a?(Hash)
-
-            if var.is_a?(Range)
-              expanded << var.first
-              expanded << var.last
-            else
-              expanded << var
-            end
-          end
-
-          expanded
-        end
-
-        def quote_bound_value(value) #:nodoc:
-          if value.respond_to?(:map) && !value.acts_like?(:string)
-            if value.respond_to?(:empty?) && value.empty?
-              connection.quote(nil)
-            else
-              value.map { |v| connection.quote(v) }.join(',')
-            end
-          else
-            connection.quote(value)
-          end
-        end
-
-        def raise_if_bind_arity_mismatch(statement, expected, provided) #:nodoc:
-          unless expected == provided
-            raise PreparedStatementInvalid, "wrong number of bind variables (#{provided} for #{expected}) in: #{statement}"
-          end
-        end
-
-        VALID_FIND_OPTIONS = [ :conditions, :include, :joins, :limit, :offset,
-                               :order, :select, :readonly, :group, :having, :from, :lock ]
-
-        def validate_find_options(options) #:nodoc:
-          options.assert_valid_keys(VALID_FIND_OPTIONS)
-        end
-
-        def set_readonly_option!(options) #:nodoc:
-          # Inherit :readonly from finder scope if set.  Otherwise,
-          # if :joins is not blank then :readonly defaults to true.
-          unless options.has_key?(:readonly)
-            if scoped_readonly = scope(:find, :readonly)
-              options[:readonly] = scoped_readonly
-            elsif !options[:joins].blank? && !options[:select]
-              options[:readonly] = true
-            end
-          end
-        end
-
-        def encode_quoted_value(value) #:nodoc:
-          quoted_value = connection.quote(value)
-          quoted_value = "'#{quoted_value[1..-2].gsub(/\'/, "\\\\'")}'" if quoted_value.include?("\\\'") # (for ruby mode) "
-          quoted_value
-        end
-    end
-
-    public
-      # New objects can be instantiated as either empty (pass no construction parameter) or pre-set with
-      # attributes but not yet saved (pass a hash with key names matching the associated table column names).
-      # In both instances, valid attribute keys are determined by the column names of the associated table --
-      # hence you can't have attributes that aren't part of the table columns.
-      def initialize(attributes = nil)
-        @attributes = attributes_from_column_definition
-        @attributes_cache = {}
-        @new_record = true
-        ensure_proper_type
-        self.attributes = attributes unless attributes.nil?
-        self.class.send(:scope, :create).each { |att,value| self.send("#{att}=", value) } if self.class.send(:scoped?, :create)
-        result = yield self if block_given?
-        callback(:after_initialize) if respond_to_without_attributes?(:after_initialize)
-        result
-      end
-
-      # A model instance's primary key is always available as model.id
-      # whether you name it the default 'id' or set it to something else.
-      def id
-        attr_name = self.class.primary_key
-        column = column_for_attribute(attr_name)
-
-        self.class.send(:define_read_method, :id, attr_name, column)
-        # now that the method exists, call it
-        self.send attr_name.to_sym
-
-      end
-
-      # Returns a String, which Action Pack uses for constructing an URL to this
-      # object. The default implementation returns this record's id as a String,
-      # or nil if this record's unsaved.
-      #
-      # For example, suppose that you have a User model, and that you have a
-      # <tt>map.resources :users</tt> route. Normally, +user_path+ will
-      # construct a path with the user object's 'id' in it:
-      #
-      #   user = User.find_by_name('Phusion')
-      #   user_path(user)  # => "/users/1"
-      #
-      # You can override +to_param+ in your model to make +user_path+ construct
-      # a path using the user's name instead of the user's id:
-      #
-      #   class User < ActiveRecord::Base
-      #     def to_param  # overridden
-      #       name
-      #     end
-      #   end
-      #   
-      #   user = User.find_by_name('Phusion')
-      #   user_path(user)  # => "/users/Phusion"
-      def to_param
-        # We can't use alias_method here, because method 'id' optimizes itself on the fly.
-        (id = self.id) ? id.to_s : nil # Be sure to stringify the id for routes
-      end
-
-      # Returns a cache key that can be used to identify this record.
-      #
-      # ==== Examples
-      #
-      #   Product.new.cache_key     # => "products/new"
-      #   Product.find(5).cache_key # => "products/5" (updated_at not available)
-      #   Person.find(5).cache_key  # => "people/5-20071224150000" (updated_at available)
-      def cache_key
-        case
-        when new_record?
-          "#{self.class.model_name.cache_key}/new"
-        when timestamp = self[:updated_at]
-          "#{self.class.model_name.cache_key}/#{id}-#{timestamp.to_s(:number)}"
-        else
-          "#{self.class.model_name.cache_key}/#{id}"
-        end
-      end
-
-      def id_before_type_cast #:nodoc:
-        read_attribute_before_type_cast(self.class.primary_key)
-      end
-
-      def quoted_id #:nodoc:
-        quote_value(id, column_for_attribute(self.class.primary_key))
-      end
-
-      # Sets the primary ID.
-      def id=(value)
-        write_attribute(self.class.primary_key, value)
-      end
-
-      # Returns true if this object hasn't been saved yet -- that is, a record for the object doesn't exist yet; otherwise, returns false.
-      def new_record?
-        @new_record || false
-      end
-
-      # :call-seq:
-      #   save(perform_validation = true)
-      #
-      # Saves the model.
-      #
-      # If the model is new a record gets created in the database, otherwise
-      # the existing record gets updated.
-      #
-      # If +perform_validation+ is true validations run. If any of them fail
-      # the action is cancelled and +save+ returns +false+. If the flag is
-      # false validations are bypassed altogether. See
-      # ActiveRecord::Validations for more information. 
-      #
-      # There's a series of callbacks associated with +save+. If any of the
-      # <tt>before_*</tt> callbacks return +false+ the action is cancelled and
-      # +save+ returns +false+. See ActiveRecord::Callbacks for further
-      # details. 
-      def save
-        create_or_update
-      end
-
-      # Saves the model.
-      #
-      # If the model is new a record gets created in the database, otherwise
-      # the existing record gets updated.
-      #
-      # With <tt>save!</tt> validations always run. If any of them fail
-      # ActiveRecord::RecordInvalid gets raised. See ActiveRecord::Validations
-      # for more information. 
-      #
-      # There's a series of callbacks associated with <tt>save!</tt>. If any of
-      # the <tt>before_*</tt> callbacks return +false+ the action is cancelled
-      # and <tt>save!</tt> raises ActiveRecord::RecordNotSaved. See
-      # ActiveRecord::Callbacks for further details. 
-      def save!
-        create_or_update || raise(RecordNotSaved)
-      end
-
-      # Deletes the record in the database and freezes this instance to
-      # reflect that no changes should be made (since they can't be
-      # persisted). Returns the frozen instance.
-      #
-      # The row is simply removed with a SQL +DELETE+ statement on the
-      # record's primary key, and no callbacks are executed.
-      #
-      # To enforce the object's +before_destroy+ and +after_destroy+
-      # callbacks, Observer methods, or any <tt>:dependent</tt> association
-      # options, use <tt>#destroy</tt>.
-      def delete
-        self.class.delete(id) unless new_record?
-        @destroyed = true
-        freeze
-      end
-
-      # Deletes the record in the database and freezes this instance to reflect that no changes should
-      # be made (since they can't be persisted).
-      def destroy
-        unless new_record?
-          connection.delete(
-            "DELETE FROM #{self.class.quoted_table_name} " +
-            "WHERE #{connection.quote_column_name(self.class.primary_key)} = #{quoted_id}",
-            "#{self.class.name} Destroy"
-          )
-        end
-
-        @destroyed = true
-        freeze
-      end
-
-      # Returns a clone of the record that hasn't been assigned an id yet and
-      # is treated as a new record.  Note that this is a "shallow" clone:
-      # it copies the object's attributes only, not its associations.
-      # The extent of a "deep" clone is application-specific and is therefore
-      # left to the application to implement according to its need.
-      def clone
-        attrs = clone_attributes(:read_attribute_before_type_cast)
-        attrs.delete(self.class.primary_key)
-        record = self.class.new
-        record.send :instance_variable_set, '@attributes', attrs
-        record
-      end
-
-      # Returns an instance of the specified +klass+ with the attributes of the current record. This is mostly useful in relation to
-      # single-table inheritance structures where you want a subclass to appear as the superclass. This can be used along with record
-      # identification in Action Pack to allow, say, <tt>Client < Company</tt> to do something like render <tt>:partial => @client.becomes(Company)</tt>
-      # to render that instance using the companies/company partial instead of clients/client.
-      #
-      # Note: The new instance will share a link to the same attributes as the original class. So any change to the attributes in either
-      # instance will affect the other.
-      def becomes(klass)
-        returning klass.new do |became|
-          became.instance_variable_set("@attributes", @attributes)
-          became.instance_variable_set("@attributes_cache", @attributes_cache)
-          became.instance_variable_set("@new_record", new_record?)
-        end
-      end
-
-      # Updates a single attribute and saves the record without going through the normal validation procedure.
-      # This is especially useful for boolean flags on existing records. The regular +update_attribute+ method
-      # in Base is replaced with this when the validations module is mixed in, which it is by default.
-      def update_attribute(name, value)
-        send(name.to_s + '=', value)
-        save(false)
-      end
-
-      # Updates all the attributes from the passed-in Hash and saves the record. If the object is invalid, the saving will
-      # fail and false will be returned.
-      def update_attributes(attributes)
-        self.attributes = attributes
-        save
-      end
-
-      # Updates an object just like Base.update_attributes but calls save! instead of save so an exception is raised if the record is invalid.
-      def update_attributes!(attributes)
-        self.attributes = attributes
-        save!
-      end
-
-      # Initializes +attribute+ to zero if +nil+ and adds the value passed as +by+ (default is 1).
-      # The increment is performed directly on the underlying attribute, no setter is invoked.
-      # Only makes sense for number-based attributes. Returns +self+.
-      def increment(attribute, by = 1)
-        self[attribute] ||= 0
-        self[attribute] += by
-        self
-      end
-
-      # Wrapper around +increment+ that saves the record. This method differs from
-      # its non-bang version in that it passes through the attribute setter.
-      # Saving is not subjected to validation checks. Returns +true+ if the
-      # record could be saved.
-      def increment!(attribute, by = 1)
-        increment(attribute, by).update_attribute(attribute, self[attribute])
-      end
-
-      # Initializes +attribute+ to zero if +nil+ and subtracts the value passed as +by+ (default is 1).
-      # The decrement is performed directly on the underlying attribute, no setter is invoked.
-      # Only makes sense for number-based attributes. Returns +self+.
-      def decrement(attribute, by = 1)
-        self[attribute] ||= 0
-        self[attribute] -= by
-        self
-      end
-
-      # Wrapper around +decrement+ that saves the record. This method differs from
-      # its non-bang version in that it passes through the attribute setter.
-      # Saving is not subjected to validation checks. Returns +true+ if the
-      # record could be saved.
-      def decrement!(attribute, by = 1)
-        decrement(attribute, by).update_attribute(attribute, self[attribute])
-      end
-
-      # Assigns to +attribute+ the boolean opposite of <tt>attribute?</tt>. So
-      # if the predicate returns +true+ the attribute will become +false+. This
-      # method toggles directly the underlying value without calling any setter.
-      # Returns +self+.
-      def toggle(attribute)
-        self[attribute] = !send("#{attribute}?")
-        self
-      end
-
-      # Wrapper around +toggle+ that saves the record. This method differs from
-      # its non-bang version in that it passes through the attribute setter.
-      # Saving is not subjected to validation checks. Returns +true+ if the
-      # record could be saved.
-      def toggle!(attribute)
-        toggle(attribute).update_attribute(attribute, self[attribute])
-      end
-
-      # Reloads the attributes of this object from the database.
-      # The optional options argument is passed to find when reloading so you
-      # may do e.g. record.reload(:lock => true) to reload the same record with
-      # an exclusive row lock.
-      def reload(options = nil)
-        clear_aggregation_cache
-        clear_association_cache
-        @attributes.update(self.class.find(self.id, options).instance_variable_get('@attributes'))
-        @attributes_cache = {}
-        self
-      end
-
-      # Returns the value of the attribute identified by <tt>attr_name</tt> after it has been typecast (for example,
-      # "2004-12-12" in a data column is cast to a date object, like Date.new(2004, 12, 12)).
-      # (Alias for the protected read_attribute method).
-      def [](attr_name)
-        read_attribute(attr_name)
-      end
-
-      # Updates the attribute identified by <tt>attr_name</tt> with the specified +value+.
-      # (Alias for the protected write_attribute method).
-      def []=(attr_name, value)
-        write_attribute(attr_name, value)
-      end
-
-      # Allows you to set all the attributes at once by passing in a hash with keys
-      # matching the attribute names (which again matches the column names).
-      #
-      # If +guard_protected_attributes+ is true (the default), then sensitive
-      # attributes can be protected from this form of mass-assignment by using
-      # the +attr_protected+ macro. Or you can alternatively specify which
-      # attributes *can* be accessed with the +attr_accessible+ macro. Then all the
-      # attributes not included in that won't be allowed to be mass-assigned.
-      #
-      #   class User < ActiveRecord::Base
-      #     attr_protected :is_admin
-      #   end
-      #   
-      #   user = User.new
-      #   user.attributes = { :username => 'Phusion', :is_admin => true }
-      #   user.username   # => "Phusion"
-      #   user.is_admin?  # => false
-      #   
-      #   user.send(:attributes=, { :username => 'Phusion', :is_admin => true }, false)
-      #   user.is_admin?  # => true
-      def attributes=(new_attributes, guard_protected_attributes = true)
-        return if new_attributes.nil?
-        attributes = new_attributes.dup
-        attributes.stringify_keys!
-
-        multi_parameter_attributes = []
-        attributes = remove_attributes_protected_from_mass_assignment(attributes) if guard_protected_attributes
-
-        attributes.each do |k, v|
-          if k.include?("(")
-            multi_parameter_attributes << [ k, v ]
-          else
-            respond_to?(:"#{k}=") ? send(:"#{k}=", v) : raise(UnknownAttributeError, "unknown attribute: #{k}")
-          end
-        end
-
-        assign_multiparameter_attributes(multi_parameter_attributes)
-      end
-
-      # Returns a hash of all the attributes with their names as keys and the values of the attributes as values.
-      def attributes
-        self.attribute_names.inject({}) do |attrs, name|
-          attrs[name] = read_attribute(name)
-          attrs
-        end
-      end
-
-      # Returns a hash of attributes before typecasting and deserialization.
-      def attributes_before_type_cast
-        self.attribute_names.inject({}) do |attrs, name|
-          attrs[name] = read_attribute_before_type_cast(name)
-          attrs
-        end
-      end
-
-      # Returns an <tt>#inspect</tt>-like string for the value of the
-      # attribute +attr_name+. String attributes are elided after 50
-      # characters, and Date and Time attributes are returned in the
-      # <tt>:db</tt> format. Other attributes return the value of
-      # <tt>#inspect</tt> without modification.
-      #
-      #   person = Person.create!(:name => "David Heinemeier Hansson " * 3)
-      #
-      #   person.attribute_for_inspect(:name)
-      #   # => '"David Heinemeier Hansson David Heinemeier Hansson D..."'
-      #
-      #   person.attribute_for_inspect(:created_at)
-      #   # => '"2009-01-12 04:48:57"'
-      def attribute_for_inspect(attr_name)
-        value = read_attribute(attr_name)
-
-        if value.is_a?(String) && value.length > 50
-          "#{value[0..50]}...".inspect
-        elsif value.is_a?(Date) || value.is_a?(Time)
-          %("#{value.to_s(:db)}")
-        else
-          value.inspect
-        end
-      end
-
-      # Returns true if the specified +attribute+ has been set by the user or by a database load and is neither
-      # nil nor empty? (the latter only applies to objects that respond to empty?, most notably Strings).
-      def attribute_present?(attribute)
-        value = read_attribute(attribute)
-        !value.blank?
-      end
-
-      # Returns true if the given attribute is in the attributes hash
-      def has_attribute?(attr_name)
-        @attributes.has_key?(attr_name.to_s)
-      end
-
-      # Returns an array of names for the attributes available on this object sorted alphabetically.
-      def attribute_names
-        @attributes.keys.sort
-      end
-
-      # Returns the column object for the named attribute.
-      def column_for_attribute(name)
-        self.class.columns_hash[name.to_s]
-      end
-
-      # Returns true if the +comparison_object+ is the same object, or is of the same type and has the same id.
-      def ==(comparison_object)
-        comparison_object.equal?(self) ||
-          (comparison_object.instance_of?(self.class) &&
-            comparison_object.id == id &&
-            !comparison_object.new_record?)
-      end
-
-      # Delegates to ==
-      def eql?(comparison_object)
-        self == (comparison_object)
-      end
-
-      # Delegates to id in order to allow two records of the same type and id to work with something like:
-      #   [ Person.find(1), Person.find(2), Person.find(3) ] & [ Person.find(1), Person.find(4) ] # => [ Person.find(1) ]
-      def hash
-        id.hash
-      end
-
-      # Freeze the attributes hash such that associations are still accessible, even on destroyed records.
-      def freeze
-        @attributes.freeze; self
-      end
-
-      # Returns +true+ if the attributes hash has been frozen.
-      def frozen?
-        @attributes.frozen?
-      end
-
-      # Returns +true+ if the record has been destroyed.
-      def destroyed?
-        @destroyed
-      end
-
-      # Returns +true+ if the record is read only. Records loaded through joins with piggy-back
-      # attributes will be marked as read only since they cannot be saved.
-      def readonly?
-        defined?(@readonly) && @readonly == true
-      end
-
-      # Marks this record as read only.
-      def readonly!
-        @readonly = true
-      end
-
-      # Returns the contents of the record as a nicely formatted string.
-      def inspect
-        attributes_as_nice_string = self.class.column_names.collect { |name|
-          if has_attribute?(name) || new_record?
-            "#{name}: #{attribute_for_inspect(name)}"
-          end
-        }.compact.join(", ")
-        "#<#{self.class} #{attributes_as_nice_string}>"
-      end
-
-    private
-      def create_or_update
-        raise ReadOnlyRecord if readonly?
-        result = new_record? ? create : update
-        result != false
-      end
-
-      # Updates the associated record with values matching those of the instance attributes.
-      # Returns the number of affected rows.
-      def update(attribute_names = @attributes.keys)
-        quoted_attributes = attributes_with_quotes(false, false, attribute_names)
-        return 0 if quoted_attributes.empty?
-        connection.update(
-          "UPDATE #{self.class.quoted_table_name} " +
-          "SET #{quoted_comma_pair_list(connection, quoted_attributes)} " +
-          "WHERE #{connection.quote_column_name(self.class.primary_key)} = #{quote_value(id)}",
-          "#{self.class.name} Update"
-        )
-      end
-
-      # Creates a record with values matching those of the instance attributes
-      # and returns its id.
-      def create
-        if self.id.nil? && connection.prefetch_primary_key?(self.class.table_name)
-          self.id = connection.next_sequence_value(self.class.sequence_name)
-        end
-
-        quoted_attributes = attributes_with_quotes
-
-        statement = if quoted_attributes.empty?
-          connection.empty_insert_statement(self.class.table_name)
-        else
-          "INSERT INTO #{self.class.quoted_table_name} " +
-          "(#{quoted_column_names.join(', ')}) " +
-          "VALUES(#{quoted_attributes.values.join(', ')})"
-        end
-
-        self.id = connection.insert(statement, "#{self.class.name} Create",
-          self.class.primary_key, self.id, self.class.sequence_name)
-
-        @new_record = false
-        id
-      end
-
-      # Sets the attribute used for single table inheritance to this class name if this is not the ActiveRecord::Base descendant.
-      # Considering the hierarchy Reply < Message < ActiveRecord::Base, this makes it possible to do Reply.new without having to
-      # set <tt>Reply[Reply.inheritance_column] = "Reply"</tt> yourself. No such attribute would be set for objects of the
-      # Message class in that example.
-      def ensure_proper_type
-        unless self.class.descends_from_active_record?
-          write_attribute(self.class.inheritance_column, self.class.sti_name)
-        end
-      end
-
-      def convert_number_column_value(value)
-        if value == false
-          0
-        elsif value == true
-          1
-        elsif value.is_a?(String) && value.blank?
-          nil
-        else
-          value
-        end
-      end
-
-      def remove_attributes_protected_from_mass_assignment(attributes)
-        safe_attributes =
-          if self.class.accessible_attributes.nil? && self.class.protected_attributes.nil?
-            attributes.reject { |key, value| attributes_protected_by_default.include?(key.gsub(/\(.+/, "")) }
-          elsif self.class.protected_attributes.nil?
-            attributes.reject { |key, value| !self.class.accessible_attributes.include?(key.gsub(/\(.+/, "")) || attributes_protected_by_default.include?(key.gsub(/\(.+/, "")) }
-          elsif self.class.accessible_attributes.nil?
-            attributes.reject { |key, value| self.class.protected_attributes.include?(key.gsub(/\(.+/,"")) || attributes_protected_by_default.include?(key.gsub(/\(.+/, "")) }
-          else
-            raise "Declare either attr_protected or attr_accessible for #{self.class}, but not both."
-          end
-
-        removed_attributes = attributes.keys - safe_attributes.keys
-
-        if removed_attributes.any?
-          log_protected_attribute_removal(removed_attributes)
-        end
-
-        safe_attributes
-      end
-
-      # Removes attributes which have been marked as readonly.
-      def remove_readonly_attributes(attributes)
-        unless self.class.readonly_attributes.nil?
-          attributes.delete_if { |key, value| self.class.readonly_attributes.include?(key.gsub(/\(.+/,"")) }
-        else
-          attributes
-        end
-      end
-
-      def log_protected_attribute_removal(*attributes)
-        logger.debug "WARNING: Can't mass-assign these protected attributes: #{attributes.join(', ')}"
-      end
-
-      # The primary key and inheritance column can never be set by mass-assignment for security reasons.
-      def attributes_protected_by_default
-        default = [ self.class.primary_key, self.class.inheritance_column ]
-        default << 'id' unless self.class.primary_key.eql? 'id'
-        default
-      end
-
-      # Returns a copy of the attributes hash where all the values have been safely quoted for use in
-      # an SQL statement.
-      def attributes_with_quotes(include_primary_key = true, include_readonly_attributes = true, attribute_names = @attributes.keys)
-        quoted = {}
-        connection = self.class.connection
-        attribute_names.each do |name|
-          if (column = column_for_attribute(name)) && (include_primary_key || !column.primary)
-            value = read_attribute(name)
-
-            # We need explicit to_yaml because quote() does not properly convert Time/Date fields to YAML.
-            if value && self.class.serialized_attributes.has_key?(name) && (value.acts_like?(:date) || value.acts_like?(:time))
-              value = value.to_yaml
-            end
-
-            quoted[name] = connection.quote(value, column)
-          end
-        end
-        include_readonly_attributes ? quoted : remove_readonly_attributes(quoted)
-      end
-
-      # Quote strings appropriately for SQL statements.
-      def quote_value(value, column = nil)
-        self.class.connection.quote(value, column)
-      end
-
-      # Interpolate custom SQL string in instance context.
-      # Optional record argument is meant for custom insert_sql.
-      def interpolate_sql(sql, record = nil)
-        instance_eval("%@#{sql.gsub('@', '\@')}@")
-      end
-
-      # Initializes the attributes array with keys matching the columns from the linked table and
-      # the values matching the corresponding default value of that column, so
-      # that a new instance, or one populated from a passed-in Hash, still has all the attributes
-      # that instances loaded from the database would.
-      def attributes_from_column_definition
-        self.class.columns.inject({}) do |attributes, column|
-          attributes[column.name] = column.default unless column.name == self.class.primary_key
-          attributes
-        end
-      end
-
-      # Instantiates objects for all attribute classes that needs more than one constructor parameter. This is done
-      # by calling new on the column type or aggregation type (through composed_of) object with these parameters.
-      # So having the pairs written_on(1) = "2004", written_on(2) = "6", written_on(3) = "24", will instantiate
-      # written_on (a date type) with Date.new("2004", "6", "24"). You can also specify a typecast character in the
-      # parentheses to have the parameters typecasted before they're used in the constructor. Use i for Fixnum, f for Float,
-      # s for String, and a for Array. If all the values for a given attribute are empty, the attribute will be set to nil.
-      def assign_multiparameter_attributes(pairs)
-        execute_callstack_for_multiparameter_attributes(
-          extract_callstack_for_multiparameter_attributes(pairs)
-        )
-      end
-
-      def instantiate_time_object(name, values)
-        if self.class.send(:create_time_zone_conversion_attribute?, name, column_for_attribute(name))
-          Time.zone.local(*values)
-        else
-          Time.time_with_datetime_fallback(@@default_timezone, *values)
-        end
-      end
-
-      def execute_callstack_for_multiparameter_attributes(callstack)
-        errors = []
-        callstack.each do |name, values_with_empty_parameters|
-          begin
-            klass = (self.class.reflect_on_aggregation(name.to_sym) || column_for_attribute(name)).klass
-            # in order to allow a date to be set without a year, we must keep the empty values.
-            # Otherwise, we wouldn't be able to distinguish it from a date with an empty day.
-            values = values_with_empty_parameters.reject(&:nil?)
-
-            if values.empty?
-              send(name + "=", nil)
-            else
-
-              value = if Time == klass
-                instantiate_time_object(name, values)
-              elsif Date == klass
-                begin
-                  values = values_with_empty_parameters.collect do |v| v.nil? ? 1 : v end
-                  Date.new(*values)
-                rescue ArgumentError => ex # if Date.new raises an exception on an invalid date
-                  instantiate_time_object(name, values).to_date # we instantiate Time object and convert it back to a date thus using Time's logic in handling invalid dates
-                end
-              else
-                klass.new(*values)
-              end
-
-              send(name + "=", value)
-            end
-          rescue => ex
-            errors << AttributeAssignmentError.new("error on assignment #{values.inspect} to #{name}", ex, name)
-          end
-        end
-        unless errors.empty?
-          raise MultiparameterAssignmentErrors.new(errors), "#{errors.size} error(s) on assignment of multiparameter attributes"
-        end
-      end
-
-      def extract_callstack_for_multiparameter_attributes(pairs)
-        attributes = { }
-
-        for pair in pairs
-          multiparameter_name, value = pair
-          attribute_name = multiparameter_name.split("(").first
-          attributes[attribute_name] = [] unless attributes.include?(attribute_name)
-
-          parameter_value = value.empty? ? nil : type_cast_attribute_value(multiparameter_name, value)
-          attributes[attribute_name] << [ find_parameter_position(multiparameter_name), parameter_value ]
-        end
-
-        attributes.each { |name, values| attributes[name] = values.sort_by{ |v| v.first }.collect { |v| v.last } }
-      end
-
-      def type_cast_attribute_value(multiparameter_name, value)
-        multiparameter_name =~ /\([0-9]*([if])\)/ ? value.send("to_" + $1) : value
-      end
-
-      def find_parameter_position(multiparameter_name)
-        multiparameter_name.scan(/\(([0-9]*).*\)/).first.first
-      end
-
-      # Returns a comma-separated pair list, like "key1 = val1, key2 = val2".
-      def comma_pair_list(hash)
-        hash.inject([]) { |list, pair| list << "#{pair.first} = #{pair.last}" }.join(", ")
-      end
-
-      def quoted_column_names(attributes = attributes_with_quotes)
-        connection = self.class.connection
-        attributes.keys.collect do |column_name|
-          connection.quote_column_name(column_name)
-        end
-      end
-
-      def self.quoted_table_name
-        self.connection.quote_table_name(self.table_name)
-      end
-
-      def quote_columns(quoter, hash)
-        hash.inject({}) do |quoted, (name, value)|
-          quoted[quoter.quote_column_name(name)] = value
-          quoted
-        end
-      end
-
-      def quoted_comma_pair_list(quoter, hash)
-        comma_pair_list(quote_columns(quoter, hash))
-      end
-
-      def object_from_yaml(string)
-        return string unless string.is_a?(String) && string =~ /^---/
-        YAML::load(string) rescue string
-      end
-
-      def clone_attributes(reader_method = :read_attribute, attributes = {})
-        self.attribute_names.inject(attributes) do |attrs, name|
-          attrs[name] = clone_attribute_value(reader_method, name)
-          attrs
-        end
-      end
-
-      def clone_attribute_value(reader_method, attribute_name)
-        value = send(reader_method, attribute_name)
-        value.duplicable? ? value.clone : value
-      rescue TypeError, NoMethodError
-        value
-      end
-  end
-
-  Base.class_eval do
-    extend QueryCache::ClassMethods
-    include Validations
-    include Locking::Optimistic, Locking::Pessimistic
-    include AttributeMethods
-    include Dirty
-    include Callbacks, Observing, Timestamp
-    include Associations, AssociationPreload, NamedScope
-
-    # AutosaveAssociation needs to be included before Transactions, because we want
-    # #save_with_autosave_associations to be wrapped inside a transaction.
-    include AutosaveAssociation, NestedAttributes
-
-    include Aggregations, Transactions, Reflection, Batches, Calculations, Serialization
-  end
-end
-
-# TODO: Remove this and make it work with LAZY flag
-require 'active_record/connection_adapters/abstract_adapter'
@@ -1,81 +0,0 @@
-module ActiveRecord
-  module Batches # :nodoc:
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
-
-    # When processing large numbers of records, it's often a good idea to do
-    # so in batches to prevent memory ballooning.
-    module ClassMethods
-      # Yields each record that was found by the find +options+. The find is
-      # performed by find_in_batches with a batch size of 1000 (or as
-      # specified by the <tt>:batch_size</tt> option).
-      #
-      # Example:
-      #
-      #   Person.find_each(:conditions => "age > 21") do |person|
-      #     person.party_all_night!
-      #   end
-      #
-      # Note: This method is only intended to use for batch processing of
-      # large amounts of records that wouldn't fit in memory all at once. If
-      # you just need to loop over less than 1000 records, it's probably
-      # better just to use the regular find methods.
-      def find_each(options = {})
-        find_in_batches(options) do |records|
-          records.each { |record| yield record }
-        end
-
-        self
-      end
-
-      # Yields each batch of records that was found by the find +options+ as
-      # an array. The size of each batch is set by the <tt>:batch_size</tt>
-      # option; the default is 1000.
-      #
-      # You can control the starting point for the batch processing by
-      # supplying the <tt>:start</tt> option. This is especially useful if you
-      # want multiple workers dealing with the same processing queue. You can
-      # make worker 1 handle all the records between id 0 and 10,000 and
-      # worker 2 handle from 10,000 and beyond (by setting the <tt>:start</tt>
-      # option on that worker).
-      #
-      # It's not possible to set the order. That is automatically set to
-      # ascending on the primary key ("id ASC") to make the batch ordering
-      # work. This also mean that this method only works with integer-based
-      # primary keys. You can't set the limit either, that's used to control
-      # the the batch sizes.
-      #
-      # Example:
-      #
-      #   Person.find_in_batches(:conditions => "age > 21") do |group|
-      #     sleep(50) # Make sure it doesn't get too crowded in there!
-      #     group.each { |person| person.party_all_night! }
-      #   end
-      def find_in_batches(options = {})
-        raise "You can't specify an order, it's forced to be #{batch_order}" if options[:order]
-        raise "You can't specify a limit, it's forced to be the batch_size"  if options[:limit]
-
-        start = options.delete(:start).to_i
-        batch_size = options.delete(:batch_size) || 1000
-
-        with_scope(:find => options.merge(:order => batch_order, :limit => batch_size)) do
-          records = find(:all, :conditions => [ "#{table_name}.#{primary_key} >= ?", start ])
-
-          while records.any?
-            yield records
-
-            break if records.size < batch_size
-            records = find(:all, :conditions => [ "#{table_name}.#{primary_key} > ?", records.last.id ])
-          end
-        end
-      end
-      
-      
-      private
-        def batch_order
-          "#{table_name}.#{primary_key} ASC"
-        end
-    end
-  end
-end
@@ -1,311 +0,0 @@
-module ActiveRecord
-  module Calculations #:nodoc:
-    CALCULATIONS_OPTIONS = [:conditions, :joins, :order, :select, :group, :having, :distinct, :limit, :offset, :include, :from]
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
-
-    module ClassMethods
-      # Count operates using three different approaches.
-      #
-      # * Count all: By not passing any parameters to count, it will return a count of all the rows for the model.
-      # * Count using column: By passing a column name to count, it will return a count of all the rows for the model with supplied column present
-      # * Count using options will find the row count matched by the options used.
-      #
-      # The third approach, count using options, accepts an option hash as the only parameter. The options are:
-      #
-      # * <tt>:conditions</tt>: An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro to ActiveRecord::Base.
-      # * <tt>:joins</tt>: Either an SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id" (rarely needed)
-      #   or named associations in the same form used for the <tt>:include</tt> option, which will perform an INNER JOIN on the associated table(s).
-      #   If the value is a string, then the records will be returned read-only since they will have attributes that do not correspond to the table's columns.
-      #   Pass <tt>:readonly => false</tt> to override.
-      # * <tt>:include</tt>: Named associations that should be loaded alongside using LEFT OUTER JOINs. The symbols named refer
-      #   to already defined associations. When using named associations, count returns the number of DISTINCT items for the model you're counting.
-      #   See eager loading under Associations.
-      # * <tt>:order</tt>: An SQL fragment like "created_at DESC, name" (really only used with GROUP BY calculations).
-      # * <tt>:group</tt>: An attribute name by which the result should be grouped. Uses the GROUP BY SQL-clause.
-      # * <tt>:select</tt>: By default, this is * as in SELECT * FROM, but can be changed if you, for example, want to do a join but not
-      #   include the joined columns.
-      # * <tt>:distinct</tt>: Set this to true to make this a distinct calculation, such as SELECT COUNT(DISTINCT posts.id) ...
-      # * <tt>:from</tt> - By default, this is the table name of the class, but can be changed to an alternate table name (or even the name
-      #   of a database view).
-      #
-      # Examples for counting all:
-      #   Person.count         # returns the total count of all people
-      #
-      # Examples for counting by column:
-      #   Person.count(:age)  # returns the total count of all people whose age is present in database
-      #
-      # Examples for count with options:
-      #   Person.count(:conditions => "age > 26")
-      #   Person.count(:conditions => "age > 26 AND job.salary > 60000", :include => :job) # because of the named association, it finds the DISTINCT count using LEFT OUTER JOIN.
-      #   Person.count(:conditions => "age > 26 AND job.salary > 60000", :joins => "LEFT JOIN jobs on jobs.person_id = person.id") # finds the number of rows matching the conditions and joins.
-      #   Person.count('id', :conditions => "age > 26") # Performs a COUNT(id)
-      #   Person.count(:all, :conditions => "age > 26") # Performs a COUNT(*) (:all is an alias for '*')
-      #
-      # Note: <tt>Person.count(:all)</tt> will not work because it will use <tt>:all</tt> as the condition.  Use Person.count instead.
-      def count(*args)
-        calculate(:count, *construct_count_options_from_args(*args))
-      end
-
-      # Calculates the average value on a given column. The value is returned as
-      # a float, or +nil+ if there's no row. See +calculate+ for examples with
-      # options.
-      #
-      #   Person.average('age') # => 35.8
-      def average(column_name, options = {})
-        calculate(:avg, column_name, options)
-      end
-
-      # Calculates the minimum value on a given column.  The value is returned
-      # with the same data type of the column, or +nil+ if there's no row. See
-      # +calculate+ for examples with options.
-      #
-      #   Person.minimum('age') # => 7
-      def minimum(column_name, options = {})
-        calculate(:min, column_name, options)
-      end
-
-      # Calculates the maximum value on a given column. The value is returned
-      # with the same data type of the column, or +nil+ if there's no row. See
-      # +calculate+ for examples with options.
-      #
-      #   Person.maximum('age') # => 93
-      def maximum(column_name, options = {})
-        calculate(:max, column_name, options)
-      end
-
-      # Calculates the sum of values on a given column. The value is returned
-      # with the same data type of the column, 0 if there's no row. See
-      # +calculate+ for examples with options.
-      #
-      #   Person.sum('age') # => 4562
-      def sum(column_name, options = {})
-        calculate(:sum, column_name, options)
-      end
-
-      # This calculates aggregate values in the given column.  Methods for count, sum, average, minimum, and maximum have been added as shortcuts.
-      # Options such as <tt>:conditions</tt>, <tt>:order</tt>, <tt>:group</tt>, <tt>:having</tt>, and <tt>:joins</tt> can be passed to customize the query.
-      #
-      # There are two basic forms of output:
-      #   * Single aggregate value: The single value is type cast to Fixnum for COUNT, Float for AVG, and the given column's type for everything else.
-      #   * Grouped values: This returns an ordered hash of the values and groups them by the <tt>:group</tt> option.  It takes either a column name, or the name
-      #     of a belongs_to association.
-      #
-      #       values = Person.maximum(:age, :group => 'last_name')
-      #       puts values["Drake"]
-      #       => 43
-      #
-      #       drake  = Family.find_by_last_name('Drake')
-      #       values = Person.maximum(:age, :group => :family) # Person belongs_to :family
-      #       puts values[drake]
-      #       => 43
-      #
-      #       values.each do |family, max_age|
-      #       ...
-      #       end
-      #
-      # Options:
-      # * <tt>:conditions</tt> - An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro to ActiveRecord::Base.
-      # * <tt>:include</tt>: Eager loading, see Associations for details.  Since calculations don't load anything, the purpose of this is to access fields on joined tables in your conditions, order, or group clauses.
-      # * <tt>:joins</tt> - An SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id". (Rarely needed).
-      #   The records will be returned read-only since they will have attributes that do not correspond to the table's columns.
-      # * <tt>:order</tt> - An SQL fragment like "created_at DESC, name" (really only used with GROUP BY calculations).
-      # * <tt>:group</tt> - An attribute name by which the result should be grouped. Uses the GROUP BY SQL-clause.
-      # * <tt>:select</tt> - By default, this is * as in SELECT * FROM, but can be changed if you for example want to do a join, but not
-      #   include the joined columns.
-      # * <tt>:distinct</tt> - Set this to true to make this a distinct calculation, such as SELECT COUNT(DISTINCT posts.id) ...
-      #
-      # Examples:
-      #   Person.calculate(:count, :all) # The same as Person.count
-      #   Person.average(:age) # SELECT AVG(age) FROM people...
-      #   Person.minimum(:age, :conditions => ['last_name != ?', 'Drake']) # Selects the minimum age for everyone with a last name other than 'Drake'
-      #   Person.minimum(:age, :having => 'min(age) > 17', :group => :last_name) # Selects the minimum age for any family without any minors
-      #   Person.sum("2 * age")
-      def calculate(operation, column_name, options = {})
-        validate_calculation_options(operation, options)
-        column_name     = options[:select] if options[:select]
-        column_name     = '*' if column_name == :all
-        column          = column_for column_name
-        catch :invalid_query do
-          if options[:group]
-            return execute_grouped_calculation(operation, column_name, column, options)
-          else
-            return execute_simple_calculation(operation, column_name, column, options)
-          end
-        end
-        0
-      end
-
-      protected
-        def construct_count_options_from_args(*args)
-          options     = {}
-          column_name = :all
-          
-          # We need to handle
-          #   count()
-          #   count(:column_name=:all)
-          #   count(options={})
-          #   count(column_name=:all, options={})
-          case args.size
-          when 1
-            args[0].is_a?(Hash) ? options = args[0] : column_name = args[0]
-          when 2
-            column_name, options = args
-          else
-            raise ArgumentError, "Unexpected parameters passed to count(): #{args.inspect}"
-          end if args.size > 0
-          
-          [column_name, options]
-        end
-
-        def construct_calculation_sql(operation, column_name, options) #:nodoc:
-          operation = operation.to_s.downcase
-          options = options.symbolize_keys
-
-          scope           = scope(:find)
-          merged_includes = merge_includes(scope ? scope[:include] : [], options[:include])
-          aggregate_alias = column_alias_for(operation, column_name)
-          column_name     = "#{connection.quote_table_name(table_name)}.#{column_name}" if column_names.include?(column_name.to_s)
-
-          if operation == 'count'
-            if merged_includes.any?
-              options[:distinct] = true
-              column_name = options[:select] || [connection.quote_table_name(table_name), primary_key] * '.'
-            end
-
-            if options[:distinct]
-              use_workaround = !connection.supports_count_distinct?
-            end
-          end
-
-          if options[:distinct] && column_name.to_s !~ /\s*DISTINCT\s+/i
-            distinct = 'DISTINCT ' 
-          end
-          sql = "SELECT #{operation}(#{distinct}#{column_name}) AS #{aggregate_alias}"
-
-          # A (slower) workaround if we're using a backend, like sqlite, that doesn't support COUNT DISTINCT.
-          sql = "SELECT COUNT(*) AS #{aggregate_alias}" if use_workaround
-
-          sql << ", #{options[:group_field]} AS #{options[:group_alias]}" if options[:group]
-          if options[:from]
-            sql << " FROM #{options[:from]} "
-          elsif scope && scope[:from] && !use_workaround
-            sql << " FROM #{scope[:from]} "
-          else
-            sql << " FROM (SELECT #{distinct}#{column_name}" if use_workaround
-            sql << " FROM #{connection.quote_table_name(table_name)} "
-          end
-
-          joins = ""
-          add_joins!(joins, options[:joins], scope)
-
-          if merged_includes.any?
-            join_dependency = ActiveRecord::Associations::ClassMethods::JoinDependency.new(self, merged_includes, joins)
-            sql << join_dependency.join_associations.collect{|join| join.association_join }.join
-          end
-
-          sql << joins unless joins.blank?
-
-          add_conditions!(sql, options[:conditions], scope)
-          add_limited_ids_condition!(sql, options, join_dependency) if join_dependency && !using_limitable_reflections?(join_dependency.reflections) && ((scope && scope[:limit]) || options[:limit])
-
-          if options[:group]
-            group_key = connection.adapter_name == 'FrontBase' ?  :group_alias : :group_field
-            sql << " GROUP BY #{options[group_key]} "
-          end
-
-          if options[:group] && options[:having]
-            having = sanitize_sql_for_conditions(options[:having])
-
-            # FrontBase requires identifiers in the HAVING clause and chokes on function calls
-            if connection.adapter_name == 'FrontBase'
-              having.downcase!
-              having.gsub!(/#{operation}\s*\(\s*#{column_name}\s*\)/, aggregate_alias)
-            end
-
-            sql << " HAVING #{having} "
-          end
-
-          sql << " ORDER BY #{options[:order]} "       if options[:order]
-          add_limit!(sql, options, scope)
-          sql << ") #{aggregate_alias}_subquery" if use_workaround
-          sql
-        end
-
-        def execute_simple_calculation(operation, column_name, column, options) #:nodoc:
-          value = connection.select_value(construct_calculation_sql(operation, column_name, options))
-          type_cast_calculated_value(value, column, operation)
-        end
-
-        def execute_grouped_calculation(operation, column_name, column, options) #:nodoc:
-          group_attr      = options[:group].to_s
-          association     = reflect_on_association(group_attr.to_sym)
-          associated      = association && association.macro == :belongs_to # only count belongs_to associations
-          group_field     = associated ? association.primary_key_name : group_attr
-          group_alias     = column_alias_for(group_field)
-          group_column    = column_for group_field
-          sql             = construct_calculation_sql(operation, column_name, options.merge(:group_field => group_field, :group_alias => group_alias))
-          calculated_data = connection.select_all(sql)
-          aggregate_alias = column_alias_for(operation, column_name)
-
-          if association
-            key_ids     = calculated_data.collect { |row| row[group_alias] }
-            key_records = association.klass.base_class.find(key_ids)
-            key_records = key_records.inject({}) { |hsh, r| hsh.merge(r.id => r) }
-          end
-
-          calculated_data.inject(ActiveSupport::OrderedHash.new) do |all, row|
-            key   = type_cast_calculated_value(row[group_alias], group_column)
-            key   = key_records[key] if associated
-            value = row[aggregate_alias]
-            all[key] = type_cast_calculated_value(value, column, operation)
-            all
-          end
-        end
-
-      private
-        def validate_calculation_options(operation, options = {})
-          options.assert_valid_keys(CALCULATIONS_OPTIONS)
-        end
-
-        # Converts the given keys to the value that the database adapter returns as
-        # a usable column name:
-        #
-        #   column_alias_for("users.id")                 # => "users_id"
-        #   column_alias_for("sum(id)")                  # => "sum_id"
-        #   column_alias_for("count(distinct users.id)") # => "count_distinct_users_id"
-        #   column_alias_for("count(*)")                 # => "count_all"
-        #   column_alias_for("count", "id")              # => "count_id"
-        def column_alias_for(*keys)
-          table_name = keys.join(' ')
-          table_name.downcase!
-          table_name.gsub!(/\*/, 'all')
-          table_name.gsub!(/\W+/, ' ')
-          table_name.strip!
-          table_name.gsub!(/ +/, '_')
-
-          connection.table_alias_for(table_name)
-        end
-
-        def column_for(field)
-          field_name = field.to_s.split('.').last
-          columns.detect { |c| c.name.to_s == field_name }
-        end
-
-        def type_cast_calculated_value(value, column, operation = nil)
-          operation = operation.to_s.downcase
-          case operation
-            when 'count' then value.to_i
-            when 'sum'   then type_cast_using_column(value || '0', column)
-            when 'avg'   then value && (value.is_a?(Fixnum) ? value.to_f : value).to_d
-            else type_cast_using_column(value, column)
-          end
-        end
-
-        def type_cast_using_column(value, column)
-          column ? column.type_cast(value) : value
-        end
-    end
-  end
-end
@@ -1,360 +0,0 @@
-require 'observer'
-
-module ActiveRecord
-  # Callbacks are hooks into the lifecycle of an Active Record object that allow you to trigger logic
-  # before or after an alteration of the object state. This can be used to make sure that associated and
-  # dependent objects are deleted when +destroy+ is called (by overwriting +before_destroy+) or to massage attributes
-  # before they're validated (by overwriting +before_validation+). As an example of the callbacks initiated, consider
-  # the <tt>Base#save</tt> call for a new record:
-  #
-  # * (-) <tt>save</tt>
-  # * (-) <tt>valid</tt>
-  # * (1) <tt>before_validation</tt>
-  # * (2) <tt>before_validation_on_create</tt>
-  # * (-) <tt>validate</tt>
-  # * (-) <tt>validate_on_create</tt>
-  # * (3) <tt>after_validation</tt>
-  # * (4) <tt>after_validation_on_create</tt>
-  # * (5) <tt>before_save</tt>
-  # * (6) <tt>before_create</tt>
-  # * (-) <tt>create</tt>
-  # * (7) <tt>after_create</tt>
-  # * (8) <tt>after_save</tt>
-  #
-  # That's a total of eight callbacks, which gives you immense power to react and prepare for each state in the
-  # Active Record lifecycle. The sequence for calling <tt>Base#save</tt> an existing record is similar, except that each 
-  # <tt>_on_create</tt> callback is replaced by the corresponding <tt>_on_update</tt> callback.
-  #
-  # Examples:
-  #   class CreditCard < ActiveRecord::Base
-  #     # Strip everything but digits, so the user can specify "555 234 34" or
-  #     # "5552-3434" or both will mean "55523434"
-  #     def before_validation_on_create
-  #       self.number = number.gsub(/[^0-9]/, "") if attribute_present?("number")
-  #     end
-  #   end
-  #
-  #   class Subscription < ActiveRecord::Base
-  #     before_create :record_signup
-  #
-  #     private
-  #       def record_signup
-  #         self.signed_up_on = Date.today
-  #       end
-  #   end
-  #
-  #   class Firm < ActiveRecord::Base
-  #     # Destroys the associated clients and people when the firm is destroyed
-  #     before_destroy { |record| Person.destroy_all "firm_id = #{record.id}"   }
-  #     before_destroy { |record| Client.destroy_all "client_of = #{record.id}" }
-  #   end
-  #
-  # == Inheritable callback queues
-  #
-  # Besides the overwritable callback methods, it's also possible to register callbacks through the use of the callback macros.
-  # Their main advantage is that the macros add behavior into a callback queue that is kept intact down through an inheritance
-  # hierarchy. Example:
-  #
-  #   class Topic < ActiveRecord::Base
-  #     before_destroy :destroy_author
-  #   end
-  #
-  #   class Reply < Topic
-  #     before_destroy :destroy_readers
-  #   end
-  #
-  # Now, when <tt>Topic#destroy</tt> is run only +destroy_author+ is called. When <tt>Reply#destroy</tt> is run, both +destroy_author+ and
-  # +destroy_readers+ are called. Contrast this to the situation where we've implemented the save behavior through overwriteable
-  # methods:
-  #
-  #   class Topic < ActiveRecord::Base
-  #     def before_destroy() destroy_author end
-  #   end
-  #
-  #   class Reply < Topic
-  #     def before_destroy() destroy_readers end
-  #   end
-  #
-  # In that case, <tt>Reply#destroy</tt> would only run +destroy_readers+ and _not_ +destroy_author+. So, use the callback macros when
-  # you want to ensure that a certain callback is called for the entire hierarchy, and use the regular overwriteable methods
-  # when you want to leave it up to each descendant to decide whether they want to call +super+ and trigger the inherited callbacks.
-  #
-  # *IMPORTANT:* In order for inheritance to work for the callback queues, you must specify the callbacks before specifying the
-  # associations. Otherwise, you might trigger the loading of a child before the parent has registered the callbacks and they won't
-  # be inherited.
-  #
-  # == Types of callbacks
-  #
-  # There are four types of callbacks accepted by the callback macros: Method references (symbol), callback objects,
-  # inline methods (using a proc), and inline eval methods (using a string). Method references and callback objects are the
-  # recommended approaches, inline methods using a proc are sometimes appropriate (such as for creating mix-ins), and inline
-  # eval methods are deprecated.
-  #
-  # The method reference callbacks work by specifying a protected or private method available in the object, like this:
-  #
-  #   class Topic < ActiveRecord::Base
-  #     before_destroy :delete_parents
-  #
-  #     private
-  #       def delete_parents
-  #         self.class.delete_all "parent_id = #{id}"
-  #       end
-  #   end
-  #
-  # The callback objects have methods named after the callback called with the record as the only parameter, such as:
-  #
-  #   class BankAccount < ActiveRecord::Base
-  #     before_save      EncryptionWrapper.new
-  #     after_save       EncryptionWrapper.new
-  #     after_initialize EncryptionWrapper.new
-  #   end
-  #
-  #   class EncryptionWrapper
-  #     def before_save(record)
-  #       record.credit_card_number = encrypt(record.credit_card_number)
-  #     end
-  #
-  #     def after_save(record)
-  #       record.credit_card_number = decrypt(record.credit_card_number)
-  #     end
-  #
-  #     alias_method :after_find, :after_save
-  #
-  #     private
-  #       def encrypt(value)
-  #         # Secrecy is committed
-  #       end
-  #
-  #       def decrypt(value)
-  #         # Secrecy is unveiled
-  #       end
-  #   end
-  #
-  # So you specify the object you want messaged on a given callback. When that callback is triggered, the object has
-  # a method by the name of the callback messaged. You can make these callbacks more flexible by passing in other
-  # initialization data such as the name of the attribute to work with:
-  #
-  #   class BankAccount < ActiveRecord::Base
-  #     before_save      EncryptionWrapper.new("credit_card_number")
-  #     after_save       EncryptionWrapper.new("credit_card_number")
-  #     after_initialize EncryptionWrapper.new("credit_card_number")
-  #   end
-  #
-  #   class EncryptionWrapper
-  #     def initialize(attribute)
-  #       @attribute = attribute
-  #     end
-  #
-  #     def before_save(record)
-  #       record.send("#{@attribute}=", encrypt(record.send("#{@attribute}")))
-  #     end
-  #
-  #     def after_save(record)
-  #       record.send("#{@attribute}=", decrypt(record.send("#{@attribute}")))
-  #     end
-  #
-  #     alias_method :after_find, :after_save
-  #
-  #     private
-  #       def encrypt(value)
-  #         # Secrecy is committed
-  #       end
-  #
-  #       def decrypt(value)
-  #         # Secrecy is unveiled
-  #       end
-  #   end
-  #
-  # The callback macros usually accept a symbol for the method they're supposed to run, but you can also pass a "method string",
-  # which will then be evaluated within the binding of the callback. Example:
-  #
-  #   class Topic < ActiveRecord::Base
-  #     before_destroy 'self.class.delete_all "parent_id = #{id}"'
-  #   end
-  #
-  # Notice that single quotes (') are used so the <tt>#{id}</tt> part isn't evaluated until the callback is triggered. Also note that these
-  # inline callbacks can be stacked just like the regular ones:
-  #
-  #   class Topic < ActiveRecord::Base
-  #     before_destroy 'self.class.delete_all "parent_id = #{id}"',
-  #                    'puts "Evaluated after parents are destroyed"'
-  #   end
-  #
-  # == The +after_find+ and +after_initialize+ exceptions
-  #
-  # Because +after_find+ and +after_initialize+ are called for each object found and instantiated by a finder, such as <tt>Base.find(:all)</tt>, we've had
-  # to implement a simple performance constraint (50% more speed on a simple test case). Unlike all the other callbacks, +after_find+ and
-  # +after_initialize+ will only be run if an explicit implementation is defined (<tt>def after_find</tt>). In that case, all of the
-  # callback types will be called.
-  #
-  # == <tt>before_validation*</tt> returning statements
-  #
-  # If the returning value of a +before_validation+ callback can be evaluated to +false+, the process will be aborted and <tt>Base#save</tt> will return +false+.
-  # If Base#save! is called it will raise a ActiveRecord::RecordInvalid exception.
-  # Nothing will be appended to the errors object.
-  #
-  # == Canceling callbacks
-  #
-  # If a <tt>before_*</tt> callback returns +false+, all the later callbacks and the associated action are cancelled. If an <tt>after_*</tt> callback returns
-  # +false+, all the later callbacks are cancelled. Callbacks are generally run in the order they are defined, with the exception of callbacks
-  # defined as methods on the model, which are called last.
-  #
-  # == Transactions
-  #
-  # The entire callback chain of a +save+, <tt>save!</tt>, or +destroy+ call runs
-  # within a transaction. That includes <tt>after_*</tt> hooks. If everything
-  # goes fine a COMMIT is executed once the chain has been completed.
-  #
-  # If a <tt>before_*</tt> callback cancels the action a ROLLBACK is issued. You
-  # can also trigger a ROLLBACK raising an exception in any of the callbacks,
-  # including <tt>after_*</tt> hooks. Note, however, that in that case the client
-  # needs to be aware of it because an ordinary +save+ will raise such exception
-  # instead of quietly returning +false+.
-  module Callbacks
-    CALLBACKS = %w(
-      after_find after_initialize before_save after_save before_create after_create before_update after_update before_validation
-      after_validation before_validation_on_create after_validation_on_create before_validation_on_update
-      after_validation_on_update before_destroy after_destroy
-    )
-
-    def self.included(base) #:nodoc:
-      base.extend Observable
-
-      [:create_or_update, :valid?, :create, :update, :destroy].each do |method|
-        base.send :alias_method_chain, method, :callbacks
-      end
-
-      base.send :include, ActiveSupport::Callbacks
-      base.define_callbacks *CALLBACKS
-    end
-
-    # Is called when the object was instantiated by one of the finders, like <tt>Base.find</tt>.
-    #def after_find() end
-
-    # Is called after the object has been instantiated by a call to <tt>Base.new</tt>.
-    #def after_initialize() end
-
-    # Is called _before_ <tt>Base.save</tt> (regardless of whether it's a +create+ or +update+ save).
-    def before_save() end
-
-    # Is called _after_ <tt>Base.save</tt> (regardless of whether it's a +create+ or +update+ save).
-    # Note that this callback is still wrapped in the transaction around +save+. For example, if you
-    # invoke an external indexer at this point it won't see the changes in the database.
-    #
-    #  class Contact < ActiveRecord::Base
-    #    after_save { logger.info( 'New contact saved!' ) }
-    #  end
-    def after_save()  end
-    def create_or_update_with_callbacks #:nodoc:
-      return false if callback(:before_save) == false
-      if result = create_or_update_without_callbacks
-        callback(:after_save)
-      end
-      result
-    end
-    private :create_or_update_with_callbacks
-
-    # Is called _before_ <tt>Base.save</tt> on new objects that haven't been saved yet (no record exists).
-    def before_create() end
-
-    # Is called _after_ <tt>Base.save</tt> on new objects that haven't been saved yet (no record exists).
-    # Note that this callback is still wrapped in the transaction around +save+. For example, if you
-    # invoke an external indexer at this point it won't see the changes in the database.
-    def after_create() end
-    def create_with_callbacks #:nodoc:
-      return false if callback(:before_create) == false
-      result = create_without_callbacks
-      callback(:after_create)
-      result
-    end
-    private :create_with_callbacks
-
-    # Is called _before_ <tt>Base.save</tt> on existing objects that have a record.
-    def before_update() end
-
-    # Is called _after_ <tt>Base.save</tt> on existing objects that have a record.
-    # Note that this callback is still wrapped in the transaction around +save+. For example, if you
-    # invoke an external indexer at this point it won't see the changes in the database.
-    def after_update() end
-
-    def update_with_callbacks(*args) #:nodoc:
-      return false if callback(:before_update) == false
-      result = update_without_callbacks(*args)
-      callback(:after_update)
-      result
-    end
-    private :update_with_callbacks
-
-    # Is called _before_ <tt>Validations.validate</tt> (which is part of the <tt>Base.save</tt> call).
-    def before_validation() end
-
-    # Is called _after_ <tt>Validations.validate</tt> (which is part of the <tt>Base.save</tt> call).
-    def after_validation() end
-
-    # Is called _before_ <tt>Validations.validate</tt> (which is part of the <tt>Base.save</tt> call) on new objects
-    # that haven't been saved yet (no record exists).
-    def before_validation_on_create() end
-
-    # Is called _after_ <tt>Validations.validate</tt> (which is part of the <tt>Base.save</tt> call) on new objects
-    # that haven't been saved yet (no record exists).
-    def after_validation_on_create()  end
-
-    # Is called _before_ <tt>Validations.validate</tt> (which is part of the <tt>Base.save</tt> call) on
-    # existing objects that have a record.
-    def before_validation_on_update() end
-
-    # Is called _after_ <tt>Validations.validate</tt> (which is part of the <tt>Base.save</tt> call) on
-    # existing objects that have a record.
-    def after_validation_on_update()  end
-
-    def valid_with_callbacks? #:nodoc:
-      return false if callback(:before_validation) == false
-      if new_record? then result = callback(:before_validation_on_create) else result = callback(:before_validation_on_update) end
-      return false if false == result
-
-      result = valid_without_callbacks?
-
-      callback(:after_validation)
-      if new_record? then callback(:after_validation_on_create) else callback(:after_validation_on_update) end
-
-      return result
-    end
-
-    # Is called _before_ <tt>Base.destroy</tt>.
-    #
-    # Note: If you need to _destroy_ or _nullify_ associated records first,
-    # use the <tt>:dependent</tt> option on your associations.
-    def before_destroy() end
-
-    # Is called _after_ <tt>Base.destroy</tt> (and all the attributes have been frozen).
-    #
-    #  class Contact < ActiveRecord::Base
-    #    after_destroy { |record| logger.info( "Contact #{record.id} was destroyed." ) }
-    #  end
-    def after_destroy()  end
-    def destroy_with_callbacks #:nodoc:
-      return false if callback(:before_destroy) == false
-      result = destroy_without_callbacks
-      callback(:after_destroy)
-      result
-    end
-
-    private
-      def callback(method)
-        result = run_callbacks(method) { |result, object| false == result }
-
-        if result != false && respond_to_without_attributes?(method)
-          result = send(method)
-        end
-
-        notify(method)
-
-        return result
-      end
-
-      def notify(method) #:nodoc:
-        self.class.changed
-        self.class.notify_observers(method, self)
-      end
-  end
-end
@@ -1,371 +0,0 @@
-require 'monitor'
-require 'set'
-
-module ActiveRecord
-  # Raised when a connection could not be obtained within the connection
-  # acquisition timeout period.
-  class ConnectionTimeoutError < ConnectionNotEstablished
-  end
-
-  module ConnectionAdapters
-    # Connection pool base class for managing ActiveRecord database
-    # connections.
-    #
-    # == Introduction
-    #
-    # A connection pool synchronizes thread access to a limited number of
-    # database connections. The basic idea is that each thread checks out a
-    # database connection from the pool, uses that connection, and checks the
-    # connection back in. ConnectionPool is completely thread-safe, and will
-    # ensure that a connection cannot be used by two threads at the same time,
-    # as long as ConnectionPool's contract is correctly followed. It will also
-    # handle cases in which there are more threads than connections: if all
-    # connections have been checked out, and a thread tries to checkout a
-    # connection anyway, then ConnectionPool will wait until some other thread
-    # has checked in a connection.
-    #
-    # == Obtaining (checking out) a connection
-    #
-    # Connections can be obtained and used from a connection pool in several
-    # ways:
-    #
-    # 1. Simply use ActiveRecord::Base.connection as with ActiveRecord 2.1 and
-    #    earlier (pre-connection-pooling). Eventually, when you're done with
-    #    the connection(s) and wish it to be returned to the pool, you call
-    #    ActiveRecord::Base.clear_active_connections!. This will be the
-    #    default behavior for ActiveRecord when used in conjunction with
-    #    ActionPack's request handling cycle.
-    # 2. Manually check out a connection from the pool with
-    #    ActiveRecord::Base.connection_pool.checkout. You are responsible for
-    #    returning this connection to the pool when finished by calling
-    #    ActiveRecord::Base.connection_pool.checkin(connection).
-    # 3. Use ActiveRecord::Base.connection_pool.with_connection(&block), which
-    #    obtains a connection, yields it as the sole argument to the block,
-    #    and returns it to the pool after the block completes.
-    #
-    # Connections in the pool are actually AbstractAdapter objects (or objects
-    # compatible with AbstractAdapter's interface).
-    #
-    # == Options
-    #
-    # There are two connection-pooling-related options that you can add to
-    # your database connection configuration:
-    #
-    # * +pool+: number indicating size of connection pool (default 5)
-    # * +wait_timeout+: number of seconds to block and wait for a connection
-    #   before giving up and raising a timeout error (default 5 seconds).
-    class ConnectionPool
-      attr_reader :spec
-
-      # Creates a new ConnectionPool object. +spec+ is a ConnectionSpecification
-      # object which describes database connection information (e.g. adapter,
-      # host name, username, password, etc), as well as the maximum size for
-      # this ConnectionPool.
-      #
-      # The default ConnectionPool maximum size is 5.
-      def initialize(spec)
-        @spec = spec
-
-        # The cache of reserved connections mapped to threads
-        @reserved_connections = {}
-
-        # The mutex used to synchronize pool access
-        @connection_mutex = Monitor.new
-        @queue = @connection_mutex.new_cond
-
-        # default 5 second timeout unless on ruby 1.9
-        @timeout =
-          if RUBY_VERSION < '1.9'
-            spec.config[:wait_timeout] || 5
-          end
-
-        # default max pool size to 5
-        @size = (spec.config[:pool] && spec.config[:pool].to_i) || 5
-
-        @connections = []
-        @checked_out = []
-      end
-
-      # Retrieve the connection associated with the current thread, or call
-      # #checkout to obtain one if necessary.
-      #
-      # #connection can be called any number of times; the connection is
-      # held in a hash keyed by the thread id.
-      def connection
-        if conn = @reserved_connections[current_connection_id]
-          conn
-        else
-          @reserved_connections[current_connection_id] = checkout
-        end
-      end
-
-      # Signal that the thread is finished with the current connection.
-      # #release_connection releases the connection-thread association
-      # and returns the connection to the pool.
-      def release_connection
-        conn = @reserved_connections.delete(current_connection_id)
-        checkin conn if conn
-      end
-
-      # Reserve a connection, and yield it to a block. Ensure the connection is
-      # checked back in when finished.
-      def with_connection
-        conn = checkout
-        yield conn
-      ensure
-        checkin conn
-      end
-
-      # Returns true if a connection has already been opened.
-      def connected?
-        !@connections.empty?
-      end
-
-      # Disconnects all connections in the pool, and clears the pool.
-      def disconnect!
-        @reserved_connections.each do |name,conn|
-          checkin conn
-        end
-        @reserved_connections = {}
-        @connections.each do |conn|
-          conn.disconnect!
-        end
-        @connections = []
-      end
-
-      # Clears the cache which maps classes
-      def clear_reloadable_connections!
-        @reserved_connections.each do |name, conn|
-          checkin conn
-        end
-        @reserved_connections = {}
-        @connections.each do |conn|
-          conn.disconnect! if conn.requires_reloading?
-        end
-        @connections = []
-      end
-
-      # Verify active connections and remove and disconnect connections
-      # associated with stale threads.
-      def verify_active_connections! #:nodoc:
-        clear_stale_cached_connections!
-        @connections.each do |connection|
-          connection.verify!
-        end
-      end
-
-      # Return any checked-out connections back to the pool by threads that
-      # are no longer alive.
-      def clear_stale_cached_connections!
-        remove_stale_cached_threads!(@reserved_connections) do |name, conn|
-          checkin conn
-        end
-      end
-
-      # Check-out a database connection from the pool, indicating that you want
-      # to use it. You should call #checkin when you no longer need this.
-      #
-      # This is done by either returning an existing connection, or by creating
-      # a new connection. If the maximum number of connections for this pool has
-      # already been reached, but the pool is empty (i.e. they're all being used),
-      # then this method will wait until a thread has checked in a connection.
-      # The wait time is bounded however: if no connection can be checked out
-      # within the timeout specified for this pool, then a ConnectionTimeoutError
-      # exception will be raised.
-      #
-      # Returns: an AbstractAdapter object.
-      #
-      # Raises:
-      # - ConnectionTimeoutError: no connection can be obtained from the pool
-      #   within the timeout period.
-      def checkout
-        # Checkout an available connection
-        @connection_mutex.synchronize do
-          loop do
-            conn = if @checked_out.size < @connections.size
-                     checkout_existing_connection
-                   elsif @connections.size < @size
-                     checkout_new_connection
-                   end
-            return conn if conn
-            # No connections available; wait for one
-            if @queue.wait(@timeout)
-              next
-            else
-              # try looting dead threads
-              clear_stale_cached_connections!
-              if @size == @checked_out.size
-                raise ConnectionTimeoutError, "could not obtain a database connection#{" within #{@timeout} seconds" if @timeout}.  The max pool size is currently #{@size}; consider increasing it."
-              end
-            end
-          end
-        end
-      end
-
-      # Check-in a database connection back into the pool, indicating that you
-      # no longer need this connection.
-      #
-      # +conn+: an AbstractAdapter object, which was obtained by earlier by
-      # calling +checkout+ on this pool.
-      def checkin(conn)
-        @connection_mutex.synchronize do
-          conn.run_callbacks :checkin
-          @checked_out.delete conn
-          @queue.signal
-        end
-      end
-
-      synchronize :clear_reloadable_connections!, :verify_active_connections!,
-        :connected?, :disconnect!, :with => :@connection_mutex
-
-      private
-      def new_connection
-        ActiveRecord::Base.send(spec.adapter_method, spec.config)
-      end
-
-      def current_connection_id #:nodoc:
-        Thread.current.object_id
-      end
-
-      # Remove stale threads from the cache.
-      def remove_stale_cached_threads!(cache, &block)
-        keys = Set.new(cache.keys)
-
-        Thread.list.each do |thread|
-          keys.delete(thread.object_id) if thread.alive?
-        end
-        keys.each do |key|
-          next unless cache.has_key?(key)
-          block.call(key, cache[key])
-          cache.delete(key)
-        end
-      end
-
-      def checkout_new_connection
-        c = new_connection
-        @connections << c
-        checkout_and_verify(c)
-      end
-
-      def checkout_existing_connection
-        c = (@connections - @checked_out).first
-        checkout_and_verify(c)
-      end
-
-      def checkout_and_verify(c)
-        c.verify!
-        c.run_callbacks :checkout
-        @checked_out << c
-        c
-      end
-    end
-
-    # ConnectionHandler is a collection of ConnectionPool objects. It is used
-    # for keeping separate connection pools for ActiveRecord models that connect
-    # to different databases.
-    #
-    # For example, suppose that you have 5 models, with the following hierarchy:
-    #
-    #  |
-    #  +-- Book
-    #  |    |
-    #  |    +-- ScaryBook
-    #  |    +-- GoodBook
-    #  +-- Author
-    #  +-- BankAccount
-    #
-    # Suppose that Book is to connect to a separate database (i.e. one other
-    # than the default database). Then Book, ScaryBook and GoodBook will all use
-    # the same connection pool. Likewise, Author and BankAccount will use the
-    # same connection pool. However, the connection pool used by Author/BankAccount
-    # is not the same as the one used by Book/ScaryBook/GoodBook.
-    #
-    # Normally there is only a single ConnectionHandler instance, accessible via
-    # ActiveRecord::Base.connection_handler. ActiveRecord models use this to
-    # determine that connection pool that they should use.
-    class ConnectionHandler
-      def initialize(pools = {})
-        @connection_pools = pools
-      end
-
-      def connection_pools
-        @connection_pools ||= {}
-      end
-
-      def establish_connection(name, spec)
-        @connection_pools[name] = ConnectionAdapters::ConnectionPool.new(spec)
-      end
-
-      # Returns any connections in use by the current thread back to the pool,
-      # and also returns connections to the pool cached by threads that are no
-      # longer alive.
-      def clear_active_connections!
-        @connection_pools.each_value {|pool| pool.release_connection }
-      end
-
-      # Clears the cache which maps classes
-      def clear_reloadable_connections!
-        @connection_pools.each_value {|pool| pool.clear_reloadable_connections! }
-      end
-
-      def clear_all_connections!
-        @connection_pools.each_value {|pool| pool.disconnect! }
-      end
-
-      # Verify active connections.
-      def verify_active_connections! #:nodoc:
-        @connection_pools.each_value {|pool| pool.verify_active_connections! }
-      end
-
-      # Locate the connection of the nearest super class. This can be an
-      # active or defined connection: if it is the latter, it will be
-      # opened and set as the active connection for the class it was defined
-      # for (not necessarily the current class).
-      def retrieve_connection(klass) #:nodoc:
-        pool = retrieve_connection_pool(klass)
-        (pool && pool.connection) or raise ConnectionNotEstablished
-      end
-
-      # Returns true if a connection that's accessible to this class has
-      # already been opened.
-      def connected?(klass)
-        conn = retrieve_connection_pool(klass)
-        conn ? conn.connected? : false
-      end
-
-      # Remove the connection for this class. This will close the active
-      # connection and the defined connection (if they exist). The result
-      # can be used as an argument for establish_connection, for easily
-      # re-establishing the connection.
-      def remove_connection(klass)
-        pool = @connection_pools[klass.name]
-        @connection_pools.delete_if { |key, value| value == pool }
-        pool.disconnect! if pool
-        pool.spec.config if pool
-      end
-
-      def retrieve_connection_pool(klass)
-        pool = @connection_pools[klass.name]
-        return pool if pool
-        return nil if ActiveRecord::Base == klass
-        retrieve_connection_pool klass.superclass
-      end
-    end
-
-    class ConnectionManagement
-      def initialize(app)
-        @app = app
-      end
-
-      def call(env)
-        @app.call(env)
-      ensure
-        # Don't return connection (and peform implicit rollback) if
-        # this request is a part of integration test
-        unless env.key?("rack.test")
-          ActiveRecord::Base.clear_active_connections!
-        end
-      end
-    end
-  end
-end
@@ -1,139 +0,0 @@
-module ActiveRecord
-  class Base
-    class ConnectionSpecification #:nodoc:
-      attr_reader :config, :adapter_method
-      def initialize (config, adapter_method)
-        @config, @adapter_method = config, adapter_method
-      end
-    end
-
-    ##
-    # :singleton-method:
-    # The connection handler
-    cattr_accessor :connection_handler, :instance_writer => false
-    @@connection_handler = ConnectionAdapters::ConnectionHandler.new
-
-    # Returns the connection currently associated with the class. This can
-    # also be used to "borrow" the connection to do database work that isn't
-    # easily done without going straight to SQL.
-    def connection
-      self.class.connection
-    end
-
-    # Establishes the connection to the database. Accepts a hash as input where
-    # the <tt>:adapter</tt> key must be specified with the name of a database adapter (in lower-case)
-    # example for regular databases (MySQL, Postgresql, etc):
-    #
-    #   ActiveRecord::Base.establish_connection(
-    #     :adapter  => "mysql",
-    #     :host     => "localhost",
-    #     :username => "myuser",
-    #     :password => "mypass",
-    #     :database => "somedatabase"
-    #   )
-    #
-    # Example for SQLite database:
-    #
-    #   ActiveRecord::Base.establish_connection(
-    #     :adapter => "sqlite",
-    #     :database  => "path/to/dbfile"
-    #   )
-    #
-    # Also accepts keys as strings (for parsing from YAML for example):
-    #
-    #   ActiveRecord::Base.establish_connection(
-    #     "adapter" => "sqlite",
-    #     "database"  => "path/to/dbfile"
-    #   )
-    #
-    # The exceptions AdapterNotSpecified, AdapterNotFound and ArgumentError
-    # may be returned on an error.
-    def self.establish_connection(spec = nil)
-      case spec
-        when nil
-          raise AdapterNotSpecified unless defined? RAILS_ENV
-          establish_connection(RAILS_ENV)
-        when ConnectionSpecification
-          @@connection_handler.establish_connection(name, spec)
-        when Symbol, String
-          if configuration = configurations[spec.to_s]
-            establish_connection(configuration)
-          else
-            raise AdapterNotSpecified, "#{spec} database is not configured"
-          end
-        else
-          spec = spec.symbolize_keys
-          unless spec.key?(:adapter) then raise AdapterNotSpecified, "database configuration does not specify adapter" end
-
-          begin
-            require 'rubygems'
-            gem "activerecord-#{spec[:adapter]}-adapter"
-            require "active_record/connection_adapters/#{spec[:adapter]}_adapter"
-          rescue LoadError
-            begin
-              require "active_record/connection_adapters/#{spec[:adapter]}_adapter"
-            rescue LoadError
-              raise "Please install the #{spec[:adapter]} adapter: `gem install activerecord-#{spec[:adapter]}-adapter` (#{$!})"
-            end
-          end
-
-          adapter_method = "#{spec[:adapter]}_connection"
-          if !respond_to?(adapter_method)
-            raise AdapterNotFound, "database configuration specifies nonexistent #{spec[:adapter]} adapter"
-          end
-
-          remove_connection
-          establish_connection(ConnectionSpecification.new(spec, adapter_method))
-      end
-    end
-
-    class << self
-      # Deprecated and no longer has any effect.
-      def allow_concurrency
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.allow_concurrency has been deprecated and no longer has any effect. Please remove all references to allow_concurrency.")
-      end
-
-      # Deprecated and no longer has any effect.
-      def allow_concurrency=(flag)
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.allow_concurrency= has been deprecated and no longer has any effect. Please remove all references to allow_concurrency=.")
-      end
-
-      # Deprecated and no longer has any effect.
-      def verification_timeout
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.verification_timeout has been deprecated and no longer has any effect. Please remove all references to verification_timeout.")
-      end
-
-      # Deprecated and no longer has any effect.
-      def verification_timeout=(flag)
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base.verification_timeout= has been deprecated and no longer has any effect. Please remove all references to verification_timeout=.")
-      end
-
-      # Returns the connection currently associated with the class. This can
-      # also be used to "borrow" the connection to do database work unrelated
-      # to any of the specific Active Records.
-      def connection
-        retrieve_connection
-      end
-
-      def connection_pool
-        connection_handler.retrieve_connection_pool(self)
-      end
-
-      def retrieve_connection
-        connection_handler.retrieve_connection(self)
-      end
-
-      # Returns true if +ActiveRecord+ is connected.
-      def connected?
-        connection_handler.connected?(self)
-      end
-
-      def remove_connection(klass = self)
-        connection_handler.remove_connection(klass)
-      end
-
-      delegate :clear_active_connections!, :clear_reloadable_connections!,
-        :clear_all_connections!,:verify_active_connections!, :to => :connection_handler
-    end
-  end
-end
@@ -1,289 +0,0 @@
-module ActiveRecord
-  module ConnectionAdapters # :nodoc:
-    module DatabaseStatements
-      # Returns an array of record hashes with the column names as keys and
-      # column values as values.
-      def select_all(sql, name = nil)
-        select(sql, name)
-      end
-
-      # Returns a record hash with the column names as keys and column values
-      # as values.
-      def select_one(sql, name = nil)
-        result = select_all(sql, name)
-        result.first if result
-      end
-
-      # Returns a single value from a record
-      def select_value(sql, name = nil)
-        if result = select_one(sql, name)
-          result.values.first
-        end
-      end
-
-      # Returns an array of the values of the first column in a select:
-      #   select_values("SELECT id FROM companies LIMIT 3") => [1,2,3]
-      def select_values(sql, name = nil)
-        result = select_rows(sql, name)
-        result.map { |v| v[0] }
-      end
-
-      # Returns an array of arrays containing the field values.
-      # Order is the same as that returned by +columns+.
-      def select_rows(sql, name = nil)
-      end
-      undef_method :select_rows
-
-      # Executes the SQL statement in the context of this connection.
-      def execute(sql, name = nil, skip_logging = false)
-      end
-      undef_method :execute
-
-      # Returns the last auto-generated ID from the affected table.
-      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
-        insert_sql(sql, name, pk, id_value, sequence_name)
-      end
-
-      # Executes the update statement and returns the number of rows affected.
-      def update(sql, name = nil)
-        update_sql(sql, name)
-      end
-
-      # Executes the delete statement and returns the number of rows affected.
-      def delete(sql, name = nil)
-        delete_sql(sql, name)
-      end
-      
-      # Checks whether there is currently no transaction active. This is done
-      # by querying the database driver, and does not use the transaction
-      # house-keeping information recorded by #increment_open_transactions and
-      # friends.
-      #
-      # Returns true if there is no transaction active, false if there is a
-      # transaction active, and nil if this information is unknown.
-      #
-      # Not all adapters supports transaction state introspection. Currently,
-      # only the PostgreSQL adapter supports this.
-      def outside_transaction?
-        nil
-      end
-
-      # Runs the given block in a database transaction, and returns the result
-      # of the block.
-      #
-      # == Nested transactions support
-      #
-      # Most databases don't support true nested transactions. At the time of
-      # writing, the only database that supports true nested transactions that
-      # we're aware of, is MS-SQL.
-      #
-      # In order to get around this problem, #transaction will emulate the effect
-      # of nested transactions, by using savepoints:
-      # http://dev.mysql.com/doc/refman/5.0/en/savepoints.html
-      # Savepoints are supported by MySQL and PostgreSQL, but not SQLite3.
-      #
-      # It is safe to call this method if a database transaction is already open,
-      # i.e. if #transaction is called within another #transaction block. In case
-      # of a nested call, #transaction will behave as follows:
-      #
-      # - The block will be run without doing anything. All database statements
-      #   that happen within the block are effectively appended to the already
-      #   open database transaction.
-      # - However, if +:requires_new+ is set, the block will be wrapped in a
-      #   database savepoint acting as a sub-transaction.
-      #
-      # === Caveats
-      #
-      # MySQL doesn't support DDL transactions. If you perform a DDL operation,
-      # then any created savepoints will be automatically released. For example,
-      # if you've created a savepoint, then you execute a CREATE TABLE statement,
-      # then the savepoint that was created will be automatically released.
-      #
-      # This means that, on MySQL, you shouldn't execute DDL operations inside
-      # a #transaction call that you know might create a savepoint. Otherwise,
-      # #transaction will raise exceptions when it tries to release the
-      # already-automatically-released savepoints:
-      #
-      #   Model.connection.transaction do  # BEGIN
-      #     Model.connection.transaction(:requires_new => true) do  # CREATE SAVEPOINT active_record_1
-      #       Model.connection.create_table(...)
-      #       # active_record_1 now automatically released
-      #     end  # RELEASE SAVEPOINT active_record_1  <--- BOOM! database error!
-      #   end
-      def transaction(options = {})
-        options.assert_valid_keys :requires_new, :joinable
-
-        last_transaction_joinable = @transaction_joinable
-        if options.has_key?(:joinable)
-          @transaction_joinable = options[:joinable]
-        else
-          @transaction_joinable = true
-        end
-        requires_new = options[:requires_new] || !last_transaction_joinable
-
-        transaction_open = false
-        begin
-          if block_given?
-            if requires_new || open_transactions == 0
-              if open_transactions == 0
-                begin_db_transaction
-              elsif requires_new
-                create_savepoint
-              end
-              increment_open_transactions
-              transaction_open = true
-            end
-            yield
-          end
-        rescue Exception => database_transaction_rollback
-          if transaction_open && !outside_transaction?
-            transaction_open = false
-            decrement_open_transactions
-            if open_transactions == 0
-              rollback_db_transaction
-            else
-              rollback_to_savepoint
-            end
-          end
-          raise unless database_transaction_rollback.is_a?(ActiveRecord::Rollback)
-        end
-      ensure
-        @transaction_joinable = last_transaction_joinable
-
-        if outside_transaction?
-          @open_transactions = 0
-        elsif transaction_open
-          decrement_open_transactions
-          begin
-            if open_transactions == 0
-              commit_db_transaction
-            else
-              release_savepoint
-            end
-          rescue Exception => database_transaction_rollback
-            if open_transactions == 0
-              rollback_db_transaction
-            else
-              rollback_to_savepoint
-            end
-            raise
-          end
-        end
-      end
-      
-      # Begins the transaction (and turns off auto-committing).
-      def begin_db_transaction()    end
-
-      # Commits the transaction (and turns on auto-committing).
-      def commit_db_transaction()   end
-
-      # Rolls back the transaction (and turns on auto-committing). Must be
-      # done if the transaction block raises an exception or returns false.
-      def rollback_db_transaction() end
-
-      # Alias for <tt>add_limit_offset!</tt>.
-      def add_limit!(sql, options)
-        add_limit_offset!(sql, options) if options
-      end
-
-      # Appends +LIMIT+ and +OFFSET+ options to an SQL statement, or some SQL
-      # fragment that has the same semantics as LIMIT and OFFSET.
-      #
-      # +options+ must be a Hash which contains a +:limit+ option (required)
-      # and an +:offset+ option (optional).
-      #
-      # This method *modifies* the +sql+ parameter.
-      #
-      # ===== Examples
-      #  add_limit_offset!('SELECT * FROM suppliers', {:limit => 10, :offset => 50})
-      # generates
-      #  SELECT * FROM suppliers LIMIT 10 OFFSET 50
-      def add_limit_offset!(sql, options)
-        if limit = options[:limit]
-          sql << " LIMIT #{sanitize_limit(limit)}"
-          if offset = options[:offset]
-            sql << " OFFSET #{offset.to_i}"
-          end
-        end
-        sql
-      end
-
-      # Appends a locking clause to an SQL statement.
-      # This method *modifies* the +sql+ parameter.
-      #   # SELECT * FROM suppliers FOR UPDATE
-      #   add_lock! 'SELECT * FROM suppliers', :lock => true
-      #   add_lock! 'SELECT * FROM suppliers', :lock => ' FOR UPDATE'
-      def add_lock!(sql, options)
-        case lock = options[:lock]
-          when true;   sql << ' FOR UPDATE'
-          when String; sql << " #{lock}"
-        end
-      end
-
-      def default_sequence_name(table, column)
-        nil
-      end
-
-      # Set the sequence to the max value of the table's column.
-      def reset_sequence!(table, column, sequence = nil)
-        # Do nothing by default.  Implement for PostgreSQL, Oracle, ...
-      end
-
-      # Inserts the given fixture into the table. Overridden in adapters that require
-      # something beyond a simple insert (eg. Oracle).
-      def insert_fixture(fixture, table_name)
-        execute "INSERT INTO #{quote_table_name(table_name)} (#{fixture.key_list}) VALUES (#{fixture.value_list})", 'Fixture Insert'
-      end
-
-      def empty_insert_statement(table_name)
-        "INSERT INTO #{quote_table_name(table_name)} VALUES(DEFAULT)"
-      end
-
-      def case_sensitive_equality_operator
-        "="
-      end
-
-      def limited_update_conditions(where_sql, quoted_table_name, quoted_primary_key)
-        "WHERE #{quoted_primary_key} IN (SELECT #{quoted_primary_key} FROM #{quoted_table_name} #{where_sql})"
-      end
-
-      protected
-        # Returns an array of record hashes with the column names as keys and
-        # column values as values.
-        def select(sql, name = nil)
-        end
-        undef_method :select
-
-        # Returns the last auto-generated ID from the affected table.
-        def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
-          execute(sql, name)
-          id_value
-        end
-
-        # Executes the update statement and returns the number of rows affected.
-        def update_sql(sql, name = nil)
-          execute(sql, name)
-        end
-
-        # Executes the delete statement and returns the number of rows affected.
-        def delete_sql(sql, name = nil)
-          update_sql(sql, name)
-        end
-
-        # Sanitizes the given LIMIT parameter in order to prevent SQL injection.
-        #
-        # +limit+ may be anything that can evaluate to a string via #to_s. It
-        # should look like an integer, or a comma-delimited list of integers.
-        #
-        # Returns the sanitized limit parameter, either as an integer, or as a
-        # string which contains a comma-delimited list of integers.
-        def sanitize_limit(limit)
-          if limit.to_s =~ /,/
-            limit.to_s.split(',').map{ |i| i.to_i }.join(',')
-          else
-            limit.to_i
-          end
-        end
-    end
-  end
-end
@@ -1,94 +0,0 @@
-module ActiveRecord
-  module ConnectionAdapters # :nodoc:
-    module QueryCache
-      class << self
-        def included(base)
-          base.class_eval do
-            alias_method_chain :columns, :query_cache
-            alias_method_chain :select_all, :query_cache
-          end
-
-          dirties_query_cache base, :insert, :update, :delete
-        end
-
-        def dirties_query_cache(base, *method_names)
-          method_names.each do |method_name|
-            base.class_eval <<-end_code, __FILE__, __LINE__
-              def #{method_name}_with_query_dirty(*args)        # def update_with_query_dirty(*args)
-                clear_query_cache if @query_cache_enabled       #   clear_query_cache if @query_cache_enabled
-                #{method_name}_without_query_dirty(*args)       #   update_without_query_dirty(*args)
-              end                                               # end
-                                                                #
-              alias_method_chain :#{method_name}, :query_dirty  # alias_method_chain :update, :query_dirty
-            end_code
-          end
-        end
-      end
-
-      attr_reader :query_cache, :query_cache_enabled
-
-      # Enable the query cache within the block.
-      def cache
-        old, @query_cache_enabled = @query_cache_enabled, true
-        @query_cache ||= {}
-        yield
-      ensure
-        clear_query_cache
-        @query_cache_enabled = old
-      end
-
-      # Disable the query cache within the block.
-      def uncached
-        old, @query_cache_enabled = @query_cache_enabled, false
-        yield
-      ensure
-        @query_cache_enabled = old
-      end
-
-      # Clears the query cache.
-      #
-      # One reason you may wish to call this method explicitly is between queries
-      # that ask the database to randomize results. Otherwise the cache would see
-      # the same SQL query and repeatedly return the same result each time, silently
-      # undermining the randomness you were expecting.
-      def clear_query_cache
-        @query_cache.clear if @query_cache
-      end
-
-      def select_all_with_query_cache(*args)
-        if @query_cache_enabled
-          cache_sql(args.first) { select_all_without_query_cache(*args) }
-        else
-          select_all_without_query_cache(*args)
-        end
-      end
-
-      def columns_with_query_cache(*args)
-        if @query_cache_enabled
-          @query_cache["SHOW FIELDS FROM #{args.first}"] ||= columns_without_query_cache(*args)
-        else
-          columns_without_query_cache(*args)
-        end
-      end
-
-      private
-        def cache_sql(sql)
-          result =
-            if @query_cache.has_key?(sql)
-              log_info(sql, "CACHE", 0.0)
-              @query_cache[sql]
-            else
-              @query_cache[sql] = yield
-            end
-
-          if Array === result
-            result.collect { |row| row.dup }
-          else
-            result.duplicable? ? result.dup : result
-          end
-        rescue TypeError
-          result
-        end
-    end
-  end
-end
@@ -1,69 +0,0 @@
-module ActiveRecord
-  module ConnectionAdapters # :nodoc:
-    module Quoting
-      # Quotes the column value to help prevent
-      # {SQL injection attacks}[http://en.wikipedia.org/wiki/SQL_injection].
-      def quote(value, column = nil)
-        # records are quoted as their primary key
-        return value.quoted_id if value.respond_to?(:quoted_id)
-
-        case value
-          when String, ActiveSupport::Multibyte::Chars
-            value = value.to_s
-            if column && column.type == :binary && column.class.respond_to?(:string_to_binary)
-              "#{quoted_string_prefix}'#{quote_string(column.class.string_to_binary(value))}'" # ' (for ruby-mode)
-            elsif column && [:integer, :float].include?(column.type)
-              value = column.type == :integer ? value.to_i : value.to_f
-              value.to_s
-            else
-              "#{quoted_string_prefix}'#{quote_string(value)}'" # ' (for ruby-mode)
-            end
-          when NilClass                 then "NULL"
-          when TrueClass                then (column && column.type == :integer ? '1' : quoted_true)
-          when FalseClass               then (column && column.type == :integer ? '0' : quoted_false)
-          when Float, Fixnum, Bignum    then value.to_s
-          # BigDecimals need to be output in a non-normalized form and quoted.
-          when BigDecimal               then value.to_s('F')
-          else
-            if value.acts_like?(:date) || value.acts_like?(:time)
-              "'#{quoted_date(value)}'"
-            else
-              "#{quoted_string_prefix}'#{quote_string(value.to_yaml)}'"
-            end
-        end
-      end
-
-      # Quotes a string, escaping any ' (single quote) and \ (backslash)
-      # characters.
-      def quote_string(s)
-        s.gsub(/\\/, '\&\&').gsub(/'/, "''") # ' (for ruby-mode)
-      end
-
-      # Quotes the column name. Defaults to no quoting.
-      def quote_column_name(column_name)
-        column_name
-      end
-
-      # Quotes the table name. Defaults to column name quoting.
-      def quote_table_name(table_name)
-        quote_column_name(table_name)
-      end
-
-      def quoted_true
-        "'t'"
-      end
-
-      def quoted_false
-        "'f'"
-      end
-
-      def quoted_date(value)
-        value.to_s(:db)
-      end
-
-      def quoted_string_prefix
-        ''
-      end
-    end
-  end
-end
@@ -1,722 +0,0 @@
-require 'date'
-require 'set'
-require 'bigdecimal'
-require 'bigdecimal/util'
-
-module ActiveRecord
-  module ConnectionAdapters #:nodoc:
-    # An abstract definition of a column in a table.
-    class Column
-      TRUE_VALUES = [true, 1, '1', 't', 'T', 'true', 'TRUE'].to_set
-      FALSE_VALUES = [false, 0, '0', 'f', 'F', 'false', 'FALSE'].to_set
-
-      module Format
-        ISO_DATE = /\A(\d{4})-(\d\d)-(\d\d)\z/
-        ISO_DATETIME = /\A(\d{4})-(\d\d)-(\d\d) (\d\d):(\d\d):(\d\d)(\.\d+)?\z/
-      end
-
-      attr_reader :name, :default, :type, :limit, :null, :sql_type, :precision, :scale
-      attr_accessor :primary
-
-      # Instantiates a new column in the table.
-      #
-      # +name+ is the column's name, such as <tt>supplier_id</tt> in <tt>supplier_id int(11)</tt>.
-      # +default+ is the type-casted default value, such as +new+ in <tt>sales_stage varchar(20) default 'new'</tt>.
-      # +sql_type+ is only used to extract the column's length, if necessary. For example +60+ in <tt>company_name varchar(60)</tt>.
-      # +null+ determines if this column allows +NULL+ values.
-      def initialize(name, default, sql_type = nil, null = true)
-        @name, @sql_type, @null = name, sql_type, null
-        @limit, @precision, @scale = extract_limit(sql_type), extract_precision(sql_type), extract_scale(sql_type)
-        @type = simplified_type(sql_type)
-        @default = extract_default(default)
-
-        @primary = nil
-      end
-
-      # Returns +true+ if the column is either of type string or text.
-      def text?
-        type == :string || type == :text
-      end
-
-      # Returns +true+ if the column is either of type integer, float or decimal.
-      def number?
-        type == :integer || type == :float || type == :decimal
-      end
-
-      def has_default?
-        !default.nil?
-      end
-
-      # Returns the Ruby class that corresponds to the abstract data type.
-      def klass
-        case type
-          when :integer       then Fixnum
-          when :float         then Float
-          when :decimal       then BigDecimal
-          when :datetime      then Time
-          when :date          then Date
-          when :timestamp     then Time
-          when :time          then Time
-          when :text, :string then String
-          when :binary        then String
-          when :boolean       then Object
-        end
-      end
-
-      # Casts value (which is a String) to an appropriate instance.
-      def type_cast(value)
-        return nil if value.nil?
-        case type
-          when :string    then value
-          when :text      then value
-          when :integer   then value.to_i rescue value ? 1 : 0
-          when :float     then value.to_f
-          when :decimal   then self.class.value_to_decimal(value)
-          when :datetime  then self.class.string_to_time(value)
-          when :timestamp then self.class.string_to_time(value)
-          when :time      then self.class.string_to_dummy_time(value)
-          when :date      then self.class.string_to_date(value)
-          when :binary    then self.class.binary_to_string(value)
-          when :boolean   then self.class.value_to_boolean(value)
-          else value
-        end
-      end
-
-      def type_cast_code(var_name)
-        case type
-          when :string    then nil
-          when :text      then nil
-          when :integer   then "(#{var_name}.to_i rescue #{var_name} ? 1 : 0)"
-          when :float     then "#{var_name}.to_f"
-          when :decimal   then "#{self.class.name}.value_to_decimal(#{var_name})"
-          when :datetime  then "#{self.class.name}.string_to_time(#{var_name})"
-          when :timestamp then "#{self.class.name}.string_to_time(#{var_name})"
-          when :time      then "#{self.class.name}.string_to_dummy_time(#{var_name})"
-          when :date      then "#{self.class.name}.string_to_date(#{var_name})"
-          when :binary    then "#{self.class.name}.binary_to_string(#{var_name})"
-          when :boolean   then "#{self.class.name}.value_to_boolean(#{var_name})"
-          else nil
-        end
-      end
-
-      # Returns the human name of the column name.
-      #
-      # ===== Examples
-      #  Column.new('sales_stage', ...).human_name # => 'Sales stage'
-      def human_name
-        Base.human_attribute_name(@name)
-      end
-
-      def extract_default(default)
-        type_cast(default)
-      end
-
-      class << self
-        # Used to convert from Strings to BLOBs
-        def string_to_binary(value)
-          value
-        end
-
-        # Used to convert from BLOBs to Strings
-        def binary_to_string(value)
-          value
-        end
-
-        def string_to_date(string)
-          return string unless string.is_a?(String)
-          return nil if string.empty?
-
-          fast_string_to_date(string) || fallback_string_to_date(string)
-        end
-
-        def string_to_time(string)
-          return string unless string.is_a?(String)
-          return nil if string.empty?
-
-          fast_string_to_time(string) || fallback_string_to_time(string)
-        end
-
-        def string_to_dummy_time(string)
-          return string unless string.is_a?(String)
-          return nil if string.empty?
-
-          string_to_time "2000-01-01 #{string}"
-        end
-
-        # convert something to a boolean
-        def value_to_boolean(value)
-          if value.is_a?(String) && value.blank?
-            nil
-          else
-            TRUE_VALUES.include?(value)
-          end
-        end
-
-        # convert something to a BigDecimal
-        def value_to_decimal(value)
-          # Using .class is faster than .is_a? and
-          # subclasses of BigDecimal will be handled
-          # in the else clause
-          if value.class == BigDecimal
-            value
-          elsif value.respond_to?(:to_d)
-            value.to_d
-          else
-            value.to_s.to_d
-          end
-        end
-
-        protected
-          # '0.123456' -> 123456
-          # '1.123456' -> 123456
-          def microseconds(time)
-            ((time[:sec_fraction].to_f % 1) * 1_000_000).to_i
-          end
-
-          def new_date(year, mon, mday)
-            if year && year != 0
-              Date.new(year, mon, mday) rescue nil
-            end
-          end
-
-          def new_time(year, mon, mday, hour, min, sec, microsec)
-            # Treat 0000-00-00 00:00:00 as nil.
-            return nil if year.nil? || year == 0
-
-            Time.time_with_datetime_fallback(Base.default_timezone, year, mon, mday, hour, min, sec, microsec) rescue nil
-          end
-
-          def fast_string_to_date(string)
-            if string =~ Format::ISO_DATE
-              new_date $1.to_i, $2.to_i, $3.to_i
-            end
-          end
-
-          # Doesn't handle time zones.
-          def fast_string_to_time(string)
-            if string =~ Format::ISO_DATETIME
-              microsec = ($7.to_f * 1_000_000).to_i
-              new_time $1.to_i, $2.to_i, $3.to_i, $4.to_i, $5.to_i, $6.to_i, microsec
-            end
-          end
-
-          def fallback_string_to_date(string)
-            new_date(*::Date._parse(string, false).values_at(:year, :mon, :mday))
-          end
-
-          def fallback_string_to_time(string)
-            time_hash = Date._parse(string)
-            time_hash[:sec_fraction] = microseconds(time_hash)
-
-            new_time(*time_hash.values_at(:year, :mon, :mday, :hour, :min, :sec, :sec_fraction))
-          end
-      end
-
-      private
-        def extract_limit(sql_type)
-          $1.to_i if sql_type =~ /\((.*)\)/
-        end
-
-        def extract_precision(sql_type)
-          $2.to_i if sql_type =~ /^(numeric|decimal|number)\((\d+)(,\d+)?\)/i
-        end
-
-        def extract_scale(sql_type)
-          case sql_type
-            when /^(numeric|decimal|number)\((\d+)\)/i then 0
-            when /^(numeric|decimal|number)\((\d+)(,(\d+))\)/i then $4.to_i
-          end
-        end
-
-        def simplified_type(field_type)
-          case field_type
-            when /int/i
-              :integer
-            when /float|double/i
-              :float
-            when /decimal|numeric|number/i
-              extract_scale(field_type) == 0 ? :integer : :decimal
-            when /datetime/i
-              :datetime
-            when /timestamp/i
-              :timestamp
-            when /time/i
-              :time
-            when /date/i
-              :date
-            when /clob/i, /text/i
-              :text
-            when /blob/i, /binary/i
-              :binary
-            when /char/i, /string/i
-              :string
-            when /boolean/i
-              :boolean
-          end
-        end
-    end
-
-    class IndexDefinition < Struct.new(:table, :name, :unique, :columns) #:nodoc:
-    end
-
-    # Abstract representation of a column definition. Instances of this type
-    # are typically created by methods in TableDefinition, and added to the
-    # +columns+ attribute of said TableDefinition object, in order to be used
-    # for generating a number of table creation or table changing SQL statements.
-    class ColumnDefinition < Struct.new(:base, :name, :type, :limit, :precision, :scale, :default, :null) #:nodoc:
-
-      def sql_type
-        base.type_to_sql(type.to_sym, limit, precision, scale) rescue type
-      end
-
-      def to_sql
-        column_sql = "#{base.quote_column_name(name)} #{sql_type}"
-        column_options = {}
-        column_options[:null] = null unless null.nil?
-        column_options[:default] = default unless default.nil?
-        add_column_options!(column_sql, column_options) unless type.to_sym == :primary_key
-        column_sql
-      end
-
-      private
-
-        def add_column_options!(sql, options)
-          base.add_column_options!(sql, options.merge(:column => self))
-        end
-    end
-
-    # Represents the schema of an SQL table in an abstract way. This class
-    # provides methods for manipulating the schema representation.
-    #
-    # Inside migration files, the +t+ object in +create_table+ and
-    # +change_table+ is actually of this type:
-    #
-    #   class SomeMigration < ActiveRecord::Migration
-    #     def self.up
-    #       create_table :foo do |t|
-    #         puts t.class  # => "ActiveRecord::ConnectionAdapters::TableDefinition"
-    #       end
-    #     end
-    #
-    #     def self.down
-    #       ...
-    #     end
-    #   end
-    #
-    # The table definitions
-    # The Columns are stored as a ColumnDefinition in the +columns+ attribute.
-    class TableDefinition
-      # An array of ColumnDefinition objects, representing the column changes
-      # that have been defined.
-      attr_accessor :columns
-
-      def initialize(base)
-        @columns = []
-        @base = base
-      end
-
-      #Handles non supported datatypes - e.g. XML
-      def method_missing(symbol, *args)
-        if symbol.to_s == 'xml'
-          xml_column_fallback(args)
-        end
-      end
-
-      def xml_column_fallback(*args)
-        case @base.adapter_name.downcase
-          when 'sqlite', 'mysql'
-            options = args.extract_options!
-            column(args[0], :text, options)
-          end
-        end
-      # Appends a primary key definition to the table definition.
-      # Can be called multiple times, but this is probably not a good idea.
-      def primary_key(name)
-        column(name, :primary_key)
-      end
-
-      # Returns a ColumnDefinition for the column with name +name+.
-      def [](name)
-        @columns.find {|column| column.name.to_s == name.to_s}
-      end
-
-      # Instantiates a new column for the table.
-      # The +type+ parameter is normally one of the migrations native types,
-      # which is one of the following:
-      # <tt>:primary_key</tt>, <tt>:string</tt>, <tt>:text</tt>,
-      # <tt>:integer</tt>, <tt>:float</tt>, <tt>:decimal</tt>,
-      # <tt>:datetime</tt>, <tt>:timestamp</tt>, <tt>:time</tt>,
-      # <tt>:date</tt>, <tt>:binary</tt>, <tt>:boolean</tt>.
-      #
-      # You may use a type not in this list as long as it is supported by your
-      # database (for example, "polygon" in MySQL), but this will not be database
-      # agnostic and should usually be avoided.
-      #
-      # Available options are (none of these exists by default):
-      # * <tt>:limit</tt> -
-      #   Requests a maximum column length. This is number of characters for <tt>:string</tt> and <tt>:text</tt> columns and number of bytes for :binary and :integer columns.
-      # * <tt>:default</tt> -
-      #   The column's default value. Use nil for NULL.
-      # * <tt>:null</tt> -
-      #   Allows or disallows +NULL+ values in the column. This option could
-      #   have been named <tt>:null_allowed</tt>.
-      # * <tt>:precision</tt> -
-      #   Specifies the precision for a <tt>:decimal</tt> column.
-      # * <tt>:scale</tt> -
-      #   Specifies the scale for a <tt>:decimal</tt> column.
-      #
-      # For clarity's sake: the precision is the number of significant digits,
-      # while the scale is the number of digits that can be stored following
-      # the decimal point. For example, the number 123.45 has a precision of 5
-      # and a scale of 2. A decimal with a precision of 5 and a scale of 2 can
-      # range from -999.99 to 999.99.
-      #
-      # Please be aware of different RDBMS implementations behavior with
-      # <tt>:decimal</tt> columns:
-      # * The SQL standard says the default scale should be 0, <tt>:scale</tt> <=
-      #   <tt>:precision</tt>, and makes no comments about the requirements of
-      #   <tt>:precision</tt>.
-      # * MySQL: <tt>:precision</tt> [1..63], <tt>:scale</tt> [0..30].
-      #   Default is (10,0).
-      # * PostgreSQL: <tt>:precision</tt> [1..infinity],
-      #   <tt>:scale</tt> [0..infinity]. No default.
-      # * SQLite2: Any <tt>:precision</tt> and <tt>:scale</tt> may be used.
-      #   Internal storage as strings. No default.
-      # * SQLite3: No restrictions on <tt>:precision</tt> and <tt>:scale</tt>,
-      #   but the maximum supported <tt>:precision</tt> is 16. No default.
-      # * Oracle: <tt>:precision</tt> [1..38], <tt>:scale</tt> [-84..127].
-      #   Default is (38,0).
-      # * DB2: <tt>:precision</tt> [1..63], <tt>:scale</tt> [0..62].
-      #   Default unknown.
-      # * Firebird: <tt>:precision</tt> [1..18], <tt>:scale</tt> [0..18].
-      #   Default (9,0). Internal types NUMERIC and DECIMAL have different
-      #   storage rules, decimal being better.
-      # * FrontBase?: <tt>:precision</tt> [1..38], <tt>:scale</tt> [0..38].
-      #   Default (38,0). WARNING Max <tt>:precision</tt>/<tt>:scale</tt> for
-      #   NUMERIC is 19, and DECIMAL is 38.
-      # * SqlServer?: <tt>:precision</tt> [1..38], <tt>:scale</tt> [0..38].
-      #   Default (38,0).
-      # * Sybase: <tt>:precision</tt> [1..38], <tt>:scale</tt> [0..38].
-      #   Default (38,0).
-      # * OpenBase?: Documentation unclear. Claims storage in <tt>double</tt>.
-      #
-      # This method returns <tt>self</tt>.
-      #
-      # == Examples
-      #  # Assuming td is an instance of TableDefinition
-      #  td.column(:granted, :boolean)
-      #  # granted BOOLEAN
-      #
-      #  td.column(:picture, :binary, :limit => 2.megabytes)
-      #  # => picture BLOB(2097152)
-      #
-      #  td.column(:sales_stage, :string, :limit => 20, :default => 'new', :null => false)
-      #  # => sales_stage VARCHAR(20) DEFAULT 'new' NOT NULL
-      #
-      #  td.column(:bill_gates_money, :decimal, :precision => 15, :scale => 2)
-      #  # => bill_gates_money DECIMAL(15,2)
-      #
-      #  td.column(:sensor_reading, :decimal, :precision => 30, :scale => 20)
-      #  # => sensor_reading DECIMAL(30,20)
-      #
-      #  # While <tt>:scale</tt> defaults to zero on most databases, it
-      #  # probably wouldn't hurt to include it.
-      #  td.column(:huge_integer, :decimal, :precision => 30)
-      #  # => huge_integer DECIMAL(30)
-      #
-      #  # Defines a column with a database-specific type.
-      #  td.column(:foo, 'polygon')
-      #  # => foo polygon
-      #
-      # == Short-hand examples
-      #
-      # Instead of calling +column+ directly, you can also work with the short-hand definitions for the default types.
-      # They use the type as the method name instead of as a parameter and allow for multiple columns to be defined
-      # in a single statement.
-      #
-      # What can be written like this with the regular calls to column:
-      #
-      #   create_table "products", :force => true do |t|
-      #     t.column "shop_id",    :integer
-      #     t.column "creator_id", :integer
-      #     t.column "name",       :string,   :default => "Untitled"
-      #     t.column "value",      :string,   :default => "Untitled"
-      #     t.column "created_at", :datetime
-      #     t.column "updated_at", :datetime
-      #   end
-      #
-      # Can also be written as follows using the short-hand:
-      #
-      #   create_table :products do |t|
-      #     t.integer :shop_id, :creator_id
-      #     t.string  :name, :value, :default => "Untitled"
-      #     t.timestamps
-      #   end
-      #
-      # There's a short-hand method for each of the type values declared at the top. And then there's
-      # TableDefinition#timestamps that'll add created_at and +updated_at+ as datetimes.
-      #
-      # TableDefinition#references will add an appropriately-named _id column, plus a corresponding _type
-      # column if the <tt>:polymorphic</tt> option is supplied. If <tt>:polymorphic</tt> is a hash of options, these will be
-      # used when creating the <tt>_type</tt> column. So what can be written like this:
-      #
-      #   create_table :taggings do |t|
-      #     t.integer :tag_id, :tagger_id, :taggable_id
-      #     t.string  :tagger_type
-      #     t.string  :taggable_type, :default => 'Photo'
-      #   end
-      #
-      # Can also be written as follows using references:
-      #
-      #   create_table :taggings do |t|
-      #     t.references :tag
-      #     t.references :tagger, :polymorphic => true
-      #     t.references :taggable, :polymorphic => { :default => 'Photo' }
-      #   end
-      def column(name, type, options = {})
-        column = self[name] || ColumnDefinition.new(@base, name, type)
-        if options[:limit]
-          column.limit = options[:limit]
-        elsif native[type.to_sym].is_a?(Hash)
-          column.limit = native[type.to_sym][:limit]
-        end
-        column.precision = options[:precision]
-        column.scale = options[:scale]
-        column.default = options[:default]
-        column.null = options[:null]
-        @columns << column unless @columns.include? column
-        self
-      end
-
-      %w( string text integer float decimal datetime timestamp time date binary boolean ).each do |column_type|
-        class_eval <<-EOV
-          def #{column_type}(*args)                                               # def string(*args)
-            options = args.extract_options!                                       #   options = args.extract_options!
-            column_names = args                                                   #   column_names = args
-                                                                                  #
-            column_names.each { |name| column(name, '#{column_type}', options) }  #   column_names.each { |name| column(name, 'string', options) }
-          end                                                                     # end
-        EOV
-      end
-
-      # Appends <tt>:datetime</tt> columns <tt>:created_at</tt> and
-      # <tt>:updated_at</tt> to the table.
-      def timestamps(*args)
-        options = args.extract_options!
-        column(:created_at, :datetime, options)
-        column(:updated_at, :datetime, options)
-      end
-
-      def references(*args)
-        options = args.extract_options!
-        polymorphic = options.delete(:polymorphic)
-        args.each do |col|
-          column("#{col}_id", :integer, options)
-          column("#{col}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) unless polymorphic.nil?
-        end
-      end
-      alias :belongs_to :references
-
-      # Returns a String whose contents are the column definitions
-      # concatenated together. This string can then be prepended and appended to
-      # to generate the final SQL to create the table.
-      def to_sql
-        @columns.map(&:to_sql) * ', '
-      end
-
-      private
-        def native
-          @base.native_database_types
-        end
-    end
-
-    # Represents a SQL table in an abstract way for updating a table.
-    # Also see TableDefinition and SchemaStatements#create_table
-    #
-    # Available transformations are:
-    #
-    #   change_table :table do |t|
-    #     t.column
-    #     t.index
-    #     t.timestamps
-    #     t.change
-    #     t.change_default
-    #     t.rename
-    #     t.references
-    #     t.belongs_to
-    #     t.string
-    #     t.text
-    #     t.integer
-    #     t.float
-    #     t.decimal
-    #     t.datetime
-    #     t.timestamp
-    #     t.time
-    #     t.date
-    #     t.binary
-    #     t.boolean
-    #     t.remove
-    #     t.remove_references
-    #     t.remove_belongs_to
-    #     t.remove_index
-    #     t.remove_timestamps
-    #   end
-    #
-    class Table
-      def initialize(table_name, base)
-        @table_name = table_name
-        @base = base
-      end
-
-      # Adds a new column to the named table.
-      # See TableDefinition#column for details of the options you can use.
-      # ===== Example
-      # ====== Creating a simple column
-      #  t.column(:name, :string)
-      def column(column_name, type, options = {})
-        @base.add_column(@table_name, column_name, type, options)
-      end
-
-      # Adds a new index to the table. +column_name+ can be a single Symbol, or
-      # an Array of Symbols. See SchemaStatements#add_index
-      #
-      # ===== Examples
-      # ====== Creating a simple index
-      #  t.index(:name)
-      # ====== Creating a unique index
-      #  t.index([:branch_id, :party_id], :unique => true)
-      # ====== Creating a named index
-      #  t.index([:branch_id, :party_id], :unique => true, :name => 'by_branch_party')
-      def index(column_name, options = {})
-        @base.add_index(@table_name, column_name, options)
-      end
-
-      # Adds timestamps (created_at and updated_at) columns to the table. See SchemaStatements#add_timestamps
-      # ===== Example
-      #  t.timestamps
-      def timestamps
-        @base.add_timestamps(@table_name)
-      end
-
-      # Changes the column's definition according to the new options.
-      # See TableDefinition#column for details of the options you can use.
-      # ===== Examples
-      #  t.change(:name, :string, :limit => 80)
-      #  t.change(:description, :text)
-      def change(column_name, type, options = {})
-        @base.change_column(@table_name, column_name, type, options)
-      end
-
-      # Sets a new default value for a column. See SchemaStatements#change_column_default
-      # ===== Examples
-      #  t.change_default(:qualification, 'new')
-      #  t.change_default(:authorized, 1)
-      def change_default(column_name, default)
-        @base.change_column_default(@table_name, column_name, default)
-      end
-
-      # Removes the column(s) from the table definition.
-      # ===== Examples
-      #  t.remove(:qualification)
-      #  t.remove(:qualification, :experience)
-      def remove(*column_names)
-        @base.remove_column(@table_name, column_names)
-      end
-
-      # Removes the given index from the table.
-      #
-      # ===== Examples
-      # ====== Remove the suppliers_name_index in the suppliers table
-      #   t.remove_index :name
-      # ====== Remove the index named accounts_branch_id_index in the accounts table
-      #   t.remove_index :column => :branch_id
-      # ====== Remove the index named accounts_branch_id_party_id_index in the accounts table
-      #   t.remove_index :column => [:branch_id, :party_id]
-      # ====== Remove the index named by_branch_party in the accounts table
-      #   t.remove_index :name => :by_branch_party
-      def remove_index(options = {})
-        @base.remove_index(@table_name, options)
-      end
-
-      # Removes the timestamp columns (created_at and updated_at) from the table.
-      # ===== Example
-      #  t.remove_timestamps
-      def remove_timestamps
-        @base.remove_timestamps(@table_name)
-      end
-
-      # Renames a column.
-      # ===== Example
-      #  t.rename(:description, :name)
-      def rename(column_name, new_column_name)
-        @base.rename_column(@table_name, column_name, new_column_name)
-      end
-
-      # Adds a reference. Optionally adds a +type+ column.
-      # <tt>references</tt> and <tt>belongs_to</tt> are acceptable.
-      # ===== Examples
-      #  t.references(:goat)
-      #  t.references(:goat, :polymorphic => true)
-      #  t.belongs_to(:goat)
-      def references(*args)
-        options = args.extract_options!
-        polymorphic = options.delete(:polymorphic)
-        args.each do |col|
-          @base.add_column(@table_name, "#{col}_id", :integer, options)
-          @base.add_column(@table_name, "#{col}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) unless polymorphic.nil?
-        end
-      end
-      alias :belongs_to :references
-
-      # Removes a reference. Optionally removes a +type+ column.
-      # <tt>remove_references</tt> and <tt>remove_belongs_to</tt> are acceptable.
-      # ===== Examples
-      #  t.remove_references(:goat)
-      #  t.remove_references(:goat, :polymorphic => true)
-      #  t.remove_belongs_to(:goat)
-      def remove_references(*args)
-        options = args.extract_options!
-        polymorphic = options.delete(:polymorphic)
-        args.each do |col|
-          @base.remove_column(@table_name, "#{col}_id")
-          @base.remove_column(@table_name, "#{col}_type") unless polymorphic.nil?
-        end
-      end
-      alias :remove_belongs_to  :remove_references
-
-      # Adds a column or columns of a specified type
-      # ===== Examples
-      #  t.string(:goat)
-      #  t.string(:goat, :sheep)
-      %w( string text integer float decimal datetime timestamp time date binary boolean ).each do |column_type|
-        class_eval <<-EOV
-          def #{column_type}(*args)                                          # def string(*args)
-            options = args.extract_options!                                  #   options = args.extract_options!
-            column_names = args                                              #   column_names = args
-                                                                             #
-            column_names.each do |name|                                      #   column_names.each do |name|
-              column = ColumnDefinition.new(@base, name, '#{column_type}')   #     column = ColumnDefinition.new(@base, name, 'string')
-              if options[:limit]                                             #     if options[:limit]
-                column.limit = options[:limit]                               #       column.limit = options[:limit]
-              elsif native['#{column_type}'.to_sym].is_a?(Hash)              #     elsif native['string'.to_sym].is_a?(Hash)
-                column.limit = native['#{column_type}'.to_sym][:limit]       #       column.limit = native['string'.to_sym][:limit]
-              end                                                            #     end
-              column.precision = options[:precision]                         #     column.precision = options[:precision]
-              column.scale = options[:scale]                                 #     column.scale = options[:scale]
-              column.default = options[:default]                             #     column.default = options[:default]
-              column.null = options[:null]                                   #     column.null = options[:null]
-              @base.add_column(@table_name, name, column.sql_type, options)  #     @base.add_column(@table_name, name, column.sql_type, options)
-            end                                                              #   end
-          end                                                                # end
-        EOV
-      end
-
-      private
-        def native
-          @base.native_database_types
-        end
-    end
-
-  end
-end
-
@@ -1,434 +0,0 @@
-module ActiveRecord
-  module ConnectionAdapters # :nodoc:
-    module SchemaStatements
-      # Returns a Hash of mappings from the abstract data types to the native
-      # database types.  See TableDefinition#column for details on the recognized
-      # abstract data types.
-      def native_database_types
-        {}
-      end
-
-      # This is the maximum length a table alias can be
-      def table_alias_length
-        255
-      end
-
-      # Truncates a table alias according to the limits of the current adapter.
-      def table_alias_for(table_name)
-        table_name[0..table_alias_length-1].gsub(/\./, '_')
-      end
-
-      # def tables(name = nil) end
-
-      def table_exists?(table_name)
-        tables.include?(table_name.to_s)
-      end
-
-      # Returns an array of indexes for the given table.
-      # def indexes(table_name, name = nil) end
-
-      # Returns an array of Column objects for the table specified by +table_name+.
-      # See the concrete implementation for details on the expected parameter values.
-      def columns(table_name, name = nil) end
-
-      # Creates a new table with the name +table_name+. +table_name+ may either
-      # be a String or a Symbol.
-      #
-      # There are two ways to work with +create_table+.  You can use the block
-      # form or the regular form, like this:
-      #
-      # === Block form
-      #  # create_table() passes a TableDefinition object to the block.
-      #  # This form will not only create the table, but also columns for the
-      #  # table.
-      #  create_table(:suppliers) do |t|
-      #    t.column :name, :string, :limit => 60
-      #    # Other fields here
-      #  end
-      #
-      # === Regular form
-      #  # Creates a table called 'suppliers' with no columns.
-      #  create_table(:suppliers)
-      #  # Add a column to 'suppliers'.
-      #  add_column(:suppliers, :name, :string, {:limit => 60})
-      #
-      # The +options+ hash can include the following keys:
-      # [<tt>:id</tt>]
-      #   Whether to automatically add a primary key column. Defaults to true.
-      #   Join tables for +has_and_belongs_to_many+ should set <tt>:id => false</tt>.
-      # [<tt>:primary_key</tt>]
-      #   The name of the primary key, if one is to be added automatically.
-      #   Defaults to +id+.
-      # [<tt>:options</tt>]
-      #   Any extra options you want appended to the table definition.
-      # [<tt>:temporary</tt>]
-      #   Make a temporary table.
-      # [<tt>:force</tt>]
-      #   Set to true to drop the table before creating it.
-      #   Defaults to false.
-      #
-      # ===== Examples
-      # ====== Add a backend specific option to the generated SQL (MySQL)
-      #  create_table(:suppliers, :options => 'ENGINE=InnoDB DEFAULT CHARSET=utf8')
-      # generates:
-      #  CREATE TABLE suppliers (
-      #    id int(11) DEFAULT NULL auto_increment PRIMARY KEY
-      #  ) ENGINE=InnoDB DEFAULT CHARSET=utf8
-      #
-      # ====== Rename the primary key column
-      #  create_table(:objects, :primary_key => 'guid') do |t|
-      #    t.column :name, :string, :limit => 80
-      #  end
-      # generates:
-      #  CREATE TABLE objects (
-      #    guid int(11) DEFAULT NULL auto_increment PRIMARY KEY,
-      #    name varchar(80)
-      #  )
-      #
-      # ====== Do not add a primary key column
-      #  create_table(:categories_suppliers, :id => false) do |t|
-      #    t.column :category_id, :integer
-      #    t.column :supplier_id, :integer
-      #  end
-      # generates:
-      #  CREATE TABLE categories_suppliers (
-      #    category_id int,
-      #    supplier_id int
-      #  )
-      #
-      # See also TableDefinition#column for details on how to create columns.
-      def create_table(table_name, options = {})
-        table_definition = TableDefinition.new(self)
-        table_definition.primary_key(options[:primary_key] || Base.get_primary_key(table_name.to_s.singularize)) unless options[:id] == false
-
-        yield table_definition
-
-        if options[:force] && table_exists?(table_name)
-          drop_table(table_name, options)
-        end
-
-        create_sql = "CREATE#{' TEMPORARY' if options[:temporary]} TABLE "
-        create_sql << "#{quote_table_name(table_name)} ("
-        create_sql << table_definition.to_sql
-        create_sql << ") #{options[:options]}"
-        execute create_sql
-      end
-
-      # A block for changing columns in +table+.
-      #
-      # === Example
-      #  # change_table() yields a Table instance
-      #  change_table(:suppliers) do |t|
-      #    t.column :name, :string, :limit => 60
-      #    # Other column alterations here
-      #  end
-      #
-      # ===== Examples
-      # ====== Add a column
-      #  change_table(:suppliers) do |t|
-      #    t.column :name, :string, :limit => 60
-      #  end
-      #
-      # ====== Add 2 integer columns
-      #  change_table(:suppliers) do |t|
-      #    t.integer :width, :height, :null => false, :default => 0
-      #  end
-      #
-      # ====== Add created_at/updated_at columns
-      #  change_table(:suppliers) do |t|
-      #    t.timestamps
-      #  end
-      #
-      # ====== Add a foreign key column
-      #  change_table(:suppliers) do |t|
-      #    t.references :company
-      #  end
-      #
-      # Creates a <tt>company_id(integer)</tt> column
-      #
-      # ====== Add a polymorphic foreign key column
-      #  change_table(:suppliers) do |t|
-      #    t.belongs_to :company, :polymorphic => true
-      #  end
-      #
-      # Creates <tt>company_type(varchar)</tt> and <tt>company_id(integer)</tt> columns
-      #
-      # ====== Remove a column
-      #  change_table(:suppliers) do |t|
-      #    t.remove :company
-      #  end
-      #
-      # ====== Remove several columns
-      #  change_table(:suppliers) do |t|
-      #    t.remove :company_id
-      #    t.remove :width, :height
-      #  end
-      #
-      # ====== Remove an index
-      #  change_table(:suppliers) do |t|
-      #    t.remove_index :company_id
-      #  end
-      #
-      # See also Table for details on
-      # all of the various column transformation
-      def change_table(table_name)
-        yield Table.new(table_name, self)
-      end
-
-      # Renames a table.
-      # ===== Example
-      #  rename_table('octopuses', 'octopi')
-      def rename_table(table_name, new_name)
-        raise NotImplementedError, "rename_table is not implemented"
-      end
-
-      # Drops a table from the database.
-      def drop_table(table_name, options = {})
-        execute "DROP TABLE #{quote_table_name(table_name)}"
-      end
-
-      # Adds a new column to the named table.
-      # See TableDefinition#column for details of the options you can use.
-      def add_column(table_name, column_name, type, options = {})
-        add_column_sql = "ALTER TABLE #{quote_table_name(table_name)} ADD #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
-        add_column_options!(add_column_sql, options)
-        execute(add_column_sql)
-      end
-
-      # Removes the column(s) from the table definition.
-      # ===== Examples
-      #  remove_column(:suppliers, :qualification)
-      #  remove_columns(:suppliers, :qualification, :experience)
-      def remove_column(table_name, *column_names)
-        column_names.flatten.each do |column_name|
-          execute "ALTER TABLE #{quote_table_name(table_name)} DROP #{quote_column_name(column_name)}"
-        end
-      end
-      alias :remove_columns :remove_column
-
-      # Changes the column's definition according to the new options.
-      # See TableDefinition#column for details of the options you can use.
-      # ===== Examples
-      #  change_column(:suppliers, :name, :string, :limit => 80)
-      #  change_column(:accounts, :description, :text)
-      def change_column(table_name, column_name, type, options = {})
-        raise NotImplementedError, "change_column is not implemented"
-      end
-
-      # Sets a new default value for a column.  If you want to set the default
-      # value to +NULL+, you are out of luck.  You need to
-      # DatabaseStatements#execute the appropriate SQL statement yourself.
-      # ===== Examples
-      #  change_column_default(:suppliers, :qualification, 'new')
-      #  change_column_default(:accounts, :authorized, 1)
-      def change_column_default(table_name, column_name, default)
-        raise NotImplementedError, "change_column_default is not implemented"
-      end
-
-      # Renames a column.
-      # ===== Example
-      #  rename_column(:suppliers, :description, :name)
-      def rename_column(table_name, column_name, new_column_name)
-        raise NotImplementedError, "rename_column is not implemented"
-      end
-
-      # Adds a new index to the table.  +column_name+ can be a single Symbol, or
-      # an Array of Symbols.
-      #
-      # The index will be named after the table and the first column name,
-      # unless you pass <tt>:name</tt> as an option.
-      #
-      # When creating an index on multiple columns, the first column is used as a name
-      # for the index. For example, when you specify an index on two columns
-      # [<tt>:first</tt>, <tt>:last</tt>], the DBMS creates an index for both columns as well as an
-      # index for the first column <tt>:first</tt>. Using just the first name for this index
-      # makes sense, because you will never have to create a singular index with this
-      # name.
-      #
-      # ===== Examples
-      # ====== Creating a simple index
-      #  add_index(:suppliers, :name)
-      # generates
-      #  CREATE INDEX suppliers_name_index ON suppliers(name)
-      # ====== Creating a unique index
-      #  add_index(:accounts, [:branch_id, :party_id], :unique => true)
-      # generates
-      #  CREATE UNIQUE INDEX accounts_branch_id_party_id_index ON accounts(branch_id, party_id)
-      # ====== Creating a named index
-      #  add_index(:accounts, [:branch_id, :party_id], :unique => true, :name => 'by_branch_party')
-      # generates
-      #  CREATE UNIQUE INDEX by_branch_party ON accounts(branch_id, party_id)
-      def add_index(table_name, column_name, options = {})
-        column_names = Array(column_name)
-        index_name   = index_name(table_name, :column => column_names)
-
-        if Hash === options # legacy support, since this param was a string
-          index_type = options[:unique] ? "UNIQUE" : ""
-          index_name = options[:name] || index_name
-        else
-          index_type = options
-        end
-        quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ")
-        execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} (#{quoted_column_names})"
-      end
-
-      # Remove the given index from the table.
-      #
-      # Remove the suppliers_name_index in the suppliers table.
-      #   remove_index :suppliers, :name
-      # Remove the index named accounts_branch_id_index in the accounts table.
-      #   remove_index :accounts, :column => :branch_id
-      # Remove the index named accounts_branch_id_party_id_index in the accounts table.
-      #   remove_index :accounts, :column => [:branch_id, :party_id]
-      # Remove the index named by_branch_party in the accounts table.
-      #   remove_index :accounts, :name => :by_branch_party
-      def remove_index(table_name, options = {})
-        execute "DROP INDEX #{quote_column_name(index_name(table_name, options))} ON #{table_name}"
-      end
-
-      def index_name(table_name, options) #:nodoc:
-        if Hash === options # legacy support
-          if options[:column]
-            "index_#{table_name}_on_#{Array(options[:column]) * '_and_'}"
-          elsif options[:name]
-            options[:name]
-          else
-            raise ArgumentError, "You must specify the index name"
-          end
-        else
-          index_name(table_name, :column => options)
-        end
-      end
-
-      # Returns a string of <tt>CREATE TABLE</tt> SQL statement(s) for recreating the
-      # entire structure of the database.
-      def structure_dump
-      end
-
-      def dump_schema_information #:nodoc:
-        sm_table = ActiveRecord::Migrator.schema_migrations_table_name
-        migrated = select_values("SELECT version FROM #{sm_table}")
-        migrated.map { |v| "INSERT INTO #{sm_table} (version) VALUES ('#{v}');" }.join("\n\n")
-      end
-
-      # Should not be called normally, but this operation is non-destructive.
-      # The migrations module handles this automatically.
-      def initialize_schema_migrations_table
-        sm_table = ActiveRecord::Migrator.schema_migrations_table_name
-
-        unless tables.detect { |t| t == sm_table }
-          create_table(sm_table, :id => false) do |schema_migrations_table|
-            schema_migrations_table.column :version, :string, :null => false
-          end
-          add_index sm_table, :version, :unique => true,
-            :name => "#{Base.table_name_prefix}unique_schema_migrations#{Base.table_name_suffix}"
-
-          # Backwards-compatibility: if we find schema_info, assume we've
-          # migrated up to that point:
-          si_table = Base.table_name_prefix + 'schema_info' + Base.table_name_suffix
-
-          if tables.detect { |t| t == si_table }
-
-            old_version = select_value("SELECT version FROM #{quote_table_name(si_table)}").to_i
-            assume_migrated_upto_version(old_version)
-            drop_table(si_table)
-          end
-        end
-      end
-
-      def assume_migrated_upto_version(version)
-        version = version.to_i
-        sm_table = quote_table_name(ActiveRecord::Migrator.schema_migrations_table_name)
-
-        migrated = select_values("SELECT version FROM #{sm_table}").map(&:to_i)
-        versions = Dir['db/migrate/[0-9]*_*.rb'].map do |filename|
-          filename.split('/').last.split('_').first.to_i
-        end
-
-        unless migrated.include?(version)
-          execute "INSERT INTO #{sm_table} (version) VALUES ('#{version}')"
-        end
-
-        inserted = Set.new
-        (versions - migrated).each do |v|
-          if inserted.include?(v)
-            raise "Duplicate migration #{v}. Please renumber your migrations to resolve the conflict."
-          elsif v < version
-            execute "INSERT INTO #{sm_table} (version) VALUES ('#{v}')"
-            inserted << v
-          end
-        end
-      end
-
-      def type_to_sql(type, limit = nil, precision = nil, scale = nil) #:nodoc:
-        if native = native_database_types[type]
-          column_type_sql = (native.is_a?(Hash) ? native[:name] : native).dup
-
-          if type == :decimal # ignore limit, use precision and scale
-            scale ||= native[:scale]
-
-            if precision ||= native[:precision]
-              if scale
-                column_type_sql << "(#{precision},#{scale})"
-              else
-                column_type_sql << "(#{precision})"
-              end
-            elsif scale
-              raise ArgumentError, "Error adding decimal column: precision cannot be empty if scale if specified"
-            end
-
-          elsif (type != :primary_key) && (limit ||= native.is_a?(Hash) && native[:limit])
-            column_type_sql << "(#{limit})"
-          end
-
-          column_type_sql
-        else
-          type
-        end
-      end
-
-      def add_column_options!(sql, options) #:nodoc:
-        sql << " DEFAULT #{quote(options[:default], options[:column])}" if options_include_default?(options)
-        # must explicitly check for :null to allow change_column to work on migrations
-        if options[:null] == false
-          sql << " NOT NULL"
-        end
-      end
-
-      # SELECT DISTINCT clause for a given set of columns and a given ORDER BY clause.
-      # Both PostgreSQL and Oracle overrides this for custom DISTINCT syntax.
-      #
-      #   distinct("posts.id", "posts.created_at desc")
-      def distinct(columns, order_by)
-        "DISTINCT #{columns}"
-      end
-
-      # ORDER BY clause for the passed order option.
-      # PostgreSQL overrides this due to its stricter standards compliance.
-      def add_order_by_for_association_limiting!(sql, options)
-        sql << " ORDER BY #{options[:order]}"
-      end
-
-      # Adds timestamps (created_at and updated_at) columns to the named table.
-      # ===== Examples
-      #  add_timestamps(:suppliers)
-      def add_timestamps(table_name)
-        add_column table_name, :created_at, :datetime
-        add_column table_name, :updated_at, :datetime
-      end
-
-      # Removes the timestamp columns (created_at and updated_at) from the table definition.
-      # ===== Examples
-      #  remove_timestamps(:suppliers)
-      def remove_timestamps(table_name)
-        remove_column table_name, :updated_at
-        remove_column table_name, :created_at
-      end
-
-      protected
-        def options_include_default?(options)
-          options.include?(:default) && !(options[:null] == false && options[:default].nil?)
-        end
-    end
-  end
-end
@@ -1,241 +0,0 @@
-require 'benchmark'
-require 'date'
-require 'bigdecimal'
-require 'bigdecimal/util'
-
-# TODO: Autoload these files
-require 'active_record/connection_adapters/abstract/schema_definitions'
-require 'active_record/connection_adapters/abstract/schema_statements'
-require 'active_record/connection_adapters/abstract/database_statements'
-require 'active_record/connection_adapters/abstract/quoting'
-require 'active_record/connection_adapters/abstract/connection_pool'
-require 'active_record/connection_adapters/abstract/connection_specification'
-require 'active_record/connection_adapters/abstract/query_cache'
-
-module ActiveRecord
-  module ConnectionAdapters # :nodoc:
-    # ActiveRecord supports multiple database systems. AbstractAdapter and
-    # related classes form the abstraction layer which makes this possible.
-    # An AbstractAdapter represents a connection to a database, and provides an
-    # abstract interface for database-specific functionality such as establishing
-    # a connection, escaping values, building the right SQL fragments for ':offset'
-    # and ':limit' options, etc.
-    #
-    # All the concrete database adapters follow the interface laid down in this class.
-    # ActiveRecord::Base.connection returns an AbstractAdapter object, which
-    # you can use.
-    #
-    # Most of the methods in the adapter are useful during migrations. Most
-    # notably, the instance methods provided by SchemaStatement are very useful.
-    class AbstractAdapter
-      include Quoting, DatabaseStatements, SchemaStatements
-      include QueryCache
-      include ActiveSupport::Callbacks
-      define_callbacks :checkout, :checkin
-
-      @@row_even = true
-
-      def initialize(connection, logger = nil) #:nodoc:
-        @connection, @logger = connection, logger
-        @runtime = 0
-        @last_verification = 0
-        @query_cache_enabled = false
-      end
-
-      # Returns the human-readable name of the adapter.  Use mixed case - one
-      # can always use downcase if needed.
-      def adapter_name
-        'Abstract'
-      end
-
-      # Does this adapter support migrations?  Backend specific, as the
-      # abstract adapter always returns +false+.
-      def supports_migrations?
-        false
-      end
-
-      # Can this adapter determine the primary key for tables not attached
-      # to an ActiveRecord class, such as join tables?  Backend specific, as
-      # the abstract adapter always returns +false+.
-      def supports_primary_key?
-        false
-      end
-
-      # Does this adapter support using DISTINCT within COUNT?  This is +true+
-      # for all adapters except sqlite.
-      def supports_count_distinct?
-        true
-      end
-
-      # Does this adapter support DDL rollbacks in transactions?  That is, would
-      # CREATE TABLE or ALTER TABLE get rolled back by a transaction?  PostgreSQL,
-      # SQL Server, and others support this.  MySQL and others do not.
-      def supports_ddl_transactions?
-        false
-      end
-      
-      # Does this adapter support savepoints? PostgreSQL and MySQL do, SQLite
-      # does not.
-      def supports_savepoints?
-        false
-      end
-
-      # Should primary key values be selected from their corresponding
-      # sequence before the insert statement?  If true, next_sequence_value
-      # is called before each insert to set the record's primary key.
-      # This is false for all adapters but Firebird.
-      def prefetch_primary_key?(table_name = nil)
-        false
-      end
-
-      def reset_runtime #:nodoc:
-        rt, @runtime = @runtime, 0
-        rt
-      end
-
-      # QUOTING ==================================================
-
-      # Override to return the quoted table name. Defaults to column quoting.
-      def quote_table_name(name)
-        quote_column_name(name)
-      end
-
-      # REFERENTIAL INTEGRITY ====================================
-
-      # Override to turn off referential integrity while executing <tt>&block</tt>.
-      def disable_referential_integrity(&block)
-        yield
-      end
-
-      # CONNECTION MANAGEMENT ====================================
-
-      # Checks whether the connection to the database is still active. This includes
-      # checking whether the database is actually capable of responding, i.e. whether
-      # the connection isn't stale.
-      def active?
-        @active != false
-      end
-
-      # Disconnects from the database if already connected, and establishes a
-      # new connection with the database.
-      def reconnect!
-        @active = true
-      end
-
-      # Disconnects from the database if already connected. Otherwise, this
-      # method does nothing.
-      def disconnect!
-        @active = false
-      end
-
-      # Reset the state of this connection, directing the DBMS to clear
-      # transactions and other connection-related server-side state. Usually a
-      # database-dependent operation.
-      #
-      # The default implementation does nothing; the implementation should be
-      # overridden by concrete adapters.
-      def reset!
-        # this should be overridden by concrete adapters
-      end
-
-      # Returns true if its safe to reload the connection between requests for development mode.
-      def requires_reloading?
-        true
-      end
-
-      # Checks whether the connection to the database is still active (i.e. not stale).
-      # This is done under the hood by calling <tt>active?</tt>. If the connection
-      # is no longer active, then this method will reconnect to the database.
-      def verify!(*ignored)
-        reconnect! unless active?
-      end
-
-      # Provides access to the underlying database driver for this adapter. For
-      # example, this method returns a Mysql object in case of MysqlAdapter,
-      # and a PGconn object in case of PostgreSQLAdapter.
-      #
-      # This is useful for when you need to call a proprietary method such as
-      # PostgreSQL's lo_* methods.
-      def raw_connection
-        @connection
-      end
-
-      def open_transactions
-        @open_transactions ||= 0
-      end
-
-      def increment_open_transactions
-        @open_transactions ||= 0
-        @open_transactions += 1
-      end
-
-      def decrement_open_transactions
-        @open_transactions -= 1
-      end
-
-      def transaction_joinable=(joinable)
-        @transaction_joinable = joinable
-      end
-
-      def create_savepoint
-      end
-
-      def rollback_to_savepoint
-      end
-
-      def release_savepoint
-      end
-
-      def current_savepoint_name
-        "active_record_#{open_transactions}"
-      end
-
-      def log_info(sql, name, ms)
-        if @logger && @logger.debug?
-          name = '%s (%.1fms)' % [name || 'SQL', ms]
-          @logger.debug(format_log_entry(name, sql.squeeze(' ')))
-        end
-      end
-
-      protected
-        def log(sql, name)
-          if block_given?
-            result = nil
-            ms = Benchmark.ms { result = yield }
-            @runtime += ms
-            log_info(sql, name, ms)
-            result
-          else
-            log_info(sql, name, 0)
-            nil
-          end
-        rescue Exception => e
-          # Log message and raise exception.
-          # Set last_verification to 0, so that connection gets verified
-          # upon reentering the request loop
-          @last_verification = 0
-          message = "#{e.class.name}: #{e.message}: #{sql}"
-          log_info(message, name, 0)
-          raise ActiveRecord::StatementInvalid, message
-        end
-
-        def format_log_entry(message, dump = nil)
-          if ActiveRecord::Base.colorize_logging
-            if @@row_even
-              @@row_even = false
-              message_color, dump_color = "4;36;1", "0;1"
-            else
-              @@row_even = true
-              message_color, dump_color = "4;35;1", "0"
-            end
-
-            log_entry = "  \e[#{message_color}m#{message}\e[0m   "
-            log_entry << "\e[#{dump_color}m%#{String === dump ? 's' : 'p'}\e[0m" % dump if dump
-            log_entry
-          else
-            "%s  %s" % [message, dump]
-          end
-        end
-    end
-  end
-end
@@ -1,630 +0,0 @@
-require 'active_record/connection_adapters/abstract_adapter'
-require 'set'
-
-module MysqlCompat #:nodoc:
-  # add all_hashes method to standard mysql-c bindings or pure ruby version
-  def self.define_all_hashes_method!
-    raise 'Mysql not loaded' unless defined?(::Mysql)
-
-    target = defined?(Mysql::Result) ? Mysql::Result : MysqlRes
-    return if target.instance_methods.include?('all_hashes') ||
-              target.instance_methods.include?(:all_hashes)
-
-    # Ruby driver has a version string and returns null values in each_hash
-    # C driver >= 2.7 returns null values in each_hash
-    if Mysql.const_defined?(:VERSION) && (Mysql::VERSION.is_a?(String) || Mysql::VERSION >= 20700)
-      target.class_eval <<-'end_eval'
-      def all_hashes                     # def all_hashes
-        rows = []                        #   rows = []
-        each_hash { |row| rows << row }  #   each_hash { |row| rows << row }
-        rows                             #   rows
-      end                                # end
-      end_eval
-
-    # adapters before 2.7 don't have a version constant
-    # and don't return null values in each_hash
-    else
-      target.class_eval <<-'end_eval'
-      def all_hashes                                            # def all_hashes
-        rows = []                                               #   rows = []
-        all_fields = fetch_fields.inject({}) { |fields, f|      #   all_fields = fetch_fields.inject({}) { |fields, f|
-          fields[f.name] = nil; fields                          #     fields[f.name] = nil; fields
-        }                                                       #   }
-        each_hash { |row| rows << all_fields.dup.update(row) }  #   each_hash { |row| rows << all_fields.dup.update(row) }
-        rows                                                    #   rows
-      end                                                       # end
-      end_eval
-    end
-
-    unless target.instance_methods.include?('all_hashes') ||
-           target.instance_methods.include?(:all_hashes)
-      raise "Failed to defined #{target.name}#all_hashes method. Mysql::VERSION = #{Mysql::VERSION.inspect}"
-    end
-  end
-end
-
-module ActiveRecord
-  class Base
-    # Establishes a connection to the database that's used by all Active Record objects.
-    def self.mysql_connection(config) # :nodoc:
-      config = config.symbolize_keys
-      host     = config[:host]
-      port     = config[:port]
-      socket   = config[:socket]
-      username = config[:username] ? config[:username].to_s : 'root'
-      password = config[:password].to_s
-      database = config[:database]
-
-      # Require the MySQL driver and define Mysql::Result.all_hashes
-      unless defined? Mysql
-        begin
-          require_library_or_gem('mysql')
-        rescue LoadError
-          $stderr.puts '!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.'
-          raise
-        end
-      end
-
-      MysqlCompat.define_all_hashes_method!
-
-      mysql = Mysql.init
-      mysql.ssl_set(config[:sslkey], config[:sslcert], config[:sslca], config[:sslcapath], config[:sslcipher]) if config[:sslca] || config[:sslkey]
-
-      default_flags = Mysql.const_defined?(:CLIENT_MULTI_RESULTS) ? Mysql::CLIENT_MULTI_RESULTS : 0
-      options = [host, username, password, database, port, socket, default_flags]
-      ConnectionAdapters::MysqlAdapter.new(mysql, logger, options, config)
-    end
-  end
-
-  module ConnectionAdapters
-    class MysqlColumn < Column #:nodoc:
-      def extract_default(default)
-        if sql_type =~ /blob/i || type == :text
-          if default.blank?
-            return null ? nil : ''
-          else
-            raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}"
-          end
-        elsif missing_default_forged_as_empty_string?(default)
-          nil
-        else
-          super
-        end
-      end
-
-      def has_default?
-        return false if sql_type =~ /blob/i || type == :text #mysql forbids defaults on blob and text columns
-        super
-      end
-
-      private
-        def simplified_type(field_type)
-          return :boolean if MysqlAdapter.emulate_booleans && field_type.downcase.index("tinyint(1)")
-          return :string  if field_type =~ /enum/i
-          super
-        end
-
-        def extract_limit(sql_type)
-          case sql_type
-          when /blob|text/i
-            case sql_type
-            when /tiny/i
-              255
-            when /medium/i
-              16777215
-            when /long/i
-              2147483647 # mysql only allows 2^31-1, not 2^32-1, somewhat inconsistently with the tiny/medium/normal cases
-            else
-              super # we could return 65535 here, but we leave it undecorated by default
-            end
-          when /^bigint/i;    8
-          when /^int/i;       4
-          when /^mediumint/i; 3
-          when /^smallint/i;  2
-          when /^tinyint/i;   1
-          else
-            super
-          end
-        end
-
-        # MySQL misreports NOT NULL column default when none is given.
-        # We can't detect this for columns which may have a legitimate ''
-        # default (string) but we can for others (integer, datetime, boolean,
-        # and the rest).
-        #
-        # Test whether the column has default '', is not null, and is not
-        # a type allowing default ''.
-        def missing_default_forged_as_empty_string?(default)
-          type != :string && !null && default == ''
-        end
-    end
-
-    # The MySQL adapter will work with both Ruby/MySQL, which is a Ruby-based MySQL adapter that comes bundled with Active Record, and with
-    # the faster C-based MySQL/Ruby adapter (available both as a gem and from http://www.tmtm.org/en/mysql/ruby/).
-    #
-    # Options:
-    #
-    # * <tt>:host</tt> - Defaults to "localhost".
-    # * <tt>:port</tt> - Defaults to 3306.
-    # * <tt>:socket</tt> - Defaults to "/tmp/mysql.sock".
-    # * <tt>:username</tt> - Defaults to "root"
-    # * <tt>:password</tt> - Defaults to nothing.
-    # * <tt>:database</tt> - The name of the database. No default, must be provided.
-    # * <tt>:encoding</tt> - (Optional) Sets the client encoding by executing "SET NAMES <encoding>" after connection.
-    # * <tt>:reconnect</tt> - Defaults to false (See MySQL documentation: http://dev.mysql.com/doc/refman/5.0/en/auto-reconnect.html).
-    # * <tt>:sslca</tt> - Necessary to use MySQL with an SSL connection.
-    # * <tt>:sslkey</tt> - Necessary to use MySQL with an SSL connection.
-    # * <tt>:sslcert</tt> - Necessary to use MySQL with an SSL connection.
-    # * <tt>:sslcapath</tt> - Necessary to use MySQL with an SSL connection.
-    # * <tt>:sslcipher</tt> - Necessary to use MySQL with an SSL connection.
-    #
-    class MysqlAdapter < AbstractAdapter
-
-      ##
-      # :singleton-method:
-      # By default, the MysqlAdapter will consider all columns of type <tt>tinyint(1)</tt>
-      # as boolean. If you wish to disable this emulation (which was the default
-      # behavior in versions 0.13.1 and earlier) you can add the following line
-      # to your environment.rb file:
-      #
-      #   ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans = false
-      cattr_accessor :emulate_booleans
-      self.emulate_booleans = true
-
-      ADAPTER_NAME = 'MySQL'.freeze
-
-      LOST_CONNECTION_ERROR_MESSAGES = [
-        "Server shutdown in progress",
-        "Broken pipe",
-        "Lost connection to MySQL server during query",
-        "MySQL server has gone away" ]
-
-      QUOTED_TRUE, QUOTED_FALSE = '1'.freeze, '0'.freeze
-
-      NATIVE_DATABASE_TYPES = {
-        :primary_key => "int(11) DEFAULT NULL auto_increment PRIMARY KEY".freeze,
-        :string      => { :name => "varchar", :limit => 255 },
-        :text        => { :name => "text" },
-        :integer     => { :name => "int", :limit => 4 },
-        :float       => { :name => "float" },
-        :decimal     => { :name => "decimal" },
-        :datetime    => { :name => "datetime" },
-        :timestamp   => { :name => "datetime" },
-        :time        => { :name => "time" },
-        :date        => { :name => "date" },
-        :binary      => { :name => "blob" },
-        :boolean     => { :name => "tinyint", :limit => 1 }
-      }
-
-      def initialize(connection, logger, connection_options, config)
-        super(connection, logger)
-        @connection_options, @config = connection_options, config
-        @quoted_column_names, @quoted_table_names = {}, {}
-        connect
-      end
-
-      def adapter_name #:nodoc:
-        ADAPTER_NAME
-      end
-
-      def supports_migrations? #:nodoc:
-        true
-      end
-      
-      def supports_primary_key? #:nodoc:
-        true
-      end
-
-      def supports_savepoints? #:nodoc:
-        true
-      end
-
-      def native_database_types #:nodoc:
-        NATIVE_DATABASE_TYPES
-      end
-
-
-      # QUOTING ==================================================
-
-      def quote(value, column = nil)
-        if value.kind_of?(String) && column && column.type == :binary && column.class.respond_to?(:string_to_binary)
-          s = column.class.string_to_binary(value).unpack("H*")[0]
-          "x'#{s}'"
-        elsif value.kind_of?(BigDecimal)
-          value.to_s("F")
-        else
-          super
-        end
-      end
-
-      def quote_column_name(name) #:nodoc:
-        @quoted_column_names[name] ||= "`#{name}`"
-      end
-
-      def quote_table_name(name) #:nodoc:
-        @quoted_table_names[name] ||= quote_column_name(name).gsub('.', '`.`')
-      end
-
-      def quote_string(string) #:nodoc:
-        @connection.quote(string)
-      end
-
-      def quoted_true
-        QUOTED_TRUE
-      end
-
-      def quoted_false
-        QUOTED_FALSE
-      end
-
-      # REFERENTIAL INTEGRITY ====================================
-
-      def disable_referential_integrity(&block) #:nodoc:
-        old = select_value("SELECT @@FOREIGN_KEY_CHECKS")
-
-        begin
-          update("SET FOREIGN_KEY_CHECKS = 0")
-          yield
-        ensure
-          update("SET FOREIGN_KEY_CHECKS = #{old}")
-        end
-      end
-
-      # CONNECTION MANAGEMENT ====================================
-
-      def active?
-        if @connection.respond_to?(:stat)
-          @connection.stat
-        else
-          @connection.query 'select 1'
-        end
-
-        # mysql-ruby doesn't raise an exception when stat fails.
-        if @connection.respond_to?(:errno)
-          @connection.errno.zero?
-        else
-          true
-        end
-      rescue Mysql::Error
-        false
-      end
-
-      def reconnect!
-        disconnect!
-        connect
-      end
-
-      def disconnect!
-        @connection.close rescue nil
-      end
-
-      def reset!
-        if @connection.respond_to?(:change_user)
-          # See http://bugs.mysql.com/bug.php?id=33540 -- the workaround way to
-          # reset the connection is to change the user to the same user.
-          @connection.change_user(@config[:username], @config[:password], @config[:database])
-          configure_connection
-        end
-      end
-
-      # DATABASE STATEMENTS ======================================
-
-      def select_rows(sql, name = nil)
-        @connection.query_with_result = true
-        result = execute(sql, name)
-        rows = []
-        result.each { |row| rows << row }
-        result.free
-        rows
-      end
-
-      # Executes a SQL query and returns a MySQL::Result object. Note that you have to free the Result object after you're done using it.
-      def execute(sql, name = nil) #:nodoc:
-        log(sql, name) { @connection.query(sql) }
-      rescue ActiveRecord::StatementInvalid => exception
-        if exception.message.split(":").first =~ /Packets out of order/
-          raise ActiveRecord::StatementInvalid, "'Packets out of order' error was received from the database. Please update your mysql bindings (gem install mysql) and read http://dev.mysql.com/doc/mysql/en/password-hashing.html for more information.  If you're on Windows, use the Instant Rails installer to get the updated mysql bindings."
-        else
-          raise
-        end
-      end
-
-      def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
-        super sql, name
-        id_value || @connection.insert_id
-      end
-
-      def update_sql(sql, name = nil) #:nodoc:
-        super
-        @connection.affected_rows
-      end
-
-      def begin_db_transaction #:nodoc:
-        execute "BEGIN"
-      rescue Exception
-        # Transactions aren't supported
-      end
-
-      def commit_db_transaction #:nodoc:
-        execute "COMMIT"
-      rescue Exception
-        # Transactions aren't supported
-      end
-
-      def rollback_db_transaction #:nodoc:
-        execute "ROLLBACK"
-      rescue Exception
-        # Transactions aren't supported
-      end
-
-      def create_savepoint
-        execute("SAVEPOINT #{current_savepoint_name}")
-      end
-
-      def rollback_to_savepoint
-        execute("ROLLBACK TO SAVEPOINT #{current_savepoint_name}")
-      end
-
-      def release_savepoint
-        execute("RELEASE SAVEPOINT #{current_savepoint_name}")
-      end
-
-      def add_limit_offset!(sql, options) #:nodoc:
-        if limit = options[:limit]
-          limit = sanitize_limit(limit)
-          unless offset = options[:offset]
-            sql << " LIMIT #{limit}"
-          else
-            sql << " LIMIT #{offset.to_i}, #{limit}"
-          end
-        end
-      end
-
-
-      # SCHEMA STATEMENTS ========================================
-
-      def structure_dump #:nodoc:
-        if supports_views?
-          sql = "SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'"
-        else
-          sql = "SHOW TABLES"
-        end
-
-        select_all(sql).inject("") do |structure, table|
-          table.delete('Table_type')
-          structure += select_one("SHOW CREATE TABLE #{quote_table_name(table.to_a.first.last)}")["Create Table"] + ";\n\n"
-        end
-      end
-
-      def recreate_database(name, options = {}) #:nodoc:
-        drop_database(name)
-        create_database(name, options)
-      end
-
-      # Create a new MySQL database with optional <tt>:charset</tt> and <tt>:collation</tt>.
-      # Charset defaults to utf8.
-      #
-      # Example:
-      #   create_database 'charset_test', :charset => 'latin1', :collation => 'latin1_bin'
-      #   create_database 'matt_development'
-      #   create_database 'matt_development', :charset => :big5
-      def create_database(name, options = {})
-        if options[:collation]
-          execute "CREATE DATABASE `#{name}` DEFAULT CHARACTER SET `#{options[:charset] || 'utf8'}` COLLATE `#{options[:collation]}`"
-        else
-          execute "CREATE DATABASE `#{name}` DEFAULT CHARACTER SET `#{options[:charset] || 'utf8'}`"
-        end
-      end
-
-      def drop_database(name) #:nodoc:
-        execute "DROP DATABASE IF EXISTS `#{name}`"
-      end
-
-      def current_database
-        select_value 'SELECT DATABASE() as db'
-      end
-
-      # Returns the database character set.
-      def charset
-        show_variable 'character_set_database'
-      end
-
-      # Returns the database collation strategy.
-      def collation
-        show_variable 'collation_database'
-      end
-
-      def tables(name = nil) #:nodoc:
-        tables = []
-        result = execute("SHOW TABLES", name)
-        result.each { |field| tables << field[0] }
-        result.free
-        tables
-      end
-
-      def drop_table(table_name, options = {})
-        super(table_name, options)
-      end
-
-      def indexes(table_name, name = nil)#:nodoc:
-        indexes = []
-        current_index = nil
-        result = execute("SHOW KEYS FROM #{quote_table_name(table_name)}", name)
-        result.each do |row|
-          if current_index != row[2]
-            next if row[2] == "PRIMARY" # skip the primary key
-            current_index = row[2]
-            indexes << IndexDefinition.new(row[0], row[2], row[1] == "0", [])
-          end
-
-          indexes.last.columns << row[4]
-        end
-        result.free
-        indexes
-      end
-
-      def columns(table_name, name = nil)#:nodoc:
-        sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}"
-        columns = []
-        result = execute(sql, name)
-        result.each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") }
-        result.free
-        columns
-      end
-
-      def create_table(table_name, options = {}) #:nodoc:
-        super(table_name, options.reverse_merge(:options => "ENGINE=InnoDB"))
-      end
-
-      def rename_table(table_name, new_name)
-        execute "RENAME TABLE #{quote_table_name(table_name)} TO #{quote_table_name(new_name)}"
-      end
-
-      def change_column_default(table_name, column_name, default) #:nodoc:
-        column = column_for(table_name, column_name)
-        change_column table_name, column_name, column.sql_type, :default => default
-      end
-
-      def change_column_null(table_name, column_name, null, default = nil)
-        column = column_for(table_name, column_name)
-
-        unless null || default.nil?
-          execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
-        end
-
-        change_column table_name, column_name, column.sql_type, :null => null
-      end
-
-      def change_column(table_name, column_name, type, options = {}) #:nodoc:
-        column = column_for(table_name, column_name)
-
-        unless options_include_default?(options)
-          options[:default] = column.default
-        end
-
-        unless options.has_key?(:null)
-          options[:null] = column.null
-        end
-
-        change_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
-        add_column_options!(change_column_sql, options)
-        execute(change_column_sql)
-      end
-
-      def rename_column(table_name, column_name, new_column_name) #:nodoc:
-        options = {}
-        if column = columns(table_name).find { |c| c.name == column_name.to_s }
-          options[:default] = column.default
-          options[:null] = column.null
-        else
-          raise ActiveRecordError, "No such column: #{table_name}.#{column_name}"
-        end
-        current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'")["Type"]
-        rename_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(new_column_name)} #{current_type}"
-        add_column_options!(rename_column_sql, options)
-        execute(rename_column_sql)
-      end
-
-      # Maps logical Rails types to MySQL-specific data types.
-      def type_to_sql(type, limit = nil, precision = nil, scale = nil)
-        return super unless type.to_s == 'integer'
-
-        case limit
-        when 1; 'tinyint'
-        when 2; 'smallint'
-        when 3; 'mediumint'
-        when nil, 4, 11; 'int(11)'  # compatibility with MySQL default
-        when 5..8; 'bigint'
-        else raise(ActiveRecordError, "No integer type has byte size #{limit}")
-        end
-      end
-
-
-      # SHOW VARIABLES LIKE 'name'
-      def show_variable(name)
-        variables = select_all("SHOW VARIABLES LIKE '#{name}'")
-        variables.first['Value'] unless variables.empty?
-      end
-
-      # Returns a table's primary key and belonging sequence.
-      def pk_and_sequence_for(table) #:nodoc:
-        keys = []
-        result = execute("describe #{quote_table_name(table)}")
-        result.each_hash do |h|
-          keys << h["Field"]if h["Key"] == "PRI"
-        end
-        result.free
-        keys.length == 1 ? [keys.first, nil] : nil
-      end
-
-      # Returns just a table's primary key
-      def primary_key(table)
-        pk_and_sequence = pk_and_sequence_for(table)
-        pk_and_sequence && pk_and_sequence.first
-      end
-
-      def case_sensitive_equality_operator
-        "= BINARY"
-      end
-
-      def limited_update_conditions(where_sql, quoted_table_name, quoted_primary_key)
-        where_sql
-      end
-
-      private
-        def connect
-          encoding = @config[:encoding]
-          if encoding
-            @connection.options(Mysql::SET_CHARSET_NAME, encoding) rescue nil
-          end
-
-          if @config[:sslca] || @config[:sslkey]
-            @connection.ssl_set(@config[:sslkey], @config[:sslcert], @config[:sslca], @config[:sslcapath], @config[:sslcipher])
-          end
-
-          @connection.options(Mysql::OPT_CONNECT_TIMEOUT, @config[:connect_timeout]) if @config[:connect_timeout]
-          @connection.options(Mysql::OPT_READ_TIMEOUT, @config[:read_timeout]) if @config[:read_timeout]
-          @connection.options(Mysql::OPT_WRITE_TIMEOUT, @config[:write_timeout]) if @config[:write_timeout]
-
-          @connection.real_connect(*@connection_options)
-
-          # reconnect must be set after real_connect is called, because real_connect sets it to false internally
-          @connection.reconnect = !!@config[:reconnect] if @connection.respond_to?(:reconnect=)
-
-          configure_connection
-        end
-
-        def configure_connection
-          encoding = @config[:encoding]
-          execute("SET NAMES '#{encoding}'") if encoding
-
-          # By default, MySQL 'where id is null' selects the last inserted id.
-          # Turn this off. http://dev.rubyonrails.org/ticket/6778
-          execute("SET SQL_AUTO_IS_NULL=0")
-        end
-
-        def select(sql, name = nil)
-          @connection.query_with_result = true
-          result = execute(sql, name)
-          rows = result.all_hashes
-          result.free
-          rows
-        end
-
-        def supports_views?
-          version[0] >= 5
-        end
-
-        def version
-          @version ||= @connection.server_info.scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i }
-        end
-
-        def column_for(table_name, column_name)
-          unless column = columns(table_name).find { |c| c.name == column_name.to_s }
-            raise "No such column: #{table_name}.#{column_name}"
-          end
-          column
-        end
-    end
-  end
-end
@@ -1,1113 +0,0 @@
-require 'active_record/connection_adapters/abstract_adapter'
-
-begin
-  require_library_or_gem 'pg'
-rescue LoadError => e
-  begin
-    require_library_or_gem 'postgres'
-    class PGresult
-      alias_method :nfields, :num_fields unless self.method_defined?(:nfields)
-      alias_method :ntuples, :num_tuples unless self.method_defined?(:ntuples)
-      alias_method :ftype, :type unless self.method_defined?(:ftype)
-      alias_method :cmd_tuples, :cmdtuples unless self.method_defined?(:cmd_tuples)
-    end
-  rescue LoadError
-    raise e
-  end
-end
-
-module ActiveRecord
-  class Base
-    # Establishes a connection to the database that's used by all Active Record objects
-    def self.postgresql_connection(config) # :nodoc:
-      config = config.symbolize_keys
-      host     = config[:host]
-      port     = config[:port] || 5432
-      username = config[:username].to_s if config[:username]
-      password = config[:password].to_s if config[:password]
-
-      if config.has_key?(:database)
-        database = config[:database]
-      else
-        raise ArgumentError, "No database specified. Missing argument: database."
-      end
-
-      # The postgres drivers don't allow the creation of an unconnected PGconn object,
-      # so just pass a nil connection object for the time being.
-      ConnectionAdapters::PostgreSQLAdapter.new(nil, logger, [host, port, nil, nil, database, username, password], config)
-    end
-  end
-
-  module ConnectionAdapters
-    class TableDefinition
-      def xml(*args)
-        options = args.extract_options!
-        column(args[0], 'xml', options)
-      end
-    end
-    # PostgreSQL-specific extensions to column definitions in a table.
-    class PostgreSQLColumn < Column #:nodoc:
-      # Instantiates a new PostgreSQL column definition in a table.
-      def initialize(name, default, sql_type = nil, null = true)
-        super(name, self.class.extract_value_from_default(default), sql_type, null)
-      end
-
-      private
-        def extract_limit(sql_type)
-          case sql_type
-          when /^bigint/i;    8
-          when /^smallint/i;  2
-          else super
-          end
-        end
-
-        # Extracts the scale from PostgreSQL-specific data types.
-        def extract_scale(sql_type)
-          # Money type has a fixed scale of 2.
-          sql_type =~ /^money/ ? 2 : super
-        end
-
-        # Extracts the precision from PostgreSQL-specific data types.
-        def extract_precision(sql_type)
-          # Actual code is defined dynamically in PostgreSQLAdapter.connect
-          # depending on the server specifics
-          super
-        end
-
-        # Maps PostgreSQL-specific data types to logical Rails types.
-        def simplified_type(field_type)
-          case field_type
-            # Numeric and monetary types
-            when /^(?:real|double precision)$/
-              :float
-            # Monetary types
-            when /^money$/
-              :decimal
-            # Character types
-            when /^(?:character varying|bpchar)(?:\(\d+\))?$/
-              :string
-            # Binary data types
-            when /^bytea$/
-              :binary
-            # Date/time types
-            when /^timestamp with(?:out)? time zone$/
-              :datetime
-            when /^interval$/
-              :string
-            # Geometric types
-            when /^(?:point|line|lseg|box|"?path"?|polygon|circle)$/
-              :string
-            # Network address types
-            when /^(?:cidr|inet|macaddr)$/
-              :string
-            # Bit strings
-            when /^bit(?: varying)?(?:\(\d+\))?$/
-              :string
-            # XML type
-            when /^xml$/
-              :xml
-            # Arrays
-            when /^\D+\[\]$/
-              :string
-            # Object identifier types
-            when /^oid$/
-              :integer
-            # Pass through all types that are not specific to PostgreSQL.
-            else
-              super
-          end
-        end
-
-        # Extracts the value from a PostgreSQL column default definition.
-        def self.extract_value_from_default(default)
-          case default
-            # Numeric types
-            when /\A\(?(-?\d+(\.\d*)?\)?)\z/
-              $1
-            # Character types
-            when /\A'(.*)'::(?:character varying|bpchar|text)\z/m
-              $1
-            # Character types (8.1 formatting)
-            when /\AE'(.*)'::(?:character varying|bpchar|text)\z/m
-              $1.gsub(/\\(\d\d\d)/) { $1.oct.chr }
-            # Binary data types
-            when /\A'(.*)'::bytea\z/m
-              $1
-            # Date/time types
-            when /\A'(.+)'::(?:time(?:stamp)? with(?:out)? time zone|date)\z/
-              $1
-            when /\A'(.*)'::interval\z/
-              $1
-            # Boolean type
-            when 'true'
-              true
-            when 'false'
-              false
-            # Geometric types
-            when /\A'(.*)'::(?:point|line|lseg|box|"?path"?|polygon|circle)\z/
-              $1
-            # Network address types
-            when /\A'(.*)'::(?:cidr|inet|macaddr)\z/
-              $1
-            # Bit string types
-            when /\AB'(.*)'::"?bit(?: varying)?"?\z/
-              $1
-            # XML type
-            when /\A'(.*)'::xml\z/m
-              $1
-            # Arrays
-            when /\A'(.*)'::"?\D+"?\[\]\z/
-              $1
-            # Object identifier types
-            when /\A-?\d+\z/
-              $1
-            else
-              # Anything else is blank, some user type, or some function
-              # and we can't know the value of that, so return nil.
-              nil
-          end
-        end
-    end
-  end
-
-  module ConnectionAdapters
-    # The PostgreSQL adapter works both with the native C (http://ruby.scripting.ca/postgres/) and the pure
-    # Ruby (available both as gem and from http://rubyforge.org/frs/?group_id=234&release_id=1944) drivers.
-    #
-    # Options:
-    #
-    # * <tt>:host</tt> - Defaults to "localhost".
-    # * <tt>:port</tt> - Defaults to 5432.
-    # * <tt>:username</tt> - Defaults to nothing.
-    # * <tt>:password</tt> - Defaults to nothing.
-    # * <tt>:database</tt> - The name of the database. No default, must be provided.
-    # * <tt>:schema_search_path</tt> - An optional schema search path for the connection given as a string of comma-separated schema names.  This is backward-compatible with the <tt>:schema_order</tt> option.
-    # * <tt>:encoding</tt> - An optional client encoding that is used in a <tt>SET client_encoding TO <encoding></tt> call on the connection.
-    # * <tt>:min_messages</tt> - An optional client min messages that is used in a <tt>SET client_min_messages TO <min_messages></tt> call on the connection.
-    # * <tt>:allow_concurrency</tt> - If true, use async query methods so Ruby threads don't deadlock; otherwise, use blocking query methods.
-    class PostgreSQLAdapter < AbstractAdapter
-      ADAPTER_NAME = 'PostgreSQL'.freeze
-
-      NATIVE_DATABASE_TYPES = {
-        :primary_key => "serial primary key".freeze,
-        :string      => { :name => "character varying", :limit => 255 },
-        :text        => { :name => "text" },
-        :integer     => { :name => "integer" },
-        :float       => { :name => "float" },
-        :decimal     => { :name => "decimal" },
-        :datetime    => { :name => "timestamp" },
-        :timestamp   => { :name => "timestamp" },
-        :time        => { :name => "time" },
-        :date        => { :name => "date" },
-        :binary      => { :name => "bytea" },
-        :boolean     => { :name => "boolean" },
-        :xml         => { :name => "xml" }
-      }
-
-      # Returns 'PostgreSQL' as adapter name for identification purposes.
-      def adapter_name
-        ADAPTER_NAME
-      end
-
-      # Initializes and connects a PostgreSQL adapter.
-      def initialize(connection, logger, connection_parameters, config)
-        super(connection, logger)
-        @connection_parameters, @config = connection_parameters, config
-
-        connect
-      end
-
-      # Is this connection alive and ready for queries?
-      def active?
-        if @connection.respond_to?(:status)
-          @connection.status == PGconn::CONNECTION_OK
-        else
-          # We're asking the driver, not ActiveRecord, so use @connection.query instead of #query
-          @connection.query 'SELECT 1'
-          true
-        end
-      # postgres-pr raises a NoMethodError when querying if no connection is available.
-      rescue PGError, NoMethodError
-        false
-      end
-
-      # Close then reopen the connection.
-      def reconnect!
-        if @connection.respond_to?(:reset)
-          @connection.reset
-          configure_connection
-        else
-          disconnect!
-          connect
-        end
-      end
-
-      # Close the connection.
-      def disconnect!
-        @connection.close rescue nil
-      end
-
-      def native_database_types #:nodoc:
-        NATIVE_DATABASE_TYPES
-      end
-
-      # Does PostgreSQL support migrations?
-      def supports_migrations?
-        true
-      end
-
-      # Does PostgreSQL support finding primary key on non-ActiveRecord tables?
-      def supports_primary_key? #:nodoc:
-        true
-      end
-
-      # Does PostgreSQL support standard conforming strings?
-      def supports_standard_conforming_strings?
-        # Temporarily set the client message level above error to prevent unintentional
-        # error messages in the logs when working on a PostgreSQL database server that
-        # does not support standard conforming strings.
-        client_min_messages_old = client_min_messages
-        self.client_min_messages = 'panic'
-
-        # postgres-pr does not raise an exception when client_min_messages is set higher
-        # than error and "SHOW standard_conforming_strings" fails, but returns an empty
-        # PGresult instead.
-        has_support = query('SHOW standard_conforming_strings')[0][0] rescue false
-        self.client_min_messages = client_min_messages_old
-        has_support
-      end
-
-      def supports_insert_with_returning?
-        postgresql_version >= 80200
-      end
-
-      def supports_ddl_transactions?
-        true
-      end
-
-      def supports_savepoints?
-        true
-      end
-
-      # Returns the configured supported identifier length supported by PostgreSQL,
-      # or report the default of 63 on PostgreSQL 7.x.
-      def table_alias_length
-        @table_alias_length ||= (postgresql_version >= 80000 ? query('SHOW max_identifier_length')[0][0].to_i : 63)
-      end
-
-      # QUOTING ==================================================
-
-      # Escapes binary strings for bytea input to the database.
-      def escape_bytea(value)
-        if @connection.respond_to?(:escape_bytea)
-          self.class.instance_eval do
-            define_method(:escape_bytea) do |value|
-              @connection.escape_bytea(value) if value
-            end
-          end
-        elsif PGconn.respond_to?(:escape_bytea)
-          self.class.instance_eval do
-            define_method(:escape_bytea) do |value|
-              PGconn.escape_bytea(value) if value
-            end
-          end
-        else
-          self.class.instance_eval do
-            define_method(:escape_bytea) do |value|
-              if value
-                result = ''
-                value.each_byte { |c| result << sprintf('\\\\%03o', c) }
-                result
-              end
-            end
-          end
-        end
-        escape_bytea(value)
-      end
-
-      # Unescapes bytea output from a database to the binary string it represents.
-      # NOTE: This is NOT an inverse of escape_bytea! This is only to be used
-      #       on escaped binary output from database drive.
-      def unescape_bytea(value)
-        # In each case, check if the value actually is escaped PostgreSQL bytea output
-        # or an unescaped Active Record attribute that was just written.
-        if PGconn.respond_to?(:unescape_bytea)
-          self.class.instance_eval do
-            define_method(:unescape_bytea) do |value|
-              if value =~ /\\\d{3}/
-                PGconn.unescape_bytea(value)
-              else
-                value
-              end
-            end
-          end
-        else
-          self.class.instance_eval do
-            define_method(:unescape_bytea) do |value|
-              if value =~ /\\\d{3}/
-                result = ''
-                i, max = 0, value.size
-                while i < max
-                  char = value[i]
-                  if char == ?\\
-                    if value[i+1] == ?\\
-                      char = ?\\
-                      i += 1
-                    else
-                      char = value[i+1..i+3].oct
-                      i += 3
-                    end
-                  end
-                  result << char
-                  i += 1
-                end
-                result
-              else
-                value
-              end
-            end
-          end
-        end
-        unescape_bytea(value)
-      end
-
-      # Quotes PostgreSQL-specific data types for SQL input.
-      def quote(value, column = nil) #:nodoc:
-        if value.kind_of?(String) && column && column.type == :binary
-          "#{quoted_string_prefix}'#{escape_bytea(value)}'"
-        elsif value.kind_of?(String) && column && column.sql_type =~ /^xml$/
-          "xml E'#{quote_string(value)}'"
-        elsif value.kind_of?(Numeric) && column && column.sql_type =~ /^money$/
-          # Not truly string input, so doesn't require (or allow) escape string syntax.
-          "'#{value.to_s}'"
-        elsif value.kind_of?(String) && column && column.sql_type =~ /^bit/
-          case value
-            when /^[01]*$/
-              "B'#{value}'" # Bit-string notation
-            when /^[0-9A-F]*$/i
-              "X'#{value}'" # Hexadecimal notation
-          end
-        else
-          super
-        end
-      end
-
-      # Quotes strings for use in SQL input in the postgres driver for better performance.
-      def quote_string(s) #:nodoc:
-        if @connection.respond_to?(:escape)
-          self.class.instance_eval do
-            define_method(:quote_string) do |s|
-              @connection.escape(s)
-            end
-          end
-        elsif PGconn.respond_to?(:escape)
-          self.class.instance_eval do
-            define_method(:quote_string) do |s|
-              PGconn.escape(s)
-            end
-          end
-        else
-          # There are some incorrectly compiled postgres drivers out there
-          # that don't define PGconn.escape.
-          self.class.instance_eval do
-            remove_method(:quote_string)
-          end
-        end
-        quote_string(s)
-      end
-
-      # Checks the following cases:
-      #
-      # - table_name
-      # - "table.name"
-      # - schema_name.table_name
-      # - schema_name."table.name"
-      # - "schema.name".table_name
-      # - "schema.name"."table.name"
-      def quote_table_name(name)
-        schema, name_part = extract_pg_identifier_from_name(name.to_s)
-
-        unless name_part
-          quote_column_name(schema)
-        else
-          table_name, name_part = extract_pg_identifier_from_name(name_part)
-          "#{quote_column_name(schema)}.#{quote_column_name(table_name)}"
-        end
-      end
-
-      # Quotes column names for use in SQL queries.
-      def quote_column_name(name) #:nodoc:
-        PGconn.quote_ident(name.to_s)
-      end
-
-      # Quote date/time values for use in SQL input. Includes microseconds
-      # if the value is a Time responding to usec.
-      def quoted_date(value) #:nodoc:
-        if value.acts_like?(:time) && value.respond_to?(:usec)
-          "#{super}.#{sprintf("%06d", value.usec)}"
-        else
-          super
-        end
-      end
-
-      # REFERENTIAL INTEGRITY ====================================
-
-      def supports_disable_referential_integrity?() #:nodoc:
-        version = query("SHOW server_version")[0][0].split('.')
-        (version[0].to_i >= 8 && version[1].to_i >= 1) ? true : false
-      rescue
-        return false
-      end
-
-      def disable_referential_integrity(&block) #:nodoc:
-        if supports_disable_referential_integrity?() then
-          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";"))
-        end
-        yield
-      ensure
-        if supports_disable_referential_integrity?() then
-          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";"))
-        end
-      end
-
-      # DATABASE STATEMENTS ======================================
-
-      # Executes a SELECT query and returns an array of rows. Each row is an
-      # array of field values.
-      def select_rows(sql, name = nil)
-        select_raw(sql, name).last
-      end
-
-      # Executes an INSERT query and returns the new record's ID
-      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
-        # Extract the table from the insert sql. Yuck.
-        table = sql.split(" ", 4)[2].gsub('"', '')
-
-        # Try an insert with 'returning id' if available (PG >= 8.2)
-        if supports_insert_with_returning?
-          pk, sequence_name = *pk_and_sequence_for(table) unless pk
-          if pk
-            id = select_value("#{sql} RETURNING #{quote_column_name(pk)}")
-            clear_query_cache
-            return id
-          end
-        end
-
-        # Otherwise, insert then grab last_insert_id.
-        if insert_id = super
-          insert_id
-        else
-          # If neither pk nor sequence name is given, look them up.
-          unless pk || sequence_name
-            pk, sequence_name = *pk_and_sequence_for(table)
-          end
-
-          # If a pk is given, fallback to default sequence name.
-          # Don't fetch last insert id for a table without a pk.
-          if pk && sequence_name ||= default_sequence_name(table, pk)
-            last_insert_id(table, sequence_name)
-          end
-        end
-      end
-
-      # create a 2D array representing the result set
-      def result_as_array(res) #:nodoc:
-        # check if we have any binary column and if they need escaping
-        unescape_col = []
-        for j in 0...res.nfields do
-          # unescape string passed BYTEA field (OID == 17)
-          unescape_col << ( res.ftype(j)==17 )
-        end
-
-        ary = []
-        for i in 0...res.ntuples do
-          ary << []
-          for j in 0...res.nfields do
-            data = res.getvalue(i,j)
-            data = unescape_bytea(data) if unescape_col[j] and data.is_a?(String)
-            ary[i] << data
-          end
-        end
-        return ary
-      end
-
-
-      # Queries the database and returns the results in an Array-like object
-      def query(sql, name = nil) #:nodoc:
-        log(sql, name) do
-          if @async
-            res = @connection.async_exec(sql)
-          else
-            res = @connection.exec(sql)
-          end
-          return result_as_array(res)
-        end
-      end
-
-      # Executes an SQL statement, returning a PGresult object on success
-      # or raising a PGError exception otherwise.
-      def execute(sql, name = nil)
-        log(sql, name) do
-          if @async
-            @connection.async_exec(sql)
-          else
-            @connection.exec(sql)
-          end
-        end
-      end
-
-      # Executes an UPDATE query and returns the number of affected tuples.
-      def update_sql(sql, name = nil)
-        super.cmd_tuples
-      end
-
-      # Begins a transaction.
-      def begin_db_transaction
-        execute "BEGIN"
-      end
-
-      # Commits a transaction.
-      def commit_db_transaction
-        execute "COMMIT"
-      end
-
-      # Aborts a transaction.
-      def rollback_db_transaction
-        execute "ROLLBACK"
-      end
-
-      if defined?(PGconn::PQTRANS_IDLE)
-        # The ruby-pg driver supports inspecting the transaction status,
-        # while the ruby-postgres driver does not.
-        def outside_transaction?
-          @connection.transaction_status == PGconn::PQTRANS_IDLE
-        end
-      end
-
-      def create_savepoint
-        execute("SAVEPOINT #{current_savepoint_name}")
-      end
-
-      def rollback_to_savepoint
-        execute("ROLLBACK TO SAVEPOINT #{current_savepoint_name}")
-      end
-
-      def release_savepoint
-        execute("RELEASE SAVEPOINT #{current_savepoint_name}")
-      end
-
-      # SCHEMA STATEMENTS ========================================
-
-      def recreate_database(name) #:nodoc:
-        drop_database(name)
-        create_database(name)
-      end
-
-      # Create a new PostgreSQL database.  Options include <tt>:owner</tt>, <tt>:template</tt>,
-      # <tt>:encoding</tt>, <tt>:tablespace</tt>, and <tt>:connection_limit</tt> (note that MySQL uses
-      # <tt>:charset</tt> while PostgreSQL uses <tt>:encoding</tt>).
-      #
-      # Example:
-      #   create_database config[:database], config
-      #   create_database 'foo_development', :encoding => 'unicode'
-      def create_database(name, options = {})
-        options = options.reverse_merge(:encoding => "utf8")
-
-        option_string = options.symbolize_keys.sum do |key, value|
-          case key
-          when :owner
-            " OWNER = \"#{value}\""
-          when :template
-            " TEMPLATE = \"#{value}\""
-          when :encoding
-            " ENCODING = '#{value}'"
-          when :tablespace
-            " TABLESPACE = \"#{value}\""
-          when :connection_limit
-            " CONNECTION LIMIT = #{value}"
-          else
-            ""
-          end
-        end
-
-        execute "CREATE DATABASE #{quote_table_name(name)}#{option_string}"
-      end
-
-      # Drops a PostgreSQL database
-      #
-      # Example:
-      #   drop_database 'matt_development'
-      def drop_database(name) #:nodoc:
-        if postgresql_version >= 80200
-          execute "DROP DATABASE IF EXISTS #{quote_table_name(name)}"
-        else
-          begin
-            execute "DROP DATABASE #{quote_table_name(name)}"
-          rescue ActiveRecord::StatementInvalid
-            @logger.warn "#{name} database doesn't exist." if @logger
-          end
-        end
-      end
-
-
-      # Returns the list of all tables in the schema search path or a specified schema.
-      def tables(name = nil)
-        schemas = schema_search_path.split(/,/).map { |p| quote(p) }.join(',')
-        query(<<-SQL, name).map { |row| row[0] }
-          SELECT tablename
-            FROM pg_tables
-           WHERE schemaname IN (#{schemas})
-        SQL
-      end
-
-      # Returns the list of all indexes for a table.
-      def indexes(table_name, name = nil)
-         schemas = schema_search_path.split(/,/).map { |p| quote(p) }.join(',')
-         result = query(<<-SQL, name)
-           SELECT distinct i.relname, d.indisunique, d.indkey, t.oid
-             FROM pg_class t, pg_class i, pg_index d
-           WHERE i.relkind = 'i'
-             AND d.indexrelid = i.oid
-             AND d.indisprimary = 'f'
-             AND t.oid = d.indrelid
-             AND t.relname = '#{table_name}'
-             AND i.relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname IN (#{schemas}) )
-          ORDER BY i.relname
-        SQL
-
-
-        indexes = []
-
-        indexes = result.map do |row|
-          index_name = row[0]
-          unique = row[1] == 't'
-          indkey = row[2].split(" ")
-          oid = row[3]
-
-          columns = query(<<-SQL, "Columns for index #{row[0]} on #{table_name}").inject({}) {|attlist, r| attlist[r[1]] = r[0]; attlist}
-          SELECT a.attname, a.attnum
-          FROM pg_attribute a
-          WHERE a.attrelid = #{oid}
-          AND a.attnum IN (#{indkey.join(",")})
-          SQL
-
-          column_names = indkey.map {|attnum| columns[attnum] }
-          IndexDefinition.new(table_name, index_name, unique, column_names)
-
-        end
-
-        indexes
-      end
-
-      # Returns the list of all column definitions for a table.
-      def columns(table_name, name = nil)
-        # Limit, precision, and scale are all handled by the superclass.
-        column_definitions(table_name).collect do |name, type, default, notnull|
-          PostgreSQLColumn.new(name, default, type, notnull == 'f')
-        end
-      end
-
-      # Returns the current database name.
-      def current_database
-        query('select current_database()')[0][0]
-      end
-
-      # Returns the current database encoding format.
-      def encoding
-        query(<<-end_sql)[0][0]
-          SELECT pg_encoding_to_char(pg_database.encoding) FROM pg_database
-          WHERE pg_database.datname LIKE '#{current_database}'
-        end_sql
-      end
-
-      # Sets the schema search path to a string of comma-separated schema names.
-      # Names beginning with $ have to be quoted (e.g. $user => '$user').
-      # See: http://www.postgresql.org/docs/current/static/ddl-schemas.html
-      #
-      # This should be not be called manually but set in database.yml.
-      def schema_search_path=(schema_csv)
-        if schema_csv
-          execute "SET search_path TO #{schema_csv}"
-          @schema_search_path = schema_csv
-        end
-      end
-
-      # Returns the active schema search path.
-      def schema_search_path
-        @schema_search_path ||= query('SHOW search_path')[0][0]
-      end
-
-      # Returns the current client message level.
-      def client_min_messages
-        query('SHOW client_min_messages')[0][0]
-      end
-
-      # Set the client message level.
-      def client_min_messages=(level)
-        execute("SET client_min_messages TO '#{level}'")
-      end
-
-      # Returns the sequence name for a table's primary key or some other specified key.
-      def default_sequence_name(table_name, pk = nil) #:nodoc:
-        default_pk, default_seq = pk_and_sequence_for(table_name)
-        default_seq || "#{table_name}_#{pk || default_pk || 'id'}_seq"
-      end
-
-      # Resets the sequence of a table's primary key to the maximum value.
-      def reset_pk_sequence!(table, pk = nil, sequence = nil) #:nodoc:
-        unless pk and sequence
-          default_pk, default_sequence = pk_and_sequence_for(table)
-          pk ||= default_pk
-          sequence ||= default_sequence
-        end
-        if pk
-          if sequence
-            quoted_sequence = quote_column_name(sequence)
-
-            select_value <<-end_sql, 'Reset sequence'
-              SELECT setval('#{quoted_sequence}', (SELECT COALESCE(MAX(#{quote_column_name pk})+(SELECT increment_by FROM #{quoted_sequence}), (SELECT min_value FROM #{quoted_sequence})) FROM #{quote_table_name(table)}), false)
-            end_sql
-          else
-            @logger.warn "#{table} has primary key #{pk} with no default sequence" if @logger
-          end
-        end
-      end
-
-      # Returns a table's primary key and belonging sequence.
-      def pk_and_sequence_for(table) #:nodoc:
-        # First try looking for a sequence with a dependency on the
-        # given table's primary key.
-        result = query(<<-end_sql, 'PK and serial sequence')[0]
-          SELECT attr.attname, seq.relname
-          FROM pg_class      seq,
-               pg_attribute  attr,
-               pg_depend     dep,
-               pg_namespace  name,
-               pg_constraint cons
-          WHERE seq.oid           = dep.objid
-            AND seq.relkind       = 'S'
-            AND attr.attrelid     = dep.refobjid
-            AND attr.attnum       = dep.refobjsubid
-            AND attr.attrelid     = cons.conrelid
-            AND attr.attnum       = cons.conkey[1]
-            AND cons.contype      = 'p'
-            AND dep.refobjid      = '#{quote_table_name(table)}'::regclass
-        end_sql
-
-        if result.nil? or result.empty?
-          # If that fails, try parsing the primary key's default value.
-          # Support the 7.x and 8.0 nextval('foo'::text) as well as
-          # the 8.1+ nextval('foo'::regclass).
-          result = query(<<-end_sql, 'PK and custom sequence')[0]
-            SELECT attr.attname,
-              CASE
-                WHEN split_part(def.adsrc, '''', 2) ~ '.' THEN
-                  substr(split_part(def.adsrc, '''', 2),
-                         strpos(split_part(def.adsrc, '''', 2), '.')+1)
-                ELSE split_part(def.adsrc, '''', 2)
-              END
-            FROM pg_class       t
-            JOIN pg_attribute   attr ON (t.oid = attrelid)
-            JOIN pg_attrdef     def  ON (adrelid = attrelid AND adnum = attnum)
-            JOIN pg_constraint  cons ON (conrelid = adrelid AND adnum = conkey[1])
-            WHERE t.oid = '#{quote_table_name(table)}'::regclass
-              AND cons.contype = 'p'
-              AND def.adsrc ~* 'nextval'
-          end_sql
-        end
-
-        # [primary_key, sequence]
-        [result.first, result.last]
-      rescue
-        nil
-      end
-
-      # Returns just a table's primary key
-      def primary_key(table)
-        pk_and_sequence = pk_and_sequence_for(table)
-        pk_and_sequence && pk_and_sequence.first
-      end
-
-      # Renames a table.
-      def rename_table(name, new_name)
-        execute "ALTER TABLE #{quote_table_name(name)} RENAME TO #{quote_table_name(new_name)}"
-      end
-
-      # Adds a new column to the named table.
-      # See TableDefinition#column for details of the options you can use.
-      def add_column(table_name, column_name, type, options = {})
-        default = options[:default]
-        notnull = options[:null] == false
-
-        # Add the column.
-        execute("ALTER TABLE #{quote_table_name(table_name)} ADD COLUMN #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}")
-
-        change_column_default(table_name, column_name, default) if options_include_default?(options)
-        change_column_null(table_name, column_name, false, default) if notnull
-      end
-
-      # Changes the column of a table.
-      def change_column(table_name, column_name, type, options = {})
-        quoted_table_name = quote_table_name(table_name)
-
-        begin
-          execute "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
-        rescue ActiveRecord::StatementInvalid => e
-          raise e if postgresql_version > 80000
-          # This is PostgreSQL 7.x, so we have to use a more arcane way of doing it.
-          begin
-            begin_db_transaction
-            tmp_column_name = "#{column_name}_ar_tmp"
-            add_column(table_name, tmp_column_name, type, options)
-            execute "UPDATE #{quoted_table_name} SET #{quote_column_name(tmp_column_name)} = CAST(#{quote_column_name(column_name)} AS #{type_to_sql(type, options[:limit], options[:precision], options[:scale])})"
-            remove_column(table_name, column_name)
-            rename_column(table_name, tmp_column_name, column_name)
-            commit_db_transaction
-          rescue
-            rollback_db_transaction
-          end
-        end
-
-        change_column_default(table_name, column_name, options[:default]) if options_include_default?(options)
-        change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null)
-      end
-
-      # Changes the default value of a table column.
-      def change_column_default(table_name, column_name, default)
-        execute "ALTER TABLE #{quote_table_name(table_name)} ALTER COLUMN #{quote_column_name(column_name)} SET DEFAULT #{quote(default)}"
-      end
-
-      def change_column_null(table_name, column_name, null, default = nil)
-        unless null || default.nil?
-          execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
-        end
-        execute("ALTER TABLE #{quote_table_name(table_name)} ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL")
-      end
-
-      # Renames a column in a table.
-      def rename_column(table_name, column_name, new_column_name)
-        execute "ALTER TABLE #{quote_table_name(table_name)} RENAME COLUMN #{quote_column_name(column_name)} TO #{quote_column_name(new_column_name)}"
-      end
-
-      # Drops an index from a table.
-      def remove_index(table_name, options = {})
-        execute "DROP INDEX #{quote_table_name(index_name(table_name, options))}"
-      end
-
-      # Maps logical Rails types to PostgreSQL-specific data types.
-      def type_to_sql(type, limit = nil, precision = nil, scale = nil)
-        return super unless type.to_s == 'integer'
-
-        case limit
-          when 1..2;      'smallint'
-          when 3..4, nil; 'integer'
-          when 5..8;      'bigint'
-          else raise(ActiveRecordError, "No integer type has byte size #{limit}. Use a numeric with precision 0 instead.")
-        end
-      end
-
-      # Returns a SELECT DISTINCT clause for a given set of columns and a given ORDER BY clause.
-      #
-      # PostgreSQL requires the ORDER BY columns in the select list for distinct queries, and
-      # requires that the ORDER BY include the distinct column.
-      #
-      #   distinct("posts.id", "posts.created_at desc")
-      def distinct(columns, order_by) #:nodoc:
-        return "DISTINCT #{columns}" if order_by.blank?
-
-        # Construct a clean list of column names from the ORDER BY clause, removing
-        # any ASC/DESC modifiers
-        order_columns = order_by.split(',').collect { |s| s.split.first }
-        order_columns.delete_if &:blank?
-        order_columns = order_columns.zip((0...order_columns.size).to_a).map { |s,i| "#{s} AS alias_#{i}" }
-
-        # Return a DISTINCT ON() clause that's distinct on the columns we want but includes
-        # all the required columns for the ORDER BY to work properly.
-        sql = "DISTINCT ON (#{columns}) #{columns}, "
-        sql << order_columns * ', '
-      end
-
-      # Returns an ORDER BY clause for the passed order option.
-      #
-      # PostgreSQL does not allow arbitrary ordering when using DISTINCT ON, so we work around this
-      # by wrapping the +sql+ string as a sub-select and ordering in that query.
-      def add_order_by_for_association_limiting!(sql, options) #:nodoc:
-        return sql if options[:order].blank?
-
-        order = options[:order].split(',').collect { |s| s.strip }.reject(&:blank?)
-        order.map! { |s| 'DESC' if s =~ /\bdesc$/i }
-        order = order.zip((0...order.size).to_a).map { |s,i| "id_list.alias_#{i} #{s}" }.join(', ')
-
-        sql.replace "SELECT * FROM (#{sql}) AS id_list ORDER BY #{order}"
-      end
-
-      protected
-        # Returns the version of the connected PostgreSQL version.
-        def postgresql_version
-          @postgresql_version ||=
-            if @connection.respond_to?(:server_version)
-              @connection.server_version
-            else
-              # Mimic PGconn.server_version behavior
-              begin
-                query('SELECT version()')[0][0] =~ /PostgreSQL (\d+)\.(\d+)\.(\d+)/
-                ($1.to_i * 10000) + ($2.to_i * 100) + $3.to_i
-              rescue
-                0
-              end
-            end
-        end
-
-      private
-        # The internal PostgreSQL identifier of the money data type.
-        MONEY_COLUMN_TYPE_OID = 790 #:nodoc:
-
-        # Connects to a PostgreSQL server and sets up the adapter depending on the
-        # connected server's characteristics.
-        def connect
-          @connection = PGconn.connect(*@connection_parameters)
-          PGconn.translate_results = false if PGconn.respond_to?(:translate_results=)
-
-          # Ignore async_exec and async_query when using postgres-pr.
-          @async = @config[:allow_concurrency] && @connection.respond_to?(:async_exec)
-
-          # Use escape string syntax if available. We cannot do this lazily when encountering
-          # the first string, because that could then break any transactions in progress.
-          # See: http://www.postgresql.org/docs/current/static/runtime-config-compatible.html
-          # If PostgreSQL doesn't know the standard_conforming_strings parameter then it doesn't
-          # support escape string syntax. Don't override the inherited quoted_string_prefix.
-          if supports_standard_conforming_strings?
-            self.class.instance_eval do
-              define_method(:quoted_string_prefix) { 'E' }
-            end
-          end
-
-          # Money type has a fixed precision of 10 in PostgreSQL 8.2 and below, and as of
-          # PostgreSQL 8.3 it has a fixed precision of 19. PostgreSQLColumn.extract_precision
-          # should know about this but can't detect it there, so deal with it here.
-          money_precision = (postgresql_version >= 80300) ? 19 : 10
-          PostgreSQLColumn.module_eval(<<-end_eval)
-            def extract_precision(sql_type)  # def extract_precision(sql_type)
-              if sql_type =~ /^money$/       #   if sql_type =~ /^money$/
-                #{money_precision}           #     19
-              else                           #   else
-                super                        #     super
-              end                            #   end
-            end                              # end
-          end_eval
-
-          configure_connection
-        end
-
-        # Configures the encoding, verbosity, and schema search path of the connection.
-        # This is called by #connect and should not be called manually.
-        def configure_connection
-          if @config[:encoding]
-            if @connection.respond_to?(:set_client_encoding)
-              @connection.set_client_encoding(@config[:encoding])
-            else
-              execute("SET client_encoding TO '#{@config[:encoding]}'")
-            end
-          end
-          self.client_min_messages = @config[:min_messages] if @config[:min_messages]
-          self.schema_search_path = @config[:schema_search_path] || @config[:schema_order]
-        end
-
-        # Returns the current ID of a table's sequence.
-        def last_insert_id(table, sequence_name) #:nodoc:
-          Integer(select_value("SELECT currval('#{sequence_name}')"))
-        end
-
-        # Executes a SELECT query and returns the results, performing any data type
-        # conversions that are required to be performed here instead of in PostgreSQLColumn.
-        def select(sql, name = nil)
-          fields, rows = select_raw(sql, name)
-          result = []
-          for row in rows
-            row_hash = {}
-            fields.each_with_index do |f, i|
-              row_hash[f] = row[i]
-            end
-            result << row_hash
-          end
-          result
-        end
-
-        def select_raw(sql, name = nil)
-          res = execute(sql, name)
-          results = result_as_array(res)
-          fields = []
-          rows = []
-          if res.ntuples > 0
-            fields = res.fields
-            results.each do |row|
-              hashed_row = {}
-              row.each_index do |cell_index|
-                # If this is a money type column and there are any currency symbols,
-                # then strip them off. Indeed it would be prettier to do this in
-                # PostgreSQLColumn.string_to_decimal but would break form input
-                # fields that call value_before_type_cast.
-                if res.ftype(cell_index) == MONEY_COLUMN_TYPE_OID
-                  # Because money output is formatted according to the locale, there are two
-                  # cases to consider (note the decimal separators):
-                  #  (1) $12,345,678.12
-                  #  (2) $12.345.678,12
-                  case column = row[cell_index]
-                    when /^-?\D+[\d,]+\.\d{2}$/  # (1)
-                      row[cell_index] = column.gsub(/[^-\d\.]/, '')
-                    when /^-?\D+[\d\.]+,\d{2}$/  # (2)
-                      row[cell_index] = column.gsub(/[^-\d,]/, '').sub(/,/, '.')
-                  end
-                end
-
-                hashed_row[fields[cell_index]] = column
-              end
-              rows << row
-            end
-          end
-          res.clear
-          return fields, rows
-        end
-
-        # Returns the list of a table's column names, data types, and default values.
-        #
-        # The underlying query is roughly:
-        #  SELECT column.name, column.type, default.value
-        #    FROM column LEFT JOIN default
-        #      ON column.table_id = default.table_id
-        #     AND column.num = default.column_num
-        #   WHERE column.table_id = get_table_id('table_name')
-        #     AND column.num > 0
-        #     AND NOT column.is_dropped
-        #   ORDER BY column.num
-        #
-        # If the table name is not prefixed with a schema, the database will
-        # take the first match from the schema search path.
-        #
-        # Query implementation notes:
-        #  - format_type includes the column size constraint, e.g. varchar(50)
-        #  - ::regclass is a function that gives the id for a table name
-        def column_definitions(table_name) #:nodoc:
-          query <<-end_sql
-            SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
-              FROM pg_attribute a LEFT JOIN pg_attrdef d
-                ON a.attrelid = d.adrelid AND a.attnum = d.adnum
-             WHERE a.attrelid = '#{quote_table_name(table_name)}'::regclass
-               AND a.attnum > 0 AND NOT a.attisdropped
-             ORDER BY a.attnum
-          end_sql
-        end
-
-        def extract_pg_identifier_from_name(name)
-          match_data = name[0,1] == '"' ? name.match(/\"([^\"]+)\"/) : name.match(/([^\.]+)/)
-
-          if match_data
-            rest = name[match_data[0].length..-1]
-            rest = rest[1..-1] if rest[0,1] == "."
-            [match_data[1], (rest.length > 0 ? rest : nil)]
-          end
-        end
-    end
-  end
-end
-
@@ -1,34 +0,0 @@
-require 'active_record/connection_adapters/sqlite_adapter'
-
-module ActiveRecord
-  class Base
-    # sqlite3 adapter reuses sqlite_connection.
-    def self.sqlite3_connection(config) # :nodoc:
-      parse_sqlite_config!(config)
-
-      unless self.class.const_defined?(:SQLite3)
-        require_library_or_gem(config[:adapter])
-      end
-
-      db = SQLite3::Database.new(
-        config[:database],
-        :results_as_hash => true,
-        :type_translation => false
-      )
-
-      db.busy_timeout(config[:timeout]) unless config[:timeout].nil?
-
-      ConnectionAdapters::SQLite3Adapter.new(db, logger, config)
-    end
-  end
-
-  module ConnectionAdapters #:nodoc:
-    class SQLite3Adapter < SQLiteAdapter # :nodoc:
-      def table_structure(table_name)
-        returning structure = @connection.table_info(quote_table_name(table_name)) do
-          raise(ActiveRecord::StatementInvalid, "Could not find table '#{table_name}'") if structure.empty?
-        end
-      end
-    end
-  end
-end
@@ -1,453 +0,0 @@
-# encoding: binary
-require 'active_record/connection_adapters/abstract_adapter'
-
-module ActiveRecord
-  class Base
-    class << self
-      # Establishes a connection to the database that's used by all Active Record objects
-      def sqlite_connection(config) # :nodoc:
-        parse_sqlite_config!(config)
-
-        unless self.class.const_defined?(:SQLite)
-          require_library_or_gem(config[:adapter])
-
-          db = SQLite::Database.new(config[:database], 0)
-          db.show_datatypes   = "ON" if !defined? SQLite::Version
-          db.results_as_hash  = true if defined? SQLite::Version
-          db.type_translation = false
-
-          message = "Support for SQLite2Adapter and DeprecatedSQLiteAdapter has been removed from Rails 3. "
-          message << "You should migrate to SQLite 3+ or use the plugin from git://github.com/rails/sqlite2_adapter.git with Rails 3."
-          ActiveSupport::Deprecation.warn(message)
-
-          # "Downgrade" deprecated sqlite API
-          if SQLite.const_defined?(:Version)
-            ConnectionAdapters::SQLite2Adapter.new(db, logger, config)
-          else
-            ConnectionAdapters::DeprecatedSQLiteAdapter.new(db, logger, config)
-          end
-        end
-      end
-
-      private
-        def parse_sqlite_config!(config)
-          if config.include?(:dbfile)
-            ActiveSupport::Deprecation.warn "Please update config/database.yml to use 'database' instead of 'dbfile'"
-          end
-
-          config[:database] ||= config[:dbfile]
-          # Require database.
-          unless config[:database]
-            raise ArgumentError, "No database file specified. Missing argument: database"
-          end
-
-          # Allow database path relative to RAILS_ROOT, but only if
-          # the database path is not the special path that tells
-          # Sqlite to build a database only in memory.
-          if Object.const_defined?(:RAILS_ROOT) && ':memory:' != config[:database]
-            config[:database] = File.expand_path(config[:database], RAILS_ROOT)
-          end
-        end
-    end
-  end
-
-  module ConnectionAdapters #:nodoc:
-    class SQLiteColumn < Column #:nodoc:
-      class <<  self
-        def string_to_binary(value)
-          value = value.dup.force_encoding(Encoding::BINARY) if value.respond_to?(:force_encoding)
-          value.gsub(/\0|\%/n) do |b|
-            case b
-              when "\0" then "%00"
-              when "%"  then "%25"
-            end
-          end
-        end
-
-        def binary_to_string(value)
-          value = value.dup.force_encoding(Encoding::BINARY) if value.respond_to?(:force_encoding)
-          value.gsub(/%00|%25/n) do |b|
-            case b
-              when "%00" then "\0"
-              when "%25" then "%"
-            end
-          end
-        end
-      end
-    end
-
-    # The SQLite adapter works with both the 2.x and 3.x series of SQLite with the sqlite-ruby drivers (available both as gems and
-    # from http://rubyforge.org/projects/sqlite-ruby/).
-    #
-    # Options:
-    #
-    # * <tt>:database</tt> - Path to the database file.
-    class SQLiteAdapter < AbstractAdapter
-      class Version
-        include Comparable
-
-        def initialize(version_string)
-          @version = version_string.split('.').map(&:to_i)
-        end
-
-        def <=>(version_string)
-          @version <=> version_string.split('.').map(&:to_i)
-        end
-      end
-
-      def initialize(connection, logger, config)
-        super(connection, logger)
-        @config = config
-      end
-
-      def adapter_name #:nodoc:
-        'SQLite'
-      end
-
-      def supports_ddl_transactions?
-        sqlite_version >= '2.0.0'
-      end
-
-      def supports_migrations? #:nodoc:
-        true
-      end
-
-      def supports_primary_key? #:nodoc:
-        true
-      end
-
-      def requires_reloading?
-        true
-      end
-
-      def supports_add_column?
-        sqlite_version >= '3.1.6'
-      end
- 
-      def disconnect!
-        super
-        @connection.close rescue nil
-      end
-
-      def supports_count_distinct? #:nodoc:
-        sqlite_version >= '3.2.6'
-      end
-
-      def supports_autoincrement? #:nodoc:
-        sqlite_version >= '3.1.0'
-      end
-
-      def native_database_types #:nodoc:
-        {
-          :primary_key => default_primary_key_type,
-          :string      => { :name => "varchar", :limit => 255 },
-          :text        => { :name => "text" },
-          :integer     => { :name => "integer" },
-          :float       => { :name => "float" },
-          :decimal     => { :name => "decimal" },
-          :datetime    => { :name => "datetime" },
-          :timestamp   => { :name => "datetime" },
-          :time        => { :name => "time" },
-          :date        => { :name => "date" },
-          :binary      => { :name => "blob" },
-          :boolean     => { :name => "boolean" }
-        }
-      end
-
-
-      # QUOTING ==================================================
-
-      def quote_string(s) #:nodoc:
-        @connection.class.quote(s)
-      end
-
-      def quote_column_name(name) #:nodoc:
-        %Q("#{name}")
-      end
-
-
-      # DATABASE STATEMENTS ======================================
-
-      def execute(sql, name = nil) #:nodoc:
-        catch_schema_changes { log(sql, name) { @connection.execute(sql) } }
-      end
-
-      def update_sql(sql, name = nil) #:nodoc:
-        super
-        @connection.changes
-      end
-
-      def delete_sql(sql, name = nil) #:nodoc:
-        sql += " WHERE 1=1" unless sql =~ /WHERE/i
-        super sql, name
-      end
-
-      def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
-        super || @connection.last_insert_row_id
-      end
-
-      def select_rows(sql, name = nil)
-        execute(sql, name).map do |row|
-          (0...(row.size / 2)).map { |i| row[i] }
-        end
-      end
-
-      def begin_db_transaction #:nodoc:
-        catch_schema_changes { @connection.transaction }
-      end
-
-      def commit_db_transaction #:nodoc:
-        catch_schema_changes { @connection.commit }
-      end
-
-      def rollback_db_transaction #:nodoc:
-        catch_schema_changes { @connection.rollback }
-      end
-
-      # SELECT ... FOR UPDATE is redundant since the table is locked.
-      def add_lock!(sql, options) #:nodoc:
-        sql
-      end
-
-
-      # SCHEMA STATEMENTS ========================================
-
-      def tables(name = nil) #:nodoc:
-        sql = <<-SQL
-          SELECT name
-          FROM sqlite_master
-          WHERE type = 'table' AND NOT name = 'sqlite_sequence'
-        SQL
-
-        execute(sql, name).map do |row|
-          row[0]
-        end
-      end
-
-      def columns(table_name, name = nil) #:nodoc:
-        table_structure(table_name).map do |field|
-          SQLiteColumn.new(field['name'], field['dflt_value'], field['type'], field['notnull'] == "0")
-        end
-      end
-
-      def indexes(table_name, name = nil) #:nodoc:
-        execute("PRAGMA index_list(#{quote_table_name(table_name)})", name).map do |row|
-          index = IndexDefinition.new(table_name, row['name'])
-          index.unique = row['unique'] != '0'
-          index.columns = execute("PRAGMA index_info('#{index.name}')").map { |col| col['name'] }
-          index
-        end
-      end
-
-      def primary_key(table_name) #:nodoc:
-        column = table_structure(table_name).find {|field| field['pk'].to_i == 1}
-        column ? column['name'] : nil
-      end
-
-      def remove_index(table_name, options={}) #:nodoc:
-        execute "DROP INDEX #{quote_column_name(index_name(table_name, options))}"
-      end
-
-      def rename_table(name, new_name)
-        execute "ALTER TABLE #{name} RENAME TO #{new_name}"
-      end
-
-      # See: http://www.sqlite.org/lang_altertable.html
-      # SQLite has an additional restriction on the ALTER TABLE statement
-      def valid_alter_table_options( type, options)
-        type.to_sym != :primary_key
-      end
-
-      def add_column(table_name, column_name, type, options = {}) #:nodoc:
-        if supports_add_column? && valid_alter_table_options( type, options )
-          super(table_name, column_name, type, options)
-        else
-          alter_table(table_name) do |definition|
-            definition.column(column_name, type, options)
-          end
-        end
-      end
-
-      def remove_column(table_name, *column_names) #:nodoc:
-        column_names.flatten.each do |column_name|
-          alter_table(table_name) do |definition|
-            definition.columns.delete(definition[column_name])
-          end
-        end
-      end
-      alias :remove_columns :remove_column
-
-      def change_column_default(table_name, column_name, default) #:nodoc:
-        alter_table(table_name) do |definition|
-          definition[column_name].default = default
-        end
-      end
-
-      def change_column_null(table_name, column_name, null, default = nil)
-        unless null || default.nil?
-          execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
-        end
-        alter_table(table_name) do |definition|
-          definition[column_name].null = null
-        end
-      end
-
-      def change_column(table_name, column_name, type, options = {}) #:nodoc:
-        alter_table(table_name) do |definition|
-          include_default = options_include_default?(options)
-          definition[column_name].instance_eval do
-            self.type    = type
-            self.limit   = options[:limit] if options.include?(:limit)
-            self.default = options[:default] if include_default
-            self.null    = options[:null] if options.include?(:null)
-          end
-        end
-      end
-
-      def rename_column(table_name, column_name, new_column_name) #:nodoc:
-        unless columns(table_name).detect{|c| c.name == column_name.to_s }
-          raise ActiveRecord::ActiveRecordError, "Missing column #{table_name}.#{column_name}"
-        end
-        alter_table(table_name, :rename => {column_name.to_s => new_column_name.to_s})
-      end
-
-      def empty_insert_statement(table_name)
-        "INSERT INTO #{table_name} VALUES(NULL)"
-      end
-
-      protected
-        def select(sql, name = nil) #:nodoc:
-          execute(sql, name).map do |row|
-            record = {}
-            row.each_key do |key|
-              if key.is_a?(String)
-                record[key.sub(/^"?\w+"?\./, '')] = row[key]
-              end
-            end
-            record
-          end
-        end
-
-        def table_structure(table_name)
-          returning structure = execute("PRAGMA table_info(#{quote_table_name(table_name)})") do
-            raise(ActiveRecord::StatementInvalid, "Could not find table '#{table_name}'") if structure.empty?
-          end
-        end
-
-        def alter_table(table_name, options = {}) #:nodoc:
-          altered_table_name = "altered_#{table_name}"
-          caller = lambda {|definition| yield definition if block_given?}
-
-          transaction do
-            move_table(table_name, altered_table_name,
-              options.merge(:temporary => true))
-            move_table(altered_table_name, table_name, &caller)
-          end
-        end
-
-        def move_table(from, to, options = {}, &block) #:nodoc:
-          copy_table(from, to, options, &block)
-          drop_table(from)
-        end
-
-        def copy_table(from, to, options = {}) #:nodoc:
-          options = options.merge(:id => (!columns(from).detect{|c| c.name == 'id'}.nil? && 'id' == primary_key(from).to_s))
-          create_table(to, options) do |definition|
-            @definition = definition
-            columns(from).each do |column|
-              column_name = options[:rename] ?
-                (options[:rename][column.name] ||
-                 options[:rename][column.name.to_sym] ||
-                 column.name) : column.name
-              
-              @definition.column(column_name, column.type,
-                :limit => column.limit, :default => column.default,
-                :null => column.null)
-            end
-            @definition.primary_key(primary_key(from)) if primary_key(from)
-            yield @definition if block_given?
-          end
-
-          copy_table_indexes(from, to, options[:rename] || {})
-          copy_table_contents(from, to,
-            @definition.columns.map {|column| column.name},
-            options[:rename] || {})
-        end
-
-        def copy_table_indexes(from, to, rename = {}) #:nodoc:
-          indexes(from).each do |index|
-            name = index.name
-            if to == "altered_#{from}"
-              name = "temp_#{name}"
-            elsif from == "altered_#{to}"
-              name = name[5..-1]
-            end
-
-            to_column_names = columns(to).map(&:name)
-            columns = index.columns.map {|c| rename[c] || c }.select do |column|
-              to_column_names.include?(column)
-            end
-
-            unless columns.empty?
-              # index name can't be the same
-              opts = { :name => name.gsub(/_(#{from})_/, "_#{to}_") }
-              opts[:unique] = true if index.unique
-              add_index(to, columns, opts)
-            end
-          end
-        end
-
-        def copy_table_contents(from, to, columns, rename = {}) #:nodoc:
-          column_mappings = Hash[*columns.map {|name| [name, name]}.flatten]
-          rename.inject(column_mappings) {|map, a| map[a.last] = a.first; map}
-          from_columns = columns(from).collect {|col| col.name}
-          columns = columns.find_all{|col| from_columns.include?(column_mappings[col])}
-          quoted_columns = columns.map { |col| quote_column_name(col) } * ','
-
-          quoted_to = quote_table_name(to)
-          @connection.execute "SELECT * FROM #{quote_table_name(from)}" do |row|
-            sql = "INSERT INTO #{quoted_to} (#{quoted_columns}) VALUES ("
-            sql << columns.map {|col| quote row[column_mappings[col]]} * ', '
-            sql << ')'
-            @connection.execute sql
-          end
-        end
-
-        def catch_schema_changes
-          return yield
-        rescue ActiveRecord::StatementInvalid => exception
-          if exception.message =~ /database schema has changed/
-            reconnect!
-            retry
-          else
-            raise
-          end
-        end
-
-        def sqlite_version
-          @sqlite_version ||= SQLiteAdapter::Version.new(select_value('select sqlite_version(*)'))
-        end
-
-        def default_primary_key_type
-          if supports_autoincrement?
-            'INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL'.freeze
-          else
-            'INTEGER PRIMARY KEY NOT NULL'.freeze
-          end
-        end
-    end
-
-    class SQLite2Adapter < SQLiteAdapter # :nodoc:
-      def rename_table(name, new_name)
-        move_table(name, new_name)
-      end
-    end
-
-    class DeprecatedSQLiteAdapter < SQLite2Adapter # :nodoc:
-      def insert(sql, name = nil, pk = nil, id_value = nil)
-        execute(sql, name = nil)
-        id_value || @connection.last_insert_rowid
-      end
-    end
-  end
-end
@@ -1,183 +0,0 @@
-module ActiveRecord
-  # Track unsaved attribute changes.
-  #
-  # A newly instantiated object is unchanged:
-  #   person = Person.find_by_name('uncle bob')
-  #   person.changed?       # => false
-  #
-  # Change the name:
-  #   person.name = 'Bob'
-  #   person.changed?       # => true
-  #   person.name_changed?  # => true
-  #   person.name_was       # => 'uncle bob'
-  #   person.name_change    # => ['uncle bob', 'Bob']
-  #   person.name = 'Bill'
-  #   person.name_change    # => ['uncle bob', 'Bill']
-  #
-  # Save the changes:
-  #   person.save
-  #   person.changed?       # => false
-  #   person.name_changed?  # => false
-  #
-  # Assigning the same value leaves the attribute unchanged:
-  #   person.name = 'Bill'
-  #   person.name_changed?  # => false
-  #   person.name_change    # => nil
-  #
-  # Which attributes have changed?
-  #   person.name = 'bob'
-  #   person.changed        # => ['name']
-  #   person.changes        # => { 'name' => ['Bill', 'bob'] }
-  #
-  # Before modifying an attribute in-place:
-  #   person.name_will_change!
-  #   person.name << 'by'
-  #   person.name_change    # => ['uncle bob', 'uncle bobby']
-  module Dirty
-    DIRTY_SUFFIXES = ['_changed?', '_change', '_will_change!', '_was']
-
-    def self.included(base)
-      base.attribute_method_suffix *DIRTY_SUFFIXES
-      base.alias_method_chain :write_attribute, :dirty
-      base.alias_method_chain :save,            :dirty
-      base.alias_method_chain :save!,           :dirty
-      base.alias_method_chain :update,          :dirty
-      base.alias_method_chain :reload,          :dirty
-
-      base.superclass_delegating_accessor :partial_updates
-      base.partial_updates = true
-
-      base.send(:extend, ClassMethods)
-    end
-
-    # Do any attributes have unsaved changes?
-    #   person.changed? # => false
-    #   person.name = 'bob'
-    #   person.changed? # => true
-    def changed?
-      !changed_attributes.empty?
-    end
-
-    # List of attributes with unsaved changes.
-    #   person.changed # => []
-    #   person.name = 'bob'
-    #   person.changed # => ['name']
-    def changed
-      changed_attributes.keys
-    end
-
-    # Map of changed attrs => [original value, new value].
-    #   person.changes # => {}
-    #   person.name = 'bob'
-    #   person.changes # => { 'name' => ['bill', 'bob'] }
-    def changes
-      changed.inject({}) { |h, attr| h[attr] = attribute_change(attr); h }
-    end
-
-    # Attempts to +save+ the record and clears changed attributes if successful.
-    def save_with_dirty(*args) #:nodoc:
-      if status = save_without_dirty(*args)
-        changed_attributes.clear
-      end
-      status
-    end
-
-    # Attempts to <tt>save!</tt> the record and clears changed attributes if successful.
-    def save_with_dirty!(*args) #:nodoc:
-      status = save_without_dirty!(*args)
-      changed_attributes.clear
-      status
-    end
-
-    # <tt>reload</tt> the record and clears changed attributes.
-    def reload_with_dirty(*args) #:nodoc:
-      record = reload_without_dirty(*args)
-      changed_attributes.clear
-      record
-    end
-
-    private
-      # Map of change <tt>attr => original value</tt>.
-      def changed_attributes
-        @changed_attributes ||= {}
-      end
-
-      # Handle <tt>*_changed?</tt> for +method_missing+.
-      def attribute_changed?(attr)
-        changed_attributes.include?(attr)
-      end
-
-      # Handle <tt>*_change</tt> for +method_missing+.
-      def attribute_change(attr)
-        [changed_attributes[attr], __send__(attr)] if attribute_changed?(attr)
-      end
-
-      # Handle <tt>*_was</tt> for +method_missing+.
-      def attribute_was(attr)
-        attribute_changed?(attr) ? changed_attributes[attr] : __send__(attr)
-      end
-
-      # Handle <tt>*_will_change!</tt> for +method_missing+.
-      def attribute_will_change!(attr)
-        changed_attributes[attr] = clone_attribute_value(:read_attribute, attr)
-      end
-
-      # Wrap write_attribute to remember original attribute value.
-      def write_attribute_with_dirty(attr, value)
-        attr = attr.to_s
-
-        # The attribute already has an unsaved change.
-        if changed_attributes.include?(attr)
-          old = changed_attributes[attr]
-          changed_attributes.delete(attr) unless field_changed?(attr, old, value)
-        else
-          old = clone_attribute_value(:read_attribute, attr)
-          changed_attributes[attr] = old if field_changed?(attr, old, value)
-        end
-
-        # Carry on.
-        write_attribute_without_dirty(attr, value)
-      end
-
-      def update_with_dirty
-        if partial_updates?
-          # Serialized attributes should always be written in case they've been
-          # changed in place.
-          update_without_dirty(changed | (attributes.keys & self.class.serialized_attributes.keys))
-        else
-          update_without_dirty
-        end
-      end
-
-      def field_changed?(attr, old, value)
-        if column = column_for_attribute(attr)
-          if column.number? && column.null && (old.nil? || old == 0) && value.blank?
-            # For nullable numeric columns, NULL gets stored in database for blank (i.e. '') values.
-            # Hence we don't record it as a change if the value changes from nil to ''.
-            # If an old value of 0 is set to '' we want this to get changed to nil as otherwise it'll
-            # be typecast back to 0 (''.to_i => 0)
-            value = nil
-          else
-            value = column.type_cast(value)
-          end
-        end
-
-        old != value
-      end
-
-    module ClassMethods
-      def self.extended(base)
-        base.metaclass.alias_method_chain(:alias_attribute, :dirty)
-      end
-
-      def alias_attribute_with_dirty(new_name, old_name)
-        alias_attribute_without_dirty(new_name, old_name)
-        DIRTY_SUFFIXES.each do |suffix|
-          module_eval <<-STR, __FILE__, __LINE__+1
-            def #{new_name}#{suffix}; self.#{old_name}#{suffix}; end  # def subject_changed?; self.title_changed?; end
-          STR
-        end
-      end
-    end
-  end
-end
@@ -1,41 +0,0 @@
-module ActiveRecord
-  class DynamicFinderMatch
-    def self.match(method)
-      df_match = self.new(method)
-      df_match.finder ? df_match : nil
-    end
-
-    def initialize(method)
-      @finder = :first
-      case method.to_s
-      when /^find_(all_by|last_by|by)_([_a-zA-Z]\w*)$/
-        @finder = :last if $1 == 'last_by'
-        @finder = :all if $1 == 'all_by'
-        names = $2
-      when /^find_by_([_a-zA-Z]\w*)\!$/
-        @bang = true
-        names = $1
-      when /^find_or_(initialize|create)_by_([_a-zA-Z]\w*)$/
-        @instantiator = $1 == 'initialize' ? :new : :create
-        names = $2
-      else
-        @finder = nil
-      end
-      @attribute_names = names && names.split('_and_')
-    end
-
-    attr_reader :finder, :attribute_names, :instantiator
-
-    def finder?
-      !@finder.nil? && @instantiator.nil?
-    end
-
-    def instantiator?
-      @finder == :first && !@instantiator.nil?
-    end
-
-    def bang?
-      @bang
-    end
-  end
-end
@@ -1,25 +0,0 @@
-module ActiveRecord
-  class DynamicScopeMatch
-    def self.match(method)
-      ds_match = self.new(method)
-      ds_match.scope ? ds_match : nil
-    end
-
-    def initialize(method)
-      @scope = true
-      case method.to_s
-      when /^scoped_by_([_a-zA-Z]\w*)$/
-        names = $1
-      else
-        @scope = nil
-      end
-      @attribute_names = names && names.split('_and_')
-    end
-
-    attr_reader :scope, :attribute_names
-
-    def scope?
-      !@scope.nil?
-    end
-  end
-end
@@ -1,996 +0,0 @@
-require 'erb'
-require 'yaml'
-require 'csv'
-require 'zlib'
-require 'active_support/dependencies'
-require 'active_support/test_case'
-
-if RUBY_VERSION < '1.9'
-  module YAML #:nodoc:
-    class Omap #:nodoc:
-      def keys;   map { |k, v| k } end
-      def values; map { |k, v| v } end
-    end
-  end
-end
-
-if defined? ActiveRecord
-  class FixtureClassNotFound < ActiveRecord::ActiveRecordError #:nodoc:
-  end
-else
-  class FixtureClassNotFound < StandardError #:nodoc:
-  end
-end
-
-# Fixtures are a way of organizing data that you want to test against; in short, sample data.
-#
-# = Fixture formats
-#
-# Fixtures come in 3 flavors:
-#
-#   1.  YAML fixtures
-#   2.  CSV fixtures
-#   3.  Single-file fixtures
-#
-# == YAML fixtures
-#
-# This type of fixture is in YAML format and the preferred default. YAML is a file format which describes data structures
-# in a non-verbose, human-readable format. It ships with Ruby 1.8.1+.
-#
-# Unlike single-file fixtures, YAML fixtures are stored in a single file per model, which are placed in the directory appointed
-# by <tt>ActiveSupport::TestCase.fixture_path=(path)</tt> (this is automatically configured for Rails, so you can just
-# put your files in <tt><your-rails-app>/test/fixtures/</tt>). The fixture file ends with the <tt>.yml</tt> file extension (Rails example:
-# <tt><your-rails-app>/test/fixtures/web_sites.yml</tt>). The format of a YAML fixture file looks like this:
-#
-#   rubyonrails:
-#     id: 1
-#     name: Ruby on Rails
-#     url: http://www.rubyonrails.org
-#
-#   google:
-#     id: 2
-#     name: Google
-#     url: http://www.google.com
-#
-# This YAML fixture file includes two fixtures.  Each YAML fixture (ie. record) is given a name and is followed by an
-# indented list of key/value pairs in the "key: value" format.  Records are separated by a blank line for your viewing
-# pleasure.
-#
-# Note that YAML fixtures are unordered. If you want ordered fixtures, use the omap YAML type.  See http://yaml.org/type/omap.html
-# for the specification.  You will need ordered fixtures when you have foreign key constraints on keys in the same table.
-# This is commonly needed for tree structures.  Example:
-#
-#    --- !omap
-#    - parent:
-#        id:         1
-#        parent_id:  NULL
-#        title:      Parent
-#    - child:
-#        id:         2
-#        parent_id:  1
-#        title:      Child
-#
-# == CSV fixtures
-#
-# Fixtures can also be kept in the Comma Separated Value (CSV) format. Akin to YAML fixtures, CSV fixtures are stored
-# in a single file, but instead end with the <tt>.csv</tt> file extension
-# (Rails example: <tt><your-rails-app>/test/fixtures/web_sites.csv</tt>).
-#
-# The format of this type of fixture file is much more compact than the others, but also a little harder to read by us
-# humans.  The first line of the CSV file is a comma-separated list of field names.  The rest of the file is then comprised
-# of the actual data (1 per line).  Here's an example:
-#
-#   id, name, url
-#   1, Ruby On Rails, http://www.rubyonrails.org
-#   2, Google, http://www.google.com
-#
-# Should you have a piece of data with a comma character in it, you can place double quotes around that value.  If you
-# need to use a double quote character, you must escape it with another double quote.
-#
-# Another unique attribute of the CSV fixture is that it has *no* fixture name like the other two formats.  Instead, the
-# fixture names are automatically generated by deriving the class name of the fixture file and adding an incrementing
-# number to the end.  In our example, the 1st fixture would be called "web_site_1" and the 2nd one would be called
-# "web_site_2".
-#
-# Most databases and spreadsheets support exporting to CSV format, so this is a great format for you to choose if you
-# have existing data somewhere already.
-#
-# == Single-file fixtures
-#
-# This type of fixture was the original format for Active Record that has since been deprecated in favor of the YAML and CSV formats.
-# Fixtures for this format are created by placing text files in a sub-directory (with the name of the model) to the directory
-# appointed by <tt>ActiveSupport::TestCase.fixture_path=(path)</tt> (this is automatically configured for Rails, so you can just
-# put your files in <tt><your-rails-app>/test/fixtures/<your-model-name>/</tt> --
-# like <tt><your-rails-app>/test/fixtures/web_sites/</tt> for the WebSite model).
-#
-# Each text file placed in this directory represents a "record".  Usually these types of fixtures are named without
-# extensions, but if you are on a Windows machine, you might consider adding <tt>.txt</tt> as the extension.  Here's what the
-# above example might look like:
-#
-#   web_sites/google
-#   web_sites/yahoo.txt
-#   web_sites/ruby-on-rails
-#
-# The file format of a standard fixture is simple.  Each line is a property (or column in db speak) and has the syntax
-# of "name => value".  Here's an example of the ruby-on-rails fixture above:
-#
-#   id => 1
-#   name => Ruby on Rails
-#   url => http://www.rubyonrails.org
-#
-# = Using fixtures in testcases
-#
-# Since fixtures are a testing construct, we use them in our unit and functional tests.  There are two ways to use the
-# fixtures, but first let's take a look at a sample unit test:
-#
-#   require 'test_helper'
-#
-#   class WebSiteTest < ActiveSupport::TestCase
-#     test "web_site_count" do
-#       assert_equal 2, WebSite.count
-#     end
-#   end
-#
-# By default, the <tt>test_helper module</tt> will load all of your fixtures into your test database, so this test will succeed.
-# The testing environment will automatically load the all fixtures into the database before each test.
-# To ensure consistent data, the environment deletes the fixtures before running the load.
-#
-# In addition to being available in the database, the fixture's data may also be accessed by
-# using a special dynamic method, which has the same name as the model, and accepts the
-# name of the fixture to instantiate:
-#
-#   test "find" do
-#     assert_equal "Ruby on Rails", web_sites(:rubyonrails).name
-#   end
-#
-# Alternatively, you may enable auto-instantiation of the fixture data. For instance, take the following tests:
-#
-#   test "find_alt_method_1" do
-#     assert_equal "Ruby on Rails", @web_sites['rubyonrails']['name']
-#   end
-#
-#   test "find_alt_method_2" do
-#     assert_equal "Ruby on Rails", @rubyonrails.news
-#   end
-#
-# In order to use these methods to access fixtured data within your testcases, you must specify one of the
-# following in your <tt>ActiveSupport::TestCase</tt>-derived class:
-#
-# - to fully enable instantiated fixtures (enable alternate methods #1 and #2 above)
-#     self.use_instantiated_fixtures = true
-#
-# - create only the hash for the fixtures, do not 'find' each instance (enable alternate method #1 only)
-#     self.use_instantiated_fixtures = :no_instances
-#
-# Using either of these alternate methods incurs a performance hit, as the fixtured data must be fully
-# traversed in the database to create the fixture hash and/or instance variables. This is expensive for
-# large sets of fixtured data.
-#
-# = Dynamic fixtures with ERb
-#
-# Some times you don't care about the content of the fixtures as much as you care about the volume. In these cases, you can
-# mix ERb in with your YAML or CSV fixtures to create a bunch of fixtures for load testing, like:
-#
-#   <% for i in 1..1000 %>
-#   fix_<%= i %>:
-#     id: <%= i %>
-#     name: guy_<%= 1 %>
-#   <% end %>
-#
-# This will create 1000 very simple YAML fixtures.
-#
-# Using ERb, you can also inject dynamic values into your fixtures with inserts like <tt><%= Date.today.strftime("%Y-%m-%d") %></tt>.
-# This is however a feature to be used with some caution. The point of fixtures are that they're stable units of predictable
-# sample data. If you feel that you need to inject dynamic values, then perhaps you should reexamine whether your application
-# is properly testable. Hence, dynamic values in fixtures are to be considered a code smell.
-#
-# = Transactional fixtures
-#
-# TestCases can use begin+rollback to isolate their changes to the database instead of having to delete+insert for every test case.
-#
-#   class FooTest < ActiveSupport::TestCase
-#     self.use_transactional_fixtures = true
-#
-#     test "godzilla" do
-#       assert !Foo.find(:all).empty?
-#       Foo.destroy_all
-#       assert Foo.find(:all).empty?
-#     end
-#
-#     test "godzilla aftermath" do
-#       assert !Foo.find(:all).empty?
-#     end
-#   end
-#
-# If you preload your test database with all fixture data (probably in the Rakefile task) and use transactional fixtures,
-# then you may omit all fixtures declarations in your test cases since all the data's already there and every case rolls back its changes.
-#
-# In order to use instantiated fixtures with preloaded data, set +self.pre_loaded_fixtures+ to true. This will provide
-# access to fixture data for every table that has been loaded through fixtures (depending on the value of +use_instantiated_fixtures+)
-#
-# When *not* to use transactional fixtures:
-#
-# 1. You're testing whether a transaction works correctly. Nested transactions don't commit until all parent transactions commit,
-#    particularly, the fixtures transaction which is begun in setup and rolled back in teardown. Thus, you won't be able to verify
-#    the results of your transaction until Active Record supports nested transactions or savepoints (in progress).
-# 2. Your database does not support transactions. Every Active Record database supports transactions except MySQL MyISAM.
-#    Use InnoDB, MaxDB, or NDB instead.
-#
-# = Advanced YAML Fixtures
-#
-# YAML fixtures that don't specify an ID get some extra features:
-#
-# * Stable, autogenerated IDs
-# * Label references for associations (belongs_to, has_one, has_many)
-# * HABTM associations as inline lists
-# * Autofilled timestamp columns
-# * Fixture label interpolation
-# * Support for YAML defaults
-#
-# == Stable, autogenerated IDs
-#
-# Here, have a monkey fixture:
-#
-#   george:
-#     id: 1
-#     name: George the Monkey
-#
-#   reginald:
-#     id: 2
-#     name: Reginald the Pirate
-#
-# Each of these fixtures has two unique identifiers: one for the database
-# and one for the humans. Why don't we generate the primary key instead?
-# Hashing each fixture's label yields a consistent ID:
-#
-#   george: # generated id: 503576764
-#     name: George the Monkey
-#
-#   reginald: # generated id: 324201669
-#     name: Reginald the Pirate
-#
-# Active Record looks at the fixture's model class, discovers the correct
-# primary key, and generates it right before inserting the fixture
-# into the database.
-#
-# The generated ID for a given label is constant, so we can discover
-# any fixture's ID without loading anything, as long as we know the label.
-#
-# == Label references for associations (belongs_to, has_one, has_many)
-#
-# Specifying foreign keys in fixtures can be very fragile, not to
-# mention difficult to read. Since Active Record can figure out the ID of
-# any fixture from its label, you can specify FK's by label instead of ID.
-#
-# === belongs_to
-#
-# Let's break out some more monkeys and pirates.
-#
-#   ### in pirates.yml
-#
-#   reginald:
-#     id: 1
-#     name: Reginald the Pirate
-#     monkey_id: 1
-#
-#   ### in monkeys.yml
-#
-#   george:
-#     id: 1
-#     name: George the Monkey
-#     pirate_id: 1
-#
-# Add a few more monkeys and pirates and break this into multiple files,
-# and it gets pretty hard to keep track of what's going on. Let's
-# use labels instead of IDs:
-#
-#   ### in pirates.yml
-#
-#   reginald:
-#     name: Reginald the Pirate
-#     monkey: george
-#
-#   ### in monkeys.yml
-#
-#   george:
-#     name: George the Monkey
-#     pirate: reginald
-#
-# Pow! All is made clear. Active Record reflects on the fixture's model class,
-# finds all the +belongs_to+ associations, and allows you to specify
-# a target *label* for the *association* (monkey: george) rather than
-# a target *id* for the *FK* (<tt>monkey_id: 1</tt>).
-#
-# ==== Polymorphic belongs_to
-#
-# Supporting polymorphic relationships is a little bit more complicated, since
-# Active Record needs to know what type your association is pointing at. Something
-# like this should look familiar:
-#
-#   ### in fruit.rb
-#
-#   belongs_to :eater, :polymorphic => true
-#
-#   ### in fruits.yml
-#
-#   apple:
-#     id: 1
-#     name: apple
-#     eater_id: 1
-#     eater_type: Monkey
-#
-# Can we do better? You bet!
-#
-#   apple:
-#     eater: george (Monkey)
-#
-# Just provide the polymorphic target type and Active Record will take care of the rest.
-#
-# === has_and_belongs_to_many
-#
-# Time to give our monkey some fruit.
-#
-#   ### in monkeys.yml
-#
-#   george:
-#     id: 1
-#     name: George the Monkey
-#     pirate_id: 1
-#
-#   ### in fruits.yml
-#
-#   apple:
-#     id: 1
-#     name: apple
-#
-#   orange:
-#     id: 2
-#     name: orange
-#
-#   grape:
-#     id: 3
-#     name: grape
-#
-#   ### in fruits_monkeys.yml
-#
-#   apple_george:
-#     fruit_id: 1
-#     monkey_id: 1
-#
-#   orange_george:
-#     fruit_id: 2
-#     monkey_id: 1
-#
-#   grape_george:
-#     fruit_id: 3
-#     monkey_id: 1
-#
-# Let's make the HABTM fixture go away.
-#
-#   ### in monkeys.yml
-#
-#   george:
-#     name: George the Monkey
-#     pirate: reginald
-#     fruits: apple, orange, grape
-#
-#   ### in fruits.yml
-#
-#   apple:
-#     name: apple
-#
-#   orange:
-#     name: orange
-#
-#   grape:
-#     name: grape
-#
-# Zap! No more fruits_monkeys.yml file. We've specified the list of fruits
-# on George's fixture, but we could've just as easily specified a list
-# of monkeys on each fruit. As with +belongs_to+, Active Record reflects on
-# the fixture's model class and discovers the +has_and_belongs_to_many+
-# associations.
-#
-# == Autofilled timestamp columns
-#
-# If your table/model specifies any of Active Record's
-# standard timestamp columns (+created_at+, +created_on+, +updated_at+, +updated_on+),
-# they will automatically be set to <tt>Time.now</tt>.
-#
-# If you've set specific values, they'll be left alone.
-#
-# == Fixture label interpolation
-#
-# The label of the current fixture is always available as a column value:
-#
-#   geeksomnia:
-#     name: Geeksomnia's Account
-#     subdomain: $LABEL
-#
-# Also, sometimes (like when porting older join table fixtures) you'll need
-# to be able to get ahold of the identifier for a given label. ERB
-# to the rescue:
-#
-#   george_reginald:
-#     monkey_id: <%= Fixtures.identify(:reginald) %>
-#     pirate_id: <%= Fixtures.identify(:george) %>
-#
-# == Support for YAML defaults
-#
-# You probably already know how to use YAML to set and reuse defaults in
-# your <tt>database.yml</tt> file. You can use the same technique in your fixtures:
-#
-#   DEFAULTS: &DEFAULTS
-#     created_on: <%= 3.weeks.ago.to_s(:db) %>
-#
-#   first:
-#     name: Smurf
-#     <<: *DEFAULTS
-#
-#   second:
-#     name: Fraggle
-#     <<: *DEFAULTS
-#
-# Any fixture labeled "DEFAULTS" is safely ignored.
-
-class Fixtures < (RUBY_VERSION < '1.9' ? YAML::Omap : Hash)
-  MAX_ID = 2 ** 30 - 1
-  DEFAULT_FILTER_RE = /\.ya?ml$/
-
-  @@all_cached_fixtures = {}
-
-  def self.reset_cache(connection = nil)
-    connection ||= ActiveRecord::Base.connection
-    @@all_cached_fixtures[connection.object_id] = {}
-  end
-
-  def self.cache_for_connection(connection)
-    @@all_cached_fixtures[connection.object_id] ||= {}
-    @@all_cached_fixtures[connection.object_id]
-  end
-
-  def self.fixture_is_cached?(connection, table_name)
-    cache_for_connection(connection)[table_name]
-  end
-
-  def self.cached_fixtures(connection, keys_to_fetch = nil)
-    if keys_to_fetch
-      fixtures = cache_for_connection(connection).values_at(*keys_to_fetch)
-    else
-      fixtures = cache_for_connection(connection).values
-    end
-    fixtures.size > 1 ? fixtures : fixtures.first
-  end
-
-  def self.cache_fixtures(connection, fixtures_map)
-    cache_for_connection(connection).update(fixtures_map)
-  end
-
-  def self.instantiate_fixtures(object, table_name, fixtures, load_instances = true)
-    object.instance_variable_set "@#{table_name.to_s.gsub('.','_')}", fixtures
-    if load_instances
-      ActiveRecord::Base.silence do
-        fixtures.each do |name, fixture|
-          begin
-            object.instance_variable_set "@#{name}", fixture.find
-          rescue FixtureClassNotFound
-            nil
-          end
-        end
-      end
-    end
-  end
-
-  def self.instantiate_all_loaded_fixtures(object, load_instances = true)
-    all_loaded_fixtures.each do |table_name, fixtures|
-      Fixtures.instantiate_fixtures(object, table_name, fixtures, load_instances)
-    end
-  end
-
-  cattr_accessor :all_loaded_fixtures
-  self.all_loaded_fixtures = {}
-
-  def self.create_fixtures(fixtures_directory, table_names, class_names = {})
-    table_names = [table_names].flatten.map { |n| n.to_s }
-    connection  = block_given? ? yield : ActiveRecord::Base.connection
-
-    table_names_to_fetch = table_names.reject { |table_name| fixture_is_cached?(connection, table_name) }
-
-    unless table_names_to_fetch.empty?
-      ActiveRecord::Base.silence do
-        connection.disable_referential_integrity do
-          fixtures_map = {}
-
-          fixtures = table_names_to_fetch.map do |table_name|
-            fixtures_map[table_name] = Fixtures.new(connection, File.split(table_name.to_s).last, class_names[table_name.to_sym], File.join(fixtures_directory, table_name.to_s))
-          end
-
-          all_loaded_fixtures.update(fixtures_map)
-
-          connection.transaction(:requires_new => true) do
-            fixtures.reverse.each { |fixture| fixture.delete_existing_fixtures }
-            fixtures.each { |fixture| fixture.insert_fixtures }
-
-            # Cap primary key sequences to max(pk).
-            if connection.respond_to?(:reset_pk_sequence!)
-              table_names.each do |table_name|
-                connection.reset_pk_sequence!(table_name)
-              end
-            end
-          end
-
-          cache_fixtures(connection, fixtures_map)
-        end
-      end
-    end
-    cached_fixtures(connection, table_names)
-  end
-
-  # Returns a consistent, platform-independent identifier for +label+.
-  # Identifiers are positive integers less than 2^32.
-  def self.identify(label)
-    Zlib.crc32(label.to_s) % MAX_ID
-  end
-
-  attr_reader :table_name, :name
-
-  def initialize(connection, table_name, class_name, fixture_path, file_filter = DEFAULT_FILTER_RE)
-    @connection, @table_name, @fixture_path, @file_filter = connection, table_name, fixture_path, file_filter
-    @name = table_name # preserve fixture base name
-    @class_name = class_name ||
-                  (ActiveRecord::Base.pluralize_table_names ? @table_name.singularize.camelize : @table_name.camelize)
-    @table_name = "#{ActiveRecord::Base.table_name_prefix}#{@table_name}#{ActiveRecord::Base.table_name_suffix}"
-    @table_name = class_name.table_name if class_name.respond_to?(:table_name)
-    @connection = class_name.connection if class_name.respond_to?(:connection)
-    read_fixture_files
-  end
-
-  def delete_existing_fixtures
-    @connection.delete "DELETE FROM #{@connection.quote_table_name(table_name)}", 'Fixture Delete'
-  end
-
-  def insert_fixtures
-    now = ActiveRecord::Base.default_timezone == :utc ? Time.now.utc : Time.now
-    now = now.to_s(:db)
-
-    # allow a standard key to be used for doing defaults in YAML
-    if is_a?(Hash)
-      delete('DEFAULTS')
-    else
-      delete(assoc('DEFAULTS'))
-    end
-
-    # track any join tables we need to insert later
-    habtm_fixtures = Hash.new do |h, habtm|
-      h[habtm] = HabtmFixtures.new(@connection, habtm.options[:join_table], nil, nil)
-    end
-
-    each do |label, fixture|
-      row = fixture.to_hash
-
-      if model_class && model_class < ActiveRecord::Base
-        # fill in timestamp columns if they aren't specified and the model is set to record_timestamps
-        if model_class.record_timestamps
-          timestamp_column_names.each do |name|
-            row[name] = now unless row.key?(name)
-          end
-        end
-
-        # interpolate the fixture label
-        row.each do |key, value|
-          row[key] = label if value == "$LABEL"
-        end
-
-        # generate a primary key if necessary
-        if has_primary_key_column? && !row.include?(primary_key_name)
-          row[primary_key_name] = Fixtures.identify(label)
-        end
-
-        # If STI is used, find the correct subclass for association reflection
-        reflection_class =
-          if row.include?(inheritance_column_name)
-            row[inheritance_column_name].constantize rescue model_class
-          else
-            model_class
-          end
-
-        reflection_class.reflect_on_all_associations.each do |association|
-          case association.macro
-          when :belongs_to
-            # Do not replace association name with association foreign key if they are named the same
-            fk_name = (association.options[:foreign_key] || "#{association.name}_id").to_s
-
-            if association.name.to_s != fk_name && value = row.delete(association.name.to_s)
-              if association.options[:polymorphic]
-                if value.sub!(/\s*\(([^\)]*)\)\s*$/, "")
-                  target_type = $1
-                  target_type_name = (association.options[:foreign_type] || "#{association.name}_type").to_s
-
-                  # support polymorphic belongs_to as "label (Type)"
-                  row[target_type_name] = target_type
-                end
-              end
-
-              row[fk_name] = Fixtures.identify(value)
-            end
-          when :has_and_belongs_to_many
-            if (targets = row.delete(association.name.to_s))
-              targets = targets.is_a?(Array) ? targets : targets.split(/\s*,\s*/)
-              join_fixtures = habtm_fixtures[association]
-
-              targets.each do |target|
-                join_fixtures["#{label}_#{target}"] = Fixture.new(
-                  { association.primary_key_name => row[primary_key_name],
-                    association.association_foreign_key => Fixtures.identify(target) },
-                  nil, @connection)
-              end
-            end
-          end
-        end
-      end
-
-      @connection.insert_fixture(fixture, @table_name)
-    end
-
-    # insert any HABTM join tables we discovered
-    habtm_fixtures.values.each do |fixture|
-      fixture.delete_existing_fixtures
-      fixture.insert_fixtures
-    end
-  end
-
-  private
-    class HabtmFixtures < ::Fixtures #:nodoc:
-      def read_fixture_files; end
-    end
-
-    def model_class
-      unless defined?(@model_class)
-        @model_class =
-          if @class_name.nil? || @class_name.is_a?(Class)
-            @class_name
-          else
-            @class_name.constantize rescue nil
-          end
-      end
-
-      @model_class
-    end
-
-    def primary_key_name
-      @primary_key_name ||= model_class && model_class.primary_key
-    end
-
-    def has_primary_key_column?
-      @has_primary_key_column ||= model_class && primary_key_name &&
-        model_class.columns.find { |c| c.name == primary_key_name }
-    end
-
-    def timestamp_column_names
-      @timestamp_column_names ||= %w(created_at created_on updated_at updated_on).select do |name|
-        column_names.include?(name)
-      end
-    end
-
-    def inheritance_column_name
-      @inheritance_column_name ||= model_class && model_class.inheritance_column
-    end
-
-    def column_names
-      @column_names ||= @connection.columns(@table_name).collect(&:name)
-    end
-
-    def read_fixture_files
-      if File.file?(yaml_file_path)
-        read_yaml_fixture_files
-      elsif File.file?(csv_file_path)
-        read_csv_fixture_files
-      end
-    end
-
-    def read_yaml_fixture_files
-      yaml_string = ""
-      Dir["#{@fixture_path}/**/*.yml"].select { |f| test(?f, f) }.each do |subfixture_path|
-        yaml_string << IO.read(subfixture_path)
-      end
-      yaml_string << IO.read(yaml_file_path)
-
-      if yaml = parse_yaml_string(yaml_string)
-        # If the file is an ordered map, extract its children.
-        yaml_value =
-          if yaml.respond_to?(:type_id) && yaml.respond_to?(:value)
-            yaml.value
-          else
-            [yaml]
-          end
-
-        yaml_value.each do |fixture|
-          raise Fixture::FormatError, "Bad data for #{@class_name} fixture named #{fixture}" unless fixture.respond_to?(:each)
-          fixture.each do |name, data|
-            unless data
-              raise Fixture::FormatError, "Bad data for #{@class_name} fixture named #{name} (nil)"
-            end
-
-            self[name] = Fixture.new(data, model_class, @connection)
-          end
-        end
-      end
-    end
-
-    def read_csv_fixture_files
-      reader = CSV.parse(erb_render(IO.read(csv_file_path)))
-      header = reader.shift
-      i = 0
-      reader.each do |row|
-        data = {}
-        row.each_with_index { |cell, j| data[header[j].to_s.strip] = cell.to_s.strip }
-        self["#{@class_name.to_s.underscore}_#{i+=1}"] = Fixture.new(data, model_class, @connection)
-      end
-    end
-
-    def yaml_file_path
-      "#{@fixture_path}.yml"
-    end
-
-    def csv_file_path
-      @fixture_path + ".csv"
-    end
-
-    def yaml_fixtures_key(path)
-      File.basename(@fixture_path).split(".").first
-    end
-
-    def parse_yaml_string(fixture_content)
-      YAML::load(erb_render(fixture_content))
-    rescue => error
-      raise Fixture::FormatError, "a YAML error occurred parsing #{yaml_file_path}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n  #{error.class}: #{error}"
-    end
-
-    def erb_render(fixture_content)
-      ERB.new(fixture_content).result
-    end
-end
-
-class Fixture #:nodoc:
-  include Enumerable
-
-  class FixtureError < StandardError #:nodoc:
-  end
-
-  class FormatError < FixtureError #:nodoc:
-  end
-
-  attr_reader :model_class
-
-  def initialize(fixture, model_class, connection = ActiveRecord::Base.connection)
-    @connection = connection
-    @fixture = fixture
-    @model_class = model_class.is_a?(Class) ? model_class : model_class.constantize rescue nil
-  end
-
-  def class_name
-    @model_class.name if @model_class
-  end
-
-  def each
-    @fixture.each { |item| yield item }
-  end
-
-  def [](key)
-    @fixture[key]
-  end
-
-  def to_hash
-    @fixture
-  end
-
-  def key_list
-    columns = @fixture.keys.collect{ |column_name| @connection.quote_column_name(column_name) }
-    columns.join(", ")
-  end
-
-  def value_list
-    list = @fixture.inject([]) do |fixtures, (key, value)|
-      col = model_class.columns_hash[key] if model_class.respond_to?(:ancestors) && model_class.ancestors.include?(ActiveRecord::Base)
-      fixtures << @connection.quote(value, col).gsub('[^\]\\n', "\n").gsub('[^\]\\r', "\r")
-    end
-    list * ', '
-  end
-
-  def find
-    if model_class
-      model_class.find(self[model_class.primary_key])
-    else
-      raise FixtureClassNotFound, "No class attached to find."
-    end
-  end
-end
-
-module ActiveRecord
-  module TestFixtures
-    def self.included(base)
-      base.class_eval do
-        setup :setup_fixtures
-        teardown :teardown_fixtures
-
-        superclass_delegating_accessor :fixture_path
-        superclass_delegating_accessor :fixture_table_names
-        superclass_delegating_accessor :fixture_class_names
-        superclass_delegating_accessor :use_transactional_fixtures
-        superclass_delegating_accessor :use_instantiated_fixtures   # true, false, or :no_instances
-        superclass_delegating_accessor :pre_loaded_fixtures
-
-        self.fixture_table_names = []
-        self.use_transactional_fixtures = false
-        self.use_instantiated_fixtures = true
-        self.pre_loaded_fixtures = false
-
-        self.fixture_class_names = {}
-      end
-
-      base.extend ClassMethods
-    end
-
-    module ClassMethods
-      def set_fixture_class(class_names = {})
-        self.fixture_class_names = self.fixture_class_names.merge(class_names)
-      end
-
-      def fixtures(*table_names)
-        if table_names.first == :all
-          table_names = Dir["#{fixture_path}/*.yml"] + Dir["#{fixture_path}/*.csv"]
-          table_names.map! { |f| File.basename(f).split('.')[0..-2].join('.') }
-        else
-          table_names = table_names.flatten.map { |n| n.to_s }
-        end
-
-        self.fixture_table_names |= table_names
-        require_fixture_classes(table_names)
-        setup_fixture_accessors(table_names)
-      end
-
-      def try_to_load_dependency(file_name)
-        require_dependency file_name
-      rescue LoadError => e
-        # Let's hope the developer has included it himself
-
-        # Let's warn in case this is a subdependency, otherwise
-        # subdependency error messages are totally cryptic
-        if ActiveRecord::Base.logger
-          ActiveRecord::Base.logger.warn("Unable to load #{file_name}, underlying cause #{e.message} \n\n #{e.backtrace.join("\n")}")
-        end
-      end
-
-      def require_fixture_classes(table_names = nil)
-        (table_names || fixture_table_names).each do |table_name|
-          file_name = table_name.to_s
-          file_name = file_name.singularize if ActiveRecord::Base.pluralize_table_names
-          try_to_load_dependency(file_name)
-        end
-      end
-
-      def setup_fixture_accessors(table_names = nil)
-        table_names = [table_names] if table_names && !table_names.respond_to?(:each)
-        (table_names || fixture_table_names).each do |table_name|
-          table_name = table_name.to_s.tr('.', '_')
-
-          define_method(table_name) do |*fixtures|
-            force_reload = fixtures.pop if fixtures.last == true || fixtures.last == :reload
-
-            @fixture_cache[table_name] ||= {}
-
-            instances = fixtures.map do |fixture|
-              @fixture_cache[table_name].delete(fixture) if force_reload
-
-              if @loaded_fixtures[table_name][fixture.to_s]
-                @fixture_cache[table_name][fixture] ||= @loaded_fixtures[table_name][fixture.to_s].find
-              else
-                raise StandardError, "No fixture with name '#{fixture}' found for table '#{table_name}'"
-              end
-            end
-
-            instances.size == 1 ? instances.first : instances
-          end
-        end
-      end
-
-      def uses_transaction(*methods)
-        @uses_transaction = [] unless defined?(@uses_transaction)
-        @uses_transaction.concat methods.map(&:to_s)
-      end
-
-      def uses_transaction?(method)
-        @uses_transaction = [] unless defined?(@uses_transaction)
-        @uses_transaction.include?(method.to_s)
-      end
-    end
-
-    def run_in_transaction?
-      use_transactional_fixtures &&
-        !self.class.uses_transaction?(method_name)
-    end
-
-    def setup_fixtures
-      return unless defined?(ActiveRecord) && !ActiveRecord::Base.configurations.blank?
-
-      if pre_loaded_fixtures && !use_transactional_fixtures
-        raise RuntimeError, 'pre_loaded_fixtures requires use_transactional_fixtures'
-      end
-
-      @fixture_cache = {}
-      @@already_loaded_fixtures ||= {}
-
-      # Load fixtures once and begin transaction.
-      if run_in_transaction?
-        if @@already_loaded_fixtures[self.class]
-          @loaded_fixtures = @@already_loaded_fixtures[self.class]
-        else
-          load_fixtures
-          @@already_loaded_fixtures[self.class] = @loaded_fixtures
-        end
-        ActiveRecord::Base.connection.increment_open_transactions
-        ActiveRecord::Base.connection.transaction_joinable = false
-        ActiveRecord::Base.connection.begin_db_transaction
-      # Load fixtures for every test.
-      else
-        Fixtures.reset_cache
-        @@already_loaded_fixtures[self.class] = nil
-        load_fixtures
-      end
-
-      # Instantiate fixtures for every test if requested.
-      instantiate_fixtures if use_instantiated_fixtures
-    end
-
-    def teardown_fixtures
-      return unless defined?(ActiveRecord) && !ActiveRecord::Base.configurations.blank?
-
-      unless run_in_transaction?
-        Fixtures.reset_cache
-      end
-
-      # Rollback changes if a transaction is active.
-      if run_in_transaction? && ActiveRecord::Base.connection.open_transactions != 0
-        ActiveRecord::Base.connection.rollback_db_transaction
-        ActiveRecord::Base.connection.decrement_open_transactions
-      end
-      ActiveRecord::Base.clear_active_connections!
-    end
-
-    private
-      def load_fixtures
-        @loaded_fixtures = {}
-        fixtures = Fixtures.create_fixtures(fixture_path, fixture_table_names, fixture_class_names)
-        unless fixtures.nil?
-          if fixtures.instance_of?(Fixtures)
-            @loaded_fixtures[fixtures.name] = fixtures
-          else
-            fixtures.each { |f| @loaded_fixtures[f.name] = f }
-          end
-        end
-      end
-
-      # for pre_loaded_fixtures, only require the classes once. huge speed improvement
-      @@required_fixture_classes = false
-
-      def instantiate_fixtures
-        if pre_loaded_fixtures
-          raise RuntimeError, 'Load fixtures before instantiating them.' if Fixtures.all_loaded_fixtures.empty?
-          unless @@required_fixture_classes
-            self.class.require_fixture_classes Fixtures.all_loaded_fixtures.keys
-            @@required_fixture_classes = true
-          end
-          Fixtures.instantiate_all_loaded_fixtures(self, load_instances?)
-        else
-          raise RuntimeError, 'Load fixtures before instantiating them.' if @loaded_fixtures.nil?
-          @loaded_fixtures.each do |table_name, fixtures|
-            Fixtures.instantiate_fixtures(self, table_name, fixtures, load_instances?)
-          end
-        end
-      end
-
-      def load_instances?
-        use_instantiated_fixtures != :no_instances
-      end
-  end
-end
@@ -1,26 +0,0 @@
-# Deprecates the use of the former message interpolation syntax in activerecord
-# as in "must have %d characters". The new syntax uses explicit variable names
-# as in "{{value}} must have {{count}} characters".
-
-require 'i18n/backend/simple'
-module I18n
-  module Backend
-    class Simple
-      DEPRECATED_INTERPOLATORS = { '%d' => '{{count}}', '%s' => '{{value}}' }
-
-      protected
-        def interpolate_with_deprecated_syntax(locale, string, values = {})
-          return string unless string.is_a?(String) && !values.empty?
-
-          string = string.gsub(/%d|%s/) do |s|
-            instead = DEPRECATED_INTERPOLATORS[s]
-            ActiveSupport::Deprecation.warn "using #{s} in messages is deprecated; use #{instead} instead."
-            instead
-          end
-
-          interpolate_without_deprecated_syntax(locale, string, values)
-        end
-        alias_method_chain :interpolate, :deprecated_syntax
-    end
-  end
-end
@@ -1,58 +0,0 @@
-en:
-  activerecord:
-    errors:
-      # The values :model, :attribute and :value are always available for interpolation
-      # The value :count is available when applicable. Can be used for pluralization.
-      messages:
-        inclusion: "is not included in the list"
-        exclusion: "is reserved"
-        invalid: "is invalid"
-        confirmation: "doesn't match confirmation"
-        accepted: "must be accepted"
-        empty: "can't be empty"
-        blank: "can't be blank"
-        too_long: "is too long (maximum is %{count} characters)"
-        too_short: "is too short (minimum is %{count} characters)"
-        wrong_length: "is the wrong length (should be %{count} characters)"
-        taken: "has already been taken"
-        not_a_number: "is not a number"
-        greater_than: "must be greater than %{count}"
-        greater_than_or_equal_to: "must be greater than or equal to %{count}"
-        equal_to: "must be equal to %{count}"
-        less_than: "must be less than %{count}"
-        less_than_or_equal_to: "must be less than or equal to %{count}"
-        odd: "must be odd"
-        even: "must be even"
-        record_invalid: "Validation failed: %{errors}"
-        # Append your own errors here or at the model/attributes scope.
-
-      full_messages:
-        format: "%{attribute} %{message}"
-
-      # You can define own errors for models or model attributes.
-      # The values :model, :attribute and :value are always available for interpolation.
-      #
-      # For example,
-      #   models:
-      #     user:
-      #       blank: "This is a custom blank message for %{model}: %{attribute}"
-      #       attributes:
-      #         login:
-      #           blank: "This is a custom blank message for User login"
-      # Will define custom blank validation message for User model and 
-      # custom blank validation message for login attribute of User model.
-      #models:
-        
-    # Translate model names. Used in Model.human_name().
-    #models:
-      # For example,
-      #   user: "Dude"
-      # will translate User model name to "Dude"
-    
-    # Translate model attribute names. Used in Model.human_attribute_name(attribute).
-    #attributes:
-      # For example,
-      #   user:
-      #     login: "Handle"
-      # will translate User attribute "login" as "Handle"
-
@@ -1,148 +0,0 @@
-module ActiveRecord
-  module Locking
-    # == What is Optimistic Locking
-    #
-    # Optimistic locking allows multiple users to access the same record for edits, and assumes a minimum of
-    # conflicts with the data.  It does this by checking whether another process has made changes to a record since
-    # it was opened, an ActiveRecord::StaleObjectError is thrown if that has occurred and the update is ignored.
-    #
-    # Check out ActiveRecord::Locking::Pessimistic for an alternative.
-    #
-    # == Usage
-    #
-    # Active Records support optimistic locking if the field <tt>lock_version</tt> is present.  Each update to the
-    # record increments the lock_version column and the locking facilities ensure that records instantiated twice
-    # will let the last one saved raise a StaleObjectError if the first was also updated. Example:
-    #
-    #   p1 = Person.find(1)
-    #   p2 = Person.find(1)
-    #
-    #   p1.first_name = "Michael"
-    #   p1.save
-    #
-    #   p2.first_name = "should fail"
-    #   p2.save # Raises a ActiveRecord::StaleObjectError
-    #
-    # You're then responsible for dealing with the conflict by rescuing the exception and either rolling back, merging,
-    # or otherwise apply the business logic needed to resolve the conflict.
-    #
-    # You must ensure that your database schema defaults the lock_version column to 0.
-    #
-    # This behavior can be turned off by setting <tt>ActiveRecord::Base.lock_optimistically = false</tt>.
-    # To override the name of the lock_version column, invoke the <tt>set_locking_column</tt> method.
-    # This method uses the same syntax as <tt>set_table_name</tt>
-    module Optimistic
-      def self.included(base) #:nodoc:
-        base.extend ClassMethods
-
-        base.cattr_accessor :lock_optimistically, :instance_writer => false
-        base.lock_optimistically = true
-
-        base.alias_method_chain :update, :lock
-        base.alias_method_chain :attributes_from_column_definition, :lock
-
-        class << base
-          alias_method :locking_column=, :set_locking_column
-        end
-      end
-
-      def locking_enabled? #:nodoc:
-        self.class.locking_enabled?
-      end
-
-      private
-        def attributes_from_column_definition_with_lock
-          result = attributes_from_column_definition_without_lock
-
-          # If the locking column has no default value set,
-          # start the lock version at zero.  Note we can't use
-          # locking_enabled? at this point as @attributes may
-          # not have been initialized yet
-
-          if lock_optimistically && result.include?(self.class.locking_column)
-            result[self.class.locking_column] ||= 0
-          end
-
-          return result
-        end
-
-        def update_with_lock(attribute_names = @attributes.keys) #:nodoc:
-          return update_without_lock(attribute_names) unless locking_enabled?
-          return 0 if attribute_names.empty?
-
-          lock_col = self.class.locking_column
-          previous_value = send(lock_col).to_i
-          send(lock_col + '=', previous_value + 1)
-
-          attribute_names += [lock_col]
-          attribute_names.uniq!
-
-          begin
-            affected_rows = connection.update(<<-end_sql, "#{self.class.name} Update with optimistic locking")
-              UPDATE #{self.class.quoted_table_name}
-              SET #{quoted_comma_pair_list(connection, attributes_with_quotes(false, false, attribute_names))}
-              WHERE #{self.class.primary_key} = #{quote_value(id)}
-              AND #{self.class.quoted_locking_column} = #{quote_value(previous_value)}
-            end_sql
-
-            unless affected_rows == 1
-              raise ActiveRecord::StaleObjectError, "Attempted to update a stale object"
-            end
-
-            affected_rows
-
-          # If something went wrong, revert the version.
-          rescue Exception
-            send(lock_col + '=', previous_value)
-            raise
-          end
-        end
-
-      module ClassMethods
-        DEFAULT_LOCKING_COLUMN = 'lock_version'
-
-        def self.extended(base)
-          class <<base
-            alias_method_chain :update_counters, :lock
-          end
-        end
-
-        # Is optimistic locking enabled for this table? Returns true if the
-        # +lock_optimistically+ flag is set to true (which it is, by default)
-        # and the table includes the +locking_column+ column (defaults to
-        # +lock_version+).
-        def locking_enabled?
-          lock_optimistically && columns_hash[locking_column]
-        end
-
-        # Set the column to use for optimistic locking. Defaults to +lock_version+.
-        def set_locking_column(value = nil, &block)
-          define_attr_method :locking_column, value, &block
-          value
-        end
-
-        # The version column used for optimistic locking. Defaults to +lock_version+.
-        def locking_column
-          reset_locking_column
-        end
-
-        # Quote the column name used for optimistic locking.
-        def quoted_locking_column
-          connection.quote_column_name(locking_column)
-        end
-
-        # Reset the column used for optimistic locking back to the +lock_version+ default.
-        def reset_locking_column
-          set_locking_column DEFAULT_LOCKING_COLUMN
-        end
-
-        # Make sure the lock version column gets updated when counters are
-        # updated.
-        def update_counters_with_lock(id, counters)
-          counters = counters.merge(locking_column => 1) if locking_enabled?
-          update_counters_without_lock(id, counters)
-        end
-      end
-    end
-  end
-end
@@ -1,55 +0,0 @@
-module ActiveRecord
-  module Locking
-    # Locking::Pessimistic provides support for row-level locking using
-    # SELECT ... FOR UPDATE and other lock types.
-    #
-    # Pass <tt>:lock => true</tt> to ActiveRecord::Base.find to obtain an exclusive
-    # lock on the selected rows:
-    #   # select * from accounts where id=1 for update
-    #   Account.find(1, :lock => true)
-    #
-    # Pass <tt>:lock => 'some locking clause'</tt> to give a database-specific locking clause
-    # of your own such as 'LOCK IN SHARE MODE' or 'FOR UPDATE NOWAIT'.
-    #
-    # Example:
-    #   Account.transaction do
-    #     # select * from accounts where name = 'shugo' limit 1 for update
-    #     shugo = Account.find(:first, :conditions => "name = 'shugo'", :lock => true)
-    #     yuko = Account.find(:first, :conditions => "name = 'yuko'", :lock => true)
-    #     shugo.balance -= 100
-    #     shugo.save!
-    #     yuko.balance += 100
-    #     yuko.save!
-    #   end
-    #
-    # You can also use ActiveRecord::Base#lock! method to lock one record by id.
-    # This may be better if you don't need to lock every row. Example:
-    #   Account.transaction do
-    #     # select * from accounts where ...
-    #     accounts = Account.find(:all, :conditions => ...)
-    #     account1 = accounts.detect { |account| ... }
-    #     account2 = accounts.detect { |account| ... }
-    #     # select * from accounts where id=? for update
-    #     account1.lock!
-    #     account2.lock!
-    #     account1.balance -= 100
-    #     account1.save!
-    #     account2.balance += 100
-    #     account2.save!
-    #   end
-    #
-    # Database-specific information on row locking:
-    #   MySQL: http://dev.mysql.com/doc/refman/5.1/en/innodb-locking-reads.html
-    #   PostgreSQL: http://www.postgresql.org/docs/8.1/interactive/sql-select.html#SQL-FOR-UPDATE-SHARE
-    module Pessimistic
-      # Obtain a row lock on this record. Reloads the record to obtain the requested
-      # lock. Pass an SQL locking clause to append the end of the SELECT statement
-      # or pass true for "FOR UPDATE" (the default, an exclusive row lock).  Returns
-      # the locked record.
-      def lock!(lock = true)
-        reload(:lock => lock) unless new_record?
-        self
-      end
-    end
-  end
-end
@@ -1,566 +0,0 @@
-module ActiveRecord
-  class IrreversibleMigration < ActiveRecordError#:nodoc:
-  end
-
-  class DuplicateMigrationVersionError < ActiveRecordError#:nodoc:
-    def initialize(version)
-      super("Multiple migrations have the version number #{version}")
-    end
-  end
-
-  class DuplicateMigrationNameError < ActiveRecordError#:nodoc:
-    def initialize(name)
-      super("Multiple migrations have the name #{name}")
-    end
-  end
-
-  class UnknownMigrationVersionError < ActiveRecordError #:nodoc:
-    def initialize(version)
-      super("No migration with version number #{version}")
-    end
-  end
-
-  class IllegalMigrationNameError < ActiveRecordError#:nodoc:
-    def initialize(name)
-      super("Illegal name for migration file: #{name}\n\t(only lower case letters, numbers, and '_' allowed)")
-    end
-  end
-
-  # Migrations can manage the evolution of a schema used by several physical databases. It's a solution
-  # to the common problem of adding a field to make a new feature work in your local database, but being unsure of how to
-  # push that change to other developers and to the production server. With migrations, you can describe the transformations
-  # in self-contained classes that can be checked into version control systems and executed against another database that
-  # might be one, two, or five versions behind.
-  #
-  # Example of a simple migration:
-  #
-  #   class AddSsl < ActiveRecord::Migration
-  #     def self.up
-  #       add_column :accounts, :ssl_enabled, :boolean, :default => 1
-  #     end
-  #
-  #     def self.down
-  #       remove_column :accounts, :ssl_enabled
-  #     end
-  #   end
-  #
-  # This migration will add a boolean flag to the accounts table and remove it if you're backing out of the migration.
-  # It shows how all migrations have two class methods +up+ and +down+ that describes the transformations required to implement
-  # or remove the migration. These methods can consist of both the migration specific methods like add_column and remove_column,
-  # but may also contain regular Ruby code for generating data needed for the transformations.
-  #
-  # Example of a more complex migration that also needs to initialize data:
-  #
-  #   class AddSystemSettings < ActiveRecord::Migration
-  #     def self.up
-  #       create_table :system_settings do |t|
-  #         t.string  :name
-  #         t.string  :label
-  #         t.text  :value
-  #         t.string  :type
-  #         t.integer  :position
-  #       end
-  #
-  #       SystemSetting.create :name => "notice", :label => "Use notice?", :value => 1
-  #     end
-  #
-  #     def self.down
-  #       drop_table :system_settings
-  #     end
-  #   end
-  #
-  # This migration first adds the system_settings table, then creates the very first row in it using the Active Record model
-  # that relies on the table. It also uses the more advanced create_table syntax where you can specify a complete table schema
-  # in one block call.
-  #
-  # == Available transformations
-  #
-  # * <tt>create_table(name, options)</tt> Creates a table called +name+ and makes the table object available to a block
-  #   that can then add columns to it, following the same format as add_column. See example above. The options hash is for
-  #   fragments like "DEFAULT CHARSET=UTF-8" that are appended to the create table definition.
-  # * <tt>drop_table(name)</tt>: Drops the table called +name+.
-  # * <tt>rename_table(old_name, new_name)</tt>: Renames the table called +old_name+ to +new_name+.
-  # * <tt>add_column(table_name, column_name, type, options)</tt>: Adds a new column to the table called +table_name+
-  #   named +column_name+ specified to be one of the following types:
-  #   <tt>:string</tt>, <tt>:text</tt>, <tt>:integer</tt>, <tt>:float</tt>, <tt>:decimal</tt>, <tt>:datetime</tt>, <tt>:timestamp</tt>, <tt>:time</tt>,
-  #   <tt>:date</tt>, <tt>:binary</tt>, <tt>:boolean</tt>. A default value can be specified by passing an
-  #   +options+ hash like <tt>{ :default => 11 }</tt>. Other options include <tt>:limit</tt> and <tt>:null</tt> (e.g. <tt>{ :limit => 50, :null => false }</tt>)
-  #   -- see ActiveRecord::ConnectionAdapters::TableDefinition#column for details.
-  # * <tt>rename_column(table_name, column_name, new_column_name)</tt>: Renames a column but keeps the type and content.
-  # * <tt>change_column(table_name, column_name, type, options)</tt>:  Changes the column to a different type using the same
-  #   parameters as add_column.
-  # * <tt>remove_column(table_name, column_name)</tt>: Removes the column named +column_name+ from the table called +table_name+.
-  # * <tt>add_index(table_name, column_names, options)</tt>: Adds a new index with the name of the column. Other options include
-  #   <tt>:name</tt> and <tt>:unique</tt> (e.g. <tt>{ :name => "users_name_index", :unique => true }</tt>).
-  # * <tt>remove_index(table_name, index_name)</tt>: Removes the index specified by +index_name+.
-  #
-  # == Irreversible transformations
-  #
-  # Some transformations are destructive in a manner that cannot be reversed. Migrations of that kind should raise
-  # an <tt>ActiveRecord::IrreversibleMigration</tt> exception in their +down+ method.
-  #
-  # == Running migrations from within Rails
-  #
-  # The Rails package has several tools to help create and apply migrations.
-  #
-  # To generate a new migration, you can use 
-  #   script/generate migration MyNewMigration
-  #
-  # where MyNewMigration is the name of your migration. The generator will
-  # create an empty migration file <tt>nnn_my_new_migration.rb</tt> in the <tt>db/migrate/</tt>
-  # directory where <tt>nnn</tt> is the next largest migration number.
-  #
-  # You may then edit the <tt>self.up</tt> and <tt>self.down</tt> methods of
-  # MyNewMigration.
-  #
-  # There is a special syntactic shortcut to generate migrations that add fields to a table.
-  #   script/generate migration add_fieldname_to_tablename fieldname:string
-  #
-  # This will generate the file <tt>nnn_add_fieldname_to_tablename</tt>, which will look like this:
-  #   class AddFieldnameToTablename < ActiveRecord::Migration
-  #     def self.up
-  #       add_column :tablenames, :fieldname, :string
-  #     end
-  # 
-  #     def self.down
-  #       remove_column :tablenames, :fieldname
-  #     end
-  #   end
-  # 
-  # To run migrations against the currently configured database, use
-  # <tt>rake db:migrate</tt>. This will update the database by running all of the
-  # pending migrations, creating the <tt>schema_migrations</tt> table
-  # (see "About the schema_migrations table" section below) if missing. It will also 
-  # invoke the db:schema:dump task, which will update your db/schema.rb file
-  # to match the structure of your database.
-  #
-  # To roll the database back to a previous migration version, use
-  # <tt>rake db:migrate VERSION=X</tt> where <tt>X</tt> is the version to which
-  # you wish to downgrade. If any of the migrations throw an
-  # <tt>ActiveRecord::IrreversibleMigration</tt> exception, that step will fail and you'll
-  # have some manual work to do.
-  #
-  # == Database support
-  #
-  # Migrations are currently supported in MySQL, PostgreSQL, SQLite,
-  # SQL Server, Sybase, and Oracle (all supported databases except DB2).
-  #
-  # == More examples
-  #
-  # Not all migrations change the schema. Some just fix the data:
-  #
-  #   class RemoveEmptyTags < ActiveRecord::Migration
-  #     def self.up
-  #       Tag.find(:all).each { |tag| tag.destroy if tag.pages.empty? }
-  #     end
-  #
-  #     def self.down
-  #       # not much we can do to restore deleted data
-  #       raise ActiveRecord::IrreversibleMigration, "Can't recover the deleted tags"
-  #     end
-  #   end
-  #
-  # Others remove columns when they migrate up instead of down:
-  #
-  #   class RemoveUnnecessaryItemAttributes < ActiveRecord::Migration
-  #     def self.up
-  #       remove_column :items, :incomplete_items_count
-  #       remove_column :items, :completed_items_count
-  #     end
-  #
-  #     def self.down
-  #       add_column :items, :incomplete_items_count
-  #       add_column :items, :completed_items_count
-  #     end
-  #   end
-  #
-  # And sometimes you need to do something in SQL not abstracted directly by migrations:
-  #
-  #   class MakeJoinUnique < ActiveRecord::Migration
-  #     def self.up
-  #       execute "ALTER TABLE `pages_linked_pages` ADD UNIQUE `page_id_linked_page_id` (`page_id`,`linked_page_id`)"
-  #     end
-  #
-  #     def self.down
-  #       execute "ALTER TABLE `pages_linked_pages` DROP INDEX `page_id_linked_page_id`"
-  #     end
-  #   end
-  #
-  # == Using a model after changing its table
-  #
-  # Sometimes you'll want to add a column in a migration and populate it immediately after. In that case, you'll need
-  # to make a call to Base#reset_column_information in order to ensure that the model has the latest column data from
-  # after the new column was added. Example:
-  #
-  #   class AddPeopleSalary < ActiveRecord::Migration
-  #     def self.up
-  #       add_column :people, :salary, :integer
-  #       Person.reset_column_information
-  #       Person.find(:all).each do |p|
-  #         p.update_attribute :salary, SalaryCalculator.compute(p)
-  #       end
-  #     end
-  #   end
-  #
-  # == Controlling verbosity
-  #
-  # By default, migrations will describe the actions they are taking, writing
-  # them to the console as they happen, along with benchmarks describing how
-  # long each step took.
-  #
-  # You can quiet them down by setting ActiveRecord::Migration.verbose = false.
-  #
-  # You can also insert your own messages and benchmarks by using the +say_with_time+
-  # method:
-  #
-  #   def self.up
-  #     ...
-  #     say_with_time "Updating salaries..." do
-  #       Person.find(:all).each do |p|
-  #         p.update_attribute :salary, SalaryCalculator.compute(p)
-  #       end
-  #     end
-  #     ...
-  #   end
-  #
-  # The phrase "Updating salaries..." would then be printed, along with the
-  # benchmark for the block when the block completes.
-  #
-  # == About the schema_migrations table
-  #
-  # Rails versions 2.0 and prior used to create a table called
-  # <tt>schema_info</tt> when using migrations. This table contained the
-  # version of the schema as of the last applied migration.
-  #
-  # Starting with Rails 2.1, the <tt>schema_info</tt> table is
-  # (automatically) replaced by the <tt>schema_migrations</tt> table, which
-  # contains the version numbers of all the migrations applied.
-  #
-  # As a result, it is now possible to add migration files that are numbered
-  # lower than the current schema version: when migrating up, those
-  # never-applied "interleaved" migrations will be automatically applied, and
-  # when migrating down, never-applied "interleaved" migrations will be skipped.
-  # 
-  # == Timestamped Migrations
-  #
-  # By default, Rails generates migrations that look like:
-  #
-  #    20080717013526_your_migration_name.rb
-  #
-  # The prefix is a generation timestamp (in UTC).
-  #
-  # If you'd prefer to use numeric prefixes, you can turn timestamped migrations
-  # off by setting:
-  #
-  #    config.active_record.timestamped_migrations = false
-  # 
-  # In environment.rb.
-  #
-  class Migration
-    @@verbose = true
-    cattr_accessor :verbose
-
-    class << self
-      def up_with_benchmarks #:nodoc:
-        migrate(:up)
-      end
-
-      def down_with_benchmarks #:nodoc:
-        migrate(:down)
-      end
-
-      # Execute this migration in the named direction
-      def migrate(direction)
-        return unless respond_to?(direction)
-
-        case direction
-          when :up   then announce "migrating"
-          when :down then announce "reverting"
-        end
-
-        result = nil
-        time = Benchmark.measure { result = send("#{direction}_without_benchmarks") }
-
-        case direction
-          when :up   then announce "migrated (%.4fs)" % time.real; write
-          when :down then announce "reverted (%.4fs)" % time.real; write
-        end
-
-        result
-      end
-
-      # Because the method added may do an alias_method, it can be invoked
-      # recursively. We use @ignore_new_methods as a guard to indicate whether
-      # it is safe for the call to proceed.
-      def singleton_method_added(sym) #:nodoc:
-        return if defined?(@ignore_new_methods) && @ignore_new_methods
-
-        begin
-          @ignore_new_methods = true
-
-          case sym
-            when :up, :down
-              klass = (class << self; self; end)
-              klass.send(:alias_method_chain, sym, "benchmarks")
-          end
-        ensure
-          @ignore_new_methods = false
-        end
-      end
-
-      def write(text="")
-        puts(text) if verbose
-      end
-
-      def announce(message)
-        text = "#{@version} #{name}: #{message}"
-        length = [0, 75 - text.length].max
-        write "== %s %s" % [text, "=" * length]
-      end
-
-      def say(message, subitem=false)
-        write "#{subitem ? "   ->" : "--"} #{message}"
-      end
-
-      def say_with_time(message)
-        say(message)
-        result = nil
-        time = Benchmark.measure { result = yield }
-        say "%.4fs" % time.real, :subitem
-        say("#{result} rows", :subitem) if result.is_a?(Integer)
-        result
-      end
-
-      def suppress_messages
-        save, self.verbose = verbose, false
-        yield
-      ensure
-        self.verbose = save
-      end
-
-      def connection
-        ActiveRecord::Base.connection
-      end
-
-      def method_missing(method, *arguments, &block)
-        arg_list = arguments.map(&:inspect) * ', '
-
-        say_with_time "#{method}(#{arg_list})" do
-          unless arguments.empty? || method == :execute
-            arguments[0] = Migrator.proper_table_name(arguments.first)
-          end
-          connection.send(method, *arguments, &block)
-        end
-      end
-    end
-  end
-
-  # MigrationProxy is used to defer loading of the actual migration classes
-  # until they are needed
-  class MigrationProxy
-
-    attr_accessor :name, :version, :filename
-
-    delegate :migrate, :announce, :write, :to=>:migration
-
-    private
-
-      def migration
-        @migration ||= load_migration
-      end
-
-      def load_migration
-        load(filename)
-        name.constantize
-      end
-
-  end
-
-  class Migrator#:nodoc:
-    class << self
-      def migrate(migrations_path, target_version = nil)
-        case
-          when target_version.nil?              then up(migrations_path, target_version)
-          when current_version > target_version then down(migrations_path, target_version)
-          else                                       up(migrations_path, target_version)
-        end
-      end
-
-      def rollback(migrations_path, steps=1)
-        migrator = self.new(:down, migrations_path)
-        start_index = migrator.migrations.index(migrator.current_migration)
-        
-        return unless start_index
-        
-        finish = migrator.migrations[start_index + steps]
-        down(migrations_path, finish ? finish.version : 0)
-      end
-
-      def up(migrations_path, target_version = nil)
-        self.new(:up, migrations_path, target_version).migrate
-      end
-
-      def down(migrations_path, target_version = nil)
-        self.new(:down, migrations_path, target_version).migrate
-      end
-      
-      def run(direction, migrations_path, target_version)
-        self.new(direction, migrations_path, target_version).run
-      end
-
-      def schema_migrations_table_name
-        Base.table_name_prefix + 'schema_migrations' + Base.table_name_suffix
-      end
-
-      def get_all_versions
-        Base.connection.select_values("SELECT version FROM #{schema_migrations_table_name}").map(&:to_i).sort
-      end
-
-      def current_version
-        sm_table = schema_migrations_table_name
-        if Base.connection.table_exists?(sm_table)
-          get_all_versions.max || 0
-        else
-          0
-        end
-      end
-
-      def proper_table_name(name)
-        # Use the Active Record objects own table_name, or pre/suffix from ActiveRecord::Base if name is a symbol/string
-        name.table_name rescue "#{ActiveRecord::Base.table_name_prefix}#{name}#{ActiveRecord::Base.table_name_suffix}"
-      end
-    end
-
-    def initialize(direction, migrations_path, target_version = nil)
-      raise StandardError.new("This database does not yet support migrations") unless Base.connection.supports_migrations?
-      Base.connection.initialize_schema_migrations_table
-      @direction, @migrations_path, @target_version = direction, migrations_path, target_version      
-    end
-
-    def current_version
-      migrated.last || 0
-    end
-    
-    def current_migration
-      migrations.detect { |m| m.version == current_version }
-    end
-    
-    def run
-      target = migrations.detect { |m| m.version == @target_version }
-      raise UnknownMigrationVersionError.new(@target_version) if target.nil?
-      unless (up? && migrated.include?(target.version.to_i)) || (down? && !migrated.include?(target.version.to_i))
-        target.migrate(@direction)
-        record_version_state_after_migrating(target.version)
-      end
-    end
-
-    def migrate
-      current = migrations.detect { |m| m.version == current_version }
-      target = migrations.detect { |m| m.version == @target_version }
-
-      if target.nil? && !@target_version.nil? && @target_version > 0
-        raise UnknownMigrationVersionError.new(@target_version)
-      end
-      
-      start = up? ? 0 : (migrations.index(current) || 0)
-      finish = migrations.index(target) || migrations.size - 1
-      runnable = migrations[start..finish]
-      
-      # skip the last migration if we're headed down, but not ALL the way down
-      runnable.pop if down? && !target.nil?
-      
-      runnable.each do |migration|
-        Base.logger.info "Migrating to #{migration.name} (#{migration.version})" if Base.logger
-
-        # On our way up, we skip migrating the ones we've already migrated
-        next if up? && migrated.include?(migration.version.to_i)
-
-        # On our way down, we skip reverting the ones we've never migrated
-        if down? && !migrated.include?(migration.version.to_i)
-          migration.announce 'never migrated, skipping'; migration.write
-          next
-        end
-
-        begin
-          ddl_transaction do
-            migration.migrate(@direction)
-            record_version_state_after_migrating(migration.version)
-          end
-        rescue => e
-          canceled_msg = Base.connection.supports_ddl_transactions? ? "this and " : ""
-          raise StandardError, "An error has occurred, #{canceled_msg}all later migrations canceled:\n\n#{e}", e.backtrace
-        end
-      end
-    end
-
-    def migrations
-      @migrations ||= begin
-        files = Dir["#{@migrations_path}/[0-9]*_*.rb"]
-        
-        migrations = files.inject([]) do |klasses, file|
-          version, name = file.scan(/([0-9]+)_([_a-z0-9]*).rb/).first
-          
-          raise IllegalMigrationNameError.new(file) unless version
-          version = version.to_i
-          
-          if klasses.detect { |m| m.version == version }
-            raise DuplicateMigrationVersionError.new(version) 
-          end
-
-          if klasses.detect { |m| m.name == name.camelize }
-            raise DuplicateMigrationNameError.new(name.camelize) 
-          end
-          
-          klasses << returning(MigrationProxy.new) do |migration|
-            migration.name     = name.camelize
-            migration.version  = version
-            migration.filename = file
-          end
-        end
-        
-        migrations = migrations.sort_by(&:version)
-        down? ? migrations.reverse : migrations
-      end
-    end
-
-    def pending_migrations
-      already_migrated = migrated
-      migrations.reject { |m| already_migrated.include?(m.version.to_i) }
-    end
-
-    def migrated
-      @migrated_versions ||= self.class.get_all_versions
-    end
-
-    private
-      def record_version_state_after_migrating(version)
-        sm_table = self.class.schema_migrations_table_name
-
-        @migrated_versions ||= []
-        if down?
-          @migrated_versions.delete(version.to_i)
-          Base.connection.update("DELETE FROM #{sm_table} WHERE version = '#{version}'")
-        else
-          @migrated_versions.push(version.to_i).sort!
-          Base.connection.insert("INSERT INTO #{sm_table} (version) VALUES ('#{version}')")
-        end
-      end
-
-      def up?
-        @direction == :up
-      end
-
-      def down?
-        @direction == :down
-      end
-
-      # Wrap the migration in a transaction only if supported by the adapter.
-      def ddl_transaction(&block)
-        if Base.connection.supports_ddl_transactions?
-          Base.transaction { block.call }
-        else
-          block.call
-        end
-      end
-  end
-end
@@ -1,192 +0,0 @@
-module ActiveRecord
-  module NamedScope
-    # All subclasses of ActiveRecord::Base have one named scope:
-    # * <tt>scoped</tt> - which allows for the creation of anonymous \scopes, on the fly: <tt>Shirt.scoped(:conditions => {:color => 'red'}).scoped(:include => :washing_instructions)</tt>
-    #
-    # These anonymous \scopes tend to be useful when procedurally generating complex queries, where passing
-    # intermediate values (scopes) around as first-class objects is convenient.
-    #
-    # You can define a scope that applies to all finders using ActiveRecord::Base.default_scope.
-    def self.included(base)
-      base.class_eval do
-        extend ClassMethods
-        named_scope :scoped, lambda { |scope| scope }
-      end
-    end
-
-    module ClassMethods
-      def scopes
-        read_inheritable_attribute(:scopes) || write_inheritable_attribute(:scopes, {})
-      end
-
-      # Adds a class method for retrieving and querying objects. A scope represents a narrowing of a database query,
-      # such as <tt>:conditions => {:color => :red}, :select => 'shirts.*', :include => :washing_instructions</tt>.
-      #
-      #   class Shirt < ActiveRecord::Base
-      #     named_scope :red, :conditions => {:color => 'red'}
-      #     named_scope :dry_clean_only, :joins => :washing_instructions, :conditions => ['washing_instructions.dry_clean_only = ?', true]
-      #   end
-      # 
-      # The above calls to <tt>named_scope</tt> define class methods Shirt.red and Shirt.dry_clean_only. Shirt.red, 
-      # in effect, represents the query <tt>Shirt.find(:all, :conditions => {:color => 'red'})</tt>.
-      #
-      # Unlike <tt>Shirt.find(...)</tt>, however, the object returned by Shirt.red is not an Array; it resembles the association object
-      # constructed by a <tt>has_many</tt> declaration. For instance, you can invoke <tt>Shirt.red.find(:first)</tt>, <tt>Shirt.red.count</tt>,
-      # <tt>Shirt.red.find(:all, :conditions => {:size => 'small'})</tt>. Also, just
-      # as with the association objects, named \scopes act like an Array, implementing Enumerable; <tt>Shirt.red.each(&block)</tt>,
-      # <tt>Shirt.red.first</tt>, and <tt>Shirt.red.inject(memo, &block)</tt> all behave as if Shirt.red really was an Array.
-      #
-      # These named \scopes are composable. For instance, <tt>Shirt.red.dry_clean_only</tt> will produce all shirts that are both red and dry clean only.
-      # Nested finds and calculations also work with these compositions: <tt>Shirt.red.dry_clean_only.count</tt> returns the number of garments
-      # for which these criteria obtain. Similarly with <tt>Shirt.red.dry_clean_only.average(:thread_count)</tt>.
-      #
-      # All \scopes are available as class methods on the ActiveRecord::Base descendant upon which the \scopes were defined. But they are also available to
-      # <tt>has_many</tt> associations. If,
-      #
-      #   class Person < ActiveRecord::Base
-      #     has_many :shirts
-      #   end
-      #
-      # then <tt>elton.shirts.red.dry_clean_only</tt> will return all of Elton's red, dry clean
-      # only shirts.
-      #
-      # Named \scopes can also be procedural:
-      #
-      #   class Shirt < ActiveRecord::Base
-      #     named_scope :colored, lambda { |color|
-      #       { :conditions => { :color => color } }
-      #     }
-      #   end
-      #
-      # In this example, <tt>Shirt.colored('puce')</tt> finds all puce shirts.
-      #
-      # Named \scopes can also have extensions, just as with <tt>has_many</tt> declarations:
-      #
-      #   class Shirt < ActiveRecord::Base
-      #     named_scope :red, :conditions => {:color => 'red'} do
-      #       def dom_id
-      #         'red_shirts'
-      #       end
-      #     end
-      #   end
-      #
-      #
-      # For testing complex named \scopes, you can examine the scoping options using the
-      # <tt>proxy_options</tt> method on the proxy itself.
-      #
-      #   class Shirt < ActiveRecord::Base
-      #     named_scope :colored, lambda { |color|
-      #       { :conditions => { :color => color } }
-      #     }
-      #   end
-      #
-      #   expected_options = { :conditions => { :colored => 'red' } }
-      #   assert_equal expected_options, Shirt.colored('red').proxy_options
-      def named_scope(name, options = {}, &block)
-        name = name.to_sym
-        scopes[name] = lambda do |parent_scope, *args|
-          Scope.new(parent_scope, case options
-            when Hash
-              options
-            when Proc
-              options.call(*args)
-          end, &block)
-        end
-        (class << self; self end).instance_eval do
-          define_method name do |*args|
-            scopes[name].call(self, *args)
-          end
-        end
-      end
-    end
-
-    class Scope
-      attr_reader :proxy_scope, :proxy_options, :current_scoped_methods_when_defined
-      NON_DELEGATE_METHODS = %w(nil? send object_id class extend find size count sum average maximum minimum paginate first last empty? any? respond_to?).to_set
-      [].methods.each do |m|
-        unless m =~ /^__/ || NON_DELEGATE_METHODS.include?(m.to_s)
-          delegate m, :to => :proxy_found
-        end
-      end
-
-      delegate :scopes, :with_scope, :scoped_methods, :to => :proxy_scope
-
-      def initialize(proxy_scope, options, &block)
-        options ||= {}
-        [options[:extend]].flatten.each { |extension| extend extension } if options[:extend]
-        extend Module.new(&block) if block_given?
-        unless Scope === proxy_scope
-          @current_scoped_methods_when_defined = proxy_scope.send(:current_scoped_methods)
-        end
-        @proxy_scope, @proxy_options = proxy_scope, options.except(:extend)
-      end
-
-      def reload
-        load_found; self
-      end
-
-      def first(*args)
-        if args.first.kind_of?(Integer) || (@found && !args.first.kind_of?(Hash))
-          proxy_found.first(*args)
-        else
-          find(:first, *args)
-        end
-      end
-
-      def last(*args)
-        if args.first.kind_of?(Integer) || (@found && !args.first.kind_of?(Hash))
-          proxy_found.last(*args)
-        else
-          find(:last, *args)
-        end
-      end
-
-      def size
-        @found ? @found.length : count
-      end
-
-      def empty?
-        @found ? @found.empty? : count.zero?
-      end
-
-      def respond_to?(method, include_private = false)
-        super || @proxy_scope.respond_to?(method, include_private)
-      end
-
-      def any?
-        if block_given?
-          proxy_found.any? { |*block_args| yield(*block_args) }
-        else
-          !empty?
-        end
-      end
-
-      protected
-      def proxy_found
-        @found || load_found
-      end
-
-      private
-      def method_missing(method, *args, &block)
-        if scopes.include?(method)
-          scopes[method].call(self, *args)
-        else
-          with_scope({:find => proxy_options, :create => proxy_options[:conditions].is_a?(Hash) ?  proxy_options[:conditions] : {}}, :reverse_merge) do
-            method = :new if method == :build
-            if current_scoped_methods_when_defined && !scoped_methods.include?(current_scoped_methods_when_defined)
-              with_scope current_scoped_methods_when_defined do
-                proxy_scope.send(method, *args, &block)
-              end
-            else
-              proxy_scope.send(method, *args, &block)
-            end
-          end
-        end
-      end
-
-      def load_found
-        @found = find(:all)
-      end
-    end
-  end
-end
@@ -1,392 +0,0 @@
-module ActiveRecord
-  module NestedAttributes #:nodoc:
-    class TooManyRecords < ActiveRecordError
-    end
-
-    def self.included(base)
-      base.extend(ClassMethods)
-      base.class_inheritable_accessor :nested_attributes_options, :instance_writer => false
-      base.nested_attributes_options = {}
-    end
-
-    # == Nested Attributes
-    #
-    # Nested attributes allow you to save attributes on associated records
-    # through the parent. By default nested attribute updating is turned off,
-    # you can enable it using the accepts_nested_attributes_for class method.
-    # When you enable nested attributes an attribute writer is defined on
-    # the model.
-    #
-    # The attribute writer is named after the association, which means that
-    # in the following example, two new methods are added to your model:
-    # <tt>author_attributes=(attributes)</tt> and
-    # <tt>pages_attributes=(attributes)</tt>.
-    #
-    #   class Book < ActiveRecord::Base
-    #     has_one :author
-    #     has_many :pages
-    #
-    #     accepts_nested_attributes_for :author, :pages
-    #   end
-    #
-    # Note that the <tt>:autosave</tt> option is automatically enabled on every
-    # association that accepts_nested_attributes_for is used for.
-    #
-    # === One-to-one
-    #
-    # Consider a Member model that has one Avatar:
-    #
-    #   class Member < ActiveRecord::Base
-    #     has_one :avatar
-    #     accepts_nested_attributes_for :avatar
-    #   end
-    #
-    # Enabling nested attributes on a one-to-one association allows you to
-    # create the member and avatar in one go:
-    #
-    #   params = { :member => { :name => 'Jack', :avatar_attributes => { :icon => 'smiling' } } }
-    #   member = Member.create(params)
-    #   member.avatar.id # => 2
-    #   member.avatar.icon # => 'smiling'
-    #
-    # It also allows you to update the avatar through the member:
-    #
-    #   params = { :member' => { :avatar_attributes => { :id => '2', :icon => 'sad' } } }
-    #   member.update_attributes params['member']
-    #   member.avatar.icon # => 'sad'
-    #
-    # By default you will only be able to set and update attributes on the
-    # associated model. If you want to destroy the associated model through the
-    # attributes hash, you have to enable it first using the
-    # <tt>:allow_destroy</tt> option.
-    #
-    #   class Member < ActiveRecord::Base
-    #     has_one :avatar
-    #     accepts_nested_attributes_for :avatar, :allow_destroy => true
-    #   end
-    #
-    # Now, when you add the <tt>_destroy</tt> key to the attributes hash, with a
-    # value that evaluates to +true+, you will destroy the associated model:
-    #
-    #   member.avatar_attributes = { :id => '2', :_destroy => '1' }
-    #   member.avatar.marked_for_destruction? # => true
-    #   member.save
-    #   member.avatar #=> nil
-    #
-    # Note that the model will _not_ be destroyed until the parent is saved.
-    #
-    # === One-to-many
-    #
-    # Consider a member that has a number of posts:
-    #
-    #   class Member < ActiveRecord::Base
-    #     has_many :posts
-    #     accepts_nested_attributes_for :posts
-    #   end
-    #
-    # You can now set or update attributes on an associated post model through
-    # the attribute hash.
-    #
-    # For each hash that does _not_ have an <tt>id</tt> key a new record will
-    # be instantiated, unless the hash also contains a <tt>_destroy</tt> key
-    # that evaluates to +true+.
-    #
-    #   params = { :member => {
-    #     :name => 'joe', :posts_attributes => [
-    #       { :title => 'Kari, the awesome Ruby documentation browser!' },
-    #       { :title => 'The egalitarian assumption of the modern citizen' },
-    #       { :title => '', :_destroy => '1' } # this will be ignored
-    #     ]
-    #   }}
-    #
-    #   member = Member.create(params['member'])
-    #   member.posts.length # => 2
-    #   member.posts.first.title # => 'Kari, the awesome Ruby documentation browser!'
-    #   member.posts.second.title # => 'The egalitarian assumption of the modern citizen'
-    #
-    # You may also set a :reject_if proc to silently ignore any new record
-    # hashes if they fail to pass your criteria. For example, the previous
-    # example could be rewritten as:
-    #
-    #    class Member < ActiveRecord::Base
-    #      has_many :posts
-    #      accepts_nested_attributes_for :posts, :reject_if => proc { |attributes| attributes['title'].blank? }
-    #    end
-    #
-    #   params = { :member => {
-    #     :name => 'joe', :posts_attributes => [
-    #       { :title => 'Kari, the awesome Ruby documentation browser!' },
-    #       { :title => 'The egalitarian assumption of the modern citizen' },
-    #       { :title => '' } # this will be ignored because of the :reject_if proc
-    #     ]
-    #   }}
-    #
-    #   member = Member.create(params['member'])
-    #   member.posts.length # => 2
-    #   member.posts.first.title # => 'Kari, the awesome Ruby documentation browser!'
-    #   member.posts.second.title # => 'The egalitarian assumption of the modern citizen'
-    #
-    #  Alternatively, :reject_if also accepts a symbol for using methods:
-    #
-    #    class Member < ActiveRecord::Base
-    #      has_many :posts
-    #      accepts_nested_attributes_for :posts, :reject_if => :new_record?
-    #    end
-    #
-    #    class Member < ActiveRecord::Base
-    #      has_many :posts
-    #      accepts_nested_attributes_for :posts, :reject_if => :reject_posts
-    #
-    #      def reject_posts(attributed)
-    #        attributed['title].blank?
-    #      end
-    #    end
-    #
-    # If the hash contains an <tt>id</tt> key that matches an already
-    # associated record, the matching record will be modified:
-    #
-    #   member.attributes = {
-    #     :name => 'Joe',
-    #     :posts_attributes => [
-    #       { :id => 1, :title => '[UPDATED] An, as of yet, undisclosed awesome Ruby documentation browser!' },
-    #       { :id => 2, :title => '[UPDATED] other post' }
-    #     ]
-    #   }
-    #
-    #   member.posts.first.title # => '[UPDATED] An, as of yet, undisclosed awesome Ruby documentation browser!'
-    #   member.posts.second.title # => '[UPDATED] other post'
-    #
-    # By default the associated records are protected from being destroyed. If
-    # you want to destroy any of the associated records through the attributes
-    # hash, you have to enable it first using the <tt>:allow_destroy</tt>
-    # option. This will allow you to also use the <tt>_destroy</tt> key to
-    # destroy existing records:
-    #
-    #   class Member < ActiveRecord::Base
-    #     has_many :posts
-    #     accepts_nested_attributes_for :posts, :allow_destroy => true
-    #   end
-    #
-    #   params = { :member => {
-    #     :posts_attributes => [{ :id => '2', :_destroy => '1' }]
-    #   }}
-    #
-    #   member.attributes = params['member']
-    #   member.posts.detect { |p| p.id == 2 }.marked_for_destruction? # => true
-    #   member.posts.length #=> 2
-    #   member.save
-    #   member.posts.length # => 1
-    #
-    # === Saving
-    #
-    # All changes to models, including the destruction of those marked for
-    # destruction, are saved and destroyed automatically and atomically when
-    # the parent model is saved. This happens inside the transaction initiated
-    # by the parents save method. See ActiveRecord::AutosaveAssociation.
-    module ClassMethods
-      # Defines an attributes writer for the specified association(s). If you
-      # are using <tt>attr_protected</tt> or <tt>attr_accessible</tt>, then you
-      # will need to add the attribute writer to the allowed list.
-      #
-      # Supported options:
-      # [:allow_destroy]
-      #   If true, destroys any members from the attributes hash with a
-      #   <tt>_destroy</tt> key and a value that evaluates to +true+
-      #   (eg. 1, '1', true, or 'true'). This option is off by default.
-      # [:reject_if]
-      #   Allows you to specify a Proc or a Symbol pointing to a method
-      #   that checks whether a record should be built for a certain attribute
-      #   hash. The hash is passed to the supplied Proc or the method
-      #   and it should return either +true+ or +false+. When no :reject_if
-      #   is specified, a record will be built for all attribute hashes that
-      #   do not have a <tt>_destroy</tt> value that evaluates to true.
-      #   Passing <tt>:all_blank</tt> instead of a Proc will create a proc
-      #   that will reject a record where all the attributes are blank.
-      # [:limit]
-      #   Allows you to specify the maximum number of the associated records that
-      #   can be processes with the nested attributes. If the size of the
-      #   nested attributes array exceeds the specified limit, NestedAttributes::TooManyRecords
-      #   exception is raised. If omitted, any number associations can be processed.
-      #   Note that the :limit option is only applicable to one-to-many associations.
-      #
-      # Examples:
-      #   # creates avatar_attributes=
-      #   accepts_nested_attributes_for :avatar, :reject_if => proc { |attributes| attributes['name'].blank? }
-      #   # creates avatar_attributes= and posts_attributes=
-      #   accepts_nested_attributes_for :avatar, :posts, :allow_destroy => true
-      def accepts_nested_attributes_for(*attr_names)
-        options = { :allow_destroy => false }
-        options.update(attr_names.extract_options!)
-        options.assert_valid_keys(:allow_destroy, :reject_if, :limit)
-
-        attr_names.each do |association_name|
-          if reflection = reflect_on_association(association_name)
-            type = case reflection.macro
-            when :has_one, :belongs_to
-              :one_to_one
-            when :has_many, :has_and_belongs_to_many
-              :collection
-            end
-
-            reflection.options[:autosave] = true
-            self.nested_attributes_options[association_name.to_sym] = options
-
-            # def pirate_attributes=(attributes)
-            #   assign_nested_attributes_for_one_to_one_association(:pirate, attributes, false)
-            # end
-            class_eval %{
-              def #{association_name}_attributes=(attributes)
-                assign_nested_attributes_for_#{type}_association(:#{association_name}, attributes)
-              end
-            }, __FILE__, __LINE__
-
-            add_autosave_association_callbacks(reflection)
-          else
-            raise ArgumentError, "No association found for name `#{association_name}'. Has it been defined yet?"
-          end
-        end
-      end
-    end
-
-    # Returns ActiveRecord::AutosaveAssociation::marked_for_destruction? It's
-    # used in conjunction with fields_for to build a form element for the
-    # destruction of this association.
-    #
-    # See ActionView::Helpers::FormHelper::fields_for for more info.
-    def _destroy
-      marked_for_destruction?
-    end
-
-    # Deal with deprecated _delete.
-    #
-    def _delete #:nodoc:
-      ActiveSupport::Deprecation.warn "_delete is deprecated in nested attributes. Use _destroy instead."
-      _destroy
-    end
-
-    private
-
-    # Attribute hash keys that should not be assigned as normal attributes.
-    # These hash keys are nested attributes implementation details.
-    #
-    # TODO Remove _delete from UNASSIGNABLE_KEYS when deprecation warning are
-    # removed.
-    UNASSIGNABLE_KEYS = %w( id _destroy _delete )
-
-    # Assigns the given attributes to the association.
-    #
-    # If the given attributes include an <tt>:id</tt> that matches the existing
-    # record’s id, then the existing record will be modified. Otherwise a new
-    # record will be built.
-    #
-    # If the given attributes include a matching <tt>:id</tt> attribute _and_ a
-    # <tt>:_destroy</tt> key set to a truthy value, then the existing record
-    # will be marked for destruction.
-    def assign_nested_attributes_for_one_to_one_association(association_name, attributes)
-      options = self.nested_attributes_options[association_name]
-      attributes = attributes.with_indifferent_access
-
-      if attributes['id'].blank?
-        unless reject_new_record?(association_name, attributes)
-          method = "build_#{association_name}"
-          if respond_to?(method)
-            send(method, attributes.except(*UNASSIGNABLE_KEYS))
-          else
-            raise ArgumentError, "Cannot build association #{association_name}. Are you trying to build a polymorphic one-to-one association?"
-          end
-        end
-      elsif (existing_record = send(association_name)) && existing_record.id.to_s == attributes['id'].to_s
-        assign_to_or_mark_for_destruction(existing_record, attributes, options[:allow_destroy])
-      end
-    end
-
-    # Assigns the given attributes to the collection association.
-    #
-    # Hashes with an <tt>:id</tt> value matching an existing associated record
-    # will update that record. Hashes without an <tt>:id</tt> value will build
-    # a new record for the association. Hashes with a matching <tt>:id</tt>
-    # value and a <tt>:_destroy</tt> key set to a truthy value will mark the
-    # matched record for destruction.
-    #
-    # For example:
-    #
-    #   assign_nested_attributes_for_collection_association(:people, {
-    #     '1' => { :id => '1', :name => 'Peter' },
-    #     '2' => { :name => 'John' },
-    #     '3' => { :id => '2', :_destroy => true }
-    #   })
-    #
-    # Will update the name of the Person with ID 1, build a new associated
-    # person with the name `John', and mark the associatied Person with ID 2
-    # for destruction.
-    #
-    # Also accepts an Array of attribute hashes:
-    #
-    #   assign_nested_attributes_for_collection_association(:people, [
-    #     { :id => '1', :name => 'Peter' },
-    #     { :name => 'John' },
-    #     { :id => '2', :_destroy => true }
-    #   ])
-    def assign_nested_attributes_for_collection_association(association_name, attributes_collection)
-      options = self.nested_attributes_options[association_name]
-
-      unless attributes_collection.is_a?(Hash) || attributes_collection.is_a?(Array)
-        raise ArgumentError, "Hash or Array expected, got #{attributes_collection.class.name} (#{attributes_collection.inspect})"
-      end
-
-      if options[:limit] && attributes_collection.size > options[:limit]
-        raise TooManyRecords, "Maximum #{options[:limit]} records are allowed. Got #{attributes_collection.size} records instead."
-      end
-
-      if attributes_collection.is_a? Hash
-        attributes_collection = attributes_collection.sort_by { |index, _| index.to_i }.map { |_, attributes| attributes }
-      end
-
-      attributes_collection.each do |attributes|
-        attributes = attributes.with_indifferent_access
-
-        if attributes['id'].blank?
-          unless reject_new_record?(association_name, attributes)
-            send(association_name).build(attributes.except(*UNASSIGNABLE_KEYS))
-          end
-        elsif existing_record = send(association_name).detect { |record| record.id.to_s == attributes['id'].to_s }
-          assign_to_or_mark_for_destruction(existing_record, attributes, options[:allow_destroy])
-        end
-      end
-    end
-
-    # Updates a record with the +attributes+ or marks it for destruction if
-    # +allow_destroy+ is +true+ and has_destroy_flag? returns +true+.
-    def assign_to_or_mark_for_destruction(record, attributes, allow_destroy)
-      if has_destroy_flag?(attributes) && allow_destroy
-        record.mark_for_destruction
-      else
-        record.attributes = attributes.except(*UNASSIGNABLE_KEYS)
-      end
-    end
-
-    # Determines if a hash contains a truthy _destroy key.
-    def has_destroy_flag?(hash)
-      ConnectionAdapters::Column.value_to_boolean(hash['_destroy']) ||
-      ConnectionAdapters::Column.value_to_boolean(hash['_delete']) # TODO Remove after deprecation.
-    end
-
-    # Determines if a new record should be build by checking for
-    # has_destroy_flag? or if a <tt>:reject_if</tt> proc exists for this
-    # association and evaluates to +true+.
-    def reject_new_record?(association_name, attributes)
-      has_destroy_flag?(attributes) || call_reject_if(association_name, attributes)
-    end
-
-    def call_reject_if(association_name, attributes)
-      callback = self.nested_attributes_options[association_name][:reject_if]
-
-      case callback
-      when Symbol
-        method(callback).arity == 0 ? send(callback) : send(callback, attributes)
-      when Proc
-        callback.try(:call, attributes)
-      end
-    end
-  end
-end
@@ -1,197 +0,0 @@
-require 'singleton'
-require 'set'
-
-module ActiveRecord
-  module Observing # :nodoc:
-    def self.included(base)
-      base.extend ClassMethods
-    end
-
-    module ClassMethods
-      # Activates the observers assigned. Examples:
-      #
-      #   # Calls PersonObserver.instance
-      #   ActiveRecord::Base.observers = :person_observer
-      #
-      #   # Calls Cacher.instance and GarbageCollector.instance
-      #   ActiveRecord::Base.observers = :cacher, :garbage_collector
-      #
-      #   # Same as above, just using explicit class references
-      #   ActiveRecord::Base.observers = Cacher, GarbageCollector
-      #
-      # Note: Setting this does not instantiate the observers yet. +instantiate_observers+ is
-      # called during startup, and before each development request.
-      def observers=(*observers)
-        @observers = observers.flatten
-      end
-
-      # Gets the current observers.
-      def observers
-        @observers ||= []
-      end
-
-      # Instantiate the global Active Record observers.
-      def instantiate_observers
-        return if @observers.blank?
-        @observers.each do |observer|
-          if observer.respond_to?(:to_sym) # Symbol or String
-            observer.to_s.camelize.constantize.instance
-          elsif observer.respond_to?(:instance)
-            observer.instance
-          else
-            raise ArgumentError, "#{observer} must be a lowercase, underscored class name (or an instance of the class itself) responding to the instance method. Example: Person.observers = :big_brother # calls BigBrother.instance"
-          end
-        end
-      end
-
-      protected
-        # Notify observers when the observed class is subclassed.
-        def inherited(subclass)
-          super
-          changed
-          notify_observers :observed_class_inherited, subclass
-        end
-    end
-  end
-
-  # Observer classes respond to lifecycle callbacks to implement trigger-like
-  # behavior outside the original class. This is a great way to reduce the
-  # clutter that normally comes when the model class is burdened with
-  # functionality that doesn't pertain to the core responsibility of the
-  # class. Example:
-  #
-  #   class CommentObserver < ActiveRecord::Observer
-  #     def after_save(comment)
-  #       Notifications.deliver_comment("admin@do.com", "New comment was posted", comment)
-  #     end
-  #   end
-  #
-  # This Observer sends an email when a Comment#save is finished.
-  #
-  #   class ContactObserver < ActiveRecord::Observer
-  #     def after_create(contact)
-  #       contact.logger.info('New contact added!')
-  #     end
-  #
-  #     def after_destroy(contact)
-  #       contact.logger.warn("Contact with an id of #{contact.id} was destroyed!")
-  #     end
-  #   end
-  #
-  # This Observer uses logger to log when specific callbacks are triggered.
-  #
-  # == Observing a class that can't be inferred
-  #
-  # Observers will by default be mapped to the class with which they share a name. So CommentObserver will
-  # be tied to observing Comment, ProductManagerObserver to ProductManager, and so on. If you want to name your observer
-  # differently than the class you're interested in observing, you can use the Observer.observe class method which takes
-  # either the concrete class (Product) or a symbol for that class (:product):
-  #
-  #   class AuditObserver < ActiveRecord::Observer
-  #     observe :account
-  #
-  #     def after_update(account)
-  #       AuditTrail.new(account, "UPDATED")
-  #     end
-  #   end
-  #
-  # If the audit observer needs to watch more than one kind of object, this can be specified with multiple arguments:
-  #
-  #   class AuditObserver < ActiveRecord::Observer
-  #     observe :account, :balance
-  #
-  #     def after_update(record)
-  #       AuditTrail.new(record, "UPDATED")
-  #     end
-  #   end
-  #
-  # The AuditObserver will now act on both updates to Account and Balance by treating them both as records.
-  #
-  # == Available callback methods
-  #
-  # The observer can implement callback methods for each of the methods described in the Callbacks module.
-  #
-  # == Storing Observers in Rails
-  #
-  # If you're using Active Record within Rails, observer classes are usually stored in app/models with the
-  # naming convention of app/models/audit_observer.rb.
-  #
-  # == Configuration
-  #
-  # In order to activate an observer, list it in the <tt>config.active_record.observers</tt> configuration setting in your
-  # <tt>config/environment.rb</tt> file.
-  #
-  #   config.active_record.observers = :comment_observer, :signup_observer
-  #
-  # Observers will not be invoked unless you define these in your application configuration.
-  #
-  # == Loading
-  #
-  # Observers register themselves in the model class they observe, since it is the class that
-  # notifies them of events when they occur. As a side-effect, when an observer is loaded its
-  # corresponding model class is loaded.
-  #
-  # Up to (and including) Rails 2.0.2 observers were instantiated between plugins and
-  # application initializers. Now observers are loaded after application initializers,
-  # so observed models can make use of extensions.
-  #
-  # If by any chance you are using observed models in the initialization you can still
-  # load their observers by calling <tt>ModelObserver.instance</tt> before. Observers are
-  # singletons and that call instantiates and registers them.
-  #
-  class Observer
-    include Singleton
-
-    class << self
-      # Attaches the observer to the supplied model classes.
-      def observe(*models)
-        models.flatten!
-        models.collect! { |model| model.is_a?(Symbol) ? model.to_s.camelize.constantize : model }
-        define_method(:observed_classes) { Set.new(models) }
-      end
-
-      # The class observed by default is inferred from the observer's class name:
-      #   assert_equal Person, PersonObserver.observed_class
-      def observed_class
-        if observed_class_name = name[/(.*)Observer/, 1]
-          observed_class_name.constantize
-        else
-          nil
-        end
-      end
-    end
-
-    # Start observing the declared classes and their subclasses.
-    def initialize
-      Set.new(observed_classes + observed_subclasses).each { |klass| add_observer! klass }
-    end
-
-    # Send observed_method(object) if the method exists.
-    def update(observed_method, object) #:nodoc:
-      send(observed_method, object) if respond_to?(observed_method)
-    end
-
-    # Special method sent by the observed class when it is inherited.
-    # Passes the new subclass.
-    def observed_class_inherited(subclass) #:nodoc:
-      self.class.observe(observed_classes + [subclass])
-      add_observer!(subclass)
-    end
-
-    protected
-      def observed_classes
-        Set.new([self.class.observed_class].compact.flatten)
-      end
-
-      def observed_subclasses
-        observed_classes.sum([]) { |klass| klass.send(:subclasses) }
-      end
-
-      def add_observer!(klass)
-        klass.add_observer(self)
-        if respond_to?(:after_find) && !klass.method_defined?(:after_find)
-          klass.class_eval 'def after_find() end'
-        end
-      end
-  end
-end
@@ -1,33 +0,0 @@
-module ActiveRecord
-  class QueryCache
-    module ClassMethods
-      # Enable the query cache within the block if Active Record is configured.
-      def cache(&block)
-        if ActiveRecord::Base.configurations.blank?
-          yield
-        else
-          connection.cache(&block)
-        end
-      end
-
-      # Disable the query cache within the block if Active Record is configured.
-      def uncached(&block)
-        if ActiveRecord::Base.configurations.blank?
-          yield
-        else
-          connection.uncached(&block)
-        end
-      end
-    end
-
-    def initialize(app)
-      @app = app
-    end
-
-    def call(env)
-      ActiveRecord::Base.cache do
-        @app.call(env)
-      end
-    end
-  end
-end
@@ -1,320 +0,0 @@
-module ActiveRecord
-  module Reflection # :nodoc:
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
-
-    # Reflection allows you to interrogate Active Record classes and objects about their associations and aggregations.
-    # This information can, for example, be used in a form builder that took an Active Record object and created input
-    # fields for all of the attributes depending on their type and displayed the associations to other objects.
-    #
-    # You can find the interface for the AggregateReflection and AssociationReflection classes in the abstract MacroReflection class.
-    module ClassMethods
-      def create_reflection(macro, name, options, active_record)
-        case macro
-          when :has_many, :belongs_to, :has_one, :has_and_belongs_to_many
-            klass = options[:through] ? ThroughReflection : AssociationReflection
-            reflection = klass.new(macro, name, options, active_record)
-          when :composed_of
-            reflection = AggregateReflection.new(macro, name, options, active_record)
-        end
-        write_inheritable_hash :reflections, name => reflection
-        reflection
-      end
-
-      # Returns a hash containing all AssociationReflection objects for the current class
-      # Example:
-      #
-      #   Invoice.reflections
-      #   Account.reflections
-      #
-      def reflections
-        read_inheritable_attribute(:reflections) || write_inheritable_attribute(:reflections, {})
-      end
-
-      # Returns an array of AggregateReflection objects for all the aggregations in the class.
-      def reflect_on_all_aggregations
-        reflections.values.select { |reflection| reflection.is_a?(AggregateReflection) }
-      end
-
-      # Returns the AggregateReflection object for the named +aggregation+ (use the symbol). Example:
-      #
-      #   Account.reflect_on_aggregation(:balance) # returns the balance AggregateReflection
-      #
-      def reflect_on_aggregation(aggregation)
-        reflections[aggregation].is_a?(AggregateReflection) ? reflections[aggregation] : nil
-      end
-
-      # Returns an array of AssociationReflection objects for all the associations in the class. If you only want to reflect on a
-      # certain association type, pass in the symbol (<tt>:has_many</tt>, <tt>:has_one</tt>, <tt>:belongs_to</tt>) for that as the first parameter.
-      # Example:
-      #
-      #   Account.reflect_on_all_associations             # returns an array of all associations
-      #   Account.reflect_on_all_associations(:has_many)  # returns an array of all has_many associations
-      #
-      def reflect_on_all_associations(macro = nil)
-        association_reflections = reflections.values.select { |reflection| reflection.is_a?(AssociationReflection) }
-        macro ? association_reflections.select { |reflection| reflection.macro == macro } : association_reflections
-      end
-
-      # Returns the AssociationReflection object for the named +association+ (use the symbol). Example:
-      #
-      #   Account.reflect_on_association(:owner) # returns the owner AssociationReflection
-      #   Invoice.reflect_on_association(:line_items).macro  # returns :has_many
-      #
-      def reflect_on_association(association)
-        reflections[association].is_a?(AssociationReflection) ? reflections[association] : nil
-      end
-
-      # Returns an array of AssociationReflection objects for all associations which have <tt>:autosave</tt> enabled.
-      def reflect_on_all_autosave_associations
-        reflections.values.select { |reflection| reflection.options[:autosave] }
-      end
-    end
-
-
-    # Abstract base class for AggregateReflection and AssociationReflection that describes the interface available for both of
-    # those classes. Objects of AggregateReflection and AssociationReflection are returned by the Reflection::ClassMethods.
-    class MacroReflection
-      attr_reader :active_record
-
-      def initialize(macro, name, options, active_record)
-        @macro, @name, @options, @active_record = macro, name, options, active_record
-      end
-
-      # Returns the name of the macro.  For example, <tt>composed_of :balance, :class_name => 'Money'</tt> will return
-      # <tt>:balance</tt> or for <tt>has_many :clients</tt> it will return <tt>:clients</tt>.
-      def name
-        @name
-      end
-
-      # Returns the macro type. For example, <tt>composed_of :balance, :class_name => 'Money'</tt> will return <tt>:composed_of</tt>
-      # or for <tt>has_many :clients</tt> will return <tt>:has_many</tt>.
-      def macro
-        @macro
-      end
-
-      # Returns the hash of options used for the macro.  For example, it would return <tt>{ :class_name => "Money" }</tt> for
-      # <tt>composed_of :balance, :class_name => 'Money'</tt> or +{}+ for <tt>has_many :clients</tt>.
-      def options
-        @options
-      end
-
-      # Returns the class for the macro.  For example, <tt>composed_of :balance, :class_name => 'Money'</tt> returns the Money
-      # class and <tt>has_many :clients</tt> returns the Client class.
-      def klass
-        @klass ||= class_name.constantize
-      end
-
-      # Returns the class name for the macro.  For example, <tt>composed_of :balance, :class_name => 'Money'</tt> returns <tt>'Money'</tt>
-      # and <tt>has_many :clients</tt> returns <tt>'Client'</tt>.
-      def class_name
-        @class_name ||= options[:class_name] || derive_class_name
-      end
-
-      # Returns +true+ if +self+ and +other_aggregation+ have the same +name+ attribute, +active_record+ attribute,
-      # and +other_aggregation+ has an options hash assigned to it.
-      def ==(other_aggregation)
-        other_aggregation.kind_of?(self.class) && name == other_aggregation.name && other_aggregation.options && active_record == other_aggregation.active_record
-      end
-
-      def sanitized_conditions #:nodoc:
-        @sanitized_conditions ||= klass.send(:sanitize_sql, options[:conditions]) if options[:conditions]
-      end
-
-      # Returns +true+ if +self+ is a +belongs_to+ reflection.
-      def belongs_to?
-        macro == :belongs_to
-      end
-
-      private
-        def derive_class_name
-          name.to_s.camelize
-        end
-    end
-
-
-    # Holds all the meta-data about an aggregation as it was specified in the Active Record class.
-    class AggregateReflection < MacroReflection #:nodoc:
-    end
-
-    # Holds all the meta-data about an association as it was specified in the Active Record class.
-    class AssociationReflection < MacroReflection #:nodoc:
-      # Returns the target association's class:
-      #
-      #   class Author < ActiveRecord::Base
-      #     has_many :books
-      #   end
-      #
-      #   Author.reflect_on_association(:books).klass
-      #   # => Book
-      #
-      # <b>Note:</b> do not call +klass.new+ or +klass.create+ to instantiate
-      # a new association object. Use +build_association+ or +create_association+
-      # instead. This allows plugins to hook into association object creation.
-      def klass
-        @klass ||= active_record.send(:compute_type, class_name)
-      end
-
-      # Returns a new, unsaved instance of the associated class. +options+ will
-      # be passed to the class's constructor.
-      def build_association(*options)
-        klass.new(*options)
-      end
-
-      # Creates a new instance of the associated class, and immediates saves it
-      # with ActiveRecord::Base#save. +options+ will be passed to the class's
-      # creation method. Returns the newly created object.
-      def create_association(*options)
-        klass.create(*options)
-      end
-
-      # Creates a new instance of the associated class, and immediates saves it
-      # with ActiveRecord::Base#save!. +options+ will be passed to the class's
-      # creation method. If the created record doesn't pass validations, then an
-      # exception will be raised.
-      #
-      # Returns the newly created object.
-      def create_association!(*options)
-        klass.create!(*options)
-      end
-
-      def table_name
-        @table_name ||= klass.table_name
-      end
-
-      def quoted_table_name
-        @quoted_table_name ||= klass.quoted_table_name
-      end
-
-      def primary_key_name
-        @primary_key_name ||= options[:foreign_key] || derive_primary_key_name
-      end
-
-      def association_foreign_key
-        @association_foreign_key ||= @options[:association_foreign_key] || class_name.foreign_key
-      end
-
-      def counter_cache_column
-        if options[:counter_cache] == true
-          "#{active_record.name.demodulize.underscore.pluralize}_count"
-        elsif options[:counter_cache]
-          options[:counter_cache]
-        end
-      end
-
-      def columns(tbl_name, log_msg)
-        @columns ||= klass.connection.columns(tbl_name, log_msg)
-      end
-
-      def reset_column_information
-        @columns = nil
-      end
-
-      def check_validity!
-      end
-
-      def through_reflection
-        false
-      end
-
-      def through_reflection_primary_key_name
-      end
-
-      def source_reflection
-        nil
-      end
-
-      private
-        def derive_class_name
-          class_name = name.to_s.camelize
-          class_name = class_name.singularize if [ :has_many, :has_and_belongs_to_many ].include?(macro)
-          class_name
-        end
-
-        def derive_primary_key_name
-          if belongs_to?
-            "#{name}_id"
-          elsif options[:as]
-            "#{options[:as]}_id"
-          else
-            active_record.name.foreign_key
-          end
-        end
-    end
-
-    # Holds all the meta-data about a :through association as it was specified in the Active Record class.
-    class ThroughReflection < AssociationReflection #:nodoc:
-      # Gets the source of the through reflection.  It checks both a singularized and pluralized form for <tt>:belongs_to</tt> or <tt>:has_many</tt>.
-      # (The <tt>:tags</tt> association on Tagging below.)
-      #
-      #   class Post < ActiveRecord::Base
-      #     has_many :taggings
-      #     has_many :tags, :through => :taggings
-      #   end
-      #
-      def source_reflection
-        @source_reflection ||= source_reflection_names.collect { |name| through_reflection.klass.reflect_on_association(name) }.compact.first
-      end
-
-      # Returns the AssociationReflection object specified in the <tt>:through</tt> option
-      # of a HasManyThrough or HasOneThrough association. Example:
-      #
-      #   class Post < ActiveRecord::Base
-      #     has_many :taggings
-      #     has_many :tags, :through => :taggings
-      #   end
-      #
-      #   tags_reflection = Post.reflect_on_association(:tags)
-      #   taggings_reflection = tags_reflection.through_reflection
-      #
-      def through_reflection
-        @through_reflection ||= active_record.reflect_on_association(options[:through])
-      end
-
-      # Gets an array of possible <tt>:through</tt> source reflection names:
-      #
-      #   [:singularized, :pluralized]
-      #
-      def source_reflection_names
-        @source_reflection_names ||= (options[:source] ? [options[:source]] : [name.to_s.singularize, name]).collect { |n| n.to_sym }
-      end
-
-      def check_validity!
-        if through_reflection.nil?
-          raise HasManyThroughAssociationNotFoundError.new(active_record.name, self)
-        end
-
-        if source_reflection.nil?
-          raise HasManyThroughSourceAssociationNotFoundError.new(self)
-        end
-
-        if options[:source_type] && source_reflection.options[:polymorphic].nil?
-          raise HasManyThroughAssociationPointlessSourceTypeError.new(active_record.name, self, source_reflection)
-        end
-
-        if source_reflection.options[:polymorphic] && options[:source_type].nil?
-          raise HasManyThroughAssociationPolymorphicError.new(active_record.name, self, source_reflection)
-        end
-
-        unless [:belongs_to, :has_many, :has_one].include?(source_reflection.macro) && source_reflection.options[:through].nil?
-          raise HasManyThroughSourceAssociationMacroError.new(self)
-        end
-      end
-
-      def through_reflection_primary_key
-        through_reflection.belongs_to? ? through_reflection.klass.primary_key : through_reflection.primary_key_name
-      end
-
-      def through_reflection_primary_key_name
-        through_reflection.primary_key_name if through_reflection.belongs_to?
-      end
-
-      private
-        def derive_class_name
-          # get the class_name of the belongs_to association of the through reflection
-          options[:source_type] || source_reflection.class_name
-        end
-    end
-  end
-end
@@ -1,51 +0,0 @@
-module ActiveRecord
-  # Allows programmers to programmatically define a schema in a portable
-  # DSL. This means you can define tables, indexes, etc. without using SQL
-  # directly, so your applications can more easily support multiple
-  # databases.
-  #
-  # Usage:
-  #
-  #   ActiveRecord::Schema.define do
-  #     create_table :authors do |t|
-  #       t.string :name, :null => false
-  #     end
-  #
-  #     add_index :authors, :name, :unique
-  #
-  #     create_table :posts do |t|
-  #       t.integer :author_id, :null => false
-  #       t.string :subject
-  #       t.text :body
-  #       t.boolean :private, :default => false
-  #     end
-  #
-  #     add_index :posts, :author_id
-  #   end
-  #
-  # ActiveRecord::Schema is only supported by database adapters that also
-  # support migrations, the two features being very similar.
-  class Schema < Migration
-    private_class_method :new
-
-    # Eval the given block. All methods available to the current connection
-    # adapter are available within the block, so you can easily use the
-    # database definition DSL to build up your schema (+create_table+,
-    # +add_index+, etc.).
-    #
-    # The +info+ hash is optional, and if given is used to define metadata
-    # about the current schema (currently, only the schema's version):
-    #
-    #   ActiveRecord::Schema.define(:version => 20380119000001) do
-    #     ...
-    #   end
-    def self.define(info={}, &block)
-      instance_eval(&block)
-
-      unless info[:version].blank?
-        initialize_schema_migrations_table
-        assume_migrated_upto_version info[:version]
-      end
-    end
-  end
-end
@@ -1,182 +0,0 @@
-require 'stringio'
-require 'bigdecimal'
-
-module ActiveRecord
-  # This class is used to dump the database schema for some connection to some
-  # output format (i.e., ActiveRecord::Schema).
-  class SchemaDumper #:nodoc:
-    private_class_method :new
-    
-    ##
-    # :singleton-method:
-    # A list of tables which should not be dumped to the schema. 
-    # Acceptable values are strings as well as regexp.
-    # This setting is only used if ActiveRecord::Base.schema_format == :ruby
-    cattr_accessor :ignore_tables 
-    @@ignore_tables = []
-
-    def self.dump(connection=ActiveRecord::Base.connection, stream=STDOUT)
-      new(connection).dump(stream)
-      stream
-    end
-
-    def dump(stream)
-      header(stream)
-      tables(stream)
-      trailer(stream)
-      stream
-    end
-
-    private
-
-      def initialize(connection)
-        @connection = connection
-        @types = @connection.native_database_types
-        @version = Migrator::current_version rescue nil
-      end
-
-      def header(stream)
-        define_params = @version ? ":version => #{@version}" : ""
-
-        stream.puts <<HEADER
-# This file is auto-generated from the current state of the database. Instead of editing this file, 
-# please use the migrations feature of Active Record to incrementally modify your database, and
-# then regenerate this schema definition.
-#
-# Note that this schema.rb definition is the authoritative source for your database schema. If you need
-# to create the application database on another system, you should be using db:schema:load, not running
-# all the migrations from scratch. The latter is a flawed and unsustainable approach (the more migrations
-# you'll amass, the slower it'll run and the greater likelihood for issues).
-#
-# It's strongly recommended to check this file into your version control system.
-
-ActiveRecord::Schema.define(#{define_params}) do
-
-HEADER
-      end
-
-      def trailer(stream)
-        stream.puts "end"
-      end
-
-      def tables(stream)
-        @connection.tables.sort.each do |tbl|
-          next if ['schema_migrations', ignore_tables].flatten.any? do |ignored|
-            case ignored
-            when String; tbl == ignored
-            when Regexp; tbl =~ ignored
-            else
-              raise StandardError, 'ActiveRecord::SchemaDumper.ignore_tables accepts an array of String and / or Regexp values.'
-            end
-          end 
-          table(tbl, stream)
-        end
-      end
-
-      def table(table, stream)
-        columns = @connection.columns(table)
-        begin
-          tbl = StringIO.new
-
-          # first dump primary key column
-          if @connection.respond_to?(:pk_and_sequence_for)
-            pk, pk_seq = @connection.pk_and_sequence_for(table)
-          elsif @connection.respond_to?(:primary_key)
-            pk = @connection.primary_key(table)
-          end
-          
-          tbl.print "  create_table #{table.inspect}"
-          if columns.detect { |c| c.name == pk }
-            if pk != 'id'
-              tbl.print %Q(, :primary_key => "#{pk}")
-            end
-          else
-            tbl.print ", :id => false"
-          end
-          tbl.print ", :force => true"
-          tbl.puts " do |t|"
-
-          # then dump all non-primary key columns
-          column_specs = columns.map do |column|
-            raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}'" if @types[column.type].nil?
-            next if column.name == pk
-            spec = {}
-            spec[:name]      = column.name.inspect
-            spec[:type]      = column.type.to_s
-            spec[:limit]     = column.limit.inspect if column.limit != @types[column.type][:limit] && column.type != :decimal
-            spec[:precision] = column.precision.inspect if !column.precision.nil?
-            spec[:scale]     = column.scale.inspect if !column.scale.nil?
-            spec[:null]      = 'false' if !column.null
-            spec[:default]   = default_string(column.default) if column.has_default?
-            (spec.keys - [:name, :type]).each{ |k| spec[k].insert(0, "#{k.inspect} => ")}
-            spec
-          end.compact
-
-          # find all migration keys used in this table
-          keys = [:name, :limit, :precision, :scale, :default, :null] & column_specs.map(&:keys).flatten
-
-          # figure out the lengths for each column based on above keys
-          lengths = keys.map{ |key| column_specs.map{ |spec| spec[key] ? spec[key].length + 2 : 0 }.max }
-
-          # the string we're going to sprintf our values against, with standardized column widths
-          format_string = lengths.map{ |len| "%-#{len}s" }
-
-          # find the max length for the 'type' column, which is special
-          type_length = column_specs.map{ |column| column[:type].length }.max
-
-          # add column type definition to our format string
-          format_string.unshift "    t.%-#{type_length}s "
-
-          format_string *= ''
-
-          column_specs.each do |colspec|
-            values = keys.zip(lengths).map{ |key, len| colspec.key?(key) ? colspec[key] + ", " : " " * len }
-            values.unshift colspec[:type]
-            tbl.print((format_string % values).gsub(/,\s*$/, ''))
-            tbl.puts
-          end
-
-          tbl.puts "  end"
-          tbl.puts
-          
-          indexes(table, tbl)
-
-          tbl.rewind
-          stream.print tbl.read
-        rescue => e
-          stream.puts "# Could not dump table #{table.inspect} because of following #{e.class}"
-          stream.puts "#   #{e.message}"
-          stream.puts
-        end
-        
-        stream
-      end
-
-      def default_string(value)
-        case value
-        when BigDecimal
-          value.to_s
-        when Date, DateTime, Time
-          "'" + value.to_s(:db) + "'"
-        else
-          value.inspect
-        end
-      end
-      
-      def indexes(table, stream)
-        if (indexes = @connection.indexes(table)).any?
-          add_index_statements = indexes.map do |index|
-            statment_parts = [ ('add_index ' + index.table.inspect) ]
-            statment_parts << index.columns.inspect
-            statment_parts << (':name => ' + index.name.inspect)
-            statment_parts << ':unique => true' if index.unique
-
-            '  ' + statment_parts.join(', ')
-          end
-
-          stream.puts add_index_statements.sort.join("\n")
-          stream.puts
-        end
-      end
-  end
-end
@@ -1,101 +0,0 @@
-require 'active_support/json'
-
-module ActiveRecord #:nodoc:
-  module Serialization
-    class Serializer #:nodoc:
-      attr_reader :options
-
-      def initialize(record, options = nil)
-        @record = record
-        @options = options ? options.dup : {}
-      end
-
-      # To replicate the behavior in ActiveRecord#attributes,
-      # <tt>:except</tt> takes precedence over <tt>:only</tt>.  If <tt>:only</tt> is not set
-      # for a N level model but is set for the N+1 level models,
-      # then because <tt>:except</tt> is set to a default value, the second
-      # level model can have both <tt>:except</tt> and <tt>:only</tt> set.  So if
-      # <tt>:only</tt> is set, always delete <tt>:except</tt>.
-      def serializable_attribute_names
-        attribute_names = @record.attribute_names
-
-        if options[:only]
-          options.delete(:except)
-          attribute_names = attribute_names & Array(options[:only]).collect { |n| n.to_s }
-        else
-          options[:except] = Array(options[:except]) | Array(@record.class.inheritance_column)
-          attribute_names = attribute_names - options[:except].collect { |n| n.to_s }
-        end
-
-        attribute_names
-      end
-
-      def serializable_method_names
-        Array(options[:methods]).inject([]) do |method_attributes, name|
-          method_attributes << name if @record.respond_to?(name.to_s)
-          method_attributes
-        end
-      end
-
-      def serializable_names
-        serializable_attribute_names + serializable_method_names
-      end
-
-      # Add associations specified via the <tt>:includes</tt> option.
-      # Expects a block that takes as arguments:
-      #   +association+ - name of the association
-      #   +records+     - the association record(s) to be serialized
-      #   +opts+        - options for the association records
-      def add_includes(&block)
-        if include_associations = options.delete(:include)
-          base_only_or_except = { :except => options[:except],
-                                  :only => options[:only] }
-
-          include_has_options = include_associations.is_a?(Hash)
-          associations = include_has_options ? include_associations.keys : Array(include_associations)
-
-          for association in associations
-            records = case @record.class.reflect_on_association(association).macro
-            when :has_many, :has_and_belongs_to_many
-              @record.send(association).to_a
-            when :has_one, :belongs_to
-              @record.send(association)
-            end
-
-            unless records.nil?
-              association_options = include_has_options ? include_associations[association] : base_only_or_except
-              opts = options.merge(association_options)
-              yield(association, records, opts)
-            end
-          end
-
-          options[:include] = include_associations
-        end
-      end
-
-      def serializable_record
-        returning(serializable_record = {}) do
-          serializable_names.each { |name| serializable_record[name] = @record.send(name) }
-          add_includes do |association, records, opts|
-            if records.is_a?(Enumerable)
-              serializable_record[association] = records.collect { |r| self.class.new(r, opts).serializable_record }
-            else
-              serializable_record[association] = self.class.new(records, opts).serializable_record
-            end
-          end
-        end
-      end
-
-      def serialize
-        # overwrite to implement
-      end
-
-      def to_s(&block)
-        serialize(&block)
-      end
-    end
-  end
-end
-
-require 'active_record/serializers/xml_serializer'
-require 'active_record/serializers/json_serializer'
@@ -1,91 +0,0 @@
-require 'active_support/json'
-require 'active_support/core_ext/module/model_naming'
-
-module ActiveRecord #:nodoc:
-  module Serialization
-    def self.included(base)
-      base.cattr_accessor :include_root_in_json, :instance_writer => false
-    end
-
-    # Returns a JSON string representing the model. Some configuration is
-    # available through +options+.
-    #
-    # The option <tt>ActiveRecord::Base.include_root_in_json</tt> controls the
-    # top-level behavior of to_json. In a new Rails application, it is set to 
-    # <tt>true</tt> in initializers/new_rails_defaults.rb. When it is <tt>true</tt>,
-    # to_json will emit a single root node named after the object's type. For example:
-    #
-    #   konata = User.find(1)
-    #   ActiveRecord::Base.include_root_in_json = true
-    #   konata.to_json
-    #   # => { "user": {"id": 1, "name": "Konata Izumi", "age": 16,
-    #                   "created_at": "2006/08/01", "awesome": true} }
-    #
-    #   ActiveRecord::Base.include_root_in_json = false
-    #   konata.to_json
-    #   # => {"id": 1, "name": "Konata Izumi", "age": 16,
-    #         "created_at": "2006/08/01", "awesome": true}
-    #
-    # The remainder of the examples in this section assume include_root_in_json is set to
-    # <tt>false</tt>.
-    #
-    # Without any +options+, the returned JSON string will include all
-    # the model's attributes. For example:
-    #
-    #   konata = User.find(1)
-    #   konata.to_json
-    #   # => {"id": 1, "name": "Konata Izumi", "age": 16,
-    #         "created_at": "2006/08/01", "awesome": true}
-    #
-    # The <tt>:only</tt> and <tt>:except</tt> options can be used to limit the attributes
-    # included, and work similar to the +attributes+ method. For example:
-    #
-    #   konata.to_json(:only => [ :id, :name ])
-    #   # => {"id": 1, "name": "Konata Izumi"}
-    #
-    #   konata.to_json(:except => [ :id, :created_at, :age ])
-    #   # => {"name": "Konata Izumi", "awesome": true}
-    #
-    # To include any methods on the model, use <tt>:methods</tt>.
-    #
-    #   konata.to_json(:methods => :permalink)
-    #   # => {"id": 1, "name": "Konata Izumi", "age": 16,
-    #         "created_at": "2006/08/01", "awesome": true,
-    #         "permalink": "1-konata-izumi"}
-    #
-    # To include associations, use <tt>:include</tt>.
-    #
-    #   konata.to_json(:include => :posts)
-    #   # => {"id": 1, "name": "Konata Izumi", "age": 16,
-    #         "created_at": "2006/08/01", "awesome": true,
-    #         "posts": [{"id": 1, "author_id": 1, "title": "Welcome to the weblog"},
-    #                   {"id": 2, author_id: 1, "title": "So I was thinking"}]}
-    #
-    # 2nd level and higher order associations work as well:
-    #
-    #   konata.to_json(:include => { :posts => {
-    #                                  :include => { :comments => {
-    #                                                :only => :body } },
-    #                                  :only => :title } })
-    #   # => {"id": 1, "name": "Konata Izumi", "age": 16,
-    #         "created_at": "2006/08/01", "awesome": true,
-    #         "posts": [{"comments": [{"body": "1st post!"}, {"body": "Second!"}],
-    #                    "title": "Welcome to the weblog"},
-    #                   {"comments": [{"body": "Don't think too hard"}],
-    #                    "title": "So I was thinking"}]}
-    def to_json(options = {})
-      super
-    end
-
-    def as_json(options = nil) #:nodoc:
-      hash = Serializer.new(self, options).serializable_record
-      hash = { self.class.model_name.element => hash } if include_root_in_json
-      hash
-    end
-
-    def from_json(json)
-      self.attributes = ActiveSupport::JSON.decode(json)
-      self
-    end
-  end
-end
@@ -1,376 +0,0 @@
-module ActiveRecord #:nodoc:
-  module Serialization
-    # Builds an XML document to represent the model. Some configuration is
-    # available through +options+. However more complicated cases should
-    # override ActiveRecord::Base#to_xml.
-    #
-    # By default the generated XML document will include the processing
-    # instruction and all the object's attributes. For example:
-    #
-    #   <?xml version="1.0" encoding="UTF-8"?>
-    #   <topic>
-    #     <title>The First Topic</title>
-    #     <author-name>David</author-name>
-    #     <id type="integer">1</id>
-    #     <approved type="boolean">false</approved>
-    #     <replies-count type="integer">0</replies-count>
-    #     <bonus-time type="datetime">2000-01-01T08:28:00+12:00</bonus-time>
-    #     <written-on type="datetime">2003-07-16T09:28:00+1200</written-on>
-    #     <content>Have a nice day</content>
-    #     <author-email-address>david@loudthinking.com</author-email-address>
-    #     <parent-id></parent-id>
-    #     <last-read type="date">2004-04-15</last-read>
-    #   </topic>
-    #
-    # This behavior can be controlled with <tt>:only</tt>, <tt>:except</tt>,
-    # <tt>:skip_instruct</tt>, <tt>:skip_types</tt>, <tt>:dasherize</tt> and <tt>:camelize</tt> .
-    # The <tt>:only</tt> and <tt>:except</tt> options are the same as for the
-    # +attributes+ method. The default is to dasherize all column names, but you
-    # can disable this setting <tt>:dasherize</tt> to +false+. Setting <tt>:camelize</tt>
-    # to +true+ will camelize all column names - this also overrides <tt>:dasherize</tt>.
-    # To not have the column type included in the XML output set <tt>:skip_types</tt> to +true+.
-    #
-    # For instance:
-    #
-    #   topic.to_xml(:skip_instruct => true, :except => [ :id, :bonus_time, :written_on, :replies_count ])
-    #
-    #   <topic>
-    #     <title>The First Topic</title>
-    #     <author-name>David</author-name>
-    #     <approved type="boolean">false</approved>
-    #     <content>Have a nice day</content>
-    #     <author-email-address>david@loudthinking.com</author-email-address>
-    #     <parent-id></parent-id>
-    #     <last-read type="date">2004-04-15</last-read>
-    #   </topic>
-    #
-    # To include first level associations use <tt>:include</tt>:
-    #
-    #   firm.to_xml :include => [ :account, :clients ]
-    #
-    #   <?xml version="1.0" encoding="UTF-8"?>
-    #   <firm>
-    #     <id type="integer">1</id>
-    #     <rating type="integer">1</rating>
-    #     <name>37signals</name>
-    #     <clients type="array">
-    #       <client>
-    #         <rating type="integer">1</rating>
-    #         <name>Summit</name>
-    #       </client>
-    #       <client>
-    #         <rating type="integer">1</rating>
-    #         <name>Microsoft</name>
-    #       </client>
-    #     </clients>
-    #     <account>
-    #       <id type="integer">1</id>
-    #       <credit-limit type="integer">50</credit-limit>
-    #     </account>
-    #   </firm>
-    #
-    # To include deeper levels of associations pass a hash like this:
-    #
-    #   firm.to_xml :include => {:account => {}, :clients => {:include => :address}}
-    #   <?xml version="1.0" encoding="UTF-8"?>
-    #   <firm>
-    #     <id type="integer">1</id>
-    #     <rating type="integer">1</rating>
-    #     <name>37signals</name>
-    #     <clients type="array">
-    #       <client>
-    #         <rating type="integer">1</rating>
-    #         <name>Summit</name>
-    #         <address>
-    #           ...
-    #         </address>
-    #       </client>
-    #       <client>
-    #         <rating type="integer">1</rating>
-    #         <name>Microsoft</name>
-    #         <address>
-    #           ...
-    #         </address>
-    #       </client>
-    #     </clients>
-    #     <account>
-    #       <id type="integer">1</id>
-    #       <credit-limit type="integer">50</credit-limit>
-    #     </account>
-    #   </firm>
-    #
-    # To include any methods on the model being called use <tt>:methods</tt>:
-    #
-    #   firm.to_xml :methods => [ :calculated_earnings, :real_earnings ]
-    #
-    #   <firm>
-    #     # ... normal attributes as shown above ...
-    #     <calculated-earnings>100000000000000000</calculated-earnings>
-    #     <real-earnings>5</real-earnings>
-    #   </firm>
-    #
-    # To call any additional Procs use <tt>:procs</tt>. The Procs are passed a
-    # modified version of the options hash that was given to +to_xml+:
-    #
-    #   proc = Proc.new { |options| options[:builder].tag!('abc', 'def') }
-    #   firm.to_xml :procs => [ proc ]
-    #
-    #   <firm>
-    #     # ... normal attributes as shown above ...
-    #     <abc>def</abc>
-    #   </firm>
-    #
-    # Alternatively, you can yield the builder object as part of the +to_xml+ call:
-    #
-    #   firm.to_xml do |xml|
-    #     xml.creator do
-    #       xml.first_name "David"
-    #       xml.last_name "Heinemeier Hansson"
-    #     end
-    #   end
-    #
-    #   <firm>
-    #     # ... normal attributes as shown above ...
-    #     <creator>
-    #       <first_name>David</first_name>
-    #       <last_name>Heinemeier Hansson</last_name>
-    #     </creator>
-    #   </firm>
-    #
-    # As noted above, you may override +to_xml+ in your ActiveRecord::Base
-    # subclasses to have complete control about what's generated. The general
-    # form of doing this is:
-    #
-    #   class IHaveMyOwnXML < ActiveRecord::Base
-    #     def to_xml(options = {})
-    #       options[:indent] ||= 2
-    #       xml = options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent])
-    #       xml.instruct! unless options[:skip_instruct]
-    #       xml.level_one do
-    #         xml.tag!(:second_level, 'content')
-    #       end
-    #     end
-    #   end
-    def to_xml(options = {}, &block)
-      serializer = XmlSerializer.new(self, options)
-      block_given? ? serializer.to_s(&block) : serializer.to_s
-    end
-
-    def from_xml(xml)
-      self.attributes = Hash.from_xml(xml).values.first
-      self
-    end
-  end
-
-  class XmlSerializer < ActiveRecord::Serialization::Serializer #:nodoc:
-    def builder
-      @builder ||= begin
-        options[:indent] ||= 2
-        builder = options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent])
-
-        unless options[:skip_instruct]
-          builder.instruct!
-          options[:skip_instruct] = true
-        end
-
-        builder
-      end
-    end
-
-    def root
-      root = (options[:root] || @record.class.model_name.singular).to_s
-      reformat_name(root)
-    end
-
-    def dasherize?
-      !options.has_key?(:dasherize) || options[:dasherize]
-    end
-
-    def camelize?
-      options.has_key?(:camelize) && options[:camelize]
-    end
-
-    def reformat_name(name)
-      name = name.camelize if camelize?
-      dasherize? ? name.dasherize : name
-    end
-
-    def serializable_attributes
-      serializable_attribute_names.collect { |name| Attribute.new(name, @record) }
-    end
-
-    def serializable_method_attributes
-      Array(options[:methods]).inject([]) do |method_attributes, name|
-        method_attributes << MethodAttribute.new(name.to_s, @record) if @record.respond_to?(name.to_s)
-        method_attributes
-      end
-    end
-
-    def add_attributes
-      (serializable_attributes + serializable_method_attributes).each do |attribute|
-        add_tag(attribute)
-      end
-    end
-
-    def add_procs
-      if procs = options.delete(:procs)
-        [ *procs ].each do |proc|
-          proc.call(options)
-        end
-      end
-    end
-
-    def add_tag(attribute)
-      builder.tag!(
-        reformat_name(attribute.name),
-        attribute.value.to_s,
-        attribute.decorations(!options[:skip_types])
-      )
-    end
-
-    def add_associations(association, records, opts)
-      if records.is_a?(Enumerable)
-        tag = reformat_name(association.to_s)
-        type = options[:skip_types] ? {} : {:type => "array"}
-
-        if records.empty?
-          builder.tag!(tag, type)
-        else
-          builder.tag!(tag, type) do
-            association_name = association.to_s.singularize
-            records.each do |record|
-              if options[:skip_types]
-                record_type = {}
-              else
-                record_class = (record.class.to_s.underscore == association_name) ? nil : record.class.name
-                record_type = {:type => record_class}
-              end
-
-              record.to_xml opts.merge(:root => association_name).merge(record_type)
-            end
-          end
-        end
-      else
-        if record = @record.send(association)
-          record.to_xml(opts.merge(:root => association))
-        end
-      end
-    end
-
-    def serialize
-      args = [root]
-      if options[:namespace]
-        args << {:xmlns=>options[:namespace]}
-      end
-
-      if options[:type]
-        args << {:type=>options[:type]}
-      end
-
-      builder.tag!(*args) do
-        add_attributes
-        procs = options.delete(:procs)
-        add_includes { |association, records, opts| add_associations(association, records, opts) }
-        options[:procs] = procs
-        add_procs
-        yield builder if block_given?
-      end
-    end
-
-    class Attribute #:nodoc:
-      attr_reader :name, :value, :type
-
-      def initialize(name, record)
-        @name, @record = name, record
-
-        @type  = compute_type
-        @value = compute_value
-      end
-
-      # There is a significant speed improvement if the value
-      # does not need to be escaped, as <tt>tag!</tt> escapes all values
-      # to ensure that valid XML is generated. For known binary
-      # values, it is at least an order of magnitude faster to
-      # Base64 encode binary values and directly put them in the
-      # output XML than to pass the original value or the Base64
-      # encoded value to the <tt>tag!</tt> method. It definitely makes
-      # no sense to Base64 encode the value and then give it to
-      # <tt>tag!</tt>, since that just adds additional overhead.
-      def needs_encoding?
-        ![ :binary, :date, :datetime, :boolean, :float, :integer ].include?(type)
-      end
-
-      def decorations(include_types = true)
-        decorations = {}
-
-        if type == :binary
-          decorations[:encoding] = 'base64'
-        end
-
-        if include_types && type != :string
-          decorations[:type] = type
-        end
-
-        if value.nil?
-          decorations[:nil] = true
-        end
-
-        decorations
-      end
-
-      protected
-       def force_binary_encoding(obj)
-        	return nil if not obj
-        	return obj if not "X".respond_to?('encode')
-
-			case obj.class.to_s
-			when 'String'
-				return obj.encode(::Encoding::BINARY, { :invalid => :replace, :undef => :replace, :replace => '?' })
-			when 'Hash'
-				obj.each_pair do |k,v|
-					obj[k] = force_binary_encoding(v)
-				end
-			when 'Array'
-				obj.each_index do |i|
-					obj[i] = force_binary_encoding(obj[i])
-				end
-			end
-			obj
-        end
-
-        def compute_type
-          type = if @record.class.serialized_attributes.has_key?(name)
-                   :yaml
-                 else
-                   @record.class.columns_hash[name].try(:type)
-                 end
-
-          case type
-            when :text
-              :string
-            when :time
-              :datetime
-            else
-              type
-          end
-        end
-
-        def compute_value
-          value = force_binary_encoding(@record.send(name))
-
-          if formatter = Hash::XML_FORMATTING[type.to_s]
-            value ? formatter.call(value) : nil
-          else
-            value
-          end
-        end
-    end
-
-    class MethodAttribute < Attribute #:nodoc:
-      protected
-        def compute_type
-          Hash::XML_TYPE_NAMES[@record.send(name).class.name] || :string
-        end
-    end
-  end
-end
@@ -1,326 +0,0 @@
-module ActiveRecord
-  # A session store backed by an Active Record class.  A default class is
-  # provided, but any object duck-typing to an Active Record Session class
-  # with text +session_id+ and +data+ attributes is sufficient.
-  #
-  # The default assumes a +sessions+ tables with columns:
-  #   +id+ (numeric primary key),
-  #   +session_id+ (text, or longtext if your session data exceeds 65K), and
-  #   +data+ (text or longtext; careful if your session data exceeds 65KB).
-  # The +session_id+ column should always be indexed for speedy lookups.
-  # Session data is marshaled to the +data+ column in Base64 format.
-  # If the data you write is larger than the column's size limit,
-  # ActionController::SessionOverflowError will be raised.
-  #
-  # You may configure the table name, primary key, and data column.
-  # For example, at the end of <tt>config/environment.rb</tt>:
-  #   ActiveRecord::SessionStore::Session.table_name = 'legacy_session_table'
-  #   ActiveRecord::SessionStore::Session.primary_key = 'session_id'
-  #   ActiveRecord::SessionStore::Session.data_column_name = 'legacy_session_data'
-  # Note that setting the primary key to the +session_id+ frees you from
-  # having a separate +id+ column if you don't want it.  However, you must
-  # set <tt>session.model.id = session.session_id</tt> by hand!  A before filter
-  # on ApplicationController is a good place.
-  #
-  # Since the default class is a simple Active Record, you get timestamps
-  # for free if you add +created_at+ and +updated_at+ datetime columns to
-  # the +sessions+ table, making periodic session expiration a snap.
-  #
-  # You may provide your own session class implementation, whether a
-  # feature-packed Active Record or a bare-metal high-performance SQL
-  # store, by setting
-  #   ActiveRecord::SessionStore.session_class = MySessionClass
-  # You must implement these methods:
-  #   self.find_by_session_id(session_id)
-  #   initialize(hash_of_session_id_and_data)
-  #   attr_reader :session_id
-  #   attr_accessor :data
-  #   save
-  #   destroy
-  #
-  # The example SqlBypass class is a generic SQL session store.  You may
-  # use it as a basis for high-performance database-specific stores.
-  class SessionStore < ActionController::Session::AbstractStore
-    # The default Active Record class.
-    class Session < ActiveRecord::Base
-      ##
-      # :singleton-method:
-      # Customizable data column name.  Defaults to 'data'.
-      cattr_accessor :data_column_name
-      self.data_column_name = 'data'
-
-      before_save :marshal_data!
-      before_save :raise_on_session_data_overflow!
-
-      class << self
-        def data_column_size_limit
-          @data_column_size_limit ||= columns_hash[@@data_column_name].limit
-        end
-
-        # Hook to set up sessid compatibility.
-        def find_by_session_id(session_id)
-          setup_sessid_compatibility!
-          find_by_session_id(session_id)
-        end
-
-        def marshal(data)
-          ActiveSupport::Base64.encode64(Marshal.dump(data)) if data
-        end
-
-        def unmarshal(data)
-          Marshal.load(ActiveSupport::Base64.decode64(data)) if data
-        end
-
-        def create_table!
-          connection.execute <<-end_sql
-            CREATE TABLE #{table_name} (
-              id INTEGER PRIMARY KEY,
-              #{connection.quote_column_name('session_id')} TEXT UNIQUE,
-              #{connection.quote_column_name(@@data_column_name)} TEXT(255)
-            )
-          end_sql
-        end
-
-        def drop_table!
-          connection.execute "DROP TABLE #{table_name}"
-        end
-
-        private
-          # Compatibility with tables using sessid instead of session_id.
-          def setup_sessid_compatibility!
-            # Reset column info since it may be stale.
-            reset_column_information
-            if columns_hash['sessid']
-              def self.find_by_session_id(*args)
-                find_by_sessid(*args)
-              end
-
-              define_method(:session_id)  { sessid }
-              define_method(:session_id=) { |session_id| self.sessid = session_id }
-            else
-              def self.find_by_session_id(session_id)
-                find :first, :conditions => {:session_id=>session_id}
-              end
-            end
-          end
-      end
-
-      # Lazy-unmarshal session state.
-      def data
-        @data ||= self.class.unmarshal(read_attribute(@@data_column_name)) || {}
-      end
-
-      attr_writer :data
-
-      # Has the session been loaded yet?
-      def loaded?
-        !!@data
-      end
-
-      private
-        def marshal_data!
-          return false if !loaded?
-          write_attribute(@@data_column_name, self.class.marshal(self.data))
-        end
-
-        # Ensures that the data about to be stored in the database is not
-        # larger than the data storage column. Raises
-        # ActionController::SessionOverflowError.
-        def raise_on_session_data_overflow!
-          return false if !loaded?
-          limit = self.class.data_column_size_limit
-          if loaded? and limit and read_attribute(@@data_column_name).size > limit
-            raise ActionController::SessionOverflowError
-          end
-        end
-    end
-
-    # A barebones session store which duck-types with the default session
-    # store but bypasses Active Record and issues SQL directly.  This is
-    # an example session model class meant as a basis for your own classes.
-    #
-    # The database connection, table name, and session id and data columns
-    # are configurable class attributes.  Marshaling and unmarshaling
-    # are implemented as class methods that you may override.  By default,
-    # marshaling data is
-    #
-    #   ActiveSupport::Base64.encode64(Marshal.dump(data))
-    #
-    # and unmarshaling data is
-    #
-    #   Marshal.load(ActiveSupport::Base64.decode64(data))
-    #
-    # This marshaling behavior is intended to store the widest range of
-    # binary session data in a +text+ column.  For higher performance,
-    # store in a +blob+ column instead and forgo the Base64 encoding.
-    class SqlBypass
-      ##
-      # :singleton-method:
-      # Use the ActiveRecord::Base.connection by default.
-      cattr_accessor :connection
-
-      ##
-      # :singleton-method:
-      # The table name defaults to 'sessions'.
-      cattr_accessor :table_name
-      @@table_name = 'sessions'
-
-      ##
-      # :singleton-method:
-      # The session id field defaults to 'session_id'.
-      cattr_accessor :session_id_column
-      @@session_id_column = 'session_id'
-
-      ##
-      # :singleton-method:
-      # The data field defaults to 'data'.
-      cattr_accessor :data_column
-      @@data_column = 'data'
-
-      class << self
-        def connection
-          @@connection ||= ActiveRecord::Base.connection
-        end
-
-        # Look up a session by id and unmarshal its data if found.
-        def find_by_session_id(session_id)
-          if record = @@connection.select_one("SELECT * FROM #{@@table_name} WHERE #{@@session_id_column}=#{@@connection.quote(session_id)}")
-            new(:session_id => session_id, :marshaled_data => record['data'])
-          end
-        end
-
-        def marshal(data)
-          ActiveSupport::Base64.encode64(Marshal.dump(data)) if data
-        end
-
-        def unmarshal(data)
-          Marshal.load(ActiveSupport::Base64.decode64(data)) if data
-        end
-
-        def create_table!
-          @@connection.execute <<-end_sql
-            CREATE TABLE #{table_name} (
-              id INTEGER PRIMARY KEY,
-              #{@@connection.quote_column_name(session_id_column)} TEXT UNIQUE,
-              #{@@connection.quote_column_name(data_column)} TEXT
-            )
-          end_sql
-        end
-
-        def drop_table!
-          @@connection.execute "DROP TABLE #{table_name}"
-        end
-      end
-
-      attr_reader :session_id
-      attr_writer :data
-
-      # Look for normal and marshaled data, self.find_by_session_id's way of
-      # telling us to postpone unmarshaling until the data is requested.
-      # We need to handle a normal data attribute in case of a new record.
-      def initialize(attributes)
-        @session_id, @data, @marshaled_data = attributes[:session_id], attributes[:data], attributes[:marshaled_data]
-        @new_record = @marshaled_data.nil?
-      end
-
-      def new_record?
-        @new_record
-      end
-
-      # Lazy-unmarshal session state.
-      def data
-        unless @data
-          if @marshaled_data
-            @data, @marshaled_data = self.class.unmarshal(@marshaled_data) || {}, nil
-          else
-            @data = {}
-          end
-        end
-        @data
-      end
-
-      def loaded?
-        !!@data
-      end
-
-      def save
-        return false if !loaded?
-        marshaled_data = self.class.marshal(data)
-
-        if @new_record
-          @new_record = false
-          @@connection.update <<-end_sql, 'Create session'
-            INSERT INTO #{@@table_name} (
-              #{@@connection.quote_column_name(@@session_id_column)},
-              #{@@connection.quote_column_name(@@data_column)} )
-            VALUES (
-              #{@@connection.quote(session_id)},
-              #{@@connection.quote(marshaled_data)} )
-          end_sql
-        else
-          @@connection.update <<-end_sql, 'Update session'
-            UPDATE #{@@table_name}
-            SET #{@@connection.quote_column_name(@@data_column)}=#{@@connection.quote(marshaled_data)}
-            WHERE #{@@connection.quote_column_name(@@session_id_column)}=#{@@connection.quote(session_id)}
-          end_sql
-        end
-      end
-
-      def destroy
-        unless @new_record
-          @@connection.delete <<-end_sql, 'Destroy session'
-            DELETE FROM #{@@table_name}
-            WHERE #{@@connection.quote_column_name(@@session_id_column)}=#{@@connection.quote(session_id)}
-          end_sql
-        end
-      end
-    end
-
-    # The class used for session storage.  Defaults to
-    # ActiveRecord::SessionStore::Session
-    cattr_accessor :session_class
-    self.session_class = Session
-
-    SESSION_RECORD_KEY = 'rack.session.record'.freeze
-
-    private
-      def get_session(env, sid)
-        Base.silence do
-          sid ||= generate_sid
-          session = find_session(sid)
-          env[SESSION_RECORD_KEY] = session
-          [sid, session.data]
-        end
-      end
-
-      def set_session(env, sid, session_data)
-        Base.silence do
-          record = get_session_model(env, sid)
-          record.data = session_data
-          return false unless record.save
-
-          session_data = record.data
-          if session_data && session_data.respond_to?(:each_value)
-            session_data.each_value do |obj|
-              obj.clear_association_cache if obj.respond_to?(:clear_association_cache)
-            end
-          end
-        end
-
-        return true
-      end
-      
-      def get_session_model(env, sid)
-        if env[ENV_SESSION_OPTIONS_KEY][:id].nil?
-          env[SESSION_RECORD_KEY] = find_session(sid)
-        else
-          env[SESSION_RECORD_KEY] ||= find_session(sid)
-        end
-      end
-
-      def find_session(id)
-        @@session_class.find_by_session_id(id) ||
-          @@session_class.new(:session_id => id, :data => {})
-      end
-  end
-end
@@ -1,66 +0,0 @@
-require "active_support/test_case"
-
-module ActiveRecord
-  class TestCase < ActiveSupport::TestCase #:nodoc:
-    def assert_date_from_db(expected, actual, message = nil)
-      # SybaseAdapter doesn't have a separate column type just for dates,
-      # so the time is in the string and incorrectly formatted
-      if current_adapter?(:SybaseAdapter)
-        assert_equal expected.to_s, actual.to_date.to_s, message
-      else
-        assert_equal expected.to_s, actual.to_s, message
-      end
-    end
-
-    def assert_sql(*patterns_to_match)
-      $queries_executed = []
-      yield
-    ensure
-      failed_patterns = []
-      patterns_to_match.each do |pattern|
-        failed_patterns << pattern unless $queries_executed.any?{ |sql| pattern === sql }
-      end
-      assert failed_patterns.empty?, "Query pattern(s) #{failed_patterns.map(&:inspect).join(', ')} not found."
-    end
-
-    def assert_queries(num = 1)
-      $queries_executed = []
-      yield
-    ensure
-      %w{ BEGIN COMMIT }.each { |x| $queries_executed.delete(x) }
-      assert_equal num, $queries_executed.size, "#{$queries_executed.size} instead of #{num} queries were executed.#{$queries_executed.size == 0 ? '' : "\nQueries:\n#{$queries_executed.join("\n")}"}"
-    end
-
-    def assert_no_queries(&block)
-      assert_queries(0, &block)
-    end
-
-    def self.use_concurrent_connections
-      setup :connection_allow_concurrency_setup
-      teardown :connection_allow_concurrency_teardown
-    end
-
-    def connection_allow_concurrency_setup
-      @connection = ActiveRecord::Base.remove_connection
-      ActiveRecord::Base.establish_connection(@connection.merge({:allow_concurrency => true}))
-    end
-
-    def connection_allow_concurrency_teardown
-      ActiveRecord::Base.clear_all_connections!
-      ActiveRecord::Base.establish_connection(@connection)
-    end
-
-    def with_kcode(kcode)
-      if RUBY_VERSION < '1.9'
-        orig_kcode, $KCODE = $KCODE, kcode
-        begin
-          yield
-        ensure
-          $KCODE = orig_kcode
-        end
-      else
-        yield
-      end
-    end
-  end
-end
@@ -1,71 +0,0 @@
-module ActiveRecord
-  # Active Record automatically timestamps create and update operations if the table has fields
-  # named created_at/created_on or updated_at/updated_on.
-  #
-  # Timestamping can be turned off by setting
-  #   <tt>ActiveRecord::Base.record_timestamps = false</tt>
-  #
-  # Timestamps are in the local timezone by default but you can use UTC by setting
-  #   <tt>ActiveRecord::Base.default_timezone = :utc</tt>
-  module Timestamp
-    def self.included(base) #:nodoc:
-      base.alias_method_chain :create, :timestamps
-      base.alias_method_chain :update, :timestamps
-
-      base.class_inheritable_accessor :record_timestamps, :instance_writer => false
-      base.record_timestamps = true
-    end
-    
-    # Saves the record with the updated_at/on attributes set to the current time.
-    # If the save fails because of validation errors, an ActiveRecord::RecordInvalid exception is raised.
-    # If an attribute name is passed, that attribute is used for the touch instead of the updated_at/on attributes.
-    #
-    # Examples:
-    #
-    #   product.touch               # updates updated_at
-    #   product.touch(:designed_at) # updates the designed_at attribute
-    def touch(attribute = nil)
-      current_time = current_time_from_proper_timezone
-
-      if attribute
-        write_attribute(attribute, current_time)
-      else
-        write_attribute('updated_at', current_time) if respond_to?(:updated_at)
-        write_attribute('updated_on', current_time) if respond_to?(:updated_on)
-      end
-
-      save!
-    end
-
-
-    private
-      def create_with_timestamps #:nodoc:
-        if record_timestamps
-          current_time = current_time_from_proper_timezone
-
-          write_attribute('created_at', current_time) if respond_to?(:created_at) && created_at.nil?
-          write_attribute('created_on', current_time) if respond_to?(:created_on) && created_on.nil?
-
-          write_attribute('updated_at', current_time) if respond_to?(:updated_at) && updated_at.nil?
-          write_attribute('updated_on', current_time) if respond_to?(:updated_on) && updated_on.nil?
-        end
-
-        create_without_timestamps
-      end
-
-      def update_with_timestamps(*args) #:nodoc:
-        if record_timestamps && (!partial_updates? || changed?)
-          current_time = current_time_from_proper_timezone
-
-          write_attribute('updated_at', current_time) if respond_to?(:updated_at)
-          write_attribute('updated_on', current_time) if respond_to?(:updated_on)
-        end
-
-        update_without_timestamps(*args)
-      end
-      
-      def current_time_from_proper_timezone
-        self.class.default_timezone == :utc ? Time.now.utc : Time.now
-      end
-  end
-end
@@ -1,235 +0,0 @@
-require 'thread'
-
-module ActiveRecord
-  # See ActiveRecord::Transactions::ClassMethods for documentation.
-  module Transactions
-    class TransactionError < ActiveRecordError # :nodoc:
-    end
-
-    def self.included(base)
-      base.extend(ClassMethods)
-
-      base.class_eval do
-        [:destroy, :save, :save!].each do |method|
-          alias_method_chain method, :transactions
-        end
-      end
-    end
-
-    # Transactions are protective blocks where SQL statements are only permanent
-    # if they can all succeed as one atomic action. The classic example is a
-    # transfer between two accounts where you can only have a deposit if the
-    # withdrawal succeeded and vice versa. Transactions enforce the integrity of
-    # the database and guard the data against program errors or database
-    # break-downs. So basically you should use transaction blocks whenever you
-    # have a number of statements that must be executed together or not at all.
-    # Example:
-    #
-    #   ActiveRecord::Base.transaction do
-    #     david.withdrawal(100)
-    #     mary.deposit(100)
-    #   end
-    #
-    # This example will only take money from David and give to Mary if neither
-    # +withdrawal+ nor +deposit+ raises an exception. Exceptions will force a
-    # ROLLBACK that returns the database to the state before the transaction was
-    # begun. Be aware, though, that the objects will _not_ have their instance
-    # data returned to their pre-transactional state.
-    #
-    # == Different Active Record classes in a single transaction
-    #
-    # Though the transaction class method is called on some Active Record class,
-    # the objects within the transaction block need not all be instances of
-    # that class. This is because transactions are per-database connection, not
-    # per-model.
-    #
-    # In this example a <tt>Balance</tt> record is transactionally saved even
-    # though <tt>transaction</tt> is called on the <tt>Account</tt> class:
-    #
-    #   Account.transaction do
-    #     balance.save!
-    #     account.save!
-    #   end
-    #
-    # Note that the +transaction+ method is also available as a model instance
-    # method. For example, you can also do this:
-    #
-    #   balance.transaction do
-    #     balance.save!
-    #     account.save!
-    #   end
-    #
-    # == Transactions are not distributed across database connections
-    #
-    # A transaction acts on a single database connection.  If you have
-    # multiple class-specific databases, the transaction will not protect
-    # interaction among them.  One workaround is to begin a transaction
-    # on each class whose models you alter:
-    #
-    #   Student.transaction do
-    #     Course.transaction do
-    #       course.enroll(student)
-    #       student.units += course.units
-    #     end
-    #   end
-    #
-    # This is a poor solution, but full distributed transactions are beyond
-    # the scope of Active Record.
-    #
-    # == Save and destroy are automatically wrapped in a transaction
-    #
-    # Both Base#save and Base#destroy come wrapped in a transaction that ensures
-    # that whatever you do in validations or callbacks will happen under the
-    # protected cover of a transaction. So you can use validations to check for
-    # values that the transaction depends on or you can raise exceptions in the
-    # callbacks to rollback, including <tt>after_*</tt> callbacks.
-    #
-    # == Exception handling and rolling back
-    #
-    # Also have in mind that exceptions thrown within a transaction block will
-    # be propagated (after triggering the ROLLBACK), so you should be ready to
-    # catch those in your application code.
-    #
-    # One exception is the ActiveRecord::Rollback exception, which will trigger
-    # a ROLLBACK when raised, but not be re-raised by the transaction block.
-    #
-    # *Warning*: one should not catch ActiveRecord::StatementInvalid exceptions
-    # inside a transaction block. StatementInvalid exceptions indicate that an
-    # error occurred at the database level, for example when a unique constraint
-    # is violated. On some database systems, such as PostgreSQL, database errors
-    # inside a transaction causes the entire transaction to become unusable
-    # until it's restarted from the beginning. Here is an example which
-    # demonstrates the problem:
-    #
-    #   # Suppose that we have a Number model with a unique column called 'i'.
-    #   Number.transaction do
-    #     Number.create(:i => 0)
-    #     begin
-    #       # This will raise a unique constraint error...
-    #       Number.create(:i => 0)
-    #     rescue ActiveRecord::StatementInvalid
-    #       # ...which we ignore.
-    #     end
-    #     
-    #     # On PostgreSQL, the transaction is now unusable. The following
-    #     # statement will cause a PostgreSQL error, even though the unique
-    #     # constraint is no longer violated:
-    #     Number.create(:i => 1)
-    #     # => "PGError: ERROR:  current transaction is aborted, commands
-    #     #     ignored until end of transaction block"
-    #   end
-    #
-    # One should restart the entire transaction if a StatementError occurred.
-    #
-    # == Nested transactions
-    #
-    # #transaction calls can be nested. By default, this makes all database
-    # statements in the nested transaction block become part of the parent
-    # transaction. For example:
-    #
-    #   User.transaction do
-    #     User.create(:username => 'Kotori')
-    #     User.transaction do
-    #       User.create(:username => 'Nemu')
-    #       raise ActiveRecord::Rollback
-    #     end
-    #   end
-    #   
-    #   User.find(:all)  # => empty
-    #
-    # It is also possible to requires a sub-transaction by passing
-    # <tt>:requires_new => true</tt>.  If anything goes wrong, the
-    # database rolls back to the beginning of the sub-transaction
-    # without rolling back the parent transaction. For example:
-    #
-    #   User.transaction do
-    #     User.create(:username => 'Kotori')
-    #     User.transaction(:requires_new => true) do
-    #       User.create(:username => 'Nemu')
-    #       raise ActiveRecord::Rollback
-    #     end
-    #   end
-    #   
-    #   User.find(:all)  # => Returns only Kotori
-    #
-    # Most databases don't support true nested transactions. At the time of
-    # writing, the only database that we're aware of that supports true nested
-    # transactions, is MS-SQL. Because of this, Active Record emulates nested
-    # transactions by using savepoints. See
-    # http://dev.mysql.com/doc/refman/5.0/en/savepoints.html
-    # for more information about savepoints.
-    #
-    # === Caveats
-    #
-    # If you're on MySQL, then do not use DDL operations in nested transactions
-    # blocks that are emulated with savepoints. That is, do not execute statements
-    # like 'CREATE TABLE' inside such blocks. This is because MySQL automatically
-    # releases all savepoints upon executing a DDL operation. When #transaction
-    # is finished and tries to release the savepoint it created earlier, a
-    # database error will occur because the savepoint has already been
-    # automatically released. The following example demonstrates the problem:
-    # 
-    #   Model.connection.transaction do                           # BEGIN
-    #     Model.connection.transaction(:requires_new => true) do  # CREATE SAVEPOINT active_record_1
-    #       Model.connection.create_table(...)                    # active_record_1 now automatically released
-    #     end                                                     # RELEASE savepoint active_record_1
-    #                                                             # ^^^^ BOOM! database error!
-    #   end
-    module ClassMethods
-      # See ActiveRecord::Transactions::ClassMethods for detailed documentation.
-      def transaction(options = {}, &block)
-        # See the ConnectionAdapters::DatabaseStatements#transaction API docs.
-        connection.transaction(options, &block)
-      end
-    end
-
-    # See ActiveRecord::Transactions::ClassMethods for detailed documentation.
-    def transaction(&block)
-      self.class.transaction(&block)
-    end
-
-    def destroy_with_transactions #:nodoc:
-      with_transaction_returning_status(:destroy_without_transactions)
-    end
-
-    def save_with_transactions(perform_validation = true) #:nodoc:
-      rollback_active_record_state! { with_transaction_returning_status(:save_without_transactions, perform_validation) }
-    end
-
-    def save_with_transactions! #:nodoc:
-      rollback_active_record_state! { self.class.transaction { save_without_transactions! } }
-    end
-
-    # Reset id and @new_record if the transaction rolls back.
-    def rollback_active_record_state!
-      id_present = has_attribute?(self.class.primary_key)
-      previous_id = id
-      previous_new_record = new_record?
-      yield
-    rescue Exception
-      @new_record = previous_new_record
-      if id_present
-        self.id = previous_id
-      else
-        @attributes.delete(self.class.primary_key)
-        @attributes_cache.delete(self.class.primary_key)
-      end
-      raise
-    end
-
-    # Executes +method+ within a transaction and captures its return value as a
-    # status flag. If the status is true the transaction is committed, otherwise
-    # a ROLLBACK is issued. In any case the status flag is returned.
-    #
-    # This method is available within the context of an ActiveRecord::Base
-    # instance.
-    def with_transaction_returning_status(method, *args)
-      status = nil
-      self.class.transaction do
-        status = send(method, *args)
-        raise ActiveRecord::Rollback unless status
-      end
-      status
-    end
-  end
-end
@@ -1,1134 +0,0 @@
-module ActiveRecord
-  # Raised by <tt>save!</tt> and <tt>create!</tt> when the record is invalid.  Use the
-  # +record+ method to retrieve the record which did not validate.
-  #   begin
-  #     complex_operation_that_calls_save!_internally
-  #   rescue ActiveRecord::RecordInvalid => invalid
-  #     puts invalid.record.errors
-  #   end
-  class RecordInvalid < ActiveRecordError
-    attr_reader :record
-    def initialize(record)
-      @record = record
-      errors = @record.errors.full_messages.join(I18n.t('support.array.words_connector', :default => ', '))
-      super(I18n.t('activerecord.errors.messages.record_invalid', :errors => errors))
-    end
-  end
-
-  class Error
-    attr_accessor :base, :attribute, :type, :message, :options
-
-    def initialize(base, attribute, type = nil, options = {})
-      self.base      = base
-      self.attribute = attribute
-      self.type      = type || :invalid
-      self.options   = options
-      self.message   = options.delete(:message) || self.type
-    end
-
-    def message
-      # When type is a string, it means that we do not have to do a lookup, because
-      # the user already sent the "final" message.
-      type.is_a?(String) ? type : generate_message(default_options)
-    end
-
-    def full_message
-      attribute.to_s == 'base' ? message : generate_full_message(default_options)
-    end
-
-    alias :to_s :message
-
-    def value
-      @base.respond_to?(attribute) ? @base.send(attribute) : nil
-    end
-
-    protected
-
-      # Translates an error message in it's default scope (<tt>activerecord.errrors.messages</tt>).
-      # Error messages are first looked up in <tt>models.MODEL.attributes.ATTRIBUTE.MESSAGE</tt>, if it's not there,
-      # it's looked up in <tt>models.MODEL.MESSAGE</tt> and if that is not there it returns the translation of the
-      # default message (e.g. <tt>activerecord.errors.messages.MESSAGE</tt>). The translated model name,
-      # translated attribute name and the value are available for interpolation.
-      #
-      # When using inheritence in your models, it will check all the inherited models too, but only if the model itself
-      # hasn't been found. Say you have <tt>class Admin < User; end</tt> and you wanted the translation for the <tt>:blank</tt>
-      # error +message+ for the <tt>title</tt> +attribute+, it looks for these translations:
-      #
-      # <ol>
-      # <li><tt>activerecord.errors.models.admin.attributes.title.blank</tt></li>
-      # <li><tt>activerecord.errors.models.admin.blank</tt></li>
-      # <li><tt>activerecord.errors.models.user.attributes.title.blank</tt></li>
-      # <li><tt>activerecord.errors.models.user.blank</tt></li>
-      # <li><tt>activerecord.errors.messages.blank</tt></li>
-      # <li>any default you provided through the +options+ hash (in the activerecord.errors scope)</li>
-      # </ol>
-      def generate_message(options = {})
-        keys = @base.class.self_and_descendants_from_active_record.map do |klass|
-          [ :"models.#{klass.name.underscore}.attributes.#{attribute}.#{@message}",
-            :"models.#{klass.name.underscore}.#{@message}" ]
-        end.flatten
-
-        keys << options.delete(:default)
-        keys << :"messages.#{@message}"
-        keys << @message if @message.is_a?(String)
-        keys << @type unless @type == @message
-        keys.compact!
-
-        options.merge!(:default => keys)
-        I18n.translate(keys.shift, options)
-      end
-
-      # Wraps an error message into a full_message format.
-      #
-      # The default full_message format for any locale is <tt>"{{attribute}} {{message}}"</tt>.
-      # One can specify locale specific default full_message format by storing it as a
-      # translation for the key <tt>:"activerecord.errors.full_messages.format"</tt>.
-      #
-      # Additionally one can specify a validation specific error message format by
-      # storing a translation for <tt>:"activerecord.errors.full_messages.[message_key]"</tt>.
-      # E.g. the full_message format for any validation that uses :blank as a message
-      # key (such as validates_presence_of) can be stored to <tt>:"activerecord.errors.full_messages.blank".</tt>
-      #
-      # Because the message key used by a validation can be overwritten on the
-      # <tt>validates_*</tt> class macro level one can customize the full_message format for
-      # any particular validation:
-      #
-      #   # app/models/article.rb
-      #   class Article < ActiveRecord::Base
-      #     validates_presence_of :title, :message => :"title.blank"
-      #   end
-      #
-      #   # config/locales/en.yml
-      #   en:
-      #     activerecord:
-      #       errors:
-      #         full_messages:
-      #           title:
-      #             blank: This title is screwed!
-      def generate_full_message(options = {})
-        keys = [
-          :"full_messages.#{@message}",
-          :'full_messages.format',
-		  '%{attribute} %{message}'
-        ]
-        options.merge!(:default => keys, :message => self.message)
-        I18n.translate(keys.shift, options)
-      end
-
-      # Return user options with default options.
-      #
-      def default_options
-        options.reverse_merge :scope => [:activerecord, :errors],
-                              :model => @base.class.human_name,
-                              :attribute => @base.class.human_attribute_name(attribute.to_s),
-                              :value => value
-      end
-  end
-
-  # Active Record validation is reported to and from this object, which is used by Base#save to
-  # determine whether the object is in a valid state to be saved. See usage example in Validations.
-  class Errors
-    include Enumerable
-
-    class << self
-      def default_error_messages
-        ActiveSupport::Deprecation.warn("ActiveRecord::Errors.default_error_messages has been deprecated. Please use I18n.translate('activerecord.errors.messages').")
-        I18n.translate 'activerecord.errors.messages'
-      end
-    end
-
-    def initialize(base) # :nodoc:
-      @base = base
-      clear
-    end
-
-    # Adds an error to the base object instead of any particular attribute. This is used
-    # to report errors that don't tie to any specific attribute, but rather to the object
-    # as a whole. These error messages don't get prepended with any field name when iterating
-    # with +each_full+, so they should be complete sentences.
-    def add_to_base(msg)
-      add(:base, msg)
-    end
-
-    # Adds an error message (+messsage+) to the +attribute+, which will be returned on a call to <tt>on(attribute)</tt>
-    # for the same attribute and ensure that this error object returns false when asked if <tt>empty?</tt>. More than one
-    # error can be added to the same +attribute+ in which case an array will be returned on a call to <tt>on(attribute)</tt>.
-    # If no +messsage+ is supplied, :invalid is assumed.
-    # If +message+ is a Symbol, it will be translated, using the appropriate scope (see translate_error).
-    #
-    def add(attribute, message = nil, options = {})
-      options[:message] = options.delete(:default) if options.has_key?(:default)
-      error, message = message, nil if message.is_a?(Error)
-
-      @errors[attribute.to_s] ||= []
-      @errors[attribute.to_s] << (error || Error.new(@base, attribute, message, options))
-    end
-
-    # Will add an error message to each of the attributes in +attributes+ that is empty.
-    def add_on_empty(attributes, custom_message = nil)
-      for attr in [attributes].flatten
-        value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]
-        is_empty = value.respond_to?(:empty?) ? value.empty? : false
-        add(attr, :empty, :default => custom_message) unless !value.nil? && !is_empty
-      end
-    end
-
-    # Will add an error message to each of the attributes in +attributes+ that is blank (using Object#blank?).
-    def add_on_blank(attributes, custom_message = nil)
-      for attr in [attributes].flatten
-        value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]
-        add(attr, :blank, :default => custom_message) if value.blank?
-      end
-    end
-
-    # Returns true if the specified +attribute+ has errors associated with it.
-    #
-    #   class Company < ActiveRecord::Base
-    #     validates_presence_of :name, :address, :email
-    #     validates_length_of :name, :in => 5..30
-    #   end
-    #
-    #   company = Company.create(:address => '123 First St.')
-    #   company.errors.invalid?(:name)      # => true
-    #   company.errors.invalid?(:address)   # => false
-    def invalid?(attribute)
-      !@errors[attribute.to_s].nil?
-    end
-
-    # Returns +nil+, if no errors are associated with the specified +attribute+.
-    # Returns the error message, if one error is associated with the specified +attribute+.
-    # Returns an array of error messages, if more than one error is associated with the specified +attribute+.
-    #
-    #   class Company < ActiveRecord::Base
-    #     validates_presence_of :name, :address, :email
-    #     validates_length_of :name, :in => 5..30
-    #   end
-    #
-    #   company = Company.create(:address => '123 First St.')
-    #   company.errors.on(:name)      # => ["is too short (minimum is 5 characters)", "can't be blank"]
-    #   company.errors.on(:email)     # => "can't be blank"
-    #   company.errors.on(:address)   # => nil
-    def on(attribute)
-      attribute = attribute.to_s
-      return nil unless @errors.has_key?(attribute)
-      errors = @errors[attribute].map(&:to_s)
-      errors.size == 1 ? errors.first : errors
-    end
-
-    alias :[] :on
-
-    # Returns errors assigned to the base object through +add_to_base+ according to the normal rules of <tt>on(attribute)</tt>.
-    def on_base
-      on(:base)
-    end
-
-    # Yields each attribute and associated message per error added.
-    #
-    #   class Company < ActiveRecord::Base
-    #     validates_presence_of :name, :address, :email
-    #     validates_length_of :name, :in => 5..30
-    #   end
-    #
-    #   company = Company.create(:address => '123 First St.')
-    #   company.errors.each{|attr,msg| puts "#{attr} - #{msg}" }
-    #   # => name - is too short (minimum is 5 characters)
-    #   #    name - can't be blank
-    #   #    address - can't be blank
-    def each
-      @errors.each_key { |attr| @errors[attr].each { |error| yield attr, error.message } }
-    end
-
-    def each_error
-      @errors.each_key { |attr| @errors[attr].each { |error| yield attr, error } }
-    end
-
-    # Yields each full error message added. So <tt>Person.errors.add("first_name", "can't be empty")</tt> will be returned
-    # through iteration as "First name can't be empty".
-    #
-    #   class Company < ActiveRecord::Base
-    #     validates_presence_of :name, :address, :email
-    #     validates_length_of :name, :in => 5..30
-    #   end
-    #
-    #   company = Company.create(:address => '123 First St.')
-    #   company.errors.each_full{|msg| puts msg }
-    #   # => Name is too short (minimum is 5 characters)
-    #   #    Name can't be blank
-    #   #    Address can't be blank
-    def each_full
-      full_messages.each { |msg| yield msg }
-    end
-
-    # Returns all the full error messages in an array.
-    #
-    #   class Company < ActiveRecord::Base
-    #     validates_presence_of :name, :address, :email
-    #     validates_length_of :name, :in => 5..30
-    #   end
-    #
-    #   company = Company.create(:address => '123 First St.')
-    #   company.errors.full_messages # =>
-    #     ["Name is too short (minimum is 5 characters)", "Name can't be blank", "Address can't be blank"]
-    def full_messages(options = {})
-      @errors.values.inject([]) do |full_messages, errors|
-        full_messages + errors.map { |error| error.full_message }
-      end
-    end
-
-    # Returns true if no errors have been added.
-    def empty?
-      @errors.empty?
-    end
-
-    # Removes all errors that have been added.
-    def clear
-      @errors = ActiveSupport::OrderedHash.new
-    end
-
-    # Returns the total number of errors added. Two errors added to the same attribute will be counted as such.
-    def size
-      @errors.values.inject(0) { |error_count, attribute| error_count + attribute.size }
-    end
-
-    alias_method :count, :size
-    alias_method :length, :size
-
-    # Returns an XML representation of this error object.
-    #
-    #   class Company < ActiveRecord::Base
-    #     validates_presence_of :name, :address, :email
-    #     validates_length_of :name, :in => 5..30
-    #   end
-    #
-    #   company = Company.create(:address => '123 First St.')
-    #   company.errors.to_xml
-    #   # =>  <?xml version="1.0" encoding="UTF-8"?>
-    #   #     <errors>
-    #   #       <error>Name is too short (minimum is 5 characters)</error>
-    #   #       <error>Name can't be blank</error>
-    #   #       <error>Address can't be blank</error>
-    #   #     </errors>
-    def to_xml(options={})
-      options[:root] ||= "errors"
-      options[:indent] ||= 2
-      options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent])
-
-      options[:builder].instruct! unless options.delete(:skip_instruct)
-      options[:builder].errors do |e|
-        full_messages.each { |msg| e.error(msg) }
-      end
-    end
-
-    def generate_message(attribute, message = :invalid, options = {})
-      ActiveSupport::Deprecation.warn("ActiveRecord::Errors#generate_message has been deprecated. Please use ActiveRecord::Error.new().to_s.")
-      Error.new(@base, attribute, message, options).to_s
-    end
-  end
-
-
-  # Please do have a look at ActiveRecord::Validations::ClassMethods for a higher level of validations.
-  #
-  # Active Records implement validation by overwriting Base#validate (or the variations, +validate_on_create+ and
-  # +validate_on_update+). Each of these methods can inspect the state of the object, which usually means ensuring
-  # that a number of attributes have a certain value (such as not empty, within a given range, matching a certain regular expression).
-  #
-  # Example:
-  #
-  #   class Person < ActiveRecord::Base
-  #     protected
-  #       def validate
-  #         errors.add_on_empty %w( first_name last_name )
-  #         errors.add("phone_number", "has invalid format") unless phone_number =~ /[0-9]*/
-  #       end
-  #
-  #       def validate_on_create # is only run the first time a new object is saved
-  #         unless valid_discount?(membership_discount)
-  #           errors.add("membership_discount", "has expired")
-  #         end
-  #       end
-  #
-  #       def validate_on_update
-  #         errors.add_to_base("No changes have occurred") if unchanged_attributes?
-  #       end
-  #   end
-  #
-  #   person = Person.new("first_name" => "David", "phone_number" => "what?")
-  #   person.save                         # => false (and doesn't do the save)
-  #   person.errors.empty?                # => false
-  #   person.errors.count                 # => 2
-  #   person.errors.on "last_name"        # => "can't be empty"
-  #   person.errors.on "phone_number"     # => "has invalid format"
-  #   person.errors.each_full { |msg| puts msg }
-  #                                       # => "Last name can't be empty\n" +
-  #                                       #    "Phone number has invalid format"
-  #
-  #   person.attributes = { "last_name" => "Heinemeier", "phone_number" => "555-555" }
-  #   person.save # => true (and person is now saved in the database)
-  #
-  # An Errors object is automatically created for every Active Record.
-  module Validations
-    VALIDATIONS = %w( validate validate_on_create validate_on_update )
-
-    def self.included(base) # :nodoc:
-      base.extend ClassMethods
-      base.class_eval do
-        alias_method_chain :save, :validation
-        alias_method_chain :save!, :validation
-      end
-
-      base.send :include, ActiveSupport::Callbacks
-      base.define_callbacks *VALIDATIONS
-    end
-
-    # Active Record classes can implement validations in several ways. The highest level, easiest to read,
-    # and recommended approach is to use the declarative <tt>validates_..._of</tt> class methods (and
-    # +validates_associated+) documented below. These are sufficient for most model validations.
-    #
-    # Slightly lower level is +validates_each+. It provides some of the same options as the purely declarative
-    # validation methods, but like all the lower-level approaches it requires manually adding to the errors collection
-    # when the record is invalid.
-    #
-    # At a yet lower level, a model can use the class methods +validate+, +validate_on_create+ and +validate_on_update+
-    # to add validation methods or blocks. These are ActiveSupport::Callbacks and follow the same rules of inheritance
-    # and chaining.
-    #
-    # The lowest level style is to define the instance methods +validate+, +validate_on_create+ and +validate_on_update+
-    # as documented in ActiveRecord::Validations.
-    #
-    # == +validate+, +validate_on_create+ and +validate_on_update+ Class Methods
-    #
-    # Calls to these methods add a validation method or block to the class. Again, this approach is recommended
-    # only when the higher-level methods documented below (<tt>validates_..._of</tt> and +validates_associated+) are
-    # insufficient to handle the required validation.
-    #
-    # This can be done with a symbol pointing to a method:
-    #
-    #   class Comment < ActiveRecord::Base
-    #     validate :must_be_friends
-    #
-    #     def must_be_friends
-    #       errors.add_to_base("Must be friends to leave a comment") unless commenter.friend_of?(commentee)
-    #     end
-    #   end
-    #
-    # Or with a block which is passed the current record to be validated:
-    #
-    #   class Comment < ActiveRecord::Base
-    #     validate do |comment|
-    #       comment.must_be_friends
-    #     end
-    #
-    #     def must_be_friends
-    #       errors.add_to_base("Must be friends to leave a comment") unless commenter.friend_of?(commentee)
-    #     end
-    #   end
-    #
-    # This usage applies to +validate_on_create+ and +validate_on_update+ as well.
-    module ClassMethods
-      DEFAULT_VALIDATION_OPTIONS = {
-        :on => :save,
-        :allow_nil => false,
-        :allow_blank => false,
-        :message => nil
-      }.freeze
-
-      ALL_RANGE_OPTIONS = [ :is, :within, :in, :minimum, :maximum ].freeze
-      ALL_NUMERICALITY_CHECKS = { :greater_than => '>', :greater_than_or_equal_to => '>=',
-                                  :equal_to => '==', :less_than => '<', :less_than_or_equal_to => '<=',
-                                  :odd => 'odd?', :even => 'even?' }.freeze
-
-      # Validates each attribute against a block.
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_each :first_name, :last_name do |record, attr, value|
-      #       record.errors.add attr, 'starts with z.' if value[0] == ?z
-      #     end
-      #   end
-      #
-      # Options:
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:allow_nil</tt> - Skip validation if attribute is +nil+.
-      # * <tt>:allow_blank</tt> - Skip validation if attribute is blank.
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_each(*attrs)
-        options = attrs.extract_options!.symbolize_keys
-        attrs   = attrs.flatten
-
-        # Declare the validation.
-        send(validation_method(options[:on] || :save), options) do |record|
-          attrs.each do |attr|
-            value = record.send(attr)
-            next if (value.nil? && options[:allow_nil]) || (value.blank? && options[:allow_blank])
-            yield record, attr, value
-          end
-        end
-      end
-
-      # Encapsulates the pattern of wanting to validate a password or email address field with a confirmation. Example:
-      #
-      #   Model:
-      #     class Person < ActiveRecord::Base
-      #       validates_confirmation_of :user_name, :password
-      #       validates_confirmation_of :email_address, :message => "should match confirmation"
-      #     end
-      #
-      #   View:
-      #     <%= password_field "person", "password" %>
-      #     <%= password_field "person", "password_confirmation" %>
-      #
-      # The added +password_confirmation+ attribute is virtual; it exists only as an in-memory attribute for validating the password.
-      # To achieve this, the validation adds accessors to the model for the confirmation attribute. NOTE: This check is performed
-      # only if +password_confirmation+ is not +nil+, and by default only on save. To require confirmation, make sure to add a presence
-      # check for the confirmation attribute:
-      #
-      #   validates_presence_of :password_confirmation, :if => :password_changed?
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "doesn't match confirmation").
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_confirmation_of(*attr_names)
-        configuration = { :on => :save }
-        configuration.update(attr_names.extract_options!)
-
-        attr_accessor(*(attr_names.map { |n| "#{n}_confirmation" }))
-
-        validates_each(attr_names, configuration) do |record, attr_name, value|
-          unless record.send("#{attr_name}_confirmation").nil? or value == record.send("#{attr_name}_confirmation")
-            record.errors.add(attr_name, :confirmation, :default => configuration[:message])
-          end
-        end
-      end
-
-      # Encapsulates the pattern of wanting to validate the acceptance of a terms of service check box (or similar agreement). Example:
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_acceptance_of :terms_of_service
-      #     validates_acceptance_of :eula, :message => "must be abided"
-      #   end
-      #
-      # If the database column does not exist, the +terms_of_service+ attribute is entirely virtual. This check is
-      # performed only if +terms_of_service+ is not +nil+ and by default on save.
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "must be accepted").
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:allow_nil</tt> - Skip validation if attribute is +nil+ (default is true).
-      # * <tt>:accept</tt> - Specifies value that is considered accepted.  The default value is a string "1", which
-      #   makes it easy to relate to an HTML checkbox. This should be set to +true+ if you are validating a database
-      #   column, since the attribute is typecast from "1" to +true+ before validation.
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_acceptance_of(*attr_names)
-        configuration = { :on => :save, :allow_nil => true, :accept => "1" }
-        configuration.update(attr_names.extract_options!)
-
-        db_cols = begin
-          column_names
-        rescue Exception # To ignore both statement and connection errors
-          []
-        end
-        names = attr_names.reject { |name| db_cols.include?(name.to_s) }
-        attr_accessor(*names)
-
-        validates_each(attr_names,configuration) do |record, attr_name, value|
-          unless value == configuration[:accept]
-            record.errors.add(attr_name, :accepted, :default => configuration[:message])
-          end
-        end
-      end
-
-      # Validates that the specified attributes are not blank (as defined by Object#blank?). Happens by default on save. Example:
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_presence_of :first_name
-      #   end
-      #
-      # The first_name attribute must be in the object and it cannot be blank.
-      #
-      # If you want to validate the presence of a boolean field (where the real values are true and false),
-      # you will want to use <tt>validates_inclusion_of :field_name, :in => [true, false]</tt>.
-      #
-      # This is due to the way Object#blank? handles boolean values: <tt>false.blank? # => true</tt>.
-      #
-      # Configuration options:
-      # * <tt>message</tt> - A custom error message (default is: "can't be blank").
-      # * <tt>on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>,
-      #   <tt>:update</tt>).
-      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).
-      #   The method, proc or string should return or evaluate to a true or false value.
-      # * <tt>unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).
-      #   The method, proc or string should return or evaluate to a true or false value.
-      #
-      def validates_presence_of(*attr_names)
-        configuration = { :on => :save }
-        configuration.update(attr_names.extract_options!)
-
-        # can't use validates_each here, because it cannot cope with nonexistent attributes,
-        # while errors.add_on_empty can
-        send(validation_method(configuration[:on]), configuration) do |record|
-          record.errors.add_on_blank(attr_names, configuration[:message])
-        end
-      end
-
-      # Validates that the specified attribute matches the length restrictions supplied. Only one option can be used at a time:
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_length_of :first_name, :maximum=>30
-      #     validates_length_of :last_name, :maximum=>30, :message=>"less than {{count}} if you don't mind"
-      #     validates_length_of :fax, :in => 7..32, :allow_nil => true
-      #     validates_length_of :phone, :in => 7..32, :allow_blank => true
-      #     validates_length_of :user_name, :within => 6..20, :too_long => "pick a shorter name", :too_short => "pick a longer name"
-      #     validates_length_of :fav_bra_size, :minimum => 1, :too_short => "please enter at least {{count}} character"
-      #     validates_length_of :smurf_leader, :is => 4, :message => "papa is spelled with {{count}} characters... don't play me."
-      #     validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least {{count}} words."), :tokenizer => lambda {|str| str.scan(/\w+/) }
-      #   end
-      #
-      # Configuration options:
-      # * <tt>:minimum</tt> - The minimum size of the attribute.
-      # * <tt>:maximum</tt> - The maximum size of the attribute.
-      # * <tt>:is</tt> - The exact size of the attribute.
-      # * <tt>:within</tt> - A range specifying the minimum and maximum size of the attribute.
-      # * <tt>:in</tt> - A synonym(or alias) for <tt>:within</tt>.
-      # * <tt>:allow_nil</tt> - Attribute may be +nil+; skip validation.
-      # * <tt>:allow_blank</tt> - Attribute may be blank; skip validation.
-      # * <tt>:too_long</tt> - The error message if the attribute goes over the maximum (default is: "is too long (maximum is {{count}} characters)").
-      # * <tt>:too_short</tt> - The error message if the attribute goes under the minimum (default is: "is too short (min is {{count}} characters)").
-      # * <tt>:wrong_length</tt> - The error message if using the <tt>:is</tt> method and the attribute is the wrong size (default is: "is the wrong length (should be {{count}} characters)").
-      # * <tt>:message</tt> - The error message to use for a <tt>:minimum</tt>, <tt>:maximum</tt>, or <tt>:is</tt> violation.  An alias of the appropriate <tt>too_long</tt>/<tt>too_short</tt>/<tt>wrong_length</tt> message.
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:tokenizer</tt> - Specifies how to split up the attribute string. (e.g. <tt>:tokenizer => lambda {|str| str.scan(/\w+/)}</tt> to
-      #   count words as in above example.)
-      #   Defaults to <tt>lambda{ |value| value.split(//) }</tt> which counts individual characters.
-      def validates_length_of(*attrs)
-        # Merge given options with defaults.
-        options = {
-          :tokenizer => lambda {|value| value.split(//)}
-        }.merge(DEFAULT_VALIDATION_OPTIONS)
-        options.update(attrs.extract_options!.symbolize_keys)
-
-        # Ensure that one and only one range option is specified.
-        range_options = ALL_RANGE_OPTIONS & options.keys
-        case range_options.size
-          when 0
-            raise ArgumentError, 'Range unspecified.  Specify the :within, :maximum, :minimum, or :is option.'
-          when 1
-            # Valid number of options; do nothing.
-          else
-            raise ArgumentError, 'Too many range options specified.  Choose only one.'
-        end
-
-        # Get range option and value.
-        option = range_options.first
-        option_value = options[range_options.first]
-        key = {:is => :wrong_length, :minimum => :too_short, :maximum => :too_long}[option]
-        custom_message = options[:message] || options[key]
-
-        case option
-          when :within, :in
-            raise ArgumentError, ":#{option} must be a Range" unless option_value.is_a?(Range)
-
-            validates_each(attrs, options) do |record, attr, value|
-              value = options[:tokenizer].call(value) if value.kind_of?(String)
-              if value.nil? or value.size < option_value.begin
-                record.errors.add(attr, :too_short, :default => custom_message || options[:too_short], :count => option_value.begin)
-              elsif value.size > option_value.end
-                record.errors.add(attr, :too_long, :default => custom_message || options[:too_long], :count => option_value.end)
-              end
-            end
-          when :is, :minimum, :maximum
-            raise ArgumentError, ":#{option} must be a nonnegative Integer" unless option_value.is_a?(Integer) and option_value >= 0
-
-            # Declare different validations per option.
-            validity_checks = { :is => "==", :minimum => ">=", :maximum => "<=" }
-
-            validates_each(attrs, options) do |record, attr, value|
-              value = options[:tokenizer].call(value) if value.kind_of?(String)
-              unless !value.nil? and value.size.method(validity_checks[option])[option_value]
-                record.errors.add(attr, key, :default => custom_message, :count => option_value)
-              end
-            end
-        end
-      end
-
-      alias_method :validates_size_of, :validates_length_of
-
-
-      # Validates whether the value of the specified attributes are unique across the system. Useful for making sure that only one user
-      # can be named "davidhh".
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_uniqueness_of :user_name, :scope => :account_id
-      #   end
-      #
-      # It can also validate whether the value of the specified attributes are unique based on multiple scope parameters.  For example,
-      # making sure that a teacher can only be on the schedule once per semester for a particular class.
-      #
-      #   class TeacherSchedule < ActiveRecord::Base
-      #     validates_uniqueness_of :teacher_id, :scope => [:semester_id, :class_id]
-      #   end
-      #
-      # When the record is created, a check is performed to make sure that no record exists in the database with the given value for the specified
-      # attribute (that maps to a column). When the record is updated, the same check is made but disregarding the record itself.
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - Specifies a custom error message (default is: "has already been taken").
-      # * <tt>:scope</tt> - One or more columns by which to limit the scope of the uniqueness constraint.
-      # * <tt>:case_sensitive</tt> - Looks for an exact match. Ignored by non-text columns (+true+ by default).
-      # * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute is +nil+ (default is +false+).
-      # * <tt>:allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is +false+).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      #
-      # === Concurrency and integrity
-      #
-      # Using this validation method in conjunction with ActiveRecord::Base#save
-      # does not guarantee the absence of duplicate record insertions, because
-      # uniqueness checks on the application level are inherently prone to race
-      # conditions. For example, suppose that two users try to post a Comment at
-      # the same time, and a Comment's title must be unique. At the database-level,
-      # the actions performed by these users could be interleaved in the following manner:
-      #
-      #               User 1                 |               User 2
-      #  ------------------------------------+--------------------------------------
-      #  # User 1 checks whether there's     |
-      #  # already a comment with the title  |
-      #  # 'My Post'. This is not the case.  |
-      #  SELECT * FROM comments              |
-      #  WHERE title = 'My Post'             |
-      #                                      |
-      #                                      | # User 2 does the same thing and also
-      #                                      | # infers that his title is unique.
-      #                                      | SELECT * FROM comments
-      #                                      | WHERE title = 'My Post'
-      #                                      |
-      #  # User 1 inserts his comment.       |
-      #  INSERT INTO comments                |
-      #  (title, content) VALUES             |
-      #  ('My Post', 'hi!')                  |
-      #                                      |
-      #                                      | # User 2 does the same thing.
-      #                                      | INSERT INTO comments
-      #                                      | (title, content) VALUES
-      #                                      | ('My Post', 'hello!')
-      #                                      |
-      #                                      | # ^^^^^^
-      #                                      | # Boom! We now have a duplicate
-      #                                      | # title!
-      #
-      # This could even happen if you use transactions with the 'serializable'
-      # isolation level. There are several ways to get around this problem:
-      # - By locking the database table before validating, and unlocking it after
-      #   saving. However, table locking is very expensive, and thus not
-      #   recommended.
-      # - By locking a lock file before validating, and unlocking it after saving.
-      #   This does not work if you've scaled your Rails application across
-      #   multiple web servers (because they cannot share lock files, or cannot
-      #   do that efficiently), and thus not recommended.
-      # - Creating a unique index on the field, by using
-      #   ActiveRecord::ConnectionAdapters::SchemaStatements#add_index. In the
-      #   rare case that a race condition occurs, the database will guarantee
-      #   the field's uniqueness.
-      #
-      #   When the database catches such a duplicate insertion,
-      #   ActiveRecord::Base#save will raise an ActiveRecord::StatementInvalid
-      #   exception. You can either choose to let this error propagate (which
-      #   will result in the default Rails exception page being shown), or you
-      #   can catch it and restart the transaction (e.g. by telling the user
-      #   that the title already exists, and asking him to re-enter the title).
-      #   This technique is also known as optimistic concurrency control:
-      #   http://en.wikipedia.org/wiki/Optimistic_concurrency_control
-      #
-      #   Active Record currently provides no way to distinguish unique
-      #   index constraint errors from other types of database errors, so you
-      #   will have to parse the (database-specific) exception message to detect
-      #   such a case.
-      def validates_uniqueness_of(*attr_names)
-        configuration = { :case_sensitive => true }
-        configuration.update(attr_names.extract_options!)
-
-        validates_each(attr_names,configuration) do |record, attr_name, value|
-          # The check for an existing value should be run from a class that
-          # isn't abstract. This means working down from the current class
-          # (self), to the first non-abstract class. Since classes don't know
-          # their subclasses, we have to build the hierarchy between self and
-          # the record's class.
-          class_hierarchy = [record.class]
-          while class_hierarchy.first != self
-            class_hierarchy.insert(0, class_hierarchy.first.superclass)
-          end
-
-          # Now we can work our way down the tree to the first non-abstract
-          # class (which has a database table to query from).
-          finder_class = class_hierarchy.detect { |klass| !klass.abstract_class? }
-
-          column = finder_class.columns_hash[attr_name.to_s]
-
-          if value.nil?
-            comparison_operator = "IS ?"
-          elsif column.text?
-            comparison_operator = "#{connection.case_sensitive_equality_operator} ?"
-            value = column.limit ? value.to_s.mb_chars[0, column.limit] : value.to_s
-          else
-            comparison_operator = "= ?"
-          end
-
-          sql_attribute = "#{record.class.quoted_table_name}.#{connection.quote_column_name(attr_name)}"
-
-          if value.nil? || (configuration[:case_sensitive] || !column.text?)
-            condition_sql = "#{sql_attribute} #{comparison_operator}"
-            condition_params = [value]
-          else
-            condition_sql = "LOWER(#{sql_attribute}) #{comparison_operator}"
-            condition_params = [value.mb_chars.downcase]
-          end
-
-          if scope = configuration[:scope]
-            Array(scope).map do |scope_item|
-              scope_value = record.send(scope_item)
-              condition_sql << " AND " << attribute_condition("#{record.class.quoted_table_name}.#{scope_item}", scope_value)
-              condition_params << scope_value
-            end
-          end
-
-          unless record.new_record?
-            condition_sql << " AND #{record.class.quoted_table_name}.#{record.class.primary_key} <> ?"
-            condition_params << record.send(:id)
-          end
-
-          finder_class.with_exclusive_scope do
-            if finder_class.exists?([condition_sql, *condition_params])
-              record.errors.add(attr_name, :taken, :default => configuration[:message], :value => value)
-            end
-          end
-        end
-      end
-
-
-      # Validates whether the value of the specified attribute is of the correct form by matching it against the regular expression
-      # provided.
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create
-      #   end
-      #
-      # Note: use <tt>\A</tt> and <tt>\Z</tt> to match the start and end of the string, <tt>^</tt> and <tt>$</tt> match the start/end of a line.
-      #
-      # A regular expression must be provided or else an exception will be raised.
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "is invalid").
-      # * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute is +nil+ (default is +false+).
-      # * <tt>:allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is +false+).
-      # * <tt>:with</tt> - The regular expression used to validate the format with (note: must be supplied!).
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_format_of(*attr_names)
-        configuration = { :on => :save, :with => nil }
-        configuration.update(attr_names.extract_options!)
-
-        raise(ArgumentError, "A regular expression must be supplied as the :with option of the configuration hash") unless configuration[:with].is_a?(Regexp)
-
-        validates_each(attr_names, configuration) do |record, attr_name, value|
-          unless value.to_s =~ configuration[:with]
-            record.errors.add(attr_name, :invalid, :default => configuration[:message], :value => value)
-          end
-        end
-      end
-
-      # Validates whether the value of the specified attribute is available in a particular enumerable object.
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_inclusion_of :gender, :in => %w( m f )
-      #     validates_inclusion_of :age, :in => 0..99
-      #     validates_inclusion_of :format, :in => %w( jpg gif png ), :message => "extension {{value}} is not included in the list"
-      #   end
-      #
-      # Configuration options:
-      # * <tt>:in</tt> - An enumerable object of available items.
-      # * <tt>:message</tt> - Specifies a custom error message (default is: "is not included in the list").
-      # * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute is +nil+ (default is +false+).
-      # * <tt>:allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is +false+).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_inclusion_of(*attr_names)
-        configuration = { :on => :save }
-        configuration.update(attr_names.extract_options!)
-
-        enum = configuration[:in] || configuration[:within]
-
-        raise(ArgumentError, "An object with the method include? is required must be supplied as the :in option of the configuration hash") unless enum.respond_to?(:include?)
-
-        validates_each(attr_names, configuration) do |record, attr_name, value|
-          unless enum.include?(value)
-            record.errors.add(attr_name, :inclusion, :default => configuration[:message], :value => value)
-          end
-        end
-      end
-
-      # Validates that the value of the specified attribute is not in a particular enumerable object.
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_exclusion_of :username, :in => %w( admin superuser ), :message => "You don't belong here"
-      #     validates_exclusion_of :age, :in => 30..60, :message => "This site is only for under 30 and over 60"
-      #     validates_exclusion_of :format, :in => %w( mov avi ), :message => "extension {{value}} is not allowed"
-      #   end
-      #
-      # Configuration options:
-      # * <tt>:in</tt> - An enumerable object of items that the value shouldn't be part of.
-      # * <tt>:message</tt> - Specifies a custom error message (default is: "is reserved").
-      # * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute is +nil+ (default is +false+).
-      # * <tt>:allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is +false+).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_exclusion_of(*attr_names)
-        configuration = { :on => :save }
-        configuration.update(attr_names.extract_options!)
-
-        enum = configuration[:in] || configuration[:within]
-
-        raise(ArgumentError, "An object with the method include? is required must be supplied as the :in option of the configuration hash") unless enum.respond_to?(:include?)
-
-        validates_each(attr_names, configuration) do |record, attr_name, value|
-          if enum.include?(value)
-            record.errors.add(attr_name, :exclusion, :default => configuration[:message], :value => value)
-          end
-        end
-      end
-
-      # Validates whether the associated object or objects are all valid themselves. Works with any kind of association.
-      #
-      #   class Book < ActiveRecord::Base
-      #     has_many :pages
-      #     belongs_to :library
-      #
-      #     validates_associated :pages, :library
-      #   end
-      #
-      # Warning: If, after the above definition, you then wrote:
-      #
-      #   class Page < ActiveRecord::Base
-      #     belongs_to :book
-      #
-      #     validates_associated :book
-      #   end
-      #
-      # this would specify a circular dependency and cause infinite recursion.
-      #
-      # NOTE: This validation will not fail if the association hasn't been assigned. If you want to ensure that the association
-      # is both present and guaranteed to be valid, you also need to use +validates_presence_of+.
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "is invalid")
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_associated(*attr_names)
-        configuration = { :on => :save }
-        configuration.update(attr_names.extract_options!)
-
-        validates_each(attr_names, configuration) do |record, attr_name, value|
-          unless (value.is_a?(Array) ? value : [value]).collect { |r| r.nil? || r.valid? }.all?
-            record.errors.add(attr_name, :invalid, :default => configuration[:message], :value => value)
-          end
-        end
-      end
-
-      # Validates whether the value of the specified attribute is numeric by trying to convert it to
-      # a float with Kernel.Float (if <tt>only_integer</tt> is false) or applying it to the regular expression
-      # <tt>/\A[\+\-]?\d+\Z/</tt> (if <tt>only_integer</tt> is set to true).
-      #
-      #   class Person < ActiveRecord::Base
-      #     validates_numericality_of :value, :on => :create
-      #   end
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "is not a number").
-      # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
-      # * <tt>:only_integer</tt> - Specifies whether the value has to be an integer, e.g. an integral value (default is +false+).
-      # * <tt>:allow_nil</tt> - Skip validation if attribute is +nil+ (default is +false+). Notice that for fixnum and float columns empty strings are converted to +nil+.
-      # * <tt>:greater_than</tt> - Specifies the value must be greater than the supplied value.
-      # * <tt>:greater_than_or_equal_to</tt> - Specifies the value must be greater than or equal the supplied value.
-      # * <tt>:equal_to</tt> - Specifies the value must be equal to the supplied value.
-      # * <tt>:less_than</tt> - Specifies the value must be less than the supplied value.
-      # * <tt>:less_than_or_equal_to</tt> - Specifies the value must be less than or equal the supplied value.
-      # * <tt>:odd</tt> - Specifies the value must be an odd number.
-      # * <tt>:even</tt> - Specifies the value must be an even number.
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
-      #   method, proc or string should return or evaluate to a true or false value.
-      def validates_numericality_of(*attr_names)
-        configuration = { :on => :save, :only_integer => false, :allow_nil => false }
-        configuration.update(attr_names.extract_options!)
-
-
-        numericality_options = ALL_NUMERICALITY_CHECKS.keys & configuration.keys
-
-        (numericality_options - [ :odd, :even ]).each do |option|
-          raise ArgumentError, ":#{option} must be a number" unless configuration[option].is_a?(Numeric)
-        end
-
-        validates_each(attr_names,configuration) do |record, attr_name, value|
-          raw_value = record.send("#{attr_name}_before_type_cast") || value
-
-          next if configuration[:allow_nil] and raw_value.nil?
-
-          if configuration[:only_integer]
-            unless raw_value.to_s =~ /\A[+-]?\d+\Z/
-              record.errors.add(attr_name, :not_a_number, :value => raw_value, :default => configuration[:message])
-              next
-            end
-            raw_value = raw_value.to_i
-          else
-            begin
-              raw_value = Kernel.Float(raw_value)
-            rescue ArgumentError, TypeError
-              record.errors.add(attr_name, :not_a_number, :value => raw_value, :default => configuration[:message])
-              next
-            end
-          end
-
-          numericality_options.each do |option|
-            case option
-              when :odd, :even
-                unless raw_value.to_i.method(ALL_NUMERICALITY_CHECKS[option])[]
-                  record.errors.add(attr_name, option, :value => raw_value, :default => configuration[:message])
-                end
-              else
-                record.errors.add(attr_name, option, :default => configuration[:message], :value => raw_value, :count => configuration[option]) unless raw_value.method(ALL_NUMERICALITY_CHECKS[option])[configuration[option]]
-            end
-          end
-        end
-      end
-
-      # Creates an object just like Base.create but calls save! instead of save
-      # so an exception is raised if the record is invalid.
-      def create!(attributes = nil, &block)
-        if attributes.is_a?(Array)
-          attributes.collect { |attr| create!(attr, &block) }
-        else
-          object = new(attributes)
-          yield(object) if block_given?
-          object.save!
-          object
-        end
-      end
-
-      private
-        def validation_method(on)
-          case on
-            when :save   then :validate
-            when :create then :validate_on_create
-            when :update then :validate_on_update
-          end
-        end
-    end
-
-    # The validation process on save can be skipped by passing false. The regular Base#save method is
-    # replaced with this when the validations module is mixed in, which it is by default.
-    def save_with_validation(perform_validation = true)
-      if perform_validation && valid? || !perform_validation
-        save_without_validation
-      else
-        false
-      end
-    end
-
-    # Attempts to save the record just like Base#save but will raise a RecordInvalid exception instead of returning false
-    # if the record is not valid.
-    def save_with_validation!
-      if valid?
-        save_without_validation!
-      else
-        raise RecordInvalid.new(self)
-      end
-    end
-
-    # Runs +validate+ and +validate_on_create+ or +validate_on_update+ and returns true if no errors were added otherwise false.
-    def valid?
-      errors.clear
-
-      run_callbacks(:validate)
-      validate
-
-      if new_record?
-        run_callbacks(:validate_on_create)
-        validate_on_create
-      else
-        run_callbacks(:validate_on_update)
-        validate_on_update
-      end
-
-      errors.empty?
-    end
-
-    # Performs the opposite of <tt>valid?</tt>. Returns true if errors were added, false otherwise.
-    def invalid?
-      !valid?
-    end
-
-    # Returns the Errors object that holds all information about attribute error messages.
-    def errors
-      @errors ||= Errors.new(self)
-    end
-
-    protected
-      # Overwrite this method for validation checks on all saves and use <tt>Errors.add(field, msg)</tt> for invalid attributes.
-      def validate
-      end
-
-      # Overwrite this method for validation checks used only on creation.
-      def validate_on_create
-      end
-
-      # Overwrite this method for validation checks used only on updates.
-      def validate_on_update
-      end
-  end
-end
@@ -1,9 +0,0 @@
-module ActiveRecord
-  module VERSION #:nodoc:
-    MAJOR = 2
-    MINOR = 3
-    TINY  = 5
-
-    STRING = [MAJOR, MINOR, TINY].join('.')
-  end
-end
@@ -1,59 +0,0 @@
-#--
-# Copyright (c) 2005 David Heinemeier Hansson
-#
-# Permission is hereby granted, free of charge, to any person obtaining
-# a copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish,
-# distribute, sublicense, and/or sell copies of the Software, and to
-# permit persons to whom the Software is furnished to do so, subject to
-# the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#++
-
-module ActiveSupport
-  def self.load_all!
-    [Dependencies, Deprecation, Gzip, MessageVerifier, Multibyte, SecureRandom, TimeWithZone]
-  end
-
-  autoload :BacktraceCleaner, 'active_support/backtrace_cleaner'
-  autoload :Base64, 'active_support/base64'
-  autoload :BasicObject, 'active_support/basic_object'
-  autoload :BufferedLogger, 'active_support/buffered_logger'
-  autoload :Cache, 'active_support/cache'
-  autoload :Callbacks, 'active_support/callbacks'
-  autoload :Deprecation, 'active_support/deprecation'
-  autoload :Duration, 'active_support/duration'
-  autoload :Gzip, 'active_support/gzip'
-  autoload :Inflector, 'active_support/inflector'
-  autoload :Memoizable, 'active_support/memoizable'
-  autoload :MessageEncryptor, 'active_support/message_encryptor'
-  autoload :MessageVerifier, 'active_support/message_verifier'
-  autoload :Multibyte, 'active_support/multibyte'
-  autoload :OptionMerger, 'active_support/option_merger'
-  autoload :OrderedHash, 'active_support/ordered_hash'
-  autoload :OrderedOptions, 'active_support/ordered_options'
-  autoload :Rescuable, 'active_support/rescuable'
-  autoload :SecureRandom, 'active_support/secure_random'
-  autoload :StringInquirer, 'active_support/string_inquirer'
-  autoload :TimeWithZone, 'active_support/time_with_zone'
-  autoload :TimeZone, 'active_support/values/time_zone'
-  autoload :XmlMini, 'active_support/xml_mini'
-end
-
-require 'active_support/vendor'
-require 'active_support/core_ext'
-require 'active_support/dependencies'
-require 'active_support/json'
-
-I18n.load_path << "#{File.dirname(__FILE__)}/active_support/locale/en.yml"
@@ -1,8 +0,0 @@
-# For forward compatibility with Rails 3.
-#
-# require 'active_support' loads a very bare minumum in Rails 3.
-# require 'active_support/all' loads the whole suite like Rails 2 did.
-#
-# To prepare for Rails 3, switch to require 'active_support/all' now.
-
-require 'active_support'
@@ -1,72 +0,0 @@
-module ActiveSupport
-  # Many backtraces include too much information that's not relevant for the context. This makes it hard to find the signal
-  # in the backtrace and adds debugging time. With a BacktraceCleaner, you can setup filters and silencers for your particular
-  # context, so only the relevant lines are included.
-  #
-  # If you need to reconfigure an existing BacktraceCleaner, like the one in Rails, to show as much as possible, you can always
-  # call BacktraceCleaner#remove_silencers!
-  #
-  # Example:
-  #
-  #   bc = BacktraceCleaner.new
-  #   bc.add_filter   { |line| line.gsub(Rails.root, '') } 
-  #   bc.add_silencer { |line| line =~ /mongrel|rubygems/ }
-  #   bc.clean(exception.backtrace) # will strip the Rails.root prefix and skip any lines from mongrel or rubygems
-  #
-  # Inspired by the Quiet Backtrace gem by Thoughtbot.
-  class BacktraceCleaner
-    def initialize
-      @filters, @silencers = [], []
-    end
-    
-    # Returns the backtrace after all filters and silencers has been run against it. Filters run first, then silencers.
-    def clean(backtrace)
-      silence(filter(backtrace))
-    end
-
-    # Adds a filter from the block provided. Each line in the backtrace will be mapped against this filter.
-    #
-    # Example:
-    #
-    #   # Will turn "/my/rails/root/app/models/person.rb" into "/app/models/person.rb"
-    #   backtrace_cleaner.add_filter { |line| line.gsub(Rails.root, '') }
-    def add_filter(&block)
-      @filters << block
-    end
-
-    # Adds a silencer from the block provided. If the silencer returns true for a given line, it'll be excluded from the
-    # clean backtrace.
-    #
-    # Example:
-    #
-    #   # Will reject all lines that include the word "mongrel", like "/gems/mongrel/server.rb" or "/app/my_mongrel_server/rb"
-    #   backtrace_cleaner.add_silencer { |line| line =~ /mongrel/ }
-    def add_silencer(&block)
-      @silencers << block
-    end
-
-    # Will remove all silencers, but leave in the filters. This is useful if your context of debugging suddenly expands as
-    # you suspect a bug in the libraries you use.
-    def remove_silencers!
-      @silencers = []
-    end
-
-    
-    private
-      def filter(backtrace)
-        @filters.each do |f|
-          backtrace = backtrace.map { |line| f.call(line) }
-        end
-        
-        backtrace
-      end
-      
-      def silence(backtrace)
-        @silencers.each do |s|
-          backtrace = backtrace.reject { |line| s.call(line) }
-        end
-        
-        backtrace
-      end
-  end
-end
@@ -1,33 +0,0 @@
-begin
-  require 'base64'
-rescue LoadError
-end
-
-module ActiveSupport
-  if defined? ::Base64
-    Base64 = ::Base64
-  else
-    # Base64 provides utility methods for encoding and de-coding binary data 
-    # using a base 64 representation. A base 64 representation of binary data
-    # consists entirely of printable US-ASCII characters. The Base64 module
-    # is included in Ruby 1.8, but has been removed in Ruby 1.9.
-    module Base64
-      # Encodes a string to its base 64 representation. Each 60 characters of
-      # output is separated by a newline character.
-      #
-      #  ActiveSupport::Base64.encode64("Original unencoded string") 
-      #  # => "T3JpZ2luYWwgdW5lbmNvZGVkIHN0cmluZw==\n"
-      def self.encode64(data)
-        [data].pack("m")
-      end
-
-      # Decodes a base 64 encoded string to its original representation.
-      #
-      #  ActiveSupport::Base64.decode64("T3JpZ2luYWwgdW5lbmNvZGVkIHN0cmluZw==") 
-      #  # => "Original unencoded string"
-      def self.decode64(data)
-        data.unpack("m").first
-      end
-    end
-  end
-end
@@ -1,24 +0,0 @@
-# A base class with no predefined methods that tries to behave like Builder's
-# BlankSlate in Ruby 1.9. In Ruby pre-1.9, this is actually the
-# Builder::BlankSlate class.
-#
-# Ruby 1.9 introduces BasicObject which differs slightly from Builder's
-# BlankSlate that has been used so far. ActiveSupport::BasicObject provides a
-# barebones base class that emulates Builder::BlankSlate while still relying on
-# Ruby 1.9's BasicObject in Ruby 1.9.
-module ActiveSupport
-  if defined? ::BasicObject
-    class BasicObject < ::BasicObject
-      undef_method :==
-      undef_method :equal?
-
-      # Let ActiveSupport::BasicObject at least raise exceptions.
-      def raise(*args)
-        ::Object.send(:raise, *args)
-      end
-    end
-  else
-    require 'blankslate'
-    BasicObject = BlankSlate
-  end
-end
@@ -1,127 +0,0 @@
-module ActiveSupport
-  # Inspired by the buffered logger idea by Ezra
-  class BufferedLogger
-    module Severity
-      DEBUG   = 0
-      INFO    = 1
-      WARN    = 2
-      ERROR   = 3
-      FATAL   = 4
-      UNKNOWN = 5
-    end
-    include Severity
-
-    MAX_BUFFER_SIZE = 1000
-
-    ##
-    # :singleton-method:
-    # Set to false to disable the silencer
-    cattr_accessor :silencer
-    self.silencer = true
-
-    # Silences the logger for the duration of the block.
-    def silence(temporary_level = ERROR)
-      if silencer
-        begin
-          old_logger_level, self.level = level, temporary_level
-          yield self
-        ensure
-          self.level = old_logger_level
-        end
-      else
-        yield self
-      end
-    end
-
-    attr_accessor :level
-    attr_reader :auto_flushing
-
-    def initialize(log, level = DEBUG)
-      @level         = level
-      @buffer        = {}
-      @auto_flushing = 1
-      @guard = Mutex.new
-
-      if log.respond_to?(:write)
-        @log = log
-      elsif File.exist?(log)
-        @log = open(log, (File::WRONLY | File::APPEND))
-        @log.sync = true
-      else
-        FileUtils.mkdir_p(File.dirname(log))
-        @log = open(log, (File::WRONLY | File::APPEND | File::CREAT))
-        @log.sync = true
-        @log.write("# Logfile created on %s" % [Time.now.to_s])
-      end
-    end
-
-    def add(severity, message = nil, progname = nil, &block)
-      return if @level > severity
-      message = (message || (block && block.call) || progname).to_s
-      # If a newline is necessary then create a new message ending with a newline.
-      # Ensures that the original message is not mutated.
-      message = "#{message}\n" unless message[-1] == ?\n
-      buffer << message
-      auto_flush
-      message
-    end
-
-    for severity in Severity.constants
-      class_eval <<-EOT, __FILE__, __LINE__
-        def #{severity.downcase}(message = nil, progname = nil, &block)  # def debug(message = nil, progname = nil, &block)
-          add(#{severity}, message, progname, &block)                    #   add(DEBUG, message, progname, &block)
-        end                                                              # end
-                                                                         #
-        def #{severity.downcase}?                                        # def debug?
-          #{severity} >= @level                                          #   DEBUG >= @level
-        end                                                              # end
-      EOT
-    end
-
-    # Set the auto-flush period. Set to true to flush after every log message,
-    # to an integer to flush every N messages, or to false, nil, or zero to
-    # never auto-flush. If you turn auto-flushing off, be sure to regularly
-    # flush the log yourself -- it will eat up memory until you do.
-    def auto_flushing=(period)
-      @auto_flushing =
-        case period
-        when true;                1
-        when false, nil, 0;       MAX_BUFFER_SIZE
-        when Integer;             period
-        else raise ArgumentError, "Unrecognized auto_flushing period: #{period.inspect}"
-        end
-    end
-
-    def flush
-      @guard.synchronize do
-        unless buffer.empty?
-          old_buffer = buffer
-          @log.write(old_buffer.join)
-        end
-
-        # Important to do this even if buffer was empty or else @buffer will
-        # accumulate empty arrays for each request where nothing was logged.
-        clear_buffer
-      end
-    end
-
-    def close
-      flush
-      @log.close if @log.respond_to?(:close)
-      @log = nil
-    end
-
-    protected
-      def auto_flush
-        flush if buffer.size >= @auto_flushing
-      end
-
-      def buffer
-        @buffer[Thread.current] ||= []
-      end
-
-      def clear_buffer
-        @buffer.delete(Thread.current)
-      end
-  end
-end
@@ -1,248 +0,0 @@
-require 'benchmark'
-
-module ActiveSupport
-  # See ActiveSupport::Cache::Store for documentation.
-  module Cache
-    autoload :FileStore, 'active_support/cache/file_store'
-    autoload :MemoryStore, 'active_support/cache/memory_store'
-    autoload :SynchronizedMemoryStore, 'active_support/cache/synchronized_memory_store'
-    autoload :DRbStore, 'active_support/cache/drb_store'
-    autoload :MemCacheStore, 'active_support/cache/mem_cache_store'
-    autoload :CompressedMemCacheStore, 'active_support/cache/compressed_mem_cache_store'
-
-    module Strategy
-      autoload :LocalCache, 'active_support/cache/strategy/local_cache'
-    end
-
-    # Creates a new CacheStore object according to the given options.
-    #
-    # If no arguments are passed to this method, then a new
-    # ActiveSupport::Cache::MemoryStore object will be returned.
-    #
-    # If you pass a Symbol as the first argument, then a corresponding cache
-    # store class under the ActiveSupport::Cache namespace will be created.
-    # For example:
-    #
-    #   ActiveSupport::Cache.lookup_store(:memory_store)
-    #   # => returns a new ActiveSupport::Cache::MemoryStore object
-    #   
-    #   ActiveSupport::Cache.lookup_store(:drb_store)
-    #   # => returns a new ActiveSupport::Cache::DRbStore object
-    #
-    # Any additional arguments will be passed to the corresponding cache store
-    # class's constructor:
-    #
-    #   ActiveSupport::Cache.lookup_store(:file_store, "/tmp/cache")
-    #   # => same as: ActiveSupport::Cache::FileStore.new("/tmp/cache")
-    #
-    # If the first argument is not a Symbol, then it will simply be returned:
-    #
-    #   ActiveSupport::Cache.lookup_store(MyOwnCacheStore.new)
-    #   # => returns MyOwnCacheStore.new
-    def self.lookup_store(*store_option)
-      store, *parameters = *([ store_option ].flatten)
-
-      case store
-      when Symbol
-        store_class_name = (store == :drb_store ? "DRbStore" : store.to_s.camelize)
-        store_class = ActiveSupport::Cache.const_get(store_class_name)
-        store_class.new(*parameters)
-      when nil
-        ActiveSupport::Cache::MemoryStore.new
-      else
-        store
-      end
-    end
-
-    def self.expand_cache_key(key, namespace = nil)
-      expanded_cache_key = namespace ? "#{namespace}/" : ""
-
-      if ENV["RAILS_CACHE_ID"] || ENV["RAILS_APP_VERSION"]
-        expanded_cache_key << "#{ENV["RAILS_CACHE_ID"] || ENV["RAILS_APP_VERSION"]}/"
-      end
-
-      expanded_cache_key << case
-        when key.respond_to?(:cache_key)
-          key.cache_key
-        when key.is_a?(Array)
-          key.collect { |element| expand_cache_key(element) }.to_param
-        when key
-          key.to_param
-        end.to_s
-
-      expanded_cache_key
-    end
-
-    # An abstract cache store class. There are multiple cache store
-    # implementations, each having its own additional features. See the classes
-    # under the ActiveSupport::Cache module, e.g.
-    # ActiveSupport::Cache::MemCacheStore. MemCacheStore is currently the most
-    # popular cache store for large production websites.
-    #
-    # ActiveSupport::Cache::Store is meant for caching strings. Some cache
-    # store implementations, like MemoryStore, are able to cache arbitrary
-    # Ruby objects, but don't count on every cache store to be able to do that.
-    #
-    #   cache = ActiveSupport::Cache::MemoryStore.new
-    #   
-    #   cache.read("city")   # => nil
-    #   cache.write("city", "Duckburgh")
-    #   cache.read("city")   # => "Duckburgh"
-    class Store
-      cattr_accessor :logger
-
-      attr_reader :silence, :logger_off
-
-      def silence!
-        @silence = true
-        self
-      end
-
-      alias silence? silence
-      alias logger_off? logger_off
-
-      def mute
-        previous_silence, @silence = defined?(@silence) && @silence, true
-        yield
-      ensure
-        @silence = previous_silence
-      end
-
-      # Fetches data from the cache, using the given key. If there is data in
-      # the cache with the given key, then that data is returned.
-      #
-      # If there is no such data in the cache (a cache miss occurred), then
-      # then nil will be returned. However, if a block has been passed, then
-      # that block will be run in the event of a cache miss. The return value
-      # of the block will be written to the cache under the given cache key,
-      # and that return value will be returned.
-      #
-      #   cache.write("today", "Monday")
-      #   cache.fetch("today")  # => "Monday"
-      #   
-      #   cache.fetch("city")   # => nil
-      #   cache.fetch("city") do
-      #     "Duckburgh"
-      #   end
-      #   cache.fetch("city")   # => "Duckburgh"
-      #
-      # You may also specify additional options via the +options+ argument.
-      # Setting <tt>:force => true</tt> will force a cache miss:
-      #
-      #   cache.write("today", "Monday")
-      #   cache.fetch("today", :force => true)  # => nil
-      #
-      # Other options will be handled by the specific cache store implementation.
-      # Internally, #fetch calls #read, and calls #write on a cache miss.
-      # +options+ will be passed to the #read and #write calls.
-      #
-      # For example, MemCacheStore's #write method supports the +:expires_in+
-      # option, which tells the memcached server to automatically expire the
-      # cache item after a certain period. We can use this option with #fetch
-      # too:
-      #
-      #   cache = ActiveSupport::Cache::MemCacheStore.new
-      #   cache.fetch("foo", :force => true, :expires_in => 5.seconds) do
-      #     "bar"
-      #   end
-      #   cache.fetch("foo")  # => "bar"
-      #   sleep(6)
-      #   cache.fetch("foo")  # => nil
-      def fetch(key, options = {})
-        @logger_off = true
-        if !options[:force] && value = read(key, options)
-          @logger_off = false
-          log("hit", key, options)
-          value
-        elsif block_given?
-          @logger_off = false
-          log("miss", key, options)
-
-          value = nil
-          ms = Benchmark.ms { value = yield }
-
-          @logger_off = true
-          write(key, value, options)
-          @logger_off = false
-
-          log('write (will save %.2fms)' % ms, key, nil)
-
-          value
-        end
-      end
-
-      # Fetches data from the cache, using the given key. If there is data in
-      # the cache with the given key, then that data is returned. Otherwise,
-      # nil is returned.
-      #
-      # You may also specify additional options via the +options+ argument.
-      # The specific cache store implementation will decide what to do with
-      # +options+.
-      def read(key, options = nil)
-        log("read", key, options)
-      end
-
-      # Writes the given value to the cache, with the given key.
-      #
-      # You may also specify additional options via the +options+ argument.
-      # The specific cache store implementation will decide what to do with
-      # +options+.
-      # 
-      # For example, MemCacheStore supports the +:expires_in+ option, which
-      # tells the memcached server to automatically expire the cache item after
-      # a certain period:
-      #
-      #   cache = ActiveSupport::Cache::MemCacheStore.new
-      #   cache.write("foo", "bar", :expires_in => 5.seconds)
-      #   cache.read("foo")  # => "bar"
-      #   sleep(6)
-      #   cache.read("foo")  # => nil
-      def write(key, value, options = nil)
-        log("write", key, options)
-      end
-
-      def delete(key, options = nil)
-        log("delete", key, options)
-      end
-
-      def delete_matched(matcher, options = nil)
-        log("delete matched", matcher.inspect, options)
-      end
-
-      def exist?(key, options = nil)
-        log("exist?", key, options)
-      end
-
-      def increment(key, amount = 1)
-        log("incrementing", key, amount)
-        if num = read(key)
-          write(key, num + amount)
-        else
-          nil
-        end
-      end
-
-      def decrement(key, amount = 1)
-        log("decrementing", key, amount)
-        if num = read(key)
-          write(key, num - amount)
-        else
-          nil
-        end
-      end
-
-      private
-        def expires_in(options)
-          expires_in = options && options[:expires_in]
-
-          raise ":expires_in must be a number" if expires_in && !expires_in.is_a?(Numeric)
-
-          expires_in || 0
-        end
-
-        def log(operation, key, options)
-          logger.debug("Cache #{operation}: #{key}#{options ? " (#{options.inspect})" : ""}") if logger && !silence? && !logger_off?
-        end
-    end
-  end
-end
@@ -1,20 +0,0 @@
-module ActiveSupport
-  module Cache
-    class CompressedMemCacheStore < MemCacheStore
-      def read(name, options = nil)
-        if value = super(name, (options || {}).merge(:raw => true))
-          if raw?(options)
-            value
-          else
-            Marshal.load(ActiveSupport::Gzip.decompress(value))
-          end
-        end
-      end
-
-      def write(name, value, options = nil)
-        value = ActiveSupport::Gzip.compress(Marshal.dump(value)) unless raw?(options)
-        super(name, value, (options || {}).merge(:raw => true))
-      end
-    end
-  end
-end
@@ -1,14 +0,0 @@
-module ActiveSupport
-  module Cache
-    class DRbStore < MemoryStore #:nodoc:
-      attr_reader :address
-
-      def initialize(address = 'druby://localhost:9192')
-        require 'drb' unless defined?(DRbObject)
-        super()
-        @address = address
-        @data = DRbObject.new(nil, address)
-      end
-    end
-  end
-end
@@ -1,72 +0,0 @@
-module ActiveSupport
-  module Cache
-    # A cache store implementation which stores everything on the filesystem.
-    class FileStore < Store
-      attr_reader :cache_path
-
-      def initialize(cache_path)
-        @cache_path = cache_path
-      end
-
-      def read(name, options = nil)
-        super
-        File.open(real_file_path(name), 'rb') { |f| Marshal.load(f) } rescue nil
-      end
-
-      def write(name, value, options = nil)
-        super
-        ensure_cache_path(File.dirname(real_file_path(name)))
-        File.atomic_write(real_file_path(name), cache_path) { |f| Marshal.dump(value, f) }
-        value
-      rescue => e
-        logger.error "Couldn't create cache directory: #{name} (#{e.message})" if logger
-      end
-
-      def delete(name, options = nil)
-        super
-        File.delete(real_file_path(name))
-      rescue SystemCallError => e
-        # If there's no cache, then there's nothing to complain about
-      end
-
-      def delete_matched(matcher, options = nil)
-        super
-        search_dir(@cache_path) do |f|
-          if f =~ matcher
-            begin
-              File.delete(f)
-            rescue SystemCallError => e
-              # If there's no cache, then there's nothing to complain about
-            end
-          end
-        end
-      end
-
-      def exist?(name, options = nil)
-        super
-        File.exist?(real_file_path(name))
-      end
-
-      private
-        def real_file_path(name)
-          '%s/%s.cache' % [@cache_path, name.gsub('?', '.').gsub(':', '.')]
-        end
-
-        def ensure_cache_path(path)
-          FileUtils.makedirs(path) unless File.exist?(path)
-        end
-
-        def search_dir(dir, &callback)
-          Dir.foreach(dir) do |d|
-            next if d == "." || d == ".."
-            name = File.join(dir, d)
-            if File.directory?(name)
-              search_dir(name, &callback)
-            else
-              callback.call name
-            end
-          end
-        end
-    end
-  end
-end
@@ -1,143 +0,0 @@
-require 'memcache'
-
-module ActiveSupport
-  module Cache
-    # A cache store implementation which stores data in Memcached:
-    # http://www.danga.com/memcached/
-    #
-    # This is currently the most popular cache store for production websites.
-    #
-    # Special features:
-    # - Clustering and load balancing. One can specify multiple memcached servers,
-    #   and MemCacheStore will load balance between all available servers. If a
-    #   server goes down, then MemCacheStore will ignore it until it goes back
-    #   online.
-    # - Time-based expiry support. See #write and the +:expires_in+ option.
-    # - Per-request in memory cache for all communication with the MemCache server(s).
-    class MemCacheStore < Store
-      module Response # :nodoc:
-        STORED      = "STORED\r\n"
-        NOT_STORED  = "NOT_STORED\r\n"
-        EXISTS      = "EXISTS\r\n"
-        NOT_FOUND   = "NOT_FOUND\r\n"
-        DELETED     = "DELETED\r\n"
-      end
-
-      def self.build_mem_cache(*addresses)
-        addresses = addresses.flatten
-        options = addresses.extract_options!
-        addresses = ["localhost"] if addresses.empty?
-        MemCache.new(addresses, options)
-      end
-
-      # Creates a new MemCacheStore object, with the given memcached server
-      # addresses. Each address is either a host name, or a host-with-port string
-      # in the form of "host_name:port". For example:
-      #
-      #   ActiveSupport::Cache::MemCacheStore.new("localhost", "server-downstairs.localnetwork:8229")
-      #
-      # If no addresses are specified, then MemCacheStore will connect to
-      # localhost port 11211 (the default memcached port).
-      #
-      # Instead of addresses one can pass in a MemCache-like object. For example:
-      #
-      #   require 'memcached' # gem install memcached; uses C bindings to libmemcached
-      #   ActiveSupport::Cache::MemCacheStore.new(Memcached::Rails.new("localhost:11211"))
-      def initialize(*addresses)
-        if addresses.first.respond_to?(:get)
-          @data = addresses.first
-        else
-          @data = self.class.build_mem_cache(*addresses)
-        end
-
-        extend Strategy::LocalCache
-      end
-
-      # Reads multiple keys from the cache.
-      def read_multi(*keys)
-        @data.get_multi keys
-      end
-
-      def read(key, options = nil) # :nodoc:
-        super
-        @data.get(key, raw?(options))
-      rescue MemCache::MemCacheError => e
-        logger.error("MemCacheError (#{e}): #{e.message}")
-        nil
-      end
-
-      # Writes a value to the cache.
-      #
-      # Possible options:
-      # - +:unless_exist+ - set to true if you don't want to update the cache
-      #   if the key is already set.
-      # - +:expires_in+ - the number of seconds that this value may stay in
-      #   the cache. See ActiveSupport::Cache::Store#write for an example.
-      def write(key, value, options = nil)
-        super
-        method = options && options[:unless_exist] ? :add : :set
-        # memcache-client will break the connection if you send it an integer
-        # in raw mode, so we convert it to a string to be sure it continues working.
-        value = value.to_s if raw?(options)
-        response = @data.send(method, key, value, expires_in(options), raw?(options))
-        response == Response::STORED
-      rescue MemCache::MemCacheError => e
-        logger.error("MemCacheError (#{e}): #{e.message}")
-        false
-      end
-
-      def delete(key, options = nil) # :nodoc:
-        super
-        response = @data.delete(key, expires_in(options))
-        response == Response::DELETED
-      rescue MemCache::MemCacheError => e
-        logger.error("MemCacheError (#{e}): #{e.message}")
-        false
-      end
-
-      def exist?(key, options = nil) # :nodoc:
-        # Doesn't call super, cause exist? in memcache is in fact a read
-        # But who cares? Reading is very fast anyway
-        # Local cache is checked first, if it doesn't know then memcache itself is read from
-        !read(key, options).nil?
-      end
-
-      def increment(key, amount = 1) # :nodoc:
-        log("incrementing", key, amount)
-
-        response = @data.incr(key, amount)
-        response == Response::NOT_FOUND ? nil : response
-      rescue MemCache::MemCacheError
-        nil
-      end
-
-      def decrement(key, amount = 1) # :nodoc:
-        log("decrement", key, amount)
-        response = @data.decr(key, amount)
-        response == Response::NOT_FOUND ? nil : response
-      rescue MemCache::MemCacheError
-        nil
-      end
-
-      def delete_matched(matcher, options = nil) # :nodoc:
-        # don't do any local caching at present, just pass
-        # through and let the error happen
-        super
-        raise "Not supported by Memcache"
-      end
-
-      def clear
-        @data.flush_all
-      end
-
-      def stats
-        @data.stats
-      end
-
-      private
-        def raw?(options)
-          options && options[:raw]
-        end
-    end
-  end
-end
@@ -1,52 +0,0 @@
-module ActiveSupport
-  module Cache
-    # A cache store implementation which stores everything into memory in the
-    # same process. If you're running multiple Ruby on Rails server processes
-    # (which is the case if you're using mongrel_cluster or Phusion Passenger),
-    # then this means that your Rails server process instances won't be able
-    # to share cache data with each other. If your application never performs
-    # manual cache item expiry (e.g. when you're using generational cache keys),
-    # then using MemoryStore is ok. Otherwise, consider carefully whether you
-    # should be using this cache store.
-    #
-    # MemoryStore is not only able to store strings, but also arbitrary Ruby
-    # objects.
-    #
-    # MemoryStore is not thread-safe. Use SynchronizedMemoryStore instead
-    # if you need thread-safety.
-    class MemoryStore < Store
-      def initialize
-        @data = {}
-      end
-
-      def read(name, options = nil)
-        super
-        @data[name]
-      end
-
-      def write(name, value, options = nil)
-        super
-        @data[name] = value.freeze
-      end
-
-      def delete(name, options = nil)
-        super
-        @data.delete(name)
-      end
-
-      def delete_matched(matcher, options = nil)
-        super
-        @data.delete_if { |k,v| k =~ matcher }
-      end
-
-      def exist?(name,options = nil)
-        super
-        @data.has_key?(name)
-      end
-
-      def clear
-        @data.clear
-      end
-    end
-  end
-end
@@ -1,104 +0,0 @@
-module ActiveSupport
-  module Cache
-    module Strategy
-      module LocalCache
-        # this allows caching of the fact that there is nothing in the remote cache
-        NULL = 'remote_cache_store:null'
-
-        def with_local_cache
-          Thread.current[thread_local_key] = MemoryStore.new
-          yield
-        ensure
-          Thread.current[thread_local_key] = nil
-        end
-
-        def middleware
-          @middleware ||= begin
-            klass = Class.new
-            klass.class_eval(<<-EOS, __FILE__, __LINE__)
-              def initialize(app)
-                @app = app
-              end
-
-              def call(env)
-                Thread.current[:#{thread_local_key}] = MemoryStore.new
-                @app.call(env)
-              ensure
-                Thread.current[:#{thread_local_key}] = nil
-              end
-            EOS
-            klass
-          end
-        end
-
-        def read(key, options = nil)
-          value = local_cache && local_cache.read(key)
-          if value == NULL
-            nil
-          elsif value.nil?
-            value = super
-            local_cache.mute { local_cache.write(key, value || NULL) } if local_cache
-            value.duplicable? ? value.dup : value
-          else
-            # forcing the value to be immutable
-            value.duplicable? ? value.dup : value
-          end
-        end
-
-        def write(key, value, options = nil)
-          value = value.to_s if respond_to?(:raw?) && raw?(options)
-          local_cache.mute { local_cache.write(key, value || NULL) } if local_cache
-          super
-        end
-
-        def delete(key, options = nil)
-          local_cache.mute { local_cache.write(key, NULL) } if local_cache
-          super
-        end
-
-        def exist(key, options = nil)
-          value = local_cache.read(key) if local_cache
-          if value == NULL
-            false
-          elsif value
-            true
-          else
-            super
-          end
-        end
-
-        def increment(key, amount = 1)
-          if value = super
-            local_cache.mute { local_cache.write(key, value.to_s) } if local_cache
-            value
-          else
-            nil
-          end
-        end
-
-        def decrement(key, amount = 1)
-          if value = super
-            local_cache.mute { local_cache.write(key, value.to_s) } if local_cache
-            value
-          else
-            nil
-          end
-        end
-
-        def clear
-          local_cache.clear if local_cache
-          super
-        end
-
-        private
-          def thread_local_key
-            @thread_local_key ||= "#{self.class.name.underscore}_local_cache".gsub("/", "_").to_sym
-          end
-
-          def local_cache
-            Thread.current[thread_local_key]
-          end
-      end
-    end
-  end
-end
@@ -1,47 +0,0 @@
-module ActiveSupport
-  module Cache
-    # Like MemoryStore, but thread-safe.
-    class SynchronizedMemoryStore < MemoryStore
-      def initialize
-        super
-        @guard = Monitor.new
-      end
-
-      def fetch(key, options = {})
-        @guard.synchronize { super }
-      end
-
-      def read(name, options = nil)
-        @guard.synchronize { super }
-      end
-
-      def write(name, value, options = nil)
-        @guard.synchronize { super }
-      end
-
-      def delete(name, options = nil)
-        @guard.synchronize { super }
-      end
-
-      def delete_matched(matcher, options = nil)
-        @guard.synchronize { super }
-      end
-
-      def exist?(name,options = nil)
-        @guard.synchronize { super }
-      end
-
-      def increment(key, amount = 1)
-        @guard.synchronize { super }
-      end
-
-      def decrement(key, amount = 1)
-        @guard.synchronize { super }
-      end
-
-      def clear
-        @guard.synchronize { super }
-      end
-    end
-  end
-end
@@ -1,279 +0,0 @@
-module ActiveSupport
-  # Callbacks are hooks into the lifecycle of an object that allow you to trigger logic
-  # before or after an alteration of the object state.
-  #
-  # Mixing in this module allows you to define callbacks in your class.
-  #
-  # Example:
-  #   class Storage
-  #     include ActiveSupport::Callbacks
-  #
-  #     define_callbacks :before_save, :after_save
-  #   end
-  #
-  #   class ConfigStorage < Storage
-  #     before_save :saving_message
-  #     def saving_message
-  #       puts "saving..."
-  #     end
-  #
-  #     after_save do |object|
-  #       puts "saved"
-  #     end
-  #
-  #     def save
-  #       run_callbacks(:before_save)
-  #       puts "- save"
-  #       run_callbacks(:after_save)
-  #     end
-  #   end
-  #
-  #   config = ConfigStorage.new
-  #   config.save
-  #
-  # Output:
-  #   saving...
-  #   - save
-  #   saved
-  #
-  # Callbacks from parent classes are inherited.
-  #
-  # Example:
-  #   class Storage
-  #     include ActiveSupport::Callbacks
-  #
-  #     define_callbacks :before_save, :after_save
-  #
-  #     before_save :prepare
-  #     def prepare
-  #       puts "preparing save"
-  #     end
-  #   end
-  #
-  #   class ConfigStorage < Storage
-  #     before_save :saving_message
-  #     def saving_message
-  #       puts "saving..."
-  #     end
-  #
-  #     after_save do |object|
-  #       puts "saved"
-  #     end
-  #
-  #     def save
-  #       run_callbacks(:before_save)
-  #       puts "- save"
-  #       run_callbacks(:after_save)
-  #     end
-  #   end
-  #
-  #   config = ConfigStorage.new
-  #   config.save
-  #
-  # Output:
-  #   preparing save
-  #   saving...
-  #   - save
-  #   saved
-  module Callbacks
-    class CallbackChain < Array
-      def self.build(kind, *methods, &block)
-        methods, options = extract_options(*methods, &block)
-        methods.map! { |method| Callback.new(kind, method, options) }
-        new(methods)
-      end
-
-      def run(object, options = {}, &terminator)
-        enumerator = options[:enumerator] || :each
-
-        unless block_given?
-          send(enumerator) { |callback| callback.call(object) }
-        else
-          send(enumerator) do |callback|
-            result = callback.call(object)
-            break result if terminator.call(result, object)
-          end
-        end
-      end
-
-      # TODO: Decompose into more Array like behavior
-      def replace_or_append!(chain)
-        if index = index(chain)
-          self[index] = chain
-        else
-          self << chain
-        end
-        self
-      end
-
-      def find(callback, &block)
-        select { |c| c == callback && (!block_given? || yield(c)) }.first
-      end
-
-      def delete(callback)
-        super(callback.is_a?(Callback) ? callback : find(callback))
-      end
-
-      private
-        def self.extract_options(*methods, &block)
-          methods.flatten!
-          options = methods.extract_options!
-          methods << block if block_given?
-          return methods, options
-        end
-
-        def extract_options(*methods, &block)
-          self.class.extract_options(*methods, &block)
-        end
-    end
-
-    class Callback
-      attr_reader :kind, :method, :identifier, :options
-
-      def initialize(kind, method, options = {})
-        @kind       = kind
-        @method     = method
-        @identifier = options[:identifier]
-        @options    = options
-      end
-
-      def ==(other)
-        case other
-        when Callback
-          (self.identifier && self.identifier == other.identifier) || self.method == other.method
-        else
-          (self.identifier && self.identifier == other) || self.method == other
-        end
-      end
-
-      def eql?(other)
-        self == other
-      end
-
-      def dup
-        self.class.new(@kind, @method, @options.dup)
-      end
-
-      def hash
-        if @identifier
-          @identifier.hash
-        else
-          @method.hash
-        end
-      end
-
-      def call(*args, &block)
-        evaluate_method(method, *args, &block) if should_run_callback?(*args)
-      rescue LocalJumpError
-        raise ArgumentError,
-          "Cannot yield from a Proc type filter. The Proc must take two " +
-          "arguments and execute #call on the second argument."
-      end
-
-      private
-        def evaluate_method(method, *args, &block)
-          case method
-            when Symbol
-              object = args.shift
-              object.send(method, *args, &block)
-            when String
-              eval(method, args.first.instance_eval { binding })
-            when Proc, Method
-              method.call(*args, &block)
-            else
-              if method.respond_to?(kind)
-                method.send(kind, *args, &block)
-              else
-                raise ArgumentError,
-                  "Callbacks must be a symbol denoting the method to call, a string to be evaluated, " +
-                  "a block to be invoked, or an object responding to the callback method."
-              end
-          end
-        end
-
-        def should_run_callback?(*args)
-          [options[:if]].flatten.compact.all? { |a| evaluate_method(a, *args) } &&
-          ![options[:unless]].flatten.compact.any? { |a| evaluate_method(a, *args) }
-        end
-    end
-
-    def self.included(base)
-      base.extend ClassMethods
-    end
-
-    module ClassMethods
-      def define_callbacks(*callbacks)
-        callbacks.each do |callback|
-          class_eval <<-"end_eval"
-            def self.#{callback}(*methods, &block)                             # def self.before_save(*methods, &block)
-              callbacks = CallbackChain.build(:#{callback}, *methods, &block)  #   callbacks = CallbackChain.build(:before_save, *methods, &block)
-              @#{callback}_callbacks ||= CallbackChain.new                     #   @before_save_callbacks ||= CallbackChain.new
-              @#{callback}_callbacks.concat callbacks                          #   @before_save_callbacks.concat callbacks
-            end                                                                # end
-                                                                               #
-            def self.#{callback}_callback_chain                                # def self.before_save_callback_chain
-              @#{callback}_callbacks ||= CallbackChain.new                     #   @before_save_callbacks ||= CallbackChain.new
-                                                                               #
-              if superclass.respond_to?(:#{callback}_callback_chain)           #   if superclass.respond_to?(:before_save_callback_chain)
-                CallbackChain.new(                                             #     CallbackChain.new(
-                  superclass.#{callback}_callback_chain +                      #       superclass.before_save_callback_chain +
-                  @#{callback}_callbacks                                       #       @before_save_callbacks
-                )                                                              #     )
-              else                                                             #   else
-                @#{callback}_callbacks                                         #     @before_save_callbacks
-              end                                                              #   end
-            end                                                                # end
-          end_eval
-        end
-      end
-    end
-
-    # Runs all the callbacks defined for the given options.
-    #
-    # If a block is given it will be called after each callback receiving as arguments:
-    #
-    #  * the result from the callback
-    #  * the object which has the callback
-    #
-    # If the result from the block evaluates to false, the callback chain is stopped.
-    #
-    # Example:
-    #   class Storage
-    #     include ActiveSupport::Callbacks
-    #
-    #     define_callbacks :before_save, :after_save
-    #   end
-    #
-    #   class ConfigStorage < Storage
-    #     before_save :pass
-    #     before_save :pass
-    #     before_save :stop
-    #     before_save :pass
-    #
-    #     def pass
-    #       puts "pass"
-    #     end
-    #
-    #     def stop
-    #       puts "stop"
-    #       return false
-    #     end
-    #
-    #     def save
-    #       result = run_callbacks(:before_save) { |result, object| result == false }
-    #       puts "- save" if result
-    #     end
-    #   end
-    #
-    #   config = ConfigStorage.new
-    #   config.save
-    #
-    # Output:
-    #   pass
-    #   pass
-    #   stop
-    def run_callbacks(kind, options = {}, &block)
-      self.class.send("#{kind}_callback_chain").run(self, options, &block)
-    end
-  end
-end
@@ -1,8 +0,0 @@
-filenames = Dir["#{File.dirname(__FILE__)}/core_ext/*.rb"].sort.map do |path|
-  File.basename(path, '.rb')
-end
-
-# deprecated
-filenames -= %w(blank)
-
-filenames.each { |filename| require "active_support/core_ext/#{filename}" }
@@ -1,15 +0,0 @@
-require 'active_support/core_ext/array/access'
-require 'active_support/core_ext/array/conversions'
-require 'active_support/core_ext/array/extract_options'
-require 'active_support/core_ext/array/grouping'
-require 'active_support/core_ext/array/random_access'
-require 'active_support/core_ext/array/wrapper'
-
-class Array #:nodoc:
-  include ActiveSupport::CoreExtensions::Array::Access
-  include ActiveSupport::CoreExtensions::Array::Conversions
-  include ActiveSupport::CoreExtensions::Array::ExtractOptions
-  include ActiveSupport::CoreExtensions::Array::Grouping
-  include ActiveSupport::CoreExtensions::Array::RandomAccess
-  extend ActiveSupport::CoreExtensions::Array::Wrapper
-end
@@ -1,53 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Array #:nodoc:
-      # Makes it easier to access parts of an array.
-      module Access
-        # Returns the tail of the array from +position+.
-        #
-        #   %w( a b c d ).from(0)  # => %w( a b c d )
-        #   %w( a b c d ).from(2)  # => %w( c d )
-        #   %w( a b c d ).from(10) # => nil
-        #   %w().from(0)           # => nil
-        def from(position)
-          self[position..-1]
-        end
-        
-        # Returns the beginning of the array up to +position+.
-        #
-        #   %w( a b c d ).to(0)  # => %w( a )
-        #   %w( a b c d ).to(2)  # => %w( a b c )
-        #   %w( a b c d ).to(10) # => %w( a b c d )
-        #   %w().to(0)           # => %w()
-        def to(position)
-          self[0..position]
-        end
-
-        # Equal to <tt>self[1]</tt>.
-        def second
-          self[1]
-        end
-
-        # Equal to <tt>self[2]</tt>.
-        def third
-          self[2]
-        end
-
-        # Equal to <tt>self[3]</tt>.
-        def fourth
-          self[3]
-        end
-
-        # Equal to <tt>self[4]</tt>.
-        def fifth
-          self[4]
-        end
-
-        # Equal to <tt>self[41]</tt>. Also known as accessing "the reddit".
-        def forty_two
-          self[41]
-        end
-      end
-    end
-  end
-end
@@ -1,197 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Array #:nodoc:
-      module Conversions
-        # Converts the array to a comma-separated sentence where the last element is joined by the connector word. Options:
-        # * <tt>:words_connector</tt> - The sign or word used to join the elements in arrays with two or more elements (default: ", ")
-        # * <tt>:two_words_connector</tt> - The sign or word used to join the elements in arrays with two elements (default: " and ")
-        # * <tt>:last_word_connector</tt> - The sign or word used to join the last element in arrays with three or more elements (default: ", and ")
-        def to_sentence(options = {})
-          default_words_connector     = I18n.translate(:'support.array.words_connector',     :locale => options[:locale])
-          default_two_words_connector = I18n.translate(:'support.array.two_words_connector', :locale => options[:locale])
-          default_last_word_connector = I18n.translate(:'support.array.last_word_connector', :locale => options[:locale])
-
-          # Try to emulate to_senteces previous to 2.3
-          if options.has_key?(:connector) || options.has_key?(:skip_last_comma)
-            ::ActiveSupport::Deprecation.warn(":connector has been deprecated. Use :words_connector instead", caller) if options.has_key? :connector
-            ::ActiveSupport::Deprecation.warn(":skip_last_comma has been deprecated. Use :last_word_connector instead", caller) if options.has_key? :skip_last_comma
-
-            skip_last_comma = options.delete :skip_last_comma
-            if connector = options.delete(:connector)
-              options[:last_word_connector] ||= skip_last_comma ? connector : ", #{connector}"
-            else
-              options[:last_word_connector] ||= skip_last_comma ? default_two_words_connector : default_last_word_connector
-            end
-          end
-          
-          options.assert_valid_keys(:words_connector, :two_words_connector, :last_word_connector, :locale)       
-          options.reverse_merge! :words_connector => default_words_connector, :two_words_connector => default_two_words_connector, :last_word_connector => default_last_word_connector
-          
-          case length
-            when 0
-              ""
-            when 1
-              self[0].to_s
-            when 2
-              "#{self[0]}#{options[:two_words_connector]}#{self[1]}"
-            else
-              "#{self[0...-1].join(options[:words_connector])}#{options[:last_word_connector]}#{self[-1]}"
-          end
-        end
-        
-
-        # Calls <tt>to_param</tt> on all its elements and joins the result with
-        # slashes. This is used by <tt>url_for</tt> in Action Pack. 
-        def to_param
-          collect { |e| e.to_param }.join '/'
-        end
-
-        # Converts an array into a string suitable for use as a URL query string,
-        # using the given +key+ as the param name.
-        #
-        #   ['Rails', 'coding'].to_query('hobbies') # => "hobbies%5B%5D=Rails&hobbies%5B%5D=coding"
-        def to_query(key)
-          prefix = "#{key}[]"
-          collect { |value| value.to_query(prefix) }.join '&'
-        end
-
-        def self.included(base) #:nodoc:
-          base.class_eval do
-            alias_method :to_default_s, :to_s
-            alias_method :to_s, :to_formatted_s
-          end
-        end
-
-        # Converts a collection of elements into a formatted string by calling
-        # <tt>to_s</tt> on all elements and joining them:
-        #
-        #   Blog.find(:all).to_formatted_s # => "First PostSecond PostThird Post"
-        #
-        # Adding in the <tt>:db</tt> argument as the format yields a prettier
-        # output:
-        #
-        #   Blog.find(:all).to_formatted_s(:db) # => "First Post,Second Post,Third Post"
-        def to_formatted_s(format = :default)
-          case format
-            when :db
-              if respond_to?(:empty?) && self.empty?
-                "null"
-              else
-                collect { |element| element.id }.join(",")
-              end
-            else
-              to_default_s
-          end
-        end
-
-        # Returns a string that represents this array in XML by sending +to_xml+
-        # to each element. Active Record collections delegate their representation
-        # in XML to this method.
-        #
-        # All elements are expected to respond to +to_xml+, if any of them does
-        # not an exception is raised.
-        #
-        # The root node reflects the class name of the first element in plural
-        # if all elements belong to the same type and that's not Hash:
-        #
-        #   customer.projects.to_xml
-        #
-        #   <?xml version="1.0" encoding="UTF-8"?>
-        #   <projects type="array">
-        #     <project>
-        #       <amount type="decimal">20000.0</amount>
-        #       <customer-id type="integer">1567</customer-id>
-        #       <deal-date type="date">2008-04-09</deal-date>
-        #       ...
-        #     </project>
-        #     <project>
-        #       <amount type="decimal">57230.0</amount>
-        #       <customer-id type="integer">1567</customer-id>
-        #       <deal-date type="date">2008-04-15</deal-date>
-        #       ...
-        #     </project>
-        #   </projects>
-        #
-        # Otherwise the root element is "records":
-        #
-        #   [{:foo => 1, :bar => 2}, {:baz => 3}].to_xml
-        #
-        #   <?xml version="1.0" encoding="UTF-8"?>
-        #   <records type="array">
-        #     <record>
-        #       <bar type="integer">2</bar>
-        #       <foo type="integer">1</foo>
-        #     </record>
-        #     <record>
-        #       <baz type="integer">3</baz>
-        #     </record>
-        #   </records>
-        #
-        # If the collection is empty the root element is "nil-classes" by default:
-        #
-        #   [].to_xml
-        #
-        #   <?xml version="1.0" encoding="UTF-8"?>
-        #   <nil-classes type="array"/>
-        #
-        # To ensure a meaningful root element use the <tt>:root</tt> option:
-        #
-        #   customer_with_no_projects.projects.to_xml(:root => "projects")
-        #
-        #   <?xml version="1.0" encoding="UTF-8"?>
-        #   <projects type="array"/>
-        #
-        # By default root children have as node name the one of the root
-        # singularized. You can change it with the <tt>:children</tt> option.
-        #
-        # The +options+ hash is passed downwards:
-        #
-        #   Message.all.to_xml(:skip_types => true)
-        #
-        #   <?xml version="1.0" encoding="UTF-8"?>
-        #   <messages>
-        #     <message>
-        #       <created-at>2008-03-07T09:58:18+01:00</created-at>
-        #       <id>1</id>
-        #       <name>1</name>
-        #       <updated-at>2008-03-07T09:58:18+01:00</updated-at>
-        #       <user-id>1</user-id>
-        #     </message>
-        #   </messages>
-        #
-        def to_xml(options = {})
-          raise "Not all elements respond to to_xml" unless all? { |e| e.respond_to? :to_xml }
-          require 'builder' unless defined?(Builder)
-
-          options = options.dup
-          options[:root]     ||= all? { |e| e.is_a?(first.class) && first.class.to_s != "Hash" } ? first.class.to_s.underscore.pluralize : "records"
-          options[:children] ||= options[:root].singularize
-          options[:indent]   ||= 2
-          options[:builder]  ||= Builder::XmlMarkup.new(:indent => options[:indent])
-
-          root     = options.delete(:root).to_s
-          children = options.delete(:children)
-
-          if !options.has_key?(:dasherize) || options[:dasherize]
-            root = root.dasherize
-          end
-
-          options[:builder].instruct! unless options.delete(:skip_instruct)
-
-          opts = options.merge({ :root => children })
-
-          xml = options[:builder]
-          if empty?
-            xml.tag!(root, options[:skip_types] ? {} : {:type => "array"})
-          else
-            xml.tag!(root, options[:skip_types] ? {} : {:type => "array"}) {
-              yield xml if block_given?
-              each { |e| e.to_xml(opts.merge({ :skip_instruct => true })) }
-            }
-          end
-        end
-
-      end
-    end
-  end
-end
@@ -1,20 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Array #:nodoc:
-      module ExtractOptions
-        # Extracts options from a set of arguments. Removes and returns the last
-        # element in the array if it's a hash, otherwise returns a blank hash.
-        #
-        #   def options(*args)
-        #     args.extract_options!
-        #   end
-        #
-        #   options(1, 2)           # => {}
-        #   options(1, 2, :a => :b) # => {:a=>:b}
-        def extract_options!
-          last.is_a?(::Hash) ? pop : {}
-        end
-      end
-    end
-  end
-end
@@ -1,106 +0,0 @@
-require 'enumerator'
-
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Array #:nodoc:
-      module Grouping
-        # Splits or iterates over the array in groups of size +number+,
-        # padding any remaining slots with +fill_with+ unless it is +false+.
-        # 
-        #   %w(1 2 3 4 5 6 7).in_groups_of(3) {|group| p group}
-        #   ["1", "2", "3"]
-        #   ["4", "5", "6"]
-        #   ["7", nil, nil]
-        #
-        #   %w(1 2 3).in_groups_of(2, '&nbsp;') {|group| p group}
-        #   ["1", "2"]
-        #   ["3", "&nbsp;"]
-        #
-        #   %w(1 2 3).in_groups_of(2, false) {|group| p group}
-        #   ["1", "2"]
-        #   ["3"]
-        def in_groups_of(number, fill_with = nil)
-          if fill_with == false
-            collection = self
-          else
-            # size % number gives how many extra we have;
-            # subtracting from number gives how many to add;
-            # modulo number ensures we don't add group of just fill.
-            padding = (number - size % number) % number
-            collection = dup.concat([fill_with] * padding)
-          end
-
-          if block_given?
-            collection.each_slice(number) { |slice| yield(slice) }
-          else
-            returning [] do |groups|
-              collection.each_slice(number) { |group| groups << group }
-            end
-          end
-        end
-
-        # Splits or iterates over the array in +number+ of groups, padding any
-        # remaining slots with +fill_with+ unless it is +false+.
-        #
-        #   %w(1 2 3 4 5 6 7 8 9 10).in_groups(3) {|group| p group}
-        #   ["1", "2", "3", "4"]
-        #   ["5", "6", "7", nil]
-        #   ["8", "9", "10", nil]
-        #
-        #   %w(1 2 3 4 5 6 7).in_groups(3, '&nbsp;') {|group| p group}
-        #   ["1", "2", "3"]
-        #   ["4", "5", "&nbsp;"]
-        #   ["6", "7", "&nbsp;"]
-        #
-        #   %w(1 2 3 4 5 6 7).in_groups(3, false) {|group| p group}
-        #   ["1", "2", "3"]
-        #   ["4", "5"]
-        #   ["6", "7"]
-        def in_groups(number, fill_with = nil)
-          # size / number gives minor group size;
-          # size % number gives how many objects need extra accomodation;
-          # each group hold either division or division + 1 items.
-          division = size / number
-          modulo = size % number
-
-          # create a new array avoiding dup
-          groups = []
-          start = 0
-
-          number.times do |index|
-            length = division + (modulo > 0 && modulo > index ? 1 : 0)
-            padding = fill_with != false &&
-              modulo > 0 && length == division ? 1 : 0
-            groups << slice(start, length).concat([fill_with] * padding)
-            start += length
-          end
-
-          if block_given?
-            groups.each{|g| yield(g) }
-          else
-            groups
-          end
-        end
-
-        # Divides the array into one or more subarrays based on a delimiting +value+
-        # or the result of an optional block.
-        #
-        #   [1, 2, 3, 4, 5].split(3)                # => [[1, 2], [4, 5]]
-        #   (1..10).to_a.split { |i| i % 3 == 0 }   # => [[1, 2], [4, 5], [7, 8], [10]]
-        def split(value = nil)
-          using_block = block_given?
-
-          inject([[]]) do |results, element|
-            if (using_block && yield(element)) || (value == element)
-              results << []
-            else
-              results.last << element
-            end
-
-            results
-          end
-        end
-      end
-    end
-  end
-end
@@ -1,12 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Array #:nodoc:
-      module RandomAccess
-        # Returns a random element from the array.
-        def rand
-          self[Kernel.rand(length)]
-        end
-      end
-    end
-  end
-end
@@ -1,24 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Array #:nodoc:
-      module Wrapper
-        # Wraps the object in an Array unless it's an Array.  Converts the
-        # object to an Array using #to_ary if it implements that.
-        def wrap(object)
-          case object
-          when nil
-            []
-          when self
-            object
-          else
-            if object.respond_to?(:to_ary)
-              object.to_ary
-            else
-              [object]
-            end
-          end
-        end
-      end
-    end
-  end
-end
@@ -1,4 +0,0 @@
-require 'active_support/base64'
-require 'active_support/core_ext/base64/encoding'
-
-ActiveSupport::Base64.extend ActiveSupport::CoreExtensions::Base64::Encoding
@@ -1,16 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module Base64 #:nodoc:
-      module Encoding
-        # Encodes the value as base64 without the newline breaks. This makes the base64 encoding readily usable as URL parameters 
-        # or memcache keys without further processing.
-        #
-        #  ActiveSupport::Base64.encode64s("Original unencoded string") 
-        #  # => "T3JpZ2luYWwgdW5lbmNvZGVkIHN0cmluZw=="
-        def encode64s(value)
-          encode64(value).gsub(/\n/, '')
-        end
-      end
-    end
-  end
-end
@@ -1,19 +0,0 @@
-require 'benchmark'
-
-class << Benchmark
-  # Earlier Ruby had a slower implementation.
-  if RUBY_VERSION < '1.8.7'
-    remove_method :realtime
-
-    def realtime
-      r0 = Time.now
-      yield
-      r1 = Time.now
-      r1.to_f - r0.to_f
-    end
-  end
-
-  def ms
-    1000 * realtime { yield }
-  end
-end
@@ -1,6 +0,0 @@
-require 'bigdecimal'
-require 'active_support/core_ext/bigdecimal/conversions'
-
-class BigDecimal#:nodoc:
-  include ActiveSupport::CoreExtensions::BigDecimal::Conversions
-end
@@ -1,37 +0,0 @@
-require 'yaml'
-
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module BigDecimal #:nodoc:
-      module Conversions
-        DEFAULT_STRING_FORMAT = 'F'.freeze
-        YAML_TAG = 'tag:yaml.org,2002:float'.freeze
-        YAML_MAPPING = { 'Infinity' => '.Inf', '-Infinity' => '-.Inf', 'NaN' => '.NaN' }
-
-        def self.included(base) #:nodoc:
-          base.class_eval do
-            alias_method :_original_to_s, :to_s
-            alias_method :to_s, :to_formatted_s
-
-            yaml_as YAML_TAG
-          end
-        end
-
-        def to_formatted_s(format = DEFAULT_STRING_FORMAT)
-          _original_to_s(format)
-        end
-
-        # This emits the number without any scientific notation.
-        # This is better than self.to_f.to_s since it doesn't lose precision.
-        #
-        # Note that reconstituting YAML floats to native floats may lose precision.
-        def to_yaml(opts = {})
-          YAML.quick_emit(nil, opts) do |out|
-            string = to_s
-            out.scalar(YAML_TAG, YAML_MAPPING[string] || string, :plain)
-          end
-        end
-      end
-    end
-  end
-end
@@ -1,2 +0,0 @@
-require 'active_support/core_ext/object/blank'
-ActiveSupport::Deprecation.warn 'require "active_support/core_ext/blank" is deprecated and will be removed in Rails 3. Use require "active_support/core_ext/object/blank" instead.'
@@ -1,5 +0,0 @@
-require 'active_support/core_ext/cgi/escape_skipping_slashes'
-
-class CGI #:nodoc:
-  extend ActiveSupport::CoreExtensions::CGI::EscapeSkippingSlashes
-end
@@ -1,23 +0,0 @@
-module ActiveSupport #:nodoc:
-  module CoreExtensions #:nodoc:
-    module CGI #:nodoc:
-      module EscapeSkippingSlashes #:nodoc:
-        if RUBY_VERSION >= '1.9'
-          def escape_skipping_slashes(str)
-            str = str.join('/') if str.respond_to? :join
-            str.gsub(/([^ \/a-zA-Z0-9_.-])/n) do
-              "%#{$1.unpack('H2' * $1.bytesize).join('%').upcase}"
-            end.tr(' ', '+')
-          end
-        else
-          def escape_skipping_slashes(str)
-            str = str.join('/') if str.respond_to? :join
-            str.gsub(/([^ \/a-zA-Z0-9_.-])/n) do
-              "%#{$1.unpack('H2').first.upcase}"
-            end.tr(' ', '+')
-          end
-        end
-      end
-    end
-  end
-end
@@ -1,4 +0,0 @@
-require 'active_support/core_ext/class/attribute_accessors'
-require 'active_support/core_ext/class/inheritable_attributes'
-require 'active_support/core_ext/class/removal'
-require 'active_support/core_ext/class/delegating_attributes'
@@ -1,54 +0,0 @@
-# Extends the class object with class and instance accessors for class attributes,
-# just like the native attr* accessors for instance attributes.
-#
-#  class Person
-#    cattr_accessor :hair_colors
-#  end
-#
-#  Person.hair_colors = [:brown, :black, :blonde, :red]
-class Class
-  def cattr_reader(*syms)
-    syms.flatten.each do |sym|
-      next if sym.is_a?(Hash)
-      class_eval(<<-EOS, __FILE__, __LINE__)
-        unless defined? @@#{sym}  # unless defined? @@hair_colors
-          @@#{sym} = nil          #   @@hair_colors = nil
-        end                       # end
-                                  #
-        def self.#{sym}           # def self.hair_colors
-          @@#{sym}                #   @@hair_colors
-        end                       # end
-                                  #
-        def #{sym}                # def hair_colors
-          @@#{sym}                #   @@hair_colors
-        end                       # end
-      EOS
-    end
-  end
-
-  def cattr_writer(*syms)
-    options = syms.extract_options!
-    syms.flatten.each do |sym|
-      class_eval(<<-EOS, __FILE__, __LINE__)
-        unless defined? @@#{sym}                       # unless defined? @@hair_colors
-          @@#{sym} = nil                               #   @@hair_colors = nil
-        end                                            # end
-                                                       #
-        def self.#{sym}=(obj)                          # def self.hair_colors=(obj)
-          @@#{sym} = obj                               #   @@hair_colors = obj
-        end                                            # end
-                                                       #
-        #{"                                            #
-        def #{sym}=(obj)                               # def hair_colors=(obj)
-          @@#{sym} = obj                               #   @@hair_colors = obj
-        end                                            # end
-        " unless options[:instance_writer] == false }  # # instance writer above is generated unless options[:instance_writer] == false
-      EOS
-    end
-  end
-
-  def cattr_accessor(*syms)
-    cattr_reader(*syms)
-    cattr_writer(*syms)
-  end
-end
@@ -1,47 +0,0 @@
-# These class attributes behave something like the class
-# inheritable accessors.  But instead of copying the hash over at
-# the time the subclass is first defined,  the accessors simply
-# delegate to their superclass unless they have been given a 
-# specific value.  This stops the strange situation where values 
-# set after class definition don't get applied to subclasses.
-class Class
-  def superclass_delegating_reader(*names)
-    class_name_to_stop_searching_on = self.superclass.name.blank? ? "Object" : self.superclass.name
-    names.each do |name|
-      class_eval <<-EOS
-      def self.#{name}                                            # def self.only_reader
-        if defined?(@#{name})                                     #   if defined?(@only_reader)
-          @#{name}                                                #     @only_reader
-        elsif superclass < #{class_name_to_stop_searching_on} &&  #   elsif superclass < Object &&
-              superclass.respond_to?(:#{name})                    #         superclass.respond_to?(:only_reader)
-          superclass.#{name}                                      #     superclass.only_reader
-        end                                                       #   end
-      end                                                         # end
-      def #{name}                                                 # def only_reader
-        self.class.#{name}                                        #   self.class.only_reader
-      end                                                         # end
-      def self.#{name}?                                           # def self.only_reader?
-        !!#{name}                                                 #   !!only_reader
-      end                                                         # end
-      def #{name}?                                                # def only_reader?
-        !!#{name}                                                 #   !!only_reader
-      end                                                         # end
-      EOS
-    end
-  end
-
-  def superclass_delegating_writer(*names)
-    names.each do |name|
-      class_eval <<-EOS
-        def self.#{name}=(value)  # def self.only_writer=(value)
-          @#{name} = value        #   @only_writer = value
-        end                       # end
-      EOS
-    end
-  end
-
-  def superclass_delegating_accessor(*names)
-    superclass_delegating_reader(*names)
-    superclass_delegating_writer(*names)
-  end
-end
@@ -1,140 +0,0 @@
-# Retain for backward compatibility.  Methods are now included in Class.
-module ClassInheritableAttributes # :nodoc:
-end
-
-# Allows attributes to be shared within an inheritance hierarchy, but where each descendant gets a copy of
-# their parents' attributes, instead of just a pointer to the same. This means that the child can add elements
-# to, for example, an array without those additions being shared with either their parent, siblings, or
-# children, which is unlike the regular class-level attributes that are shared across the entire hierarchy.
-class Class # :nodoc:
-  def class_inheritable_reader(*syms)
-    syms.each do |sym|
-      next if sym.is_a?(Hash)
-      class_eval <<-EOS
-        def self.#{sym}                        # def self.before_add_for_comments
-          read_inheritable_attribute(:#{sym})  #   read_inheritable_attribute(:before_add_for_comments)
-        end                                    # end
-                                               #
-        def #{sym}                             # def before_add_for_comments
-          self.class.#{sym}                    #   self.class.before_add_for_comments
-        end                                    # end
-      EOS
-    end
-  end
-
-  def class_inheritable_writer(*syms)
-    options = syms.extract_options!
-    syms.each do |sym|
-      class_eval <<-EOS
-        def self.#{sym}=(obj)                          # def self.color=(obj)
-          write_inheritable_attribute(:#{sym}, obj)    #   write_inheritable_attribute(:color, obj)
-        end                                            # end
-                                                       #
-        #{"                                            #
-        def #{sym}=(obj)                               # def color=(obj)
-          self.class.#{sym} = obj                      #   self.class.color = obj
-        end                                            # end
-        " unless options[:instance_writer] == false }  # # the writer above is generated unless options[:instance_writer] == false
-      EOS
-    end
-  end
-
-  def class_inheritable_array_writer(*syms)
-    options = syms.extract_options!
-    syms.each do |sym|
-      class_eval <<-EOS
-        def self.#{sym}=(obj)                          # def self.levels=(obj)
-          write_inheritable_array(:#{sym}, obj)        #   write_inheritable_array(:levels, obj)
-        end                                            # end
-                                                       #
-        #{"                                            #
-        def #{sym}=(obj)                               # def levels=(obj)
-          self.class.#{sym} = obj                      #   self.class.levels = obj
-        end                                            # end
-        " unless options[:instance_writer] == false }  # # the writer above is generated unless options[:instance_writer] == false
-      EOS
-    end
-  end
-
-  def class_inheritable_hash_writer(*syms)
-    options = syms.extract_options!
-    syms.each do |sym|
-      class_eval <<-EOS
-        def self.#{sym}=(obj)                          # def self.nicknames=(obj)
-          write_inheritable_hash(:#{sym}, obj)         #   write_inheritable_hash(:nicknames, obj)
-        end                                            # end
-                                                       #
-        #{"                                            #
-        def #{sym}=(obj)                               # def nicknames=(obj)
-          self.class.#{sym} = obj                      #   self.class.nicknames = obj
-        end                                            # end
-        " unless options[:instance_writer] == false }  # # the writer above is generated unless options[:instance_writer] == false
-      EOS
-    end
-  end
-
-  def class_inheritable_accessor(*syms)
-    class_inheritable_reader(*syms)
-    class_inheritable_writer(*syms)
-  end
-
-  def class_inheritable_array(*syms)
-    class_inheritable_reader(*syms)
-    class_inheritable_array_writer(*syms)
-  end
-
-  def class_inheritable_hash(*syms)
-    class_inheritable_reader(*syms)
-    class_inheritable_hash_writer(*syms)
-  end
-
-  def inheritable_attributes
-    @inheritable_attributes ||= EMPTY_INHERITABLE_ATTRIBUTES
-  end
-
-  def write_inheritable_attribute(key, value)
-    if inheritable_attributes.equal?(EMPTY_INHERITABLE_ATTRIBUTES)
-      @inheritable_attributes = {}
-    end
-    inheritable_attributes[key] = value
-  end
-
-  def write_inheritable_array(key, elements)
-    write_inheritable_attribute(key, []) if read_inheritable_attribute(key).nil?
-    write_inheritable_attribute(key, read_inheritable_attribute(key) + elements)
-  end
-
-  def write_inheritable_hash(key, hash)
-    write_inheritable_attribute(key, {}) if read_inheritable_attribute(key).nil?
-    write_inheritable_attribute(key, read_inheritable_attribute(key).merge(hash))
-  end
-
-  def read_inheritable_attribute(key)
-    inheritable_attributes[key]
-  end
-
-  def reset_inheritable_attributes
-    @inheritable_attributes = EMPTY_INHERITABLE_ATTRIBUTES
-  end
-
-  private
-    # Prevent this constant from being created multiple times
-    EMPTY_INHERITABLE_ATTRIBUTES = {}.freeze unless const_defined?(:EMPTY_INHERITABLE_ATTRIBUTES)
-
-    def inherited_with_inheritable_attributes(child)
-      inherited_without_inheritable_attributes(child) if respond_to?(:inherited_without_inheritable_attributes)
-
-      if inheritable_attributes.equal?(EMPTY_INHERITABLE_ATTRIBUTES)
-        new_inheritable_attributes = EMPTY_INHERITABLE_ATTRIBUTES
-      else
-        new_inheritable_attributes = inheritable_attributes.inject({}) do |memo, (key, value)|
-          memo.update(key => value.duplicable? ? value.dup : value)
-        end
-      end
-
-      child.instance_variable_set('@inheritable_attributes', new_inheritable_attributes)
-    end
-
-    alias inherited_without_inheritable_attributes inherited
-    alias inherited inherited_with_inheritable_attributes
-end
@@ -1,50 +0,0 @@
-class Class #:nodoc:
-  
-  # Unassociates the class with its subclasses and removes the subclasses
-  # themselves.
-  #
-  #   Integer.remove_subclasses # => [Bignum, Fixnum]
-  #   Fixnum                    # => NameError: uninitialized constant Fixnum
-  def remove_subclasses
-    Object.remove_subclasses_of(self)
-  end
-
-  # Returns an array with the names of the subclasses of +self+ as strings.
-  #
-  #   Integer.subclasses # => ["Bignum", "Fixnum"]
-  def subclasses
-    Object.subclasses_of(self).map { |o| o.to_s }
-  end
-
-  # Removes the classes in +klasses+ from their parent module.
-  #
-  # Ordinary classes belong to some module via a constant. This method computes
-  # that constant name from the class name and removes it from the module it
-  # belongs to.
-  #
-  #   Object.remove_class(Integer) # => [Integer]
-  #   Integer                      # => NameError: uninitialized constant Integer
-  #
-  # Take into account that in general the class object could be still stored
-  # somewhere else.
-  #
-  #   i = Integer                  # => Integer
-  #   Object.remove_class(Integer) # => [Integer]
-  #   Integer                      # => NameError: uninitialized constant Integer
-  #   i.subclasses                 # => ["Bignum", "Fixnum"]
-  #   Fixnum.superclass            # => Integer
-  def remove_class(*klasses)
-    klasses.flatten.each do |klass|
-      # Skip this class if there is nothing bound to this name
-      next unless defined?(klass.name)
-      
-      basename = klass.to_s.split("::").last
-      parent = klass.parent
-      
-      # Skip this class if it does not match the current one bound to this name
-      next unless parent.const_defined?(basename) && klass = parent.const_get(basename)
-
-      parent.instance_eval { remove_const basename } unless parent == klass
-    end
-  end
-end
@@ -1,10 +0,0 @@
-require 'date'
-require 'active_support/core_ext/date/behavior'
-require 'active_support/core_ext/date/calculations'
-require 'active_support/core_ext/date/conversions'
-
-class Date#:nodoc:
-  include ActiveSupport::CoreExtensions::Date::Behavior
-  include ActiveSupport::CoreExtensions::Date::Calculations
-  include ActiveSupport::CoreExtensions::Date::Conversions
-end
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Jonathan Cran	f9527d8e29	Merge branch 'release/2012032101' into stable	2012-03-26 22:47:42 -05:00
Tod Beardsley	1c56403272	MS12-020 not MS12-002	2012-03-21 13:57:47 -05:00
Jonathan Cran	779ff22770	Merge branch 'release/2012031401'	2012-03-20 11:49:41 -05:00
Jonathan Cran	7923288dfd	Merge branch 'release/2012031401' into stable	2012-03-20 11:39:17 -05:00
Jonathan Cran	37a3af105a	Merge branch 'stable' of r7.github.com:rapid7/metasploit-framework into stable	2012-03-20 11:38:52 -05:00
Jonathan Cran	ca0e36aa04	Merge branch 'rails3' of r7.github.com:rapid7/metasploit-framework into stable	2012-03-15 15:01:08 -05:00
Jonathan Cran	f10e00e3f7	Merge branch 'release/2012031401' of r7.github.com:rapid7/metasploit-framework into release/2012031401	2012-03-14 16:38:36 -05:00
Jonathan Cran	33af203de3	Merge branch 'master' of r7.github.com:rapid7/metasploit-framework into release/2012031401	2012-03-13 18:34:42 -05:00
HD Moore	8afa25e359	Merge branch 'master' of github.com:rapid7/metasploit-framework into release/2012031401	2012-03-12 23:29:31 -05:00
Jonathan Cran	95128fcad8	Merge branch 'release/2012030701' into stable	2012-03-12 17:25:46 -05:00
Jonathan Cran	0cb151ddc6	Merge branch 'release/2012030701' into stable	2012-03-12 17:23:09 -05:00
Jonathan Cran	cdbdd476c9	Merge branch 'release/2012030701' into stable	2012-03-12 17:14:32 -05:00
David Maloney	7124971d00	Adds mixin for looking up Mime Types by extension	2012-03-12 16:56:40 -05:00
Matt Buck	b7ca835316	Merge from develop.	2012-03-06 19:38:53 -06:00
Trevor Rosen	a0b0c7528d	Somehow migration file is new?	2012-03-06 11:09:09 -06:00
Jonathan Cran	fee0c04b0e	updated to reflect update `2012022901`	2012-03-05 16:43:28 -06:00
David Maloney	84d2b3cb1a	Added ability to specify headers to redirects in http server	2012-02-29 16:38:55 -06:00
HD Moore	e50d27cda8	Tweak the event dispatcher to enable customer events without a category and trigger http request events from the main exploit mixin. Experimental	2012-02-29 12:37:15 -06:00
Jenkins	ad0251e256	Merge branch 'release/20120213000001' into stable Conflicts: modules/auxiliary/scanner/vmware/vmware_http_login.rb	2012-02-16 12:01:50 -06:00
Jenkins	d70596ab44	Merge branch 'release/20120131000001' into stable	2012-02-13 16:27:27 -06:00
Matt Buck	0e4fd2040d	Change Msm -> Mdm in migrations. This is what was preventing migrations from finishing on first boot.	2012-02-02 22:09:05 -06:00
Trevor Rosen	c94a2961d0	Changed Gemfile to use new gem name	2012-02-01 12:48:48 -06:00
Trevor Rosen	245c2063f0	Did find/replace for final namespace of Mdm	2012-02-01 12:47:42 -06:00
Tod Beardsley	77a9b36901	MSFTidy commits Whitespace fixes, grammar fixes, and breaking up a multiline SOAP request. Squashed commit of the following: commit 2dfd2472f7afc1a05d3647c7ace0d031797c03d9 Author: Tod Beardsley <todb@metasploit.com> Date: Wed Feb 1 10:58:53 2012 -0600 Break up the multiline SOAP thing commit 747e62c5be2e6ba99f70c03ecd436fc444fda99e Author: Tod Beardsley <todb@metasploit.com> Date: Wed Feb 1 10:48:16 2012 -0600 More whitespace and indent commit 12c42aa1efdbf633773096418172e60277162e22 Author: Tod Beardsley <todb@metasploit.com> Date: Wed Feb 1 10:39:36 2012 -0600 Whitespace fixes commit 32d57444132fef3306ba2bc42743bfa063e498df Author: Tod Beardsley <todb@metasploit.com> Date: Wed Feb 1 10:35:37 2012 -0600 Grammar fixes for new modules.	2012-02-01 11:05:17 -06:00
Jenkins	060115edf4	Merge branch 'stable' of framework.github.com:rapid7/metasploit-framework into stable	2012-01-31 11:35:21 -06:00
Matt Buck	057a22569b	Merge branch 'release/20120124000001' into stable	2012-01-30 17:48:03 -06:00
Jenkins	f5e520cc53	Merge branch 'release/20120124000001' into stable	2012-01-30 16:17:21 -06:00
Trevor Rosen	6ed9bf8430	Fix a bunch of namespace issues	2012-01-24 10:48:26 -06:00
Matt Buck	2fe08d9e42	Update Msm contstants in migrations for initial DB builds.	2012-01-24 10:27:53 -06:00
Matt Buck	4cc6b8fb04	Update Gemfile.lock.	2012-01-24 10:27:53 -06:00
Trevor Rosen	1cc655b678	Errant Workspaces needed namespace	2012-01-24 10:27:53 -06:00
Trevor Rosen	607a782855	Refactored all models to use the new namespace * Every model using DBManager::* namespace is now Msm namespace * Almost all of this in msf/base/core * Some in modules	2012-01-24 10:27:53 -06:00
Trevor Rosen	a690cd959b	Move bundler setup	2012-01-24 10:25:10 -06:00
Trevor Rosen	dae115cc8f	Moved ActiveSupport dep to gem	2012-01-24 10:25:10 -06:00
Trevor Rosen	d32f8edb6e	Removed model require file	2012-01-24 10:25:09 -06:00
Trevor Rosen	d0c74cff8c	Update some more finds	2012-01-24 10:25:09 -06:00
Trevor Rosen	4eb79ea6b5	Yet another dumb commit	2012-01-24 10:25:09 -06:00
Trevor Rosen	a75febcb59	Fixing deletion	2012-01-24 10:25:09 -06:00
Trevor Rosen	dc139ff2fd	Fixed erroneous commit	2012-01-24 10:22:05 -06:00
Trevor Rosen	531c1e611c	Remove AR patch stuff; attempting to debug non-connection between MSF and Pro	2012-01-24 10:22:05 -06:00
Trevor Rosen	4586112241	Drop ActiveRecord/ActiveSupport in preparation for upgrade	2012-01-24 10:22:05 -06:00
Jonathan Cran	7f9cd45dca	Merge branch 'release/20120110000001' into stable	2012-01-17 11:28:06 -06:00
Jonathan Cran	5700bf9db4	Merge branch 'release/20120110000001' of framework.github.com:rapid7/metasploit-framework into release/20120110000001	2012-01-13 13:48:37 -06:00
Tod Beardsley	b3925c4465	Drop a spurious print_error line from smtp_version	2012-01-13 13:47:58 -06:00
Tod Beardsley	f40df69100	Removing telnet_encrypt_keyid_bruteforce.rb to unstable can't ship for a few problems, will be fixed up soonish but about to release a build.	2012-01-11 14:06:34 -06:00
Tod Beardsley	dd42f241f7	Death to unicode Apologies to the authors whose names I am now intentionally misspelling. Maybe in another 10 years, we can guarantee that all terminals and machine parsers are okay with unicode suddenly popping up in strings. Also adds a check in msftidy for stray unicode.	2012-01-11 14:00:26 -06:00
Jonathan Cran	15065ba627	fixup title	2012-01-11 11:15:15 -06:00
Jonathan Cran	9a37792328	Merge branch 'release/2012011000000' into stable	2012-01-10 09:49:11 -06:00
Jonathan Cran	f52445930e	Merge branch 'release/20120103000001' into stable	2012-01-09 10:12:56 -06:00
Jonathan Cran	fdea0ad9c7	Merge branch 'release/20111227000001' into stable	2012-01-03 11:56:42 -06:00
Jonathan Cran	14270fe49f	Merge branch 'release/20111219000001' into stable	2011-12-27 11:28:41 -06:00
Jonathan Cran	4259168703	Merge branch 'stable' of r7.github.com:rapid7/metasploit-framework into stable	2011-12-16 22:02:28 -06:00
Jenkins	5249e74ca7	Merge branch 'release/20111213184834' into stable	2011-12-13 19:39:52 -06:00
Jenkins	cf0cbff302	Merge branch 'release/20111205000001' into stable	2011-12-13 18:26:13 -06:00