You can now add an :inverse_of option to has_one, has_many and belongs_to associations. This is best described with an example:
class Man < ActiveRecord::Base
has_one :face, :inverse_of => :man
end
class Face < ActiveRecord::Base
belongs_to :man, :inverse_of => :face
end
m = Man.first
f = m.face
Without :inverse_of m and f.man would be different instances of the same object (f.man being pulled from the database again). With these new :inverse_of options m and f.man are the same in memory instance.
Currently :inverse_of supports has_one and has_many (but not the :through variants) associations. It also supplies inverse support for belongs_to associations where the inverse is a has_one and it's not a polymorphic.
Signed-off-by: Murray Steele <muz@h-lame.com>
Signed-off-by: Michael Koziarski <michael@koziarski.com>
Signed-off-by: José Valim <jose.valim@gmail.com>
Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>
Conflicts:
activerecord/lib/active_record/associations/belongs_to_association.rb
activerecord/lib/active_record/associations/has_one_association.rb
commit e6afd8b273
Author: Xavier Noria <fxn@hashref.com>
Date: Thu May 8 23:49:36 2008 +0200
Overall documentation improvement and markup corrections. Zillion changes.
commit 2fead68b31
Author: Austin Putman <austin@emmanuel.local>
Date: Wed May 7 19:35:46 2008 -0700
Documented class methods on ActionController::Routing. These are dangerous, and mostly used for testing.
commit f5b84182db
Author: Teflon Ted <github@rudiment.net>
Date: Wed May 7 16:08:49 2008 -0400
Added explanation about errant inflections not being patched in the future in order to avoid breaking legacy applications.
commit 370f4f5172
Author: Sunny Ripert <negatif@gmail.com>
Date: Wed May 7 14:00:59 2008 +0200
Applied list conventions in AR::Base
commit 5bd18429f0
Author: Sunny Ripert <negatif@gmail.com>
Date: Wed May 7 13:53:35 2008 +0200
Renamed Options list to Attributes list whenever they weren't option hashes in AR::Base
commit d912bd5672
Author: Yaroslav Markin <yaroslav@markin.net>
Date: Wed May 7 13:50:28 2008 +0400
Add a filter_parameter_logging usage hint to generated ApplicationController.
This may help to remind the developer to filter sensitive information from application logs.
Closes#11578
commit b243de0db3
Author: Jack Danger Canty <git@6brand.com>
Date: Tue May 6 23:39:47 2008 -0700
doc: disambiguating an example ActiveRecord class
commit f81d771f06
Author: Jack Danger Canty <git@6brand.com>
Date: Tue May 6 23:35:05 2008 -0700
doc: ActiveRecord::Reflection::AssociationReflection#through_reflection
Added documentation demonstrating the use of #through_reflection for
finding intervening reflection objects for HasManyThrough
and HasOneThrough.
commit ae6b46f00b
Author: Cheah Chu Yeow <chuyeow@gmail.com>
Date: Wed May 7 13:47:41 2008 +0800
Document AttributeAssignmentError and MultiparameterAssignmentErrors.
commit 8f463550b5
Author: John Barnette <jbarnette@gmail.com>
Date: Tue May 6 22:46:44 2008 -0700
Killing/fixing a bunch of outdated language in the AR README.
commit aca44bcd92
Author: Cheah Chu Yeow <chuyeow@gmail.com>
Date: Wed May 7 13:34:52 2008 +0800
Make a note about ActiveResource::Timeouterror being raised when ARes calls timeout.
commit 284a930a93
Author: Jonathan Dance <jd@wuputah.com>
Date: Tue May 6 14:58:26 2008 -0400
improvements to the page caching docs
commit 9482da6213
Author: Sunny Ripert <negatif@gmail.com>
Date: Mon May 5 18:13:40 2008 +0200
validates_numericality_of() "integer" option really is "only_integer"
commit e9afd6790a
Author: Sunny Ripert <negatif@gmail.com>
Date: Mon May 5 12:11:59 2008 +0200
Harmonized hash notation in AR::Base
commit 67ebf14a91
Author: Sunny Ripert <negatif@gmail.com>
Date: Mon May 5 12:06:19 2008 +0200
Turned options into rdoc-lists in AR::Base
commit 0ec7c0a41d
Author: Marshall Huss <mwhuss@Macbook.local>
Date: Sun May 4 23:21:33 2008 -0400
Added information of how to set element_name in the case the user has a name confliction with an existing model
Signed-off-by: Pratik Naik <pratiknaik@gmail.com>
Split association reflection test into has_many and has_one tests. TODO: extend to belongs_to and habtm as well. Kill trailing whitespace.
r2980@asus: jeremy | 2005-07-10 01:53:41 -0700
Test that eager load of firm.account (a has_one) returns the correct account. This doesn't cover the regression in Ticket #1688, however. Need a case where class name is not provided and the singular name is over-singularized by active_record.class_name. Kill trailing whitespace.
r2981@asus: jeremy | 2005-07-10 01:56:44 -0700
Fix class name resolution in AssociationReflection#name_to_class_name. Use the equivalent of the idiomatic ||= (read or write if nil) for the class_inheritable_attribute reflection arrays. Kill trailing whitespace.
r2982@asus: jeremy | 2005-07-10 01:59:08 -0700
Remove superfluous assignment in compute_type. In an inject, the return value is used for the next injection, so assigning to the injected value is unnecessary.
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1790 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
