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Fix #count on a has_many :through association so that it recognizes the :uniq option.  Closes #8801 [lifofifo]

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 Make create! on a has_many :through association return the association object.  Not the collection.  Closes #8786 [lifofifo]


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Improve Performance of calling create on has_many :through associations by avoiding loading the target collection. Closes #8150 [evan]

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Pushing a record on an association collection doesn't unnecessarily load all the associated records.

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Consolidated different create and create! versions to call through to the base class with scope. This fixes inconsistencies, especially related to protected attribtues.


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Add AssociationCollection#create! to be consistent with AssociationCollection#create when dealing with a foreign key that is a protected attribute


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Added counter optimization for AssociationCollection#any? so person.friends.any? won't actually load the full association if we have the count in a cheaper form [DHH]

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Simplify association proxy implementation by factoring construct_scope out of method_missing. Closes #6643.

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Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. [Jonathan Viney]  (sorry, forgot to commit the actual files)

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Removes the ability for eager loaded conditions to be interpolated, since there is no model instance to use as a context for interpolation. #5553 [turnip@turnipspatch.com]

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Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. Closes #6287.

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Deprecation tests. Remove warnings for dynamic finders and for the foo_count ethod if it's also an attribute.

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Backed out of new_record? to new? transformation as it would screw up existing models that did boolean calls on "new" attributes [DHH]

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Deprecated ActiveRecord::Base.new_record? in favor of ActiveRecord::Base.new? (old version still works until Rails 2.0) [DHH]

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Pushing a record onto a has_many :through sets the association's foreign key to the associate's primary key and adds it to the correct association. Closes #5829.

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Pushing a record onto a has_many :through sets the association's foreign key to the associate's primary key. Closes #5815.

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Add records to has_many :through using <<, push, and concat by creating the association record. Raise if base or associate are new records since both ids are required to create the association. #build raises since you can't associate an unsaved record. #create! takes an attributes hash and creates the associated record and its association in a transaction.

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