Respect the :primary_key option on the through_reflection of (non-nested) through associations

6 files changed, 57 insertions, 3 deletions

diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb
index 4b9f49f1ec..5a2e6b26aa 100644
--- a/activerecord/test/cases/associations/has_many_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb
@@ -17,11 +17,14 @@ require 'models/developer'
 require 'models/subscriber'
 require 'models/book'
 require 'models/subscription'
+require 'models/essay'
+require 'models/category'
 
 class HasManyThroughAssociationsTest < ActiveRecord::TestCase
   fixtures :posts, :readers, :people, :comments, :authors,
            :owners, :pets, :toys, :jobs, :references, :companies,
-           :subscribers, :books, :subscriptions, :developers
+           :subscribers, :books, :subscriptions, :developers,
+           :essays, :categories
 
   # Dummies to force column loads so query counts are clean.
   def setup
@@ -449,4 +452,18 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
     comment = post.comments.build
     assert author.comments.include?(comment)
   end
+
+  def test_has_many_through_polymorphic_with_primary_key_option_on_through_reflection
+    assert_equal [categories(:general)], authors(:david).essay_categories
+    
+    authors = Author.joins(:essay_categories).where('categories.id' => categories(:general).id)
+    assert_equal authors(:david), authors.first
+  end
+  
+  def test_has_many_through_with_primary_key_option_on_through_reflection
+    assert_equal [categories(:general)], authors(:david).essay_categories_2
+    
+    authors = Author.joins(:essay_categories_2).where('categories.id' => categories(:general).id)
+    assert_equal authors(:david), authors.first
+  end
 end
diff --git a/activerecord/test/cases/associations/has_one_through_associations_test.rb b/activerecord/test/cases/associations/has_one_through_associations_test.rb
index 5d153147f5..8805968869 100644
--- a/activerecord/test/cases/associations/has_one_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_through_associations_test.rb
@@ -9,9 +9,13 @@ require 'models/member_detail'
 require 'models/minivan'
 require 'models/dashboard'
 require 'models/speedometer'
+require 'models/category'
+require 'models/author'
+require 'models/essay'
 
 class HasOneThroughAssociationsTest < ActiveRecord::TestCase
-  fixtures :member_types, :members, :clubs, :memberships, :sponsors, :organizations, :minivans, :dashboards, :speedometers
+  fixtures :member_types, :members, :clubs, :memberships, :sponsors, :organizations, :minivans,
+           :dashboards, :speedometers, :categories, :authors, :essays
 
   def setup
     @member = members(:groucho)
@@ -212,4 +216,18 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
       minivan.dashboard
     end
   end
+  
+  def test_has_one_through_polymorphic_with_primary_key_option_on_through_reflection
+    assert_equal categories(:general), authors(:david).essay_category
+    
+    authors = Author.joins(:essay_category).where('categories.id' => categories(:general).id)
+    assert_equal authors(:david), authors.first
+  end
+  
+  def test_has_one_through_with_primary_key_option_on_through_reflection
+    assert_equal categories(:general), authors(:david).essay_category_2
+    
+    authors = Author.joins(:essay_category_2).where('categories.id' => categories(:general).id)
+    assert_equal authors(:david), authors.first
+  end
 end
diff --git a/activerecord/test/fixtures/essays.yml b/activerecord/test/fixtures/essays.yml
new file mode 100644
index 0000000000..8c96a469e6
--- /dev/null
+++ b/activerecord/test/fixtures/essays.yml
@@ -0,0 +1,6 @@
+david_modest_proposal:
+  name: A Modest Proposal
+  writer_type: Author
+  writer_id: David
+  category_id: 1
+  author_id: David
diff --git a/activerecord/test/models/author.rb b/activerecord/test/models/author.rb
index c0e082836d..1ba01d6b6b 100644
--- a/activerecord/test/models/author.rb
+++ b/activerecord/test/models/author.rb
@@ -95,8 +95,18 @@ class Author < ActiveRecord::Base
   has_many :subscriptions,        :through => :books
   has_many :subscribers,          :through => :subscriptions, :order => "subscribers.nick" # through has_many :through (on through reflection)
   has_many :distinct_subscribers, :through => :subscriptions, :source => :subscriber, :select => "DISTINCT subscribers.*", :order => "subscribers.nick"
-
+  
   has_one :essay, :primary_key => :name, :as => :writer
+  has_one :essay_category, :through => :essay, :source => :category
+
+  has_one :essay_2, :primary_key => :name, :class_name => 'Essay', :foreign_key => :author_id
+  has_one :essay_category_2, :through => :essay_2, :source => :category
+
+  has_many :essays, :primary_key => :name, :as => :writer
+  has_many :essay_categories, :through => :essays, :source => :category
+  
+  has_many :essays_2, :primary_key => :name, :class_name => 'Essay', :foreign_key => :author_id
+  has_many :essay_categories_2, :through => :essays_2, :source => :category
 
   belongs_to :author_address,       :dependent => :destroy
   belongs_to :author_address_extra, :dependent => :delete, :class_name => "AuthorAddress"
diff --git a/activerecord/test/models/essay.rb b/activerecord/test/models/essay.rb
index 6c28f5e49b..6a62042863 100644
--- a/activerecord/test/models/essay.rb
+++ b/activerecord/test/models/essay.rb
@@ -1,3 +1,4 @@
 class Essay < ActiveRecord::Base
   belongs_to :writer, :primary_key => :name, :polymorphic => true
+  belongs_to :category
 end
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index ee129162a6..b5bf9a7349 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -214,6 +214,8 @@ ActiveRecord::Schema.define do
     t.string :name
     t.string :writer_id
     t.string :writer_type
+    t.integer :category_id
+    t.integer :author_id
   end
 
   create_table :events, :force => true do |t|