Merge branch 'master' into nested_has_many_through

Conflicts:
	activerecord/lib/active_record/associations/has_many_association.rb
	activerecord/lib/active_record/associations/through_association_scope.rb

4 files changed, 44 insertions, 0 deletions

diff --git a/activerecord/test/cases/associations/belongs_to_associations_test.rb b/activerecord/test/cases/associations/belongs_to_associations_test.rb
index cbaa4990f7..0fa4328826 100644
--- a/activerecord/test/cases/associations/belongs_to_associations_test.rb
+++ b/activerecord/test/cases/associations/belongs_to_associations_test.rb
@@ -81,6 +81,13 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase
     assert_not_nil citibank_result.instance_variable_get("@firm_with_primary_key")
   end
 
+  def test_eager_loading_with_primary_key_as_symbol
+    Firm.create("name" => "Apple")
+    Client.create("name" => "Citibank", :firm_name => "Apple")
+    citibank_result = Client.find(:first, :conditions => {:name => "Citibank"}, :include => :firm_with_primary_key_symbols)
+    assert_not_nil citibank_result.instance_variable_get("@firm_with_primary_key_symbols")
+  end
+
   def test_no_unexpected_aliasing
     first_firm = companies(:first_firm)
     another_firm = companies(:another_firm)
diff --git a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
index 5b24d49a7d..81e99036af 100644
--- a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
+++ b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
@@ -3,6 +3,7 @@ require 'models/post'
 require 'models/comment'
 require 'models/author'
 require 'models/categorization'
+require 'models/category'
 require 'models/company'
 require 'models/topic'
 require 'models/reply'
@@ -45,6 +46,31 @@ class CascadedEagerLoadingTest < ActiveRecord::TestCase
     assert_equal people(:michael), Person.eager_load(:primary_contact => :primary_contact).where('primary_contacts_people_2.first_name = ?', 'Susan').order('people.id').first
   end
 
+  def test_cascaded_eager_association_loading_with_join_for_count
+    categories = Category.joins(:categorizations).includes([{:posts=>:comments}, :authors])
+
+    assert_nothing_raised do
+      assert_equal 2, categories.count
+      assert_equal 2, categories.all.uniq.size # Must uniq since instantiating with inner joins will get dupes
+    end
+  end
+
+  def test_cascaded_eager_association_loading_with_duplicated_includes
+    categories = Category.includes(:categorizations).includes(:categorizations => :author).where("categorizations.id is not null")
+    assert_nothing_raised do
+      assert_equal 2, categories.count
+      assert_equal 2, categories.all.size
+    end
+  end
+
+  def test_cascaded_eager_association_loading_with_twice_includes_edge_cases
+    categories = Category.includes(:categorizations => :author).includes(:categorizations => :post).where("posts.id is not null")
+    assert_nothing_raised do
+      assert_equal 2, categories.count
+      assert_equal 2, categories.all.size
+    end
+  end
+
   def test_eager_association_loading_with_join_for_count
     authors = Author.joins(:special_posts).includes([:posts, :categorizations])
 
diff --git a/activerecord/test/cases/method_scoping_test.rb b/activerecord/test/cases/method_scoping_test.rb
index f3d3d62830..0ffd0e2ab3 100644
--- a/activerecord/test/cases/method_scoping_test.rb
+++ b/activerecord/test/cases/method_scoping_test.rb
@@ -226,6 +226,12 @@ class MethodScopingTest < ActiveRecord::TestCase
     assert Post.find(1).comments.include?(new_comment)
   end
 
+  def test_scoped_create_with_join_and_merge
+    (Comment.where(:body => "but Who's Buying?").joins(:post) & Post.where(:body => 'Peace Sells...')).with_scope do
+      assert_equal({:body => "but Who's Buying?"}, Comment.scoped.scope_for_create)
+    end
+  end
+
   def test_immutable_scope
     options = { :conditions => "name = 'David'" }
     Developer.send(:with_scope, :find => options) do
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index b47ef7592d..268cea27be 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -500,6 +500,11 @@ class RelationTest < ActiveRecord::TestCase
     end
   end
 
+  def test_relation_merging_with_joins
+    comments = Comment.joins(:post).where(:body => 'Thank you for the welcome') & Post.where(:body => 'Such a lovely day')
+    assert_equal 1, comments.count
+  end
+
   def test_count
     posts = Post.scoped