Merge branch 'master' into nested_has_many_through

Conflicts:
	activerecord/CHANGELOG
	activerecord/lib/active_record/association_preload.rb
	activerecord/lib/active_record/associations.rb
	activerecord/lib/active_record/associations/class_methods/join_dependency.rb
	activerecord/lib/active_record/associations/class_methods/join_dependency/join_association.rb
	activerecord/lib/active_record/associations/has_many_association.rb
	activerecord/lib/active_record/associations/has_many_through_association.rb
	activerecord/lib/active_record/associations/has_one_association.rb
	activerecord/lib/active_record/associations/has_one_through_association.rb
	activerecord/lib/active_record/associations/through_association_scope.rb
	activerecord/lib/active_record/reflection.rb
	activerecord/test/cases/associations/has_many_through_associations_test.rb
	activerecord/test/cases/associations/has_one_through_associations_test.rb
	activerecord/test/cases/reflection_test.rb
	activerecord/test/cases/relations_test.rb
	activerecord/test/fixtures/memberships.yml
	activerecord/test/models/categorization.rb
	activerecord/test/models/category.rb
	activerecord/test/models/member.rb
	activerecord/test/models/reference.rb
	activerecord/test/models/tagging.rb

1 files changed, 0 insertions, 80 deletions

diff --git a/activerecord/lib/active_record/associations/class_methods/join_dependency/join_part.rb b/activerecord/lib/active_record/associations/class_methods/join_dependency/join_part.rb
deleted file mode 100644
index cd16ae5a8b..0000000000
--- a/activerecord/lib/active_record/associations/class_methods/join_dependency/join_part.rb
+++ /dev/null
@@ -1,80 +0,0 @@
-module ActiveRecord
-  module Associations
-    module ClassMethods
-      class JoinDependency # :nodoc:
-        # A JoinPart represents a part of a JoinDependency. It is an abstract class, inherited
-        # by JoinBase and JoinAssociation. A JoinBase represents the Active Record which
-        # everything else is being joined onto. A JoinAssociation represents an association which
-        # is joining to the base. A JoinAssociation may result in more than one actual join
-        # operations (for example a has_and_belongs_to_many JoinAssociation would result in
-        # two; one for the join table and one for the target table).
-        class JoinPart # :nodoc:
-          # The Active Record class which this join part is associated 'about'; for a JoinBase
-          # this is the actual base model, for a JoinAssociation this is the target model of the
-          # association.
-          attr_reader :active_record
-
-          delegate :table_name, :column_names, :primary_key, :reflections, :arel_engine, :to => :active_record
-
-          def initialize(active_record)
-            @active_record = active_record
-            @cached_record = {}
-            @column_names_with_alias = nil
-          end
-
-          def aliased_table
-            Arel::Nodes::TableAlias.new aliased_table_name, table
-          end
-
-          def ==(other)
-            raise NotImplementedError
-          end
-
-          # An Arel::Table for the active_record
-          def table
-            raise NotImplementedError
-          end
-
-          # The prefix to be used when aliasing columns in the active_record's table
-          def aliased_prefix
-            raise NotImplementedError
-          end
-
-          # The alias for the active_record's table
-          def aliased_table_name
-            raise NotImplementedError
-          end
-
-          # The alias for the primary key of the active_record's table
-          def aliased_primary_key
-            "#{aliased_prefix}_r0"
-          end
-
-          # An array of [column_name, alias] pairs for the table
-          def column_names_with_alias
-            unless @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)
-            Hash[column_names_with_alias.map{|cn, an| [cn, row[an]]}]
-          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
-      end
-    end
-  end
-end