Work-in progress for providing better join model support and polymorphic associations

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3209 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

8 files changed, 52 insertions, 1 deletions

diff --git a/activerecord/test/aaa_create_tables_test.rb b/activerecord/test/aaa_create_tables_test.rb
index d49e62561f..eb40913930 100644
--- a/activerecord/test/aaa_create_tables_test.rb
+++ b/activerecord/test/aaa_create_tables_test.rb
@@ -10,6 +10,11 @@ class CreateTablesTest < Test::Unit::TestCase
     recreate ActiveRecord::Base
     assert true
   end
+
+  def test_load_schema
+    eval(File.read("#{File.dirname(__FILE__)}/fixtures/db_definitions/schema.rb"))
+    assert true
+  end
   
   def test_drop_and_create_courses_table
     recreate Course, '2'
diff --git a/activerecord/test/associations_interface_test.rb b/activerecord/test/associations_interface_test.rb
new file mode 100644
index 0000000000..5f9447294a
--- /dev/null
+++ b/activerecord/test/associations_interface_test.rb
@@ -0,0 +1,17 @@
+require 'abstract_unit'
+require 'fixtures/tag'
+require 'fixtures/tagging'
+require 'fixtures/post'
+require 'fixtures/comment'
+
+class AssociationsInterfaceTest < Test::Unit::TestCase
+  fixtures :posts, :comments, :tags, :taggings
+
+  def test_post_having_a_single_tag_through_has_many
+    assert_equal taggings(:welcome_general), posts(:welcome).taggings.first
+  end
+
+  def test_post_having_a_single_tag_through_belongs_to
+    assert_equal posts(:welcome), posts(:welcome).taggings.first.taggable
+  end
+end
diff --git a/activerecord/test/fixtures/db_definitions/schema.rb b/activerecord/test/fixtures/db_definitions/schema.rb
new file mode 100644
index 0000000000..b839edbac0
--- /dev/null
+++ b/activerecord/test/fixtures/db_definitions/schema.rb
@@ -0,0 +1,13 @@
+ActiveRecord::Schema.define do
+
+  create_table "taggings", :force => true do |t|
+    t.column "tag_id", :integer
+    t.column "taggable_type", :string
+    t.column "taggable_id", :integer
+  end
+
+  create_table "tags", :force => true do |t|
+    t.column "name", :string
+  end
+
+end
\ No newline at end of file
diff --git a/activerecord/test/fixtures/post.rb b/activerecord/test/fixtures/post.rb
index bf44d8a0a5..61249c43e0 100644
--- a/activerecord/test/fixtures/post.rb
+++ b/activerecord/test/fixtures/post.rb
@@ -19,7 +19,9 @@ class Post < ActiveRecord::Base
 
   has_and_belongs_to_many :categories
   has_and_belongs_to_many :special_categories, :join_table => "categories_posts"
-  
+
+  has_many :taggings, :as => :taggable
+
   def self.what_are_you
     'a post...'
   end
diff --git a/activerecord/test/fixtures/tag.rb b/activerecord/test/fixtures/tag.rb
new file mode 100644
index 0000000000..bfd81c69f7
--- /dev/null
+++ b/activerecord/test/fixtures/tag.rb
@@ -0,0 +1,2 @@
+class Tag < ActiveRecord::Base
+end
\ No newline at end of file
diff --git a/activerecord/test/fixtures/tagging.rb b/activerecord/test/fixtures/tagging.rb
new file mode 100644
index 0000000000..06d0144b5a
--- /dev/null
+++ b/activerecord/test/fixtures/tagging.rb
@@ -0,0 +1,4 @@
+class Tagging < ActiveRecord::Base
+  belongs_to :tag
+  belongs_to :taggable, :polymorphic => true
+end
\ No newline at end of file
diff --git a/activerecord/test/fixtures/taggings.yml b/activerecord/test/fixtures/taggings.yml
new file mode 100644
index 0000000000..ca171346f1
--- /dev/null
+++ b/activerecord/test/fixtures/taggings.yml
@@ -0,0 +1,5 @@
+welcome_general:
+  id: 1
+  tag_id: 1
+  taggable_id: 1
+  taggable_type: Post
diff --git a/activerecord/test/fixtures/tags.yml b/activerecord/test/fixtures/tags.yml
new file mode 100644
index 0000000000..2a494089ff
--- /dev/null
+++ b/activerecord/test/fixtures/tags.yml
@@ -0,0 +1,3 @@
+general:
+  id: 1
+  name: General
\ No newline at end of file