Merge pull request #5412 from tilsammans/stored_attributes

Added `stored_attributes` hash which contains the attributes stored using
ActiveRecord::Store. This allows you to retrieve the list of attributes
you've defined.

    class User < ActiveRecord::Base
      store :settings, accessors: [:color, :homepage]
    end

    User.stored_attributes[:settings] # [:color, :homepage]

1 files changed, 5 insertions, 1 deletions

diff --git a/activerecord/test/cases/store_test.rb b/activerecord/test/cases/store_test.rb
index 79476ed2a4..e401dd4b12 100644
--- a/activerecord/test/cases/store_test.rb
+++ b/activerecord/test/cases/store_test.rb
@@ -13,7 +13,7 @@ class StoreTest < ActiveRecord::TestCase
     assert_equal 'black', @john.color
     assert_nil @john.homepage
   end
-  
+
   test "writing store attributes through accessors" do
     @john.color = 'red'
     @john.homepage = '37signals.com'
@@ -111,4 +111,8 @@ class StoreTest < ActiveRecord::TestCase
     @john.is_a_good_guy = false
     assert_equal false, @john.is_a_good_guy
   end
+
+  test "stored attributes are returned" do
+    assert_equal [:color, :homepage], Admin::User.stored_attributes[:settings]
+  end
 end