2 files changed, 26 insertions, 0 deletions
diff --git a/actionpack/lib/abstract_controller/base.rb b/actionpack/lib/abstract_controller/base.rb
index 8a8337858b..db0a6736e0 100644
--- a/actionpack/lib/abstract_controller/base.rb
+++ b/actionpack/lib/abstract_controller/base.rb
@@ -72,6 +72,13 @@ module AbstractController
         end
       end
 
+      # action_methods are cached and there is sometimes need to refresh
+      # them. clear_action_methods! allows you to do that, so next time
+      # you run action_methods, they will be recalculated
+      def clear_action_methods!
+        @action_methods = nil
+      end
+
       # Returns the full controller name, underscored, without the ending Controller.
       # For instance, MyApp::MyPostsController would return "my_app/my_posts" for
       # controller_name.
@@ -81,6 +88,11 @@ module AbstractController
       def controller_path
         @controller_path ||= name.sub(/Controller$/, '').underscore unless anonymous?
       end
+
+      def method_added(name)
+        super
+        clear_action_methods!
+      end
     end
 
     abstract!
diff --git a/actionpack/test/abstract/abstract_controller_test.rb b/actionpack/test/abstract/abstract_controller_test.rb
index 3b5013a47a..19855490b4 100644
--- a/actionpack/test/abstract/abstract_controller_test.rb
+++ b/actionpack/test/abstract/abstract_controller_test.rb
@@ -250,5 +250,19 @@ module AbstractController
       end
     end
 
+    class Me6 < AbstractController::Base
+      self.action_methods
+
+      def index
+      end
+    end
+
+    class TestActionMethodsReloading < ActiveSupport::TestCase
+
+      test "action_methods should be reloaded after defining a new method" do
+        assert_equal ["index"], Me6.action_methods
+      end
+    end
+
   end
 end