# module ActiveMetadata
#   ## Define ControllerMethods
#   module Controller
#     ## this one manages the usual self.included, klass_eval stuff
#     extend ActiveSupport::Concern
# 
#     included do
#       before_filter :test_controller_instance_method
#     end
# 
#     module InstanceMethods
#       def test_controller_instance_method
#         puts "###### This text is coming from an application_controller before_filter that is being declared and triggered from inside the engine. This before_filter is automatically integrated in when the engine is installed into an app. Look inside lib/application_controller.rb to find it. ######"
#       end
# 
#       # This method is available inside application_controller but it is not being
#       # automatically executed. Notice the before_filter line above that is automatically
#       # executing the first method.
#       def second_controller_instance_method
#         puts "###### This method is not automatically run inside application_controller, but it is available inside application_controller. To see this example add 'before_filter :second_controller_instance_method' at the top of your app's application_controller.rb ######"
#       end
#     end
#   end
# end
# 
# ::ActionController::Base.send :include, ActiveMetadata::Controller
# 
#