Use before_filter define in main_app inside engine

Question

I have a before filter that I currently use inside my main_app call "action" and I normally call it by saying

before_filter :action

Right now I have an engine that I need to use that same filter, but if I use that exact method I get the following error:

undefined method `action' (for Engine bla bla..) 

For other cases I just added main_app upfront and that solved the issue. Not the case. Any help?

UPDATE Right now i have this:

module MyEngine
  class MyEngineController < ApplicationController

    before_filter :main_app do
      :action
    end

Answer 1

can you do something like

class MyController < EngineController
    skip_before_filter :authorize, :only => [:setup]

    def setup
        super
    end
end