Get Parent Resource in Rails Router

routes.rb

  root :to => 'application#index'    
  resources :attractions, :shopping, :accomodations, :restaurants, :events do 
      collection do
        get 'type' => "#{parent_resource.collection_scope}#index"
      end
      member do
        get 'type' => "#{parent_resource.member_scope}#show"
      end
 
  end