module ActionDispatch::Routing::Mapper::Resources

def set_member_mappings_for_resource # :doc:
  member do
    get :edit if parent_resource.actions.include?(:edit)
    get :show if parent_resource.actions.include?(:show)
    if parent_resource.actions.include?(:update)
      patch :update
      put   :update
    end
    delete :destroy if parent_resource.actions.include?(:destroy)
  end
end