module AbstractController::Railties::RoutesHelpers

def self.with(routes, include_path_helpers = true)
  Module.new do
    define_method(:inherited) do |klass|
      super(klass)
      namespace = klass.module_parents.detect { |m| m.respond_to?(:railtie_routes_url_helpers) }
      actual_routes = namespace ? namespace.railtie_routes_url_helpers._routes : routes
      if namespace
        klass.include(namespace.railtie_routes_url_helpers(include_path_helpers))
      else
        klass.include(routes.url_helpers(include_path_helpers))
      end
      # In the case that we have ex.
      #   class A::Foo < ApplicationController
      #   class Bar < A::Foo
      # We will need to redefine _routes because it will not be correct
      # via inheritance.
      unless klass._routes.equal?(actual_routes)
        klass.redefine_singleton_method(:_routes) { actual_routes }
        klass.include(Module.new do
          define_method(:_routes) { @_routes || actual_routes }
        end)
      end
    end
  end
end