ActionController::UrlFor

# Action Controller UrlFor

Includes `url_for` into the host class. The class has to provide a `RouteSet` by implementing the `_routes` method. Otherwise, an exception will be raised.

In addition to AbstractController::UrlFor, this module accesses the HTTP layer to define URL options like the `host`. In order to do so, this module requires the host class to implement `env` which needs to be Rack-compatible, and `request` which returns an ActionDispatch::Request instance.

class RootUrl
  include ActionController::UrlFor
  include Rails.application.routes.url_helpers

  delegate :env, :request, to: :controller

  def initialize(controller)
    @controller = controller
    @url        = root_path # named route from the application.
  end
end