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

Included Modules

AbstractController::UrlFor

Class Public methods

new(...)

📝 Source code

# File actionpack/lib/action_controller/metal/url_for.rb, line 30
    def initialize(...)
      super
      @_url_options = nil
    end

🔎 See on GitHub

Instance Public methods

url_options()

📝 Source code

# File actionpack/lib/action_controller/metal/url_for.rb, line 35
    def url_options
      @_url_options ||= {
        host: request.host,
        port: request.optional_port,
        protocol: request.protocol,
        _recall: request.path_parameters
      }.merge!(super).freeze

      if (same_origin = _routes.equal?(request.routes)) ||
         (script_name = request.engine_script_name(_routes)) ||
         (original_script_name = request.original_script_name)

        options = @_url_options.dup
        if original_script_name
          options[:original_script_name] = original_script_name
        else
          if same_origin
            options[:script_name] = request.script_name.empty? ? "" : request.script_name.dup
          else
            options[:script_name] = script_name
          end
        end
        options.freeze
      else
        @_url_options
      end
    end

🔎 See on GitHub