aboutsummaryrefslogblamecommitdiffstats
path: root/actionpack/lib/action_controller/metal/url_for.rb
blob: 1177a703b33814e03a1e12f0c63dbc5d8a114d41 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
                                                                                               
                                                                      
 
                                                                                                   
                                                                                     
                                                                       





                                                  
 





                                                                   
       
 



                                 
                                      
 
                   





                                                             
 



                                                         
           

                     
         
       
     
   
# Includes +url_for+ into the host class. The class has to provide a +RouteSet+ by implementing
# the <tt>_routes</tt> method. Otherwise, an exception will be raised.
#
# In addition to <tt>AbstractController::UrlFor</tt>, 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+ and +request+, which need to be a Rack-compatible.
#
# Example:
#
#   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
#
module ActionController
  module UrlFor
    extend ActiveSupport::Concern

    include AbstractController::UrlFor

    def url_options
      @_url_options ||= super.reverse_merge(
        :host => request.host,
        :port => request.optional_port,
        :protocol => request.protocol,
        :_path_segments => request.symbolized_path_parameters
      ).freeze

      if _routes.equal?(env["action_dispatch.routes"])
        @_url_options.dup.tap do |options|
          options[:script_name] = request.script_name.dup
          options.freeze
        end
      else
        @_url_options
      end
    end
  end
end