From now on, parameters defined in default_url_options can be absent from named routes.

This allows the following setup to work:

  # app/controllers/application_controller.rb
  class ApplicationController
    def default_url_options(options=nil)
      { :locale => I18n.locale }
    end
  end

  # From your views and controllers:
  I18n.locale                 #=> :en
  users_url                   #=> "/en/users"
  users_url(:pl)              #=> "/pl/users"
  user_url(1)                 #=> "/en/users/1"
  user_url(:pl, 1)            #=> "/pl/users/1"
  user_url(1, :locale => :pl) #=> "/pl/users/1"

If you provide all expected parameters, it still works as previously.
But if any parameter is missing, it tries to assign all possible ones
with the hash returned in default_url_options or the one passed straight
to the named route method.

Beware that default_url_options in ApplicationController is not shared
with ActionMailer, so you are required to always give the locale in your
email views.

1 files changed, 5 insertions, 0 deletions

diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb
index 710178905a..14628c5404 100644
--- a/actionpack/lib/action_view/helpers/url_helper.rb
+++ b/actionpack/lib/action_view/helpers/url_helper.rb
@@ -11,6 +11,11 @@ module ActionView
     module UrlHelper
       include JavaScriptHelper
 
+      # Need to map default url options to controller one.
+      def default_url_options(*args) #:nodoc:
+        @controller.send(:default_url_options, *args)
+      end
+
       # Returns the URL for the set of +options+ provided. This takes the
       # same options as +url_for+ in Action Controller (see the
       # documentation for <tt>ActionController::Base#url_for</tt>). Note that by default