From f66c2238b83ec8c382c12c8c4acf79bd2ecc7a25 Mon Sep 17 00:00:00 2001
From: Tom Lea <contrib@tomlea.co.uk>
Date: Fri, 31 Oct 2008 20:04:47 +0000
Subject: [PATCH] Because the ActionView has no reference to the default_url_options, it must delegate optomised named route url generators to the relevent controller.

We can tell a view from a controller, because a view has a reference to the controller. We exploit this to ensure the correct methods are placed on the correct classes, without breaking the API.
---
 .../lib/action_controller/routing/route_set.rb     |   27 +++++++++++++++++--
 1 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/actionpack/lib/action_controller/routing/route_set.rb b/actionpack/lib/action_controller/routing/route_set.rb
index ff44849..9952617 100644
--- a/actionpack/lib/action_controller/routing/route_set.rb
+++ b/actionpack/lib/action_controller/routing/route_set.rb
@@ -112,14 +112,29 @@ module ActionController
           end
         end
 
-        def install(destinations = [ActionController::Base, ActionView::Base], regenerate = false)
+        def install(destinations = [ActionController::Base], regenerate = false)
           reset! if regenerate
           Array(destinations).each do |dest|
             dest.__send__(:include, @module)
           end
         end
 
+        def install_delegators(destinations = [ActionView::Base], delegation_method = :controller, regenerate = false)
+          reset! if regenerate
+          Array(destinations).each do |dest|
+            dest.__send__(:include, generate_delegation_module(delegation_method))
+          end
+        end
+
         private
+          def generate_delegation_module(to = :controller)
+            returning(Module.new) do |delegator_module|
+              @module.instance_methods.each do |method|
+                delegator_module.module_eval{ delegate method, :to => to }
+              end
+            end
+          end
+
           def url_helper_name(name, kind = :url)
             :"#{name}_#{kind}"
           end
@@ -221,8 +236,14 @@ module ActionController
       end
 
       def install_helpers(destinations = [ActionController::Base, ActionView::Base], regenerate_code = false)
-        Array(destinations).each { |d| d.module_eval { include Helpers } }
-        named_routes.install(destinations, regenerate_code)
+        Array(destinations).each {|d|
+          d.module_eval { include Helpers }
+          if d.instance_methods.include? "controller"
+            named_routes.install_delegators(d, :controller, regenerate_code)
+          else
+            named_routes.install(d, regenerate_code)
+          end
+        }
       end
 
       def empty?
-- 
1.5.5.4