4 files changed, 36 insertions, 15 deletions
diff --git a/actionpack/lib/abstract_controller.rb b/actionpack/lib/abstract_controller.rb
index f8fc79936f..cc5878c88e 100644
--- a/actionpack/lib/abstract_controller.rb
+++ b/actionpack/lib/abstract_controller.rb
@@ -24,4 +24,5 @@ module AbstractController
   autoload :Translation
   autoload :AssetPaths
   autoload :ViewPaths
+  autoload :UrlFor
 end
diff --git a/actionpack/lib/abstract_controller/url_for.rb b/actionpack/lib/abstract_controller/url_for.rb
new file mode 100644
index 0000000000..2e9de22ecd
--- /dev/null
+++ b/actionpack/lib/abstract_controller/url_for.rb
@@ -0,0 +1,28 @@
+module AbstractController
+  module UrlFor
+    extend ActiveSupport::Concern
+
+    include ActionDispatch::Routing::UrlFor
+
+    def _routes
+      raise "In order to use #url_for, you must include routing helpers explicitly. " \
+            "For instance, `include Rails.application.routes.url_helpers"
+    end
+
+    module ClassMethods
+      def _routes
+        nil
+      end
+
+      def action_methods
+        @action_methods ||= begin
+          if _routes
+            super - _routes.named_routes.helper_names
+          else
+            super
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/actionpack/lib/action_controller/metal/url_for.rb b/actionpack/lib/action_controller/metal/url_for.rb
index 1e34f21c77..85c6b0a9b5 100644
--- a/actionpack/lib/action_controller/metal/url_for.rb
+++ b/actionpack/lib/action_controller/metal/url_for.rb
@@ -2,7 +2,7 @@ module ActionController
   module UrlFor
     extend ActiveSupport::Concern
 
-    include ActionDispatch::Routing::UrlFor
+    include AbstractController::UrlFor
 
     def url_options
       options = {}
@@ -16,18 +16,5 @@ module ActionController
         :_path_segments => request.symbolized_path_parameters
       )
     end
-
-    def _routes
-      raise "In order to use #url_for, you must include routing helpers explicitly. " \
-            "For instance, `include Rails.application.routes.url_helpers"
-    end
-
-    module ClassMethods
-      def action_methods
-        @action_methods ||= begin
-          super - _routes.named_routes.helper_names
-        end
-      end
-    end
   end
 end
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index 6e7e133cc5..219fa37fcb 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -337,7 +337,12 @@ module ActionDispatch
             # Yes plz - JP
             included do
               routes.install_helpers(self)
-              singleton_class.send(:define_method, :_routes) { @_routes || routes }
+              singleton_class.send(:define_method, :_routes) { routes }
+            end
+
+            def initialize(*)
+              @_routes = nil
+              super
             end
 
             define_method(:_routes) { @_routes || routes }