Move prefixes to view paths as they are now a lookup context dependency.

actionpack/lib/abstract_controller/helpers.rb

@@ -4,8 +4,6 @@ module AbstractController
   module Helpers
     extend ActiveSupport::Concern
 
-    include Rendering
-
     included do
       class_attribute :_helpers
       self._helpers = Module.new

actionpack/lib/abstract_controller/rendering.rb

@@ -62,20 +62,6 @@ module AbstractController
           end
         end
       end
-
-      def parent_prefixes
-        @parent_prefixes ||= begin
-          parent_controller = superclass
-          prefixes = []
-
-          until parent_controller.abstract?
-            prefixes << parent_controller.controller_path
-            parent_controller = parent_controller.superclass
-          end
-
-          prefixes
-        end
-      end
     end
 
     attr_writer :view_context_class
@@ -135,13 +121,6 @@ module AbstractController
       view_renderer.render(view_context, options)
     end
 
-    # The prefixes used in render "foo" shortcuts.
-    def _prefixes
-      @_prefixes ||= begin
-        parent_prefixes = self.class.parent_prefixes
-        parent_prefixes.dup.unshift(controller_path)
-      end
-    end
 
     private
 

actionpack/lib/abstract_controller/view_paths.rb

@@ -11,6 +11,30 @@ module AbstractController
     delegate :find_template, :template_exists?, :view_paths, :formats, :formats=,
              :locale, :locale=, :to => :lookup_context
 
+    module ClassMethods
+      def parent_prefixes
+        @parent_prefixes ||= begin
+          parent_controller = superclass
+          prefixes = []
+
+          until parent_controller.abstract?
+            prefixes << parent_controller.controller_path
+            parent_controller = parent_controller.superclass
+          end
+
+          prefixes
+        end
+      end
+    end
+
+    # The prefixes used in render "foo" shortcuts.
+    def _prefixes
+      @_prefixes ||= begin
+        parent_prefixes = self.class.parent_prefixes
+        parent_prefixes.dup.unshift(controller_path)
+      end
+    end
+
     # LookupContext is the object responsible to hold all information required to lookup
     # templates, i.e. view paths and details. Check ActionView::LookupContext for more
     # information.

actionpack/lib/action_view/test_case.rb

@@ -1,4 +1,5 @@
 require 'active_support/core_ext/object/blank'
+require 'active_support/core_ext/module/delegation'
 require 'action_controller'
 require 'action_controller/test_case'
 require 'action_view'
@@ -43,6 +44,7 @@ module ActionView
       include AbstractController::Helpers
       include ActionView::Helpers
 
+      delegate :lookup_context, :to => :controller
       attr_accessor :controller, :output_buffer, :rendered
 
       module ClassMethods

actionpack/test/template/test_case_test.rb

@@ -73,6 +73,10 @@ module ActionView
       view.request.flash.expects(:alert).with("this message")
       view.alert("this message")
     end
+
+    test "uses controller lookup context" do
+      assert_equal self.lookup_context, @controller.lookup_context
+    end
   end
 
   class ClassMethodsTest < ActionView::TestCase