Simplify required "ActionView compliant" API

actionpack/lib/action_controller/abstract/helpers.rb

@@ -8,12 +8,6 @@ module AbstractController
       extlib_inheritable_accessor(:_helpers) { Module.new }
     end
 
-    # Override AbstractController::Renderer's _action_view to include the
-    # helper module for this class into its helpers module.
-    def _action_view
-      @_action_view ||= super.tap { |av| av.helpers.include(_helpers) }
-    end
-
     module ClassMethods
       # When a class is inherited, wrap its helper module in a new module.
       # This ensures that the parent class's module can be changed

actionpack/lib/action_controller/abstract/renderer.rb

@@ -17,25 +17,22 @@ module AbstractController
     # An instance of a view class. The default view class is ActionView::Base
     #
     # The view class must have the following methods:
-    # initialize[paths, assigns_for_first_render, controller]
-    #   paths<Array[ViewPath]>:: A list of resolvers to look for templates in
-    #   controller<AbstractController::Base> A controller
-    # _render_partial_from_controller[options]
+    # View.for_controller[controller] Create a new ActionView instance for a 
+    #   controller
+    # View#_render_partial_from_controller[options]
+    #   - responsible for setting options[:_template]
+    #   - Returns String with the rendered partial
     #   options<Hash>:: see _render_partial in ActionView::Base
-    # _render_template_from_controller[template, layout, options, partial]
+    # View#_render_template_from_controller[template, layout, options, partial]
+    #   - Returns String with the rendered template
     #   template<ActionView::Template>:: The template to render
     #   layout<ActionView::Template>:: The layout to render around the template
     #   options<Hash>:: See _render_template_with_layout in ActionView::Base
     #   partial<Boolean>:: Whether or not the template to render is a partial
-    # _partial:: If a partial, rather than a template, was rendered, return
-    #   the partial.
-    # helpers:: A module containing the helpers to be used in the view. This
-    #   module should respond_to include.
-    # controller:: The controller that initialized the ActionView
     #
     # Override this method in a to change the default behavior.
     def _action_view
-      @_action_view ||= ActionView::Base.new(self.class.view_paths, {}, self)
+      @_action_view ||= ActionView::Base.for_controller(self)
     end
 
     # Mostly abstracts the fact that calling render twice is a DoubleRenderError.

actionpack/lib/action_view/base.rb

@@ -228,6 +228,12 @@ module ActionView #:nodoc:
       end
     end
 
+    def self.for_controller(controller)
+      new(controller.class.view_paths, {}, controller).tap do |view|
+        view.helpers.include(controller._helpers) if controller.respond_to?(:_helpers)
+      end
+    end
+
     def initialize(view_paths = [], assigns_for_first_render = {}, controller = nil, formats = nil)#:nodoc:
       @formats = formats || [:html]
       @assigns = assigns_for_first_render.each { |key, value| instance_variable_set("@#{key}", value) }

actionpack/lib/action_view/render/partials.rb

@@ -259,7 +259,7 @@ module ActionView
           
           _set_locals(object, locals, template, options)
           
-          self._partial = template
+          options[:_template] = template
           
           _render_template(template, locals)
         end
@@ -278,7 +278,7 @@ module ActionView
         locals = (options[:locals] ||= {})
         index, @_partial_path = 0, nil
         collection.map do |object|
-          template = passed_template || begin
+          options[:_template] = template = passed_template || begin
             _partial_path = 
               ActionController::RecordIdentifier.partial_path(object, controller_path)
             template = _pick_partial_template(_partial_path)
@@ -289,8 +289,6 @@ module ActionView
           
           index += 1
           
-          self._partial = template
-          
           _render_template(template, locals)
         end.join(spacer)
       end

actionpack/test/abstract_unit.rb

@@ -97,7 +97,7 @@ module ActionController
           partials = hax[:partials]
           if expected_count = options[:count]
             found = partials.detect { |p, _| p.identifier.match(expected_partial) }
-            actual_count = found.nil? ? 0 : found.second
+            actual_count = found.nil? ? 0 : found[1]
             msg = build_message(message,
                     "expecting ? to be rendered ? time(s) but rendered ? time(s)",
                      expected_partial, expected_count, actual_count)