Ensure helpers work from configured path.

2 files changed, 11 insertions, 9 deletions

diff --git a/actionpack/lib/action_controller/base.rb b/actionpack/lib/action_controller/base.rb
index f46231d72b..215b70734c 100644
--- a/actionpack/lib/action_controller/base.rb
+++ b/actionpack/lib/action_controller/base.rb
@@ -7,7 +7,6 @@ module ActionController
     include AbstractController::Translation
 
     include ActionController::Helpers
-    helper :all # By default, all helpers should be included
     
     include ActionController::HideActions
     include ActionController::UrlFor
@@ -67,6 +66,7 @@ module ActionController
     def self.inherited(klass)
       ::ActionController::Base.subclasses << klass.to_s
       super
+      klass.helper :all
     end
 
     def self.subclasses
diff --git a/actionpack/lib/action_controller/metal/helpers.rb b/actionpack/lib/action_controller/metal/helpers.rb
index 24f8cb8a57..757ce3c319 100644
--- a/actionpack/lib/action_controller/metal/helpers.rb
+++ b/actionpack/lib/action_controller/metal/helpers.rb
@@ -50,11 +50,8 @@ module ActionController
     include AbstractController::Helpers
 
     included do
-      # Set the default directory for helpers
-      # TODO This should support multiple directories in order
-      # to work with engines
-      extlib_inheritable_accessor(:helpers_dir) do
-        defined?(Rails.root) ? "#{Rails.root}/app/helpers" : "app/helpers"
+      extlib_inheritable_accessor(:helpers_path) do
+        defined?(Rails::Application) ? Rails::Application.paths.app.helpers.to_a : []
       end
     end
 
@@ -107,10 +104,15 @@ module ActionController
         raise e unless e.missing_name? "#{module_name}Helper"
       end
 
-      # Extract helper names from files in app/helpers/**/*.rb
+      # Extract helper names from files in app/helpers/**/*_helper.rb
       def all_application_helpers
-        extract = /^#{Regexp.quote(helpers_dir)}\/?(.*)_helper.rb$/
-        Dir["#{helpers_dir}/**/*_helper.rb"].map { |file| file.sub extract, '\1' }
+        helpers = []
+        helpers_path.each do |path|
+          extract  = /^#{Regexp.quote(path)}\/?(.*)_helper.rb$/
+          helpers += Dir["#{path}/**/*_helper.rb"].map { |file| file.sub(extract, '\1') }
+        end
+        helpers.uniq!
+        helpers
       end
     end
   end