…rb and use helper(:all) just after that
… hook This change is needed, because we must take namespace into account and if controller's/mailer's class is namespaced, engine's paths should be set instead of application's ones. The nice side effect of this is removing unneeded logic in ActionController::Base.inherited - now the helpers_path should be set correctly even for engine's controllers, so helper(:all) will always include correct helpers.
…ties::RoutesHelper to AbstractController::Railties::RoutesHelpers
…ude engine's ones for controllers inside isolated namespace
mounted_helpers are a bit similar to url_helpers. They're automatically included in controllers for Rails.application and each of mounted Engines. Mounted helper allows to call url_for and named helpers for given application. Given Blog::Engine mounted as blog_engine, there are 2 helpers defined: app and blog_engine. You can call routes for app and engine using those helpers: app.root_url app.url_for(:controller => "foo") blog_engine.posts_path blog_engine.url_for(@post)