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Some release notes love ❤️

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rafaelfranca committed Aug 14, 2012
1 parent 2d9dbf4 commit 89cc4f15014cd7d544f912331bed836c5e5c3f0a
Showing with 31 additions and 0 deletions.
  1. +31 −0 guides/source/4_0_release_notes.textile
@@ -196,6 +196,37 @@ h5(#actioncontroller_deprecations). Deprecations
h4. Action Dispatch
+* Add Routing Concerns to declare common routes that can be reused inside others resources and routes.
+
+Code before:
+
+<ruby>
+resources :messages do
+ resources :comments
+end
+
+resources :posts do
+ resources :comments
+ resources :images, only: :index
+end
+</ruby>
+
+Code after:
+
+<ruby>
+concern :commentable do
+ resources :comments
+end
+
+concern :image_attachable do
+ resources :images, only: :index
+end
+
+resources :messages, concerns: :commentable
+
+resources :posts, concerns: [:commentable, :image_attachable]
+</ruby>
+
* Show routes in exception page while debugging a <tt>RoutingError</tt> in development.
* Include <tt>mounted_helpers</tt> (helpers for accessing mounted engines) in <tt>ActionDispatch::IntegrationTest</tt> by default.

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