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| -rw-r--r-- | guides/source/4_0_release_notes.textile | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/guides/source/4_0_release_notes.textile b/guides/source/4_0_release_notes.textile index 914ba0dd9a..0de8a0a4b7 100644 --- a/guides/source/4_0_release_notes.textile +++ b/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. |