確認画面とか、いろんなページで同じルートを設定する場合に便利。
例えばこんな感じで確認画面のルートを設定していた場合、
resources :users do
patch :confirm, :on => :member
put :confirm, :on => :member
post :confirm, :on => :collection
end
resources :information do
patch :confirm, :on => :member
put :confirm, :on => :member
post :confirm, :on => :collection
end
routes.rb
concernを使うとこんなにスッキリ!
concern :confirmable do
patch :confirm, :on => :member
put :confirm, :on => :member
post :confirm, :on => :collection
end
resources :users, :concerns => :confirmable
resources :information, :concerns => :confirmable
routes.rb
こうすると、 rake routes
ではこんな感じ。
$ rake routes | grep "users\|information"
confirm_user PATCH /users/:id/confirm(.:format) users#confirm
PUT /users/:id/confirm(.:format) users#confirm
confirm_users POST /users/confirm(.:format) users#confirm
users GET /users(.:format) users#index
POST /users(.:format) users#create
new_user GET /users/new(.:format) users#new
edit_user GET /users/:id/edit(.:format) users#edit
user GET /users/:id(.:format) users#show
PATCH /users/:id(.:format) users#update
PUT /users/:id(.:format) users#update
DELETE /users/:id(.:format) users#destroy
confirm_system_information PATCH /information/:id/confirm(.:format) information#confirm
PUT /information/:id/confirm(.:format) information#confirm
confirm_system_information_index POST /information/confirm(.:format) information#confirm
system_information_index GET /information(.:format) information#index
POST /information(.:format) information#create
new_system_information GET /information/new(.:format) information#new
edit_system_information GET /information/:id/edit(.:format) information#edit
system_information GET /information/:id(.:format) information#show
PATCH /information/:id(.:format) information#update
PUT /information/:id(.:format) information#update
DELETE /information/:id(.:format) information#destroy
Qiitaに投稿した記事です。