ruby-on-rails - 在 Rails 4 中为 URL 助手设置默认命名空间？

Question

我有一个 Rails 4 应用程序，其中所有 Controller 和 View 都分为两个命名空间，一个面向代理的 backend和面向客户的 frontend :

MyApp::Application.routes.draw do
  constraints subdomain: "admin" do
    namespace :backend do
      resources :events
    end
  end

  constraints subdomain: /.+/ do                
    namespace :frontend do
      resources :events
    end
  end
end

此外，所有 Controller 都继承自 BackendController或 FrontendController :

controllers
├── application_controller.rb
├── backend
│   ├── events_controller.rb
├── backend_controller.rb
├── frontend
│   └── events_controller.rb
├── frontend_controller.rb

现在需要生成路径的所有内容都必须以命名空间为前缀，例如 respond_with [:backend, @event]或 form_for [:backend, @event] .

有没有办法为每个 Controller 的 URL 助手设置默认命名空间，以便 respond_with @event从继承自 BackendController 的 Controller 调用自动假定正确的命名空间？

Answer 1

您可以使用 scope module: :backend而不是 namespace :backend在您的路线文件中。

如果希望模块名称出现在 URL 中，可以添加 :path范围的选项也是如此。

考虑以下路由文件:

Rails.application.routes.draw do

  scope module: 'backend1' do
    resources :event1
  end

  scope module: 'backend2', path: 'backend3' do
    resources :event2
  end

  namespace 'backend3' do
    resources :event3
  end

end

这将产生以下路线:

               Prefix Verb   URI Pattern                         Controller#Action
         event1_index GET    /event1(.:format)                   backend1/event1#index
                      POST   /event1(.:format)                   backend1/event1#create
           new_event1 GET    /event1/new(.:format)               backend1/event1#new
          edit_event1 GET    /event1/:id/edit(.:format)          backend1/event1#edit
               event1 GET    /event1/:id(.:format)               backend1/event1#show
                      PATCH  /event1/:id(.:format)               backend1/event1#update
                      PUT    /event1/:id(.:format)               backend1/event1#update
                      DELETE /event1/:id(.:format)               backend1/event1#destroy
         event2_index GET    /backend3/event2(.:format)          backend2/event2#index
                      POST   /backend3/event2(.:format)          backend2/event2#create
           new_event2 GET    /backend3/event2/new(.:format)      backend2/event2#new
          edit_event2 GET    /backend3/event2/:id/edit(.:format) backend2/event2#edit
               event2 GET    /backend3/event2/:id(.:format)      backend2/event2#show
                      PATCH  /backend3/event2/:id(.:format)      backend2/event2#update
                      PUT    /backend3/event2/:id(.:format)      backend2/event2#update
                      DELETE /backend3/event2/:id(.:format)      backend2/event2#destroy
backend3_event3_index GET    /backend3/event3(.:format)          backend3/event3#index
                      POST   /backend3/event3(.:format)          backend3/event3#create
  new_backend3_event3 GET    /backend3/event3/new(.:format)      backend3/event3#new
 edit_backend3_event3 GET    /backend3/event3/:id/edit(.:format) backend3/event3#edit
      backend3_event3 GET    /backend3/event3/:id(.:format)      backend3/event3#show
                      PATCH  /backend3/event3/:id(.:format)      backend3/event3#update
                      PUT    /backend3/event3/:id(.:format)      backend3/event3#update
                      DELETE /backend3/event3/:id(.:format)      backend3/event3#destroy

希望有帮助!