Question

我有一个Rails 4应用程序，其中所有控制器和视图分为两个名称空间，面向代理backend和面向客户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，所有控制器都继承自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]。

有没有办法为每个控制器的URL助手设置一个默认命名空间，以便从继承自BackendController的控制器调用的respond_with @event会自动假定正确的命名空间？

Answer 1

您可以在路线文件中使用scope module: :backend代替namespace :backend。

如果您希望模块名称显示在URL中，您也可以向范围添加:path选项。

考虑以下路线文件：

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

希望有所帮助！

在Rails 4中为URL Helpers设置默认命名空间？

1 个答案: