ruby-on-rails - subdomain-fu 在 Rails 4 中不起作用

Question

在我的 gem 文件中，我添加了 gem 'subdomain-fu', '1.0.0.beta2'。然后我做到了bundle install。我试图打印 <%= current_subdomain %> 但我得到了undefined local variable or methodcurrent_subdomain'` 。为什么我会收到此错误？

我也重新启动了我的 nginx 服务器和独角兽。

Answer 1

在 Rails 中添加 sudomain 不需要 gem。

这是我成功添加到我的一个应用程序中的一些代码。

在您routes.rb添加以下内容：

constraints subdomain: false do
  root to: 'landings#index'
end

constraints subdomain: 'my' do
  get '/', to: 'users#show', as: 'app_root'

  resources :users
  resources :games do
    collection do
      get :search, to: 'games#search', as: :search
    end
  end
end

以下给了我：

                root GET    /                                                              landings#index
            app_root GET    /                                                              users#show {:subdomain=>"my"}
               users GET    /users(.:format)                                               users#index {:subdomain=>"my"}
                     POST   /users(.:format)                                               users#create {:subdomain=>"my"}
            new_user GET    /users/new(.:format)                                           users#new {:subdomain=>"my"}
           edit_user GET    /users/:id/edit(.:format)                                      users#edit {:subdomain=>"my"}
                user GET    /users/:id(.:format)                                           users#show {:subdomain=>"my"}
                     PATCH  /users/:id(.:format)                                           users#update {:subdomain=>"my"}
                     PUT    /users/:id(.:format)                                           users#update {:subdomain=>"my"}
                     DELETE /users/:id(.:format)                                           users#destroy {:subdomain=>"my"}
        search_games GET    /games/search(.:format)                                        games#search {:subdomain=>"my"}
               games GET    /games(.:format)                                               games#index {:subdomain=>"my"}
                     POST   /games(.:format)                                               games#create {:subdomain=>"my"}
            new_game GET    /games/new(.:format)                                           games#new {:subdomain=>"my"}
           edit_game GET    /games/:id/edit(.:format)                                      games#edit {:subdomain=>"my"}
                game GET    /games/:id(.:format)                                           games#show {:subdomain=>"my"}
                     PATCH  /games/:id(.:format)                                           games#update {:subdomain=>"my"}
                     PUT    /games/:id(.:format)                                           games#update {:subdomain=>"my"}
                     DELETE /games/:id(.:format)                                           games#destroy {:subdomain=>"my"}

这种方法的问题在于，对于子域路由，您必须使用search_games_path(subdomain: 'mysubdomainname')或search_games_url (which automatically points to your subdomain)

Answer 2

Rails 4 带有内置功能，因此您不需要使用旧的 gem，例如 subdomain_fu。

要获取 rails 4 中的当前子域，只需执行以下操作：

<%= request.subdomain %>