Question

视图

<td><%= link_to "+1", :controller => :profiles, :action => :addpoints, :profile_id => profile.id, :task_id => @task.id%></td>

尝试访问profile.id时：profile_id rails返回错误，id根本没有传递。我该如何解决？通过两个模型传递两个参数的最佳方法是什么？
耙路线

 Prefix Verb   URI Pattern                           Controller#Action
         welcome_index GET    /welcome/index(.:format)              welcome#index
     static_pages_home GET    /static_pages/home(.:format)          static_pages#home
static_pages_dashboard GET    /static_pages/dashboard(.:format)     static_pages#dashboard
  static_pages_pending GET    /static_pages/pending(.:format)       static_pages#pending
static_pages_taskcompleted GET    /static_pages/taskcompleted(.:format) static_pages#taskcompleted
           tasks_index GET    /tasks/index(.:format)                tasks#index
        tasks_complete GET    /tasks/complete(.:format)             tasks#complete
          tasks_delete GET    /tasks/delete(.:format)               tasks#delete
    profiles_addpoints GET    /profiles/addpoints(.:format)         profiles#addpoints
        profiles_index GET    /profiles/index(.:format)             profiles#index
                  root GET    /                                     static_pages#home
      new_user_session GET    /users/sign_in(.:format)              devise/sessions#new
          user_session POST   /users/sign_in(.:format)              devise/sessions#create
  destroy_user_session DELETE /users/sign_out(.:format)             devise/sessions#destroy
         user_password POST   /users/password(.:format)             devise/passwords#create
     new_user_password GET    /users/password/new(.:format)         devise/passwords#new
    edit_user_password GET    /users/password/edit(.:format)        devise/passwords#edit
                       PATCH  /users/password(.:format)             devise/passwords#update
                       PUT    /users/password(.:format)             devise/passwords#update
  cancel_user_registration GET    /users/cancel(.:format)               devise/registrations#cancel
     user_registration POST   /users(.:format)                      devise/registrations#create
 new_user_registration GET    /users/sign_up(.:format)              devise/registrations#new
edit_user_registration GET    /users/edit(.:format)                 devise/registrations#edit
                       PATCH  /users(.:format)                      devise/registrations#update
                       PUT    /users(.:format)                      devise/registrations#update
                       DELETE /users(.:format)                      devise/registrations#destroy
                 tasks GET    /tasks(.:format)                      tasks#index
                       POST   /tasks(.:format)                      tasks#create
              new_task GET    /tasks/new(.:format)                  tasks#new
             edit_task GET    /tasks/:id/edit(.:format)             tasks#edit
                  task GET    /tasks/:id(.:format)                  tasks#show
                       PATCH  /tasks/:id(.:format)                  tasks#update
                       PUT    /tasks/:id(.:format)                  tasks#update
                       DELETE /tasks/:id(.:format)                  tasks#destroy
              profiles GET    /profiles(.:format)                   profiles#index
                       POST   /profiles(.:format)                   profiles#create
           new_profile GET    /profiles/new(.:format)               profiles#new
          edit_profile GET    /profiles/:id/edit(.:format)          profiles#edit
               profile GET    /profiles/:id(.:format)               profiles#show
                       PATCH  /profiles/:id(.:format)               profiles#update
                       PUT    /profiles/:id(.:format)               profiles#update
                       DELETE /profiles/:id(.:format)               profiles#destroy

Answer 1

将profile.id替换为@profile.id。验证配置文件实际上是一个实例。可能正在传入nil值（与正确连接的内容相反）。

Answer 2

我们可以看到方法内容吗？如果错误与id有关，则路由正确。 params[:profile_id]中的内容是什么？我们需要更多信息..

Answer 3

我认为这是你想用Rails 4做的事情。

<%= link_to "+1", profiles_addpoints_path(:profile_id => profile.id, :task_id => @task.id) %>

上面的代码会在addpoints控制器中使用参数profiles调用{:profile_id => profile.id, :task_id => @task.id}方法。你可以像这样访问参数。 params[:profile_id]和params[:task_id]。

您的代码令人担忧的另一件事是，在routes.rb中，profiles_addpoints路由是通过GET HTTP动词调用的。这有潜在危险，因为谷歌搜索机器人将访问这些路径，并导致upvotes飙升。尊重HTTP约定并使用PUT。

link_to没有正确传递params

3 个答案: