Question

我正在使用lists构建基本的类型应用，其中每个has_many items。我正在尝试为委派任务（sharing/tasks.html.erb）构建一个视图，以显示已标记为委派的items。以下是tasks.html.erb页面上的相关代码：

  <h2 class="text-center">Delegated to Me</h2>
  <% @deligated_to_me.each do |item| %>
      <p><%= link_to list_path(@list) do %>
        <%= item.name %>
      <% end %>
     (Deligated by <%= item.user_id %>)</p>
  <% end %>

以下是sharing_controller页面的tasks部分：

  def tasks
    @lists = List.all
    @list = List.friendly.find(params[:list_id])  <<<<ERROR CALLED ON THIS LINE
    @items = Item.all
    @delegated_to_me = @items.where(:delegated_to == current_user.email)
    @delegated_by_me = current_user.items.where.not(delegated_to: "")
  end

当我尝试查看该页面时，我收到Record Not Found错误Couldn't find List without an ID。从我在其他SO帖子上看到的情况来看，通常这是一个未在控制器中声明的变量的问题，但这似乎不是这里的情况。任何人都可以帮我排除故障吗？

附加信息：路线

      list_items GET    /lists/:list_id/items(.:format)          items#index
                 POST   /lists/:list_id/items(.:format)          items#create
   new_list_item GET    /lists/:list_id/items/new(.:format)      items#new
  edit_list_item GET    /lists/:list_id/items/:id/edit(.:format) items#edit
       list_item GET    /lists/:list_id/items/:id(.:format)      items#show
                 PATCH  /lists/:list_id/items/:id(.:format)      items#update
                 PUT    /lists/:list_id/items/:id(.:format)      items#update
                 DELETE /lists/:list_id/items/:id(.:format)      items#destroy
           lists GET    /lists(.:format)                         lists#index
                 POST   /lists(.:format)                         lists#create
        new_list GET    /lists/new(.:format)                     lists#new
       edit_list GET    /lists/:id/edit(.:format)                lists#edit
            list GET    /lists/:id(.:format)                     lists#show
                 PATCH  /lists/:id(.:format)                     lists#update
                 PUT    /lists/:id(.:format)                     lists#update
                 DELETE /lists/:id(.:format)                     lists#destroy
   sharing_lists GET    /sharing/lists(.:format)                 sharing#lists
   sharing_tasks GET    /sharing/tasks(.:format)                 sharing#tasks

Answer 1

将@list替换为item.list

<h2 class="text-center">Delegated to Me</h2>
<% @deligated_to_me.each do |item| %>
  <p>
    <%= link_to list_path(item.list) do %>
      <%= item.name %>
    <% end %>
    (Deligated by <%= item.user_id %>)
  </p>
<% end %>

并从控制器中删除代码。

@list = List.friendly.find(params[:list_id])

记录未找到错误：找不到没有ID的列表

1 个答案: