Question

这是我的路线：

scope ":username" do
  resources :feedbacks
end

当我rake routes时，我明白了：

    feedbacks GET    /:username/feedbacks(.:format)          {:action=>"index", :controller=>"feedbacks"}
              POST   /:username/feedbacks(.:format)          {:action=>"create", :controller=>"feedbacks"}
 new_feedback GET    /:username/feedbacks/new(.:format)      {:action=>"new", :controller=>"feedbacks"}
edit_feedback GET    /:username/feedbacks/:id/edit(.:format) {:action=>"edit", :controller=>"feedbacks"}
     feedback GET    /:username/feedbacks/:id(.:format)      {:action=>"show", :controller=>"feedbacks"}
              PUT    /:username/feedbacks/:id(.:format)      {:action=>"update", :controller=>"feedbacks"}
              DELETE /:username/feedbacks/:id(.:format)      {:action=>"destroy", :controller=>"feedbacks"}

但是当我做feedbacks_url或feedbacks_path时，我得到一个像这样的路由错误：

No route matches {:controller=>"feedbacks", :format=>nil}

从日志文件中：

Rendered users/show.html.erb within layouts/application (18.3ms)
Completed 500 Internal Server Error in 142ms

ActionView::Template::Error (No route matches {:controller=>"feedbacks", :format=>nil}):
    1: <%= form_for(@feedback) do |f| %>
    2:   <% if @feedback.errors.any? %>
    3:     <div id="error_explanation">
    4:       <h2><%= pluralize(@feedback.errors.count, "error") %> prohibited this feedback from being saved:</h2>
  app/views/feedbacks/_form.html.erb:1:in `_app_views_feedbacks__form_html_erb__2195884682603870163_2484875900'
  app/views/users/show.html.erb:11:in `_app_views_users_show_html_erb__3889159515317937411_2159438040'
  app/controllers/vanities_controller.rb:14:in `show'

这是部分feedbacks/_form.html.erb：

的形式

<%= form_for(@feedback) do |f| %>
  <% if @feedback.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@feedback.errors.count, "error") %> prohibited this feedback from being saved:</h2>

      <ul>
      <% @feedback.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <% if current_user %>

       <div class="poster_id">
        <%= f.hidden_field "poster_id", :value => current_user.id %><br />
       </div>
       <div class="receiver_id">
         <%= f.hidden_field "receiver_id", :value => @user.id %><br />
       </div>
       <div class="field">
         <%= f.text_field :content %>
       </div>
       <div class="actions">
         <%= f.submit %>
       </div>

   <% end %>


<% end %>

思想？

Answer 1

那么，

scope ":username" do

表示您的路线需要有关:username的一些信息才能正常使用。

然后，您应该在所有链接中添加此信息：

user_path(user, :username => "joe")
edit_user_path(user, :username => "joe")
...

或者您可以告诉您的应用username不是必需的，如果尚未创建用户，这似乎是逻辑。所以改变您的路线：

scope "(:username)" do
  resources :feedbacks
end

如何在rails 3.1中为作用域/嵌套资源创建named_route_path？

1 个答案: