没有路由匹配 [GET] "/user/sign_out"

Question

所以，当我在导航栏的下拉菜单上单击“退出”时出现以下错误：

No route matches [GET] "/user/sign_out"

但是，这仅在使用下拉导航（移动设备的汉堡菜单）上的退出时发生，而不是在常规导航上单击退出时发生。

请看下面的代码：

  <div class="container demo-5">
    <div class="main clearfix">
      <div class="column">
        <div id="dl-menu" class="dl-menuwrapper">
          <button class="dl-trigger">Open Menu</button>
          <ul class="dl-menu dl-menu-toggle">
            <div id="closebtn"  onclick="closebtn()"></div>
            <% if user_signed_in? %>
            <li><%= link_to 'FAQ', faq_path %></li>
            <li><a href="#">Contact Us</a></li>
            <li><%= link_to 'My Account', account_path %></li>                    
            <li><%= link_to 'Sign Out',  destroy_user_session_path, method: 'delete' %></li> <--- this is the line
            <% else %>
            <li><%= link_to 'FAQ', faq_path %></li>
            <li><a href="#">Contact Us</a></li>
            <li><%= link_to 'Sign In', new_user_session_path %></li>
            <li><%= link_to 'Free Trial', plans_path %></li>
            <% end %>
          </ul>
        </div><!-- /dl-menuwrapper -->
      </div>
    </div>
  </div><!-- /container -->
</div>

这是有效的非下拉代码：

  <div class="signincontainer pull-right">
        <div class="navbar-form navbar-right">
          <% if user_signed_in? %>
            <%= link_to 'Sign out', destroy_user_session_path, class: 'btn signin-button', method: :delete %>
              <div class="btn signin-button usernamefont"><%= link_to current_user.full_name, account_path %></div>
          <% else %>
....rest of code here

更新错误：

ActionController::RoutingError (No route matches [GET] "/user/sign_out"):
  actionpack (4.0.4) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
  actionpack (4.0.4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.0.4) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.0.4) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.0.4) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.0.4) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.0.4) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.0.4) lib/rails/rack/logger.rb:20:in `call'
  quiet_assets (1.0.2) lib/quiet_assets.rb:18:in `call_with_quiet_assets'
  actionpack (4.0.4) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
  rack (1.5.2) lib/rack/ru

Answer 1

method 指定了must be a symbol。

在不起作用的代码中，它当前是一个字符串：

link_to 'Sign Out', destroy_user_session_path, method: 'delete' 

在有效的代码中，它被正确地指定为符号：

link_to 'Sign out', destroy_user_session_path, method: :delete

Answer 2

@colinm的回答是对的；但让我解释一下原因：

--

HTTP 动词

Devise sets a series of RESTful routes when you install it。在它生成的所有路由中，有destroy_user_session_path，它使用delete HTTP 动词：

 destroy_user_session DELETE /users/sign_out   {controller:"devise/sessions", action:"destroy"}

这意味着当您在link_to 方法中使用delete 方法时，此路由仅可用，如下所示：

<%= link_to "Log Out", destroy_user_session_path, method: :delete %>

HTML 默认为GETHTTP Verb，这意味着如果您没有在代码中明确定义method: :delete，Rails 将不会为路由寻找正确的verb

Answer 3

让我们试试这个； 删除

devise_for :users, :path => 'user'

添加这个；

devise_for :users, :path => 'user' do
  get '/user/sign_out' => 'devise/sessions#destroy' 
end

更多; here

最后的建议

我发现它需要 javascript 将请求转换为 DELETE；

所以

use devise_for :users, :path => 'user' in your config/routes

确保您在 application.html.erb 中加载了 javascript

<%= javascript_include_tag "application" %>

其次，确保您添加了 jquery 和 jquery-ujs gem 以及类似的东西；

//= require jquery
    //= require jquery_ujs