Ruby on Rails - 设计用户/ sign_out不工作 [英] Ruby on Rails - devise users/sign_out not working

问题描述

我正在使用devise
sign_in 和 sign_up urls正在工作

I'm using devise sign_in and sign_up urls are working

但是，当我尝试url时，
： http：// localhost：3000 / users / sign_out

but, when I try the url: http://localhost:3000/users/sign_out

它会生成路由错误

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

我该如何解决？

rake routes
        new_user_session GET    /users/sign_in(.:format)           {:action=>"new", :controller=>"devise/sessions"}
            user_session POST   /users/sign_in(.:format)           {:action=>"create", :controller=>"devise/sessions"}
    destroy_user_session DELETE /users/sign_out(.:format)          {:action=>"destroy", :controller=>"devise/sessions"}
           user_password POST   /users/password(.:format)          {:action=>"create", :controller=>"devise/passwords"}
       new_user_password GET    /users/password/new(.:format)      {:action=>"new", :controller=>"devise/passwords"}
      edit_user_password GET    /users/password/edit(.:format)     {:action=>"edit", :controller=>"devise/passwords"}
                         PUT    /users/password(.:format)          {:action=>"update", :controller=>"devise/passwords"}
cancel_user_registration GET    /users/cancel(.:format)            {:action=>"cancel", :controller=>"devise/registrations"}
       user_registration POST   /users(.:format)                   {:action=>"create", :controller=>"devise/registrations"}
   new_user_registration GET    /users/sign_up(.:format)           {:action=>"new", :controller=>"devise/registrations"}
  edit_user_registration GET    /users/edit(.:format)              {:action=>"edit", :controller=>"devise/registrations"}
                         PUT    /users(.:format)                   {:action=>"update", :controller=>"devise/registrations"}
                         DELETE /users(.:format)                   {:action=>"destroy", :controller=>"devise/registrations"}
    status_message_index GET    /status_message(.:format)          {:action=>"index", :controller=>"status_message"}
                         POST   /status_message(.:format)          {:action=>"create", :controller=>"status_message"}
      new_status_message GET    /status_message/new(.:format)      {:action=>"new", :controller=>"status_message"}
     edit_status_message GET    /status_message/:id/edit(.:format) {:action=>"edit", :controller=>"status_message"}
          status_message GET    /status_message/:id(.:format)      {:action=>"show", :controller=>"status_message"}
                         PUT    /status_message/:id(.:format)      {:action=>"update", :controller=>"status_message"}
                         DELETE /status_message/:id(.:format)      {:action=>"destroy", :controller=>"status_message"}
                    home        /home(.:format)                    {:action=>"index", :controller=>"status_message"}
                    root        /                                  {:controller=>"home", :action=>"index"}

routes.rb < h1>

routes.rb

Microblog::Application.routes.draw do
  devise_for :users, :controllers => {:migrations => "users/registrations"}
  resources 'status_message'
  match 'home' => 'status_message#index'
  root :to => 'home#index'
end

推荐答案

错误的原因是使用GET HTTP方法无法访问该路由。请注意您的 rake路线中的相关行为输出：

The reason for the error is that the route is inaccessible using the GET HTTP method. Notice what the relevant line looks like in your rake routes output:

destroy_user_session DELETE /users/sign_out(.:format)

意思是，如果要记录用户您需要向该URL发送DELETE请求。在rails中，您可以生成一个这样的链接：

Meaning that, if you want to log the user out, you need to send a DELETE request to that url. In rails, you can generate a link that does that like so:

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

# alternatively (although NOT recommended):

link_to 'Sign out', '/users/sign_out', :method => :delete

重要的部分是：method => ：删除。请注意，浏览器并不真正支持DELETE请求，rails实际上是POST数据，但它发送一个模拟DELETE方法的特殊参数。

The important part is :method => :delete. Note that a DELETE request is not really supported by browsers, rails is actually POSTing the data, but it sends a special parameter that simulates the DELETE method.

是登出网址是将当前用户登录出去的一种破坏性的动作。如果可以通过浏览器自由访问，可能会导致各种问题。 GET请求不应该改变服务器的状态。有关这方面的更多信息，以下是一个很好的维基百科文章： http://en.wikipedia.org/wiki / REST＃RESTful_web_services

The reason behind this is that the "sign out" url is one that would log the current user out, a destructive action. If it was freely accessible through the browser, it could cause various problems. GET requests should never change the state of the server. For more information on this, here's a nice wikipedia article: http://en.wikipedia.org/wiki/REST#RESTful_web_services

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