Rails 3.2与Devise：注销链接停止工作 [英] Rails 3.2 with Devise: logout link stopped working

问题描述

我的应用程序中的注销链接已正常工作，然后停止工作。我没有测试过一段时间，但是我没有对任何与它相关的一个月进行任何更改！当控制器将其解释为 DELETE 请求时，它将发送一个 GET 请求。这是我的代码：

The log out link in my app has been working fine, then it just stopped working. I haven't tested it for a while, but I haven't made any changes to anything related to it for a month! It is sending a GET request when it should be interpreted by the controller as a DELETE request. Here is my code:

我的视图中的ERB文件包括以下行：

My ERB file in my view includes this line:

<li><%= link_to('Log Out', destroy_user_session_path, :method => :delete)%></li>

，还包括：

<%= javascript_include_tag "application" %>

这是从我的 application.js

//
//= require jquery
//= require jquery_ujs
//= require underscore
//= require backbone
//= require jquery.serializeJSON
//= require jquery-ui-1.10.3.custom
//= require jquery-ui-touchpunch.min.js
//= require auto_form_bot
//= require_tree ../templates
//= require_tree ./models
//= require_tree ./collections
//= require_tree ./views
//= require_tree ./routers
//= require_tree .

这里是我的宝石文件中的相关内容：

And here is the pertinent stuff from my gemfile:

source 'https://rubygems.org'
ruby "1.9.3"

gem 'rails', '3.2.13'
gem 'backbone-on-rails', '~> 1.1'
gem 'compass-rails'
gem 'devise', '>= 3.1.0'
gem 'ejs'
gem 'figaro'
gem 'jquery-rails'
gem 'pg'
gem 'sass-rails',   '~> 3.2.3'

这是呈现的实际html：

This is the actual html that is rendered:

<li><a href="/users/sign_out" data-method="delete" rel="nofollow">Log Out</a></li>

当我点击链接，这里是我得到的错误：

When I click on the link, here is the error I get:

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

这里是我的服务器日志：

And here is my server log:

Started GET "/users/sign_out" for 127.0.0.1 at 2013-12-19 23:49:24 -0500

ActionController::RoutingError (No route matches [GET] "/users/sign_out")

以下是相关路线：

    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

GET 链接生成的请求应该自动更改为 DELETE 请求，但不再是，我不知道我改变了什么它停止工作。

The GET request generated by the link should automatically be changed to a DELETE request, but it isn't anymore, and I don't know what I changed to make it stop working.

甚至陌生人，每一次，它实际上工作！而且我的应用程序中的另一个页面上也有相同的链接。这是一个指向我的应用程序的模拟帐户的链接，您将自动登录，以便您可以注销： http://www.form-itable.com/accounts/demo

Even stranger, every once in a while it actually works! And the same link works on another page in my app. Here is a link to the demo account of my app, where you will be logged in automatically, so you can log out: http://www.form-itable.com/accounts/demo

我不知道我在这里失踪了什么。我知道我可以做一个解决方法，但链接应该可以正常工作，直到现在，我想知道为什么不这样。

I can't figure out what I am missing here. I know I can make a workaround, but the link should work and worked fine until now, and I want to know why it isn't.

推荐答案

当我正在阅读 jquery_ujs文件时，看到它似乎变成了通过在文档上设置事件侦听器到 DELETE 的链接 $ c>，像这样：

As I was reading through the jquery_ujs files I saw that it appears that it turns links from GET to DELETE by setting up an event listener on the document, like so:

// Link elements bound by jquery-ujs
linkClickSelector: 'a[data-confirm], a[data-method], a[data-remote], a[data-disable-with]'

...

$document.delegate(rails.linkClickSelector, 'click.rails', function(e) {
  var link = $(this), method = link.data('method'), data = link.data('params'), metaClick = e.metaKey || e.ctrlKey;
... more code ...

在我的应用程序中，我有一个复杂的我需要的情况从文档中删除​​点击事件，由于我没有使用任何其他点击处理程序，我刚刚调用 $（document）.off（'click'）; 将删除在文档上收听点击事件的所有内容 。这显然是一件非常糟糕的事情。我替换了那条专门删除我的点击处理程序的东西，并且一切正常工作。

In my app at one point, I had a complicated situation where I needed to remove a click event from the document, and since I wasn't using any other click handlers, I just called $(document).off('click'); which removes everything that is listening to click events on the document. This, apparently, is a very bad thing. I replaced that line with something that specifically removed my click handler, and everything works again.

这个教训是，如果你使用jQuery_ujs 不要使用 off（）在文档，除非您可以定位特定的处理程序。

The lesson is that if you are using jQuery_ujs do not ever use off() on the document unless you can target a specific handler.

这篇关于Rails 3.2与Devise：注销链接停止工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！