没有路由匹配[POST]进行删除和更新

时间:2013-10-15 12:50:20

标签: ruby-on-rails ruby routes http-delete

我知道很多次都会问这个问题,但到目前为止,没有一个食谱帮助过我。

我有一个用Ruby 2.0.0编写的应用程序,Rails 4.0.0以及以下routes.rb:

resources :announcements do
end

生成以下路线:

        announcements GET    /announcements(.:format)          announcements#index
                      POST   /announcements(.:format)          announcements#create
     new_announcement GET    /announcements/new(.:format)      announcements#new
    edit_announcement GET    /announcements/:id/edit(.:format) announcements#edit
         announcement GET    /announcements/:id(.:format)      announcements#show
                      PATCH  /announcements/:id(.:format)      announcements#update
                      PUT    /announcements/:id(.:format)      announcements#update
                      DELETE /announcements/:id(.:format)      announcements#destroy

然后在HTML中我使用非常简单的构造:

<%= button_to 'X', announcement, method: :delete %>

产生以下代码:

<form method="post" class="button_to" action="/announcements/525c0d28b9fd0171e2000003">
    <div>
         <input type="hidden" value="delete" name="_method">
         <input type="submit" value="X">
         <input type="hidden" value="DR+QjuAG9npqqWRV16Zq0G4Cq3lGpNHY0qjV8LJpUZo=" name="authenticity_token">
    </div>
</form>

一切看起来都非常简单,干净和正确。不过我收到“No Route Matches”错误。为什么呢?

3 个答案:

答案 0 :(得分:3)

问题在于缺少中间件。我添加了

config.middleware.use Rack::MethodOverride

/config/application.rb

答案 1 :(得分:0)

尝试

<%= button_to "Delete", {:controller => :announcements, :action => 'destroy', :id => announcement.id }, :method => :delete %>

答案 2 :(得分:-1)

那是因为这些路径的路由需要:method => :delete(删除路径)&amp; :method => :put(更新路径)。 POST不适用于

根据Rails Documentation

  

在Rails中,资源丰富的路由提供HTTP谓词之间的映射   和控制器操作的URL。按照惯例,每个动作也会映射   到数据库中的特定CRUD操作

您还需要使用announcement_path作为您的网址帮助