ruby-on-rails - Hartl 的 ruby​​-on-rails 教程第 11 章删除微博时出现“无路线匹配”错误 - 完全难倒

Question

我正试图在完成 Michael Hartl 的 ROR 教程时找出一个特别难以捉摸的错误。

当点击微博的“删除”(从主页或用户/显示页面)时，网址为http://localhost:3000/microposts/303 ，但结果是“路由错误 - 没有路由匹配”/microposts/303。

我已经浏览了涉及的每一页代码，并将它们替换为来自 Hartl 的 gitHub 项目站点的代码。 https://github.com/railstutorial/sample_app .例如，对于 microposts_controller，我从 gitHub depot 复制了代码，并用复制的代码替换了我的代码。然后我重新启动了服务器。同样的结果。然后我恢复到我的代码来测试下一页。

我交换代码的页面是

Controller 微博 Controller users_controller(显示方法)

模型微博.rb(模型)

观点微博/_micropost.haml共享/_微博_form.html.haml共享/_feed.haml共享/_feed_item.haml

和路线文件。

我不知道其他要检查的东西。有人有什么建议吗？

谢谢，

戴夫

rake路线的结果

 sessions POST   /sessions(.:format)       {:action=>"create", :controller=>"sessions"}
new_session GET    /sessions/new(.:format)   {:action=>"new", :controller=>"sessions"}
    session DELETE /sessions/:id(.:format)   {:action=>"destroy", :controller=>"sessions"}
     signin        /signin(.:format)         {:controller=>"sessions", :action=>"new"}
    signout        /signout(.:format)        {:controller=>"sessions", :action=>"destroy"}
 microposts POST   /microposts(.:format)     {:action=>"create", :controller=>"microposts"}
  micropost DELETE /microposts/:id(.:format) {:action=>"destroy", :controller=>"microposts"}
       root        /(.:format)               {:controller=>"pages", :action=>"home"}
    contact        /contact(.:format)        {:controller=>"pages", :action=>"contact"}
      about        /about(.:format)          {:controller=>"pages", :action=>"about"}
       help        /help(.:format)           {:controller=>"pages", :action=>"help"}
     signup        /signup(.:format)         {:controller=>"users", :action=>"new"}
development        /development(.:format)    {:controller=>"pages", :action=>"development"}
                   /signup(.:format)         {:controller=>"users", :action=>"new"}
      users GET    /users(.:format)          {:action=>"index", :controller=>"users"}
            POST   /users(.:format)          {:action=>"create", :controller=>"users"}
   new_user GET    /users/new(.:format)      {:action=>"new", :controller=>"users"}
  edit_user GET    /users/:id/edit(.:format) {:action=>"edit", :controller=>"users"}
       user GET    /users/:id(.:format)      {:action=>"show", :controller=>"users"}
            PUT    /users/:id(.:format)      {:action=>"update", :controller=>"users"}
            DELETE /users/:id(.:format)      {:action=>"destroy", :controller=>"users"}

Routes.rb 文件是

SampleApp::Application.routes.draw do

#Sign in Routes
  resources :sessions, :only => [:new, :create, :destroy]
  match '/signin', :to => 'sessions#new'
  match '/signout', :to => 'sessions#destroy'

#Microposts Routes
  resources :microposts, :only => [:create, :destroy]


#Pages Routes
  root :to => "pages#home"

  match '/contact', :to => 'pages#contact'
  match '/about',   :to => 'pages#about'
  match '/help',    :to => 'pages#help'
  match '/signup',  :to => 'users#new'
  match '/development', :to => 'pages#development'

#Users Routes
  match '/signup',  :to => 'users#new'
  resources :users

end

但是，正如我所说，即使将我的路由文件替换为 gitHub 上的文件也没有解决问题。

要删除的链接是

 = link_to "delete", micropost, :method => :delete,
                                      :confirm => "You sure?",
                                      :title => micropost.content

Answer 1

link_to :method => :delete 使用不显眼的 javascript 来创建 DELETE 请求。我的猜测是您的项目中没有必要的 javascript 文件(prototype.js/jquery.js 和 rails.js)，或者您没有将它们包含在您的布局中。