爲什麼刪除方法給我錯誤的路徑？與

Question

我有簡單的刪除鏈接：

= link_to "Delete", messages_path(message.id), :method => :delete

給我的錯誤：No route matches [DELETE] "/messages.316"

如何解決這一問題？

我有紅寶石1.9.3p0的Rails 3.1.1

我的routes.rb

resources :messages do 
    collection do 
     get :outbox 
    end 
    end 

當我將其更改爲message_path我收到wrong number of arguments (0 for 1) - > full_trace：https://gist.github.com/1967988
- >所有文件： https://gist.github.com/1967994

outbox_messages GET /messages/outbox(.:format)   {:action=>"outbox", :controller=>"messages"} 
      messages GET /messages(.:format)     {:action=>"index", :controller=>"messages"} 
        POST /messages(.:format)     {:action=>"create", :controller=>"messages"} 
     new_message GET /messages/new(.:format)    {:action=>"new", :controller=>"messages"} 
     edit_message GET /messages/:id/edit(.:format)  {:action=>"edit", :controller=>"messages"} 
      message GET /messages/:id(.:format)    {:action=>"show", :controller=>"messages"} 
        PUT /messages/:id(.:format)    {:action=>"update", :controller=>"messages"} 
        DELETE /messages/:id(.:format)    {:action=>"destroy", :controller=>"messages"} 

編輯： 與How to destroy polymorphic model? Method destroy missing argument

Answer 1

你需要說message_path（單數），因爲它是一個單一消息路徑：

link_to "Delete", message_path(message.id), :method => :delete 

Answer 2

not messages_path。 messages_path返回索引。

Answer 3

您使用了錯誤的URL幫手。只需傳遞message變量作爲link_to的第二個參數即可。

例子：

= link_to "Delete", message, :method => :delete