link_to更新（无表格） [英] link_to update (without form)

问题描述

我想要一个链接来更新资源，而不使用HTML表单。

I want a link to update a resource, without using an HTML form.

路由：

resources :users do
  resources :friends
end    

耙路：

 user_friend GET /users/:user_id/friends/:id(.:format){:action=>"show", :controller=>"friends"}
             PUT /users/:user_id/friends/:id(.:format){:action=>"update", :controller=>"friends"}

I想要使用put来通过一个简单的链接来更新朋友，例如：

I want to use the put to update a friend by a simple link, something like this:

<%= link_to "Add as friend", user_friend_path(current_user, :method=>'put') %>

但是当我单击链接时，它会尝试进入显示操作。

But when I click the link, it tries to go into the show action.

正确的方法是什么？

推荐答案

link_to "Add as friend", user_friend_path(current_user, @friend), :method=> :put

将插入属性 data-method设置为 put的链接，这将反过来被Rails javascript拾取，并变成了幕后的形式……我想这就是您想要的。

Will insert a link with attribute 'data-method' set to 'put', which will in turn be picked up by the rails javascript and turned into a form behind the scenes... I guess that's what you want.

您应该考虑使用：post，因为您似乎正在两个用户之间创建一个新链接，而不是对其进行更新。

You should consider using :post, since you are creating a new link between the two users, not updating it, it seems.

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