Rails控制器返回200 OK时不会触发jquery ajax成功回调 [英] jquery ajax success callback not triggered when rails controller returns 200 OK

问题描述

我正在执行标准的ajax请求，并且有一个执行以下操作的Rails控制器操作:

I am doing a standard ajax request and I have a rails controller action that does:

def up_vote
  resource.votes.increment!
  render :nothing => true
end

这不会触发我的jquery ajax成功回调---但是它会触发statusCode:200回调，但是我想使用成功代替它.轨道渲染文档说使用"head"而不是render:nothing => true，所以我尝试做head:ok，但是结果相同.

This does not trigger my jquery ajax success callback--- It does however trigger the statusCode: 200 callback, but I want to use success instead of that. The rail rendering docs say to use "head" instead of render :nothing => true, so I tried doing head :ok, but that results in the same outcome.

如何使此方法触发成功回调?

How can I make this method trigger the success callback?

推荐答案

在Rails 3.2中使用head :ok样式响应时，我遇到了同样的问题.我通过在$.ajax调用中将dataType: "json"更改为dataType: "text"来解决此问题.

I've just run into the same problem while using the head :ok style response with Rails 3.2. I fixed it by changing dataType: "json" to dataType: "text" within my $.ajax call.

如果您指定需要JSON响应，则jQuery似乎不会调用成功回调，但是返回的数据不会验证为JSON.

It seems like jQuery does not call the success callback if you specify wanting a JSON response, but the returned data does not validate as JSON.

这个问题给了我我需要弄清楚的提示: jQuery. Ajax成功回调函数未执行

This question gave me the hint I needed to figure it out: jQuery.ajax success callback function not executed

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