Rails4 jbuilder 总是返回状态码 200，即使我放了其他状态码 [英] Rails4 jbuilder always return status code 200, even if I put other status code

问题描述

我构建了一个 json 视图以在 rails4 应用程序的 ajax 调用之一中返回 json.我已经使用了这里建议的想法https://stackoverflow.com/a/12832116/1560470

I built a json view to return json in one of ajax call in rails4 app. I have used the idea suggested here https://stackoverflow.com/a/12832116/1560470

但我总是得到 200 的状态码，即使我强制执行其他状态码.

But I always keep getting status code as 200, even if I enforce other status code.

我在 view/managers/create.json.jbuilder 中的 jbuilder 视图如下所示:

My jbuilder view in view/managers/create.json.jbuilder looks as follows:

if @manager.errors.messages.any?
  envelope(json, :unprocessable_entity, @manager.errors.messages) do
    json.success false
  end
else
  envelope(json, :created) do
    json.success true
  end
end

我的应用程序助手lloks如下:

My application helper lloks as follows:

module ApplicationHelper

  def envelope json, status, errors
    json.status status
    json.data do
      yield if block_given?
    end
    json.errors errors
  end

end

我的控制器如下:

def create
    @manager = Manager.new manager_params
    @saved = ( @manager.valid? && @manager.save )
end

你可以看到即使我在我的 jbuilder 视图中将 status 参数值作为 :unprocessable_entity 传递，每次仍然响​​应返回 200.即使我使用任何状态代码，它总是返回 200.状态代码定义在 http://guides.rubyonrails.org/layouts_and_rendering.html

You can see even I am passing status params value as :unprocessable_entity in my jbuilder view, still response comes back as 200 every time. Even I use any status code, it always return 200. Status codes are defined at http://guides.rubyonrails.org/layouts_and_rendering.html

推荐答案

我遇到了同样的问题，我发现成功调用 render 后跟您想要发出的任何状态.在 create 的底部放置以下内容

I had the same issue, I found success with a call to render followed by whatever status you want to issue. At the bottom of create put the following

render status: 400

参考:https://stackoverflow.com/a/28144206/3826642

您可以将逻辑从该信封方法移动到 jbuilder 模板，以便将状态直接从控制器传递到视图.

You can move the logic from that envelope method to the jbuilder template so you're passing status directly from controller to the view.

您在信封方法中的状态只会在呈现的 json 中，它不是服务器发送的 http 响应状态代码，而在呈现方法中的状态代码是

That status you have in the envelope method will only be in the json that is rendered, it's not a http response status code sent by the server whereas as the one in the render method is

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