Rails 检测请求是否为 AJAX [英] Rails detect if request was AJAX

问题描述

在我的操作中，如果它是从 AJAX 请求调用的，我希望只响应处理.我如何检查?

In my action I wish to only respond with processing if it was called from an AJAX request. How do I check?

我想做这样的事情:

def action
   @model = Model.find(params[:id])

   respond_to do |format|

      if (wasAJAXRequest()) #How do I do this?

         format.html #action.html.erb

      else

         format.html {redirect_to root_url}
   end
end

推荐答案

您可以检查 header[X-Requested-With] 是否是 AJAX 请求.这是一篇关于如何做的很好的文章它.

You can check for a header[X-Requested-With] to see if it is an AJAX request. Here is a good article on how to do it.

这是一个例子:

if request.xhr?
  # respond to Ajax request
else
  # respond to normal request
end

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