Rails 5 控制器中未定义的方法 respond_to [英] undefined method respond_to in Rails 5 controller

问题描述

我正在将应用程序从 rails 3.something 升级到 rails 5.出于某种原因，每当我在我的任何控制器中使用该方法时，我都会收到未定义的方法 response_to.这以前有效，我希望这里有人可以提供帮助.

I'm upgrading an app from rails 3.something to rails 5. For some reason, I'm am getting undefindied method respond_to anytime I use that method in any of my controllers. This was working before and I was hoping someone here could help.

class StatusController < ApplicationController

  #this throws an error 'undefined method respond_to
  respond_to :json, :html     
 end

推荐答案

根据 Rails5 个发行说明，

去掉respond_to/respond_with占位符方法，这个功能已提取到响应者宝石.

Remove respond_to/respond_with placeholder methods, this functionality has been extracted to the responders gem.

将 responders gem 添加到您的 Gemfile.

Add responders gem to your Gemfile.

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