Rails未定义常量:ActiveRecord :: RecordNotFound

Question

我的应用程序控制器中有以下代码:

class ApplicationController < ActionController::Base
  protect_from_forgery
  rescue_from ActiveRecord::RecordNotFound, :with => :record_not_found
  private
  def record_not_found
    render :text => "404 Not Found", :status => 404
  end
end

当我运行它(实际上我运行rake db:migrate)我得到错误uninitialized constant ActiveRecord::RecordNotFound.这似乎太简单了 - 帮助!

Answer 1

它需要require 'active_record/errors',我在google搜索时找到的任何例子都没有看到.