Ruby on Rails未定义的方法`attr_accessible'和'before_save'？ [英] Ruby on Rails undefined method `attr_accessible' and 'before_save'?

问题描述

我最近开始了一个新的RoR项目，并从大约6个月前复制了一些旧的代码。

由于某些原因，我收到以下错误在我的用户模型中：

 未定义的方法attr_accessible为用户：类
  / pre> 
 
 
当我评论attr_accessible行时，我在同一个文件中收到类似的错误：
 未定义的方法`before_save'为用户：类
  
我评论说，我得到另一个：
  undefined方法验证为用户：类
  
为什么attr_accessible和before_save是未定义的方法？我认为那些内置于Ruby on Rails！？
解决方案
你的User类是否继承自ActiveRecord :: Base？ p> 
 
 
应该如下所示：
  class User< ActiveRecord :: Base 
  
 
I recently started a new RoR project, and copied some of my old code from about 6 months ago.

For some reason, I'm getting the following error in my User model:
undefined method `attr_accessible' for User:Class
When I comment the attr_accessible line out, I then get a similar error in the same file:
undefined method `before_save' for User:Class
And when I comment that out, I get another one:
undefined method `validates' for User:Class
Why would attr_accessible and before_save be undefined methods?  I thought those were built in to Ruby on Rails!?
解决方案
Is your User class inheriting from ActiveRecord::Base?

It should look like this:
class User < ActiveRecord::Base


                        
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