小编chi*_*ief的帖子

因此,要在我运行的用户模型中获取记录

 @user = User.find(1)

然后更改属性:

 @user.active = false

然后它返回false

我跑的时候

 @user.save

我明白了

(0.2ms)  BEGIN
(0.3ms)  SELECT 1 FROM `users` WHERE (LOWER(`users`.`username`) = LOWER('sean') AND `users`.`id` != 1) LIMIT 1
(0.3ms)  SELECT 1 FROM `users` WHERE (LOWER(`users`.`email`) = LOWER('sean@gmail.com') AND `users`.`id` != 1) LIMIT 1
(0.6ms)  ROLLBACK
 => false