0
在这里,我想验证属性在我的模型已经改变Rails的回调模型改变
模型列
Customer
ID
First
Last
curr_gender
型号
before_update :gender_changed
protected
def gender_changed
self.curr_gender.changed?
#do code
end
,但我想下面的错误
NoMethodError in CustomersController#update
undefined method `changed?' for "2":String
谢谢您!
似乎工作! – Jseb 2012-08-13 15:53:19