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我有一个自定义验证程序,我试图在失败时输出错误消息,但无法执行此操作。有人可以告诉我,如果我在正确的地方做这件事。将错误消息添加到自定义验证程序
class User < ActiveRecord::Base
self.table_name = "user"
attr_accessible :name, :ip, :printer_port, :scanner_port
validates :name, :presence => true,
:length => { :maximum => 75 },
:uniqueness => true
validates :ip, :length => { :maximum => 75 },
:allow_nil => true
validates :printer_port, :presence => true, :if => :has_association?
validates :scanner_port, :presence => true, :if => :has_association?
def has_association?
ip != nil
end
end
我是有如下:
validates :printer_port, :presence => true, :message => "can't be blank", :if => :has_wfm_association?
但收到错误
Unknown validator: 'MessageValidator'
,当我试图把消息在验证结束逗号分离该has_association?打开问号和逗号橙色
我是否需要在存在时包含true语句?当我这样做的时候?和散列的结尾一起运行,并且都变成橙色。 – Jay 2012-04-26 14:59:38
只需要把空间,感谢您的帮助迪兰非常感谢:) – Jay 2012-04-26 15:38:05
我该如何接受? – Jay 2012-05-01 10:11:33