Rails密码更新验证问题

Question

我有以下验证:

validates :password, :presence => true, :confirmation => true, :length => { :within => 6..40 }, :format => { :with => pass_regex }, :unless => :nopass?

然后，当我尝试更新没有密码(nopass?为true)出现以下错误:

There were problems with the following fields:
Password is too short (minimum is 6 characters)
Password is invalid

注意:unless适用于:presence和:confirmation，但不适用于:length和:format。

我该如何解决这个问题?

Answer 1

我也有一些关于:确认标志的奇怪问题，我从来没有弄清楚，但这就是我在Rails 3.0中解决问题的方法。x应用程序:

attr_accessor :password_confirmation
validates :password, :presence => true, :length => {:within => PASSWORD_MIN_LENGTH..PASSWORD_MAX_LENGTH}
validate :password_is_confirmed
  def password_is_confirmed
 if password_changed? # don't trigger that validation every time we save/update attributes
  errors.add(:password_confirmation, "can't be blank") if password_confirmation.blank?
  errors.add(:password_confirmation, "doesn't match first password") if password != password_confirmation
 end
end

我知道这不是解释为什么你的代码不工作，但如果你正在寻找一个快速的临时修复-我希望这将帮助。

Answer 2

可以使用条件验证

class Person < ActiveRecord::Base
  validates :surname, :presence => true, :if => "name.nil?"
end