Rails rails validates 验证如何实现多个属性必须填一个
colorfulberry
·
September 03, 2014
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Last by colorfulberry replied at September 05, 2014
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1996 hits
例如 user 表中有 fax,email,phone 三个属性 如何实现 fax,email,phone 有 email 值的时候 fax 和 phone 为空，有 fax 和 phone 的时候 email 为空的验证？ @Rei
@Rei OK thanks! 谢谢给的锚点链接 in user model
calss User < Application::Base
attr_reader :user_properity
validate :user_properity_should_be_presence
private
def user_properity_should_be_presence
if email.blank? and (name.blank? or fax.blank?)
errors.add(:user_properity, "必须输入有邮件或者fax和phone")
end
end
valide
in _form.html
div calss="error">
<% if @user.errors[:user_properity].present? %>
<%= @user.errors[:user_properity] %>
<% end %>
</div>
validates_presence_of :email, :if => lambda { |user| user.phone.nil? && user.fax.nil? }
这样写行不行？