Rails4验证唯一性范围检查两个以上条件

【问题标题】：Rails4 validation uniqueness scope check for more than two conditionRails4验证唯一性范围检查两个以上条件
【发布时间】：2015-01-14 05:09:33
【问题描述】：

我在模型中对我的电子邮件进行了以下验证

:uniqueness => { :scope => :company_id, :message => "Email has already been taken" }

如何给出两个范围条件来验证唯一性

:uniqueness => { :scope => :company_id and :status => 0, :message => "电子邮件已被占用" }

【问题讨论】：

【解决方案1】：

试试这个

:uniqueness => { :scope => [:company_id, :status], :message => "Email has already been taken"}, if: Proc.new { |obj| obj.status == 0 }

【讨论】：