如何在ActiveRecord（Yii2）中为多个字段设置唯一性？我已经尝试过手动编写
['a1', 'unique', 'targetAttribute' => ['a1', 'a2']]
但这是行不通的。
从文档：
// a1 needs to be unique
['a1', 'unique']
// a1 needs to be unique, but column a2 will be used to check the uniqueness of the a1 value
['a1', 'unique', 'targetAttribute' => 'a2']
// a1 and a2 need to be unique together, and they both will receive error message
[['a1', 'a2'], 'unique', 'targetAttribute' => ['a1', 'a2']]
// a1 and a2 need to be unique together, only a1 will receive error message
['a1', 'unique', 'targetAttribute' => ['a1', 'a2']]
// a1 needs to be unique by checking the uniqueness of both a2 and a3 (using a1 value)
['a1', 'unique', 'targetAttribute' => ['a2', 'a1' => 'a3']]
本文收集自互联网，转载请注明来源。
如有侵权，请联系 [email protected] 删除。
我来说两句