对有索引的表插入时报错23000
表有一个unique索引（两个字段）
对这个表进行add操作时报错，23000，也就是当数据存在时会报错，而不像手册中说的返回flase。
网上有人用异常，不考虑这个。。。。
还有人说在模型里加入验证，可是验证好像同时只能针对一个字段。。。
如果不用异常的话，有什么办法可以让插入失败时返回false？
回复内容：
表有一个unique索引（两个字段）
对这个表进行add操作时报错，23000，也就是当数据存在时会报错，而不像手册中说的返回flase。
网上有人用异常，不考虑这个。。。。
还有人说在模型里加入验证，可是验证好像同时只能针对一个字段。。。
如果不用异常的话，有什么办法可以让插入失败时返回false？
首先声明，插入失败返回false貌似做不到，但是还是有办法解决的。
1、validate是可以针对两个字段的，你可以先validate时对该字段使用unique，再使用$data->create(),如果返回true才进行add操作
2、可以直接先判断一下数据库中有没有当前unique字段，如果有的话仍然添加应该用save或者add($data,true)
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