一个用户在不同表里都有记录,怎么删除比较好?
目前后台有一个删除用户的功能,但是由于功能模块很多,需要清理用户在多张表下的记录。
<code> //清除该用户的所有发布的文章以及文章关联的标签 //清除该用户的所有关注的标签 //清除该用户的所有问题 //清除该用户的所有回答 //清除该用户的所有积分 //清除该用户的所有评论 //清除该用户的所有收藏 //清除该用户的所有问题关注 //清除该用户的所有私信 //清除该用户的所有消息通知 //清除该用户的所有草稿 //清除赠送给用户的所有邀请码 //清除该用户所有的邀请回答 //清除该用户的好友关系 //清空用户统计表 //清除用户的报名记录 .... </code>
大家一般如何处理,是确实清除这些相关信息么。还是对删除的用户信息进行保留,只是用标识不做查询??
回复内容:
目前后台有一个删除用户的功能,但是由于功能模块很多,需要清理用户在多张表下的记录。
<code> //清除该用户的所有发布的文章以及文章关联的标签 //清除该用户的所有关注的标签 //清除该用户的所有问题 //清除该用户的所有回答 //清除该用户的所有积分 //清除该用户的所有评论 //清除该用户的所有收藏 //清除该用户的所有问题关注 //清除该用户的所有私信 //清除该用户的所有消息通知 //清除该用户的所有草稿 //清除赠送给用户的所有邀请码 //清除该用户所有的邀请回答 //清除该用户的好友关系 //清空用户统计表 //清除用户的报名记录 .... </code>
大家一般如何处理,是确实清除这些相关信息么。还是对删除的用户信息进行保留,只是用标识不做查询??
首先,如上面各位所说,尽量不要删除重要数据。
其次,如果你确实需要实现主表删除,从表自动删除的功能。只需要在数据库里添加外键,并设置为ON DELETE CASCADE。
这种外键在删除主表数据时,会自动删除从表中执行被删除数据的记录。只要外键设计的好。主表删除一条数据,一堆从表跟着删得尸横片野……
最好是在表中新增一个字段,标识出该条记录是否删除。
设置一个标识字段,将用户标识为已经删除,之后查找的时候,所有与用户相关的个人数据就无法在查找到也就不用做过多的操作。至于统计之类的则可以多加一个对于用户是否可用的判断即可。
我觉得也是,数据一定不要删,保不齐你那天又想要了。没了可咋整。。
一个事物保准给她删的干干静静
放在一个数据库事务中,一起删除
参考laravel的soft delete 增加一个字段delete_at 默认为null 删除的时候更新为当前时间
你敢删数据?!我报警了!

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