私信功能设计求助！
制作类似OSC网站的私信功能（php+mysql）：
1.在列表页面列出所有我发出和发给我的私信，同一个人的当然只显示最后一条发出去的，或收到的
2.查看页面能列出两个人之间的所有对话
数据表怎么设计？
列表页面怎么读？
回复内容：
制作类似OSC网站的私信功能（php+mysql）：
1.在列表页面列出所有我发出和发给我的私信，同一个人的当然只显示最后一条发出去的，或收到的
2.查看页面能列出两个人之间的所有对话
数据表怎么设计？
列表页面怎么读？
我说个简单的
容量小的话一个表就够了
字段包括主键id 父id 发送者id 接收者id 内容 发送时间
所有人发送私信都是这种格式储存
第一次发送的首条私信的父id为0
回复或者继续发送的话 父id为第一条私信的主键id
查看私信对话详情就可以拿第一条私信的id去父id字段查询 之后按照时间排列
私信列表的话 查询用户id 发送者or接收者 用group和having分组筛选出对话中最后的回复
总之 实现的方法有很多 数据表设计复杂了 逻辑层面就简单些 数据表简单了 逻辑层就会复杂 权衡利弊就可以
这里的父id似乎没什么用吧？
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