求教list列表中,相连两行的位置交换的mysql语句?
怎么用PHP实现上移(↑)和下移(↓)的排序功能?使用的CI框架
当点击↑和↓时,需要给数据库传递哪些参数?
上移:点击排在第2行的操作中的向上箭头(↑),完成后原来的排在第2行的位置换到了第1条行。(第2行和第1行的信息交换位置)
下移:点击排在第9行的操作中的向下箭头(↓),完成后原来的排在第9行的位置换到了第10行。(第9行和第10行的信息交换位置)
回复讨论(解决方案)
再表上再加一列 职位position列 上移下移就是更新这个position列
再表上再加一列 职位position列 上移下移就是更新这个position列
我在表中有排序的字段(sort),现在问题是如果点击B行的向上箭头(↑),怎么获取A行的参数,就这个我有点没想通。
应该到语言版块去问,
如果你的sort是唯一的,在点击向上箭头(↑)事件中,获得当前sort,
下则+1,上则-1。
引用 1 楼 rucypli 的回复:再表上再加一列 职位position列 上移下移就是更新这个position列
我在表中有排序的字段(sort),现在问题是如果点击B行的向上箭头(↑),怎么获取A行的参数,就这个我有点没想通。
可以知道当前行的参数,肯定知道上一行的参数吧

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