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Home Backend Development PHP Tutorial 彭和平垃圾回收机制

彭和平垃圾回收机制

Jun 23, 2016 pm 02:39 PM

有一个功能:
删除某些内容后,能够恢复原有的内容。这是什么原理?
是不是可以把你想删除的东西存放到另一个表里面。
然后如果你想恢复的话从另一个表里面把它在更新下?

$sql="delete from `#@__skupdate_class` where id=".$id."";	$bool = $dsql->ExecuteNoneQuery($sql);	if(!$bool)	{        ShowMsg("课程信息回收站删除失败",'-1');        exit();    }else{		ShowMsg("课程信息回收站删除成功",'update_class.php?dopost=recycling&page='.$page.'');        exit();	}
Copy after login

$sql="Update `#@__skupdate_class` set state=1 where id=".$id."";	$bool = $dsql->ExecuteNoneQuery($sql);	if(!$bool)	{        ShowMsg("课程信息恢复失败",'-1');        exit();    }else{		ShowMsg("课程信息恢复成功",'update_class.php?dopost=recycling&page='.$page.'');        exit();	}
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这是几个意思明明已经删除了啊?
delete from `#@__skupdate_class` where id=".$id."
Copy after login

求解


回复讨论(解决方案)

好像明白了。我在这里少写了代码了!!

$sql="Update `#@__skupdate_class` set state=2 where id=".$id."";	$bool = $dsql->ExecuteNoneQuery($sql);	if(!$bool)	{        ShowMsg("课程信息删除失败",'-1');        exit();    }else{		ShowMsg("课程信息删除成功",'update_class.php?page='.$page.'');        exit();	}
Copy after login

其实就是更新到别的地方了。然后还原的时候在根据state把它还原回来。。搞定了  。不浪费大神们时间了 。。。。以后我看清楚了再发!

数据表定义status字段 0表示删除,1表示启用
当你新增数据的时候 status的状态为1,当你删除的时候status的状态为0
恢复数据,直接更改status状态属性即可。

数据表定义status字段 0表示删除,1表示启用
当你新增数据的时候 status的状态为1,当你删除的时候status的状态为0
恢复数据,直接更改status状态属性即可。
恩。我在想你头像的问题。。
哈哈

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