<?php
header("Content-type:application/json");
//在发送数据到服务器前简单的进行编码
header('Access-Control-Allow-Origin:*');
if(!isset($_GET['action']))
{
//来访若没有定义action  那么就忽略
exit();
}
include_once ("./conn.php");
//管理员权限检测
//if(!isset($_COOKIE['gm']))
//{
//    //没有读取到管理权限
//    exit();
//}
//$gm=$_COOKIE['gm'];
//if($gm<=0)
//{
//    //管理权限不足
//    exit();
//}

//获取操作数据
$action=$_GET['action'];//操作类型
$results="0000";
if($action=="deletemajor")
{
    $majorid=$_GET['majorid'];
    $sql="update major as m set m.delete='1' where m.majorid='$majorid'";
    //执行sql命令
    $result=mysqli_query($link,$sql);
    if($result)
    {
        $results="ok";
    }else{
        $results="fail";
    }

}else if($action=="deleteteacher")
{
    $teacherid=$_GET['teacherid'];
    $sql="update teacher as t set t.delete='1' where t.teacherid='$teacherid'";
    //执行sql命令
    $result=mysqli_query($link,$sql);
    if($result)
    {
        $results="ok";
    }else{
        $results="fail";
    }

}else if($action=="deletecourse")
{
    $courseid=$_GET['courseid'];
    $sql="update course as co set co.delete='1' where co.courseid='$courseid'";
    //执行sql命令
    $result=mysqli_query($link,$sql);
    if($result)
    {
        $results="ok";
    }else{
        $results="fail";
    }

}else if($action=="deleteadpic")
{
    $adid=$_GET['adid'];
    $sql="delete from adpic where adid='$adid'";
    //执行sql命令
    $result=mysqli_query($link,$sql);
    if($result)
    {
        $results="ok";
    }else{
        $results="fail";
    }

}else if($action=="deleterule")
{
    $ids=$_GET['ids'];
    $idss=explode('a',$ids);
    $courseid=$idss[0];
    $majorid=$idss[1];
    $grade=$idss[2];
    $sql="delete from electivelimit where courseid='$courseid' and majorid='$majorid' and grade='$grade'";
    //执行sql命令
    $result=mysqli_query($link,$sql);
    if($result)
    {
        $results="ok";
    }else{
        $results="fail";
    }

}else $results= "???";
$link->close();
echo json_encode($results);
//最后返回数据给前端
?>