txx2023/app/txx/model/YzActivityPromoCode.php

<?php


namespace app\txx\model;
use think\Model;

class YzActivityPromoCode  extends  Model{

    protected $connection = 'mysql_yz';//切换连接参数
    protected $name = 'activity_promocode';
    protected $pk = 'id';
    protected $autoWriteTimestamp = false;
    protected $createTime='createTime';
    protected $updateTime='updateTime';

    public static function GetOrderNumById($id){
      $coupid= self::where(["act_good_id"=>$id])->value("group_id",0);
      if ($coupid>0){
          return self::name("order_promotion")->where(["coupon_id"=>$coupid])->count();
      }
      return 0;
    }
}