coupon-admin/app/model/BusinessCircle.php

<?php
namespace app\model;

use think\Collection;
use think\db\exception\DataNotFoundException;
use think\db\exception\DbException;
use think\db\exception\ModelNotFoundException;
use think\Model;

/**
 * 商圈
 * Class BusinessCircle
 * @package app\model
 */
class BusinessCircle extends Base
{
    /**
     * 获取全部列表
     *
     * @return Disease[]|array|Collection
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     */
    public static function getList()
    {
        return self::field('id,name,sort')->order('id', 'desc')->select();
    }

    public  static function onAfterInsert($obj)
    {
        $obj->sort = $obj->id;
        $obj->save();
    }
}