book_admin/application/common/model/OrdersExtend.php

<?php


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

class OrdersExtend extends Model
{
    // 表名
    protected $table = 'orders_extend';
    // 开启自动写入时间戳字段
//    protected $autoWriteTimestamp = 'int';
    // 定义时间戳字段名
    protected $createTime = 'create_at';

    protected $updateTime = 'updated_at';

}