project/app/admin/model/SaleBk.php

<?php
namespace app\admin\model;

class SaleBk extends Base
{
//设置字段信息
    protected $schema = [
        'id'       =>'bigint',//
        'orderCode'       =>'varchar',//确认单编号
        'spuCode'       =>'varchar',//商品编号
        'total_num'       =>'int',//总数
        'merge_num'       =>'int',//已合并数量
        'balance_num'       =>'int',//带合并数量
        'status'       =>'tinyint',//状态
        'is_del'       =>'tinyint',//
        'addtime'       =>'datetime',//
        'updatetime'       =>'datetime',//

    ];
}