project/app/youzan/model/Promocode.php

<?php
namespace app\youzan\model;

class Promocode extends Base
{
//设置字段信息
    protected $schema = [
        'id'  =>'bigint',//
        'kdt_id'  =>'bigint',//
        'activity_type'  =>'bigint',//
        'alias'  =>'varchar',//
        'description'  =>'varchar',//
        'title'  =>'varchar',//
        'remark'  =>'varchar',//
        'start_time'  =>'datetime',//
        'end_time'  =>'datetime',//
        'created_at'  =>'datetime',//
        'status'  =>'tinyint',//
        'is_deleted'  =>'tinyint',//
       ];
}