project/app/user/model/AccountItem.php

<?php
namespace app\user\model;

class AccountItem extends Base
{
//设置字段信息
    protected $schema = [
        'id'       =>'bigint',//
        'account_id'       =>'bigint',//账户id
        'itemid'       =>'int',//部门id
        'position'       =>'tinyint',//职位,1普通,2负责人
        'addtime'       =>'datetime',//
        'updatetime'       =>'datetime',//

    ];
    protected $updateTime='updatetime';
    protected $createTime='addtime';
    protected $hidden=["id","addtime"];
    public function ItemName(){
        return $this->belongsTo(CompanyItem::class,"itemid")->bind(["depart_name"=>"name","depart_link"]);
    }
}