project/app/user/model/CompanyItem.php

<?php
namespace app\user\model;

use think\Model;
class CompanyItem extends Base
{
//设置字段信息
    protected $schema = [
        'id'       =>'bigint',//
        'companyNo'       =>'varchar',//所属企业
        'name'       =>'varchar',//部门/公司名称
        'pid'       =>'bigint',//父级id
        'level'       =>'bigint',//部门层级
        'weight'       =>'int',//排序权重
        'depart_link'       =>'varchar',//快速查询
        'is_del'       =>'int',//是否删除
        'addtime'       =>'datetime',//
        'updatetime'       =>'datetime',//
        'status'       =>'int',//状态 0禁用1启用

    ];
    protected $updateTime='updatetime';
    protected $createTime='addtime';
    public function companyInfo(){
    	return $this->belongsTo(Headquarters::class,"companyNo","code")->bind(["companyName"=>"name"]);
    }
    
    public function getDepartLinkAttr($v){
        return $this->where("id","in",array_filter(explode("-",$v)))->column("id,name");
    }
     public function SetDepartLinkAttr($v){
        return implode('-',$v);
    }
    public static function onAfterWrite(Model $model) : void{
		 $id =$model->id;
		 $depart = array_filter(array_column($model->depart_link,'id'));
		 if(!in_array($id,$depart)){
		 	array_push($depart,$id);
		    $model->depart_link = $depart;
		    $model->level = count($depart);
		    $model->save();
		 }
	}
}