screen/application/common/model/GoodsInstall.php

<?php

namespace app\common\model;

use think\Model;


class GoodsInstall extends Model
{
    protected $type=[
        'fee'=>'json',
    ];
    protected $autoWriteTimestamp=true;

    public function link(){
        return $this->hasMany(GoodsInstallLink::class);
    }
}