xiangduilun/application/common/model/LikeMutually.php

<?php

namespace app\common\model;

use think\Model;

class LikeMutually extends Model
{
    public function user(){
        return $this->belongsTo('User','nid','id',[],'LEFT')->field('id,id_authentication,avatar,createtime,username');
    }

    public static function read($arr){
        foreach ($arr as $v){
            LikeMutually::update(['isread'=>1],['id'=>$v['id']]);
        }
    }

}