pet/application/common/model/Like.php

<?php

namespace app\common\model;

use think\db\Query;
use think\Model;

/**
 * 短信验证码
 */
class Like Extends Model
{

    // 开启自动写入时间戳字段
    protected $autoWriteTimestamp = false;
    protected $append=['like'];

    public function like(){
        return $this->morphTo('like',[
            'info'=>Info::class
        ]);
    }
    public function scopeUser(Query $query,User $user){
        $query->where('user_id',$user['id']);
    }
    public function user(){
        return $this->belongsTo(User::class);
    }
    public function notification(){
        return $this->morphMany(Notification::class,'notice','like');
    }



































    protected static function init()
    {
        self::afterInsert(function (self $like){
            if($like->like instanceof Info){
                $like->like->setInc('like_count');
                if($like->user_id!=$like->like->user_id) {
                    Notification::create([
                        'notice_type'=>'like',
                        'notice_id'=>$like->id,
                        'title'=>"{$like->user->nickname}点赞了您发布的资讯",
                        'user_id'=>$like->like->user_id,
                        'from_user_id'=>$like->user_id,
                        'object'=>$like->like->toArray()
                    ]);
                }
            }
        });
        self::afterDelete(function (self $like){
            if($like->like instanceof Info){
                $like->like->setDec('like_count');
            }
        });
    }
}