beauti-nof/app/Observers/UserObserver.php

<?php

/*
 * +----------------------------------------------------------------------+
 * |                          ThinkSNS Plus                               |
 * +----------------------------------------------------------------------+
 * | Copyright (c) 2016-Present ZhiYiChuangXiang Technology Co., Ltd.     |
 * +----------------------------------------------------------------------+
 * | This source file is subject to enterprise private license, that is   |
 * | bundled with this package in the file LICENSE, and is available      |
 * | through the world-wide-web at the following url:                     |
 * | https://github.com/slimkit/plus/blob/master/LICENSE                  |
 * +----------------------------------------------------------------------+
 * | Author: Slim Kit Group <master@zhiyicx.com>                          |
 * | Homepage: www.thinksns.com                                           |
 * +----------------------------------------------------------------------+
 */

namespace Zhiyi\Plus\Observers;

use Illuminate\Http\Exceptions\HttpResponseException;
use Illuminate\Http\UploadedFile;
use Zhiyi\Plus\FileStorage\StorageInterface;
use Zhiyi\Plus\Http\Controllers\APIs\V2\FilesController;
use Zhiyi\Plus\Models\DdUser;
use Zhiyi\Plus\Models\User;
use Zhiyi\Plus\Models\Famous;
use Zhiyi\Plus\Support\Configuration;

class UserObserver
{
    /**
     * Handle the user "created" event.
     *
     * @param  User  $user
     *
     * @return void
     */
    public function created(User $user)
    {
        // 处理默认关注和默认相互关注
        $famous = Famous::query()->with('user')->get()
            ->groupBy('type');
        $famous
            ->map(function ($type, $key) use ($user) {
                $users = $type->filter(function ($famou) {
                    return $famou->user !== null;
                })->pluck('user');
                $user->followings()->attach($users->pluck('id'));
                // 相互关注
                if ($key === 'each') {
                    $users->map(function ($source) use ($user) {
                        $source->followings()->attach($user);
                    });
                }
            });
    }
    public function creating(User $user){
        $user->avatar=self::getDefaultAvatar();
    }
    public static function getDefaultAvatar(){
        $path=config('resource.def_avatar');
        if(!$path) {
            $source = resource_path('images/def_avatar.png');
            $file=new UploadedFile($source,'def_avatar.png');
            $filePath = now()->format('Y/m/d/Hi');
            $fileSavePath=$file->store($filePath,'public');
            $path=config('app.url').'/storage/'.$fileSavePath;
            app(Configuration::class)->set('resource.def_avatar',$path);
        }
        return $path;
    }
    public function updating(User $user){
        if($user->isDirty('name')){
            $exists=DdUser::query()->where('name',$user->name)->exists();
            if($exists){
                throw new HttpResponseException(response(['message'=>'用户名已被保留，不能使用'],422));
            }
        }
    }
}