Случайный аватар при регистации

 
    public function __construct(){
 
        parent::__construct();
 
        $this->info['plugin']      = 'p_set_avatar';
        $this->info['title']       = 'Аватар по умолчанию';
        $this->info['description'] = 'Устанавливает случайный аватар при регистрации';
        $this->info['author']      = 'Pasha';
        $this->info['version']     = '1.0';
        $this->events[]            = 'USER_REGISTER';
 
    }
 
    public function execute($event = '', $user = array()){
 
        parent::execute();
 
        if($event == 'USER_REGISTER' && empty($user['imageurl'])){
            $filename = $this->buildAvatar();
            $this->inDB->query("UPDATE cms_user_profiles SET imageurl = '{$filename}' WHERE user_id = '{$user['user_id']}' LIMIT 1");
        }
 
        return $user;
 
    }