static public function exists($params)
    {
        $query = self::none();
        
        if (ctype_digit((string)$params)) {
            $query->where(['id' => $params]);
        } else {
            if (is_array($params))
                $query->where('id IN (?)', $params);
            else
                $query->where('id IN (?)', func_get_args());
        }
        
        return $query->exists();
    }