Tipsy\Db::query PHP Метод

    public function query($query, $args = null)
    {
        $stmt = $this->db()->prepare($query);
        if ($args) {
            $stmt->execute($args);
        } else {
            $stmt->execute();
        }
        return $stmt;
    }

 public function query($query, $args = [])
 {
     if (!$query) {
         throw new \Tipsy\Exception('Query is emtpy');
     }
     self::convert($query, $args);
     if (!$query) {
         throw new \Tipsy\Exception('mysqlToPgsql Query is emtpy');
     }
     return parent::query($query, $args);
 }