Nette\Database\Drivers\MySqlDriver::convertException PHP Method

    public function convertException(\PDOException $e)
    {
        $code = isset($e->errorInfo[1]) ? $e->errorInfo[1] : NULL;
        if (in_array($code, [1216, 1217, 1451, 1452, 1701], TRUE)) {
            return Nette\Database\ForeignKeyConstraintViolationException::from($e);
        } elseif (in_array($code, [1062, 1557, 1569, 1586], TRUE)) {
            return Nette\Database\UniqueConstraintViolationException::from($e);
        } elseif ($code >= 2001 && $code <= 2028) {
            return Nette\Database\ConnectionException::from($e);
        } elseif (in_array($code, [1048, 1121, 1138, 1171, 1252, 1263, 1566], TRUE)) {
            return Nette\Database\NotNullConstraintViolationException::from($e);
        } else {
            return Nette\Database\DriverException::from($e);
        }
    }