/**
* 抛出异常
* @param string $message 异常信息
* @param string $code 异常代码
* @throws \Exception
*/
private function throwException($message = null, $code = null)
{
$errorInfo = $this->connection->errorInfo();
if (!empty($errorInfo)) {
if (empty($message)) {
$message = $errorInfo[2];
}
if (empty($code)) {
$code = $errorInfo[0];
}
}
throw new \Exception($message, $code, null);
}
