OrmConverter::buildConfig

private function buildConfig(string $configString): ?Config
{
	if (!$configString)
	{
		return null;
	}

	if (!CheckSerializedData($configString))
	{
		return null;
	}

	$result = new Config();

	$configArray = unserialize($configString, ['allowed_classes' => false]);
	foreach ($configArray as $configArrayItem)
	{
		$result->addItem(
			$this->convertArrayToConfigItem($configArrayItem)
		);
	}

	return $result;
}