OrderDiscountBase::loadOrderStoredDataFromDb

static function loadOrderStoredDataFromDb($order, $storageType)
{
	$result = null;

	$data = static::loadStoredDataFromDb(
		$order,
		$storageType,
		['=ENTITY_ID' => $order]
	);
	if ($data === null)
		return $result;
	if (count($data) > 1)
		return $result;
	if (isset($data[$order]))
		$result = $data[$order];
	unset($data);

	return $result;
}