/**
* Action Listener to determine if an order is applicable for refund
*/
public function canRefundAction()
{
$modelHelper = new Shopware_Plugins_Frontend_PaymPaymentCreditcard_Components_ModelHelper();
$orderId = $this->Request()->getParam("orderId");
$orderNumber = $modelHelper->getOrderNumberById($orderId);
$isTransaction = $modelHelper->getPaymillTransactionId($orderNumber) !== "";
$refundId = $modelHelper->getPaymillRefund($orderNumber);
$refundAvailableFlag = !$modelHelper->getPaymillCancelled($orderNumber);
$notCancelled = $refundId === "" && $refundAvailableFlag;
$success = $isTransaction && $notCancelled;
$this->View()->assign(array('success' => $success));
}
