function process($parameters)
{
$bitcoinPay = new Bitcoinpay();
if (!$bitcoinPay->checkLogin()) {
$this->redirect('error');
}
$paymentId = false;
if (is_numeric($parameters[0])) {
$paymentId = $parameters[0];
} else {
$this->redirect('error');
}
//allow delete only for admin
$paymentUserId = $bitcoinPay->getPaymentUserId($paymentId);
if (!$bitcoinPay->checkIfIsAdminOfUser($_SESSION['id_user'], $paymentUserId)) {
$this->redirect('error');
}
//disable delete invoice, which is already payed
$fakturoid = new FakturoidWrapper();
$paymentFakturoidId = $fakturoid->getFakturoidInvoiceIdFromPaymentId($paymentId);
$fakturoid->cancelInvoice($paymentFakturoidId);
//TODO disable delete for already payed invoices
$result = $bitcoinPay->deletePayment($paymentId);
$this->messages[] = $result;
//navigate to default view for this action
$this->redirect('checkUsers');
}