} } break; // Add payment // Add payment case 6: if ($model->addPayment($_POST)) { echo '1'; } else { echo '0'; } break; // Reservation grand total // Reservation grand total case 7: if ($grandTotal = $model->getReservationGrandTotalByReservationId($_POST['reservationId'])) { echo $grandTotal; } break; case 8: if ($grandTotal = $model->getReservationPaidByReservationId($_POST['reservationId'])) { echo '$ ' . $grandTotal; } else { echo '$ 0'; } break; case 9: if ($grandTotal = $model->getReservationUnpaidByReservationId($_POST['reservationId'])) { echo '$ ' . $grandTotal; } else { echo '$ 0';