added gitignore

public/bookingpanel.php

@@ -29,16 +29,23 @@ if (isset($_POST['idserviceordered'])) {
     $idserviceordered = $_POST['idserviceordered'];
 }
 
-// Recupera la data di scadenza dell'ordine
-$expiryQuery = "SELECT expireon FROM orderbook WHERE order_id = ?";
+// Recover the expiry date of the order linked to the booking being rescheduled
+$expiryQuery = "SELECT ob.expireon
+                FROM bookingclass bc
+                INNER JOIN orderbook ob ON bc.idorder = ob.idorderbook
+                WHERE bc.idbookingclass = ?";
+
 $stmt = $conn->prepare($expiryQuery);
 $stmt->bind_param("i", $idpreviousbooking);
 $stmt->execute();
 $expiryResult = $stmt->get_result();
+
 $expiryDate = null;
 if ($expiryResult->num_rows > 0) {
     $row = $expiryResult->fetch_assoc();
-    $expiryDate = new DateTime($row['expireon']);
+    if (!empty($row['expireon'])) {
+        $expiryDate = new DateTime($row['expireon']);
+    }
 }
 
 $stmt->close();