Clean reminders for calendar when deleting a subscription

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

Author: tcitworld

apps/dav/lib/AppInfo/Application.php

@@ -39,6 +39,7 @@
 use OCA\DAV\CalDAV\CalDavBackend;
 use OCA\DAV\CalDAV\CalendarManager;
 use OCA\DAV\CalDAV\CalendarProvider;
+use OCA\DAV\CalDAV\Reminder\Backend as ReminderBackend;
 use OCA\DAV\CalDAV\Reminder\NotificationProvider\AudioProvider;
 use OCA\DAV\CalDAV\Reminder\NotificationProvider\EmailProvider;
 use OCA\DAV\CalDAV\Reminder\NotificationProvider\PushProvider;
@@ -306,6 +307,9 @@ function (GenericEvent $event) use ($container, $serverContainer) {
 				/** @var CalDavBackend $calDavBackend */
 				$calDavBackend = $container->query(CalDavBackend::class);
 				$calDavBackend->purgeAllCachedEventsForSubscription($subscriptionData['id']);
+				/** @var ReminderBackend $calDavBackend */
+				$reminderBackend = $container->query(ReminderBackend::class);
+				$reminderBackend->cleanRemindersForCalendar($subscriptionData['id']);
 			}
 		);