feat(backend): Remove deleted user from all futur services

backend/flaschengeist_events/__init__.py

@@ -20,3 +20,4 @@ class EventPlugin(Plugin):
     def __init__(self, cfg):
         super(EventPlugin, self).__init__(cfg)
         from . import routes
+        from .event_controller import clear_services

backend/flaschengeist_events/event_controller.py

@@ -1,6 +1,7 @@
 from datetime import datetime, timedelta, timezone
 from enum import IntEnum
 from typing import Optional, Tuple
+from flaschengeist.models import UtcDateTime
 
 from werkzeug.exceptions import BadRequest, Conflict, NotFound
 from sqlalchemy.exc import IntegrityError
@@ -8,6 +9,7 @@ from sqlalchemy.orm.util import was_deleted
 
 from flaschengeist import logger
 from flaschengeist.database import db
+from flaschengeist.plugins import before_delete_user
 from flaschengeist.utils.scheduler import scheduled
 
 from . import EventPlugin
@@ -27,6 +29,19 @@ class NotifyType(IntEnum):
     INVITATION_REJECTED = 0x11
 
 
+@before_delete_user
+def clear_services(user):
+    """
+    This is called when an user got deleted so it cleans future services.
+    It removes the deleted user from all future events.
+    """
+    logger.debug(f"Clear deleted user {user.userid} from future events.")
+    _, jobs = get_jobs(user, UtcDateTime.current_utc())
+    for job in jobs:
+        job.services = list(filter(lambda s: s.user_ != user, job.services))
+    db.session.commit()
+
+
 def update():
     db.session.commit()