blechreiz-website/eventplanner_gcal/signals.py

94 lines
2.5 KiB
Python

from django.db.models.signals import post_save,pre_delete
from django.dispatch import receiver
from eventplanner.models import Event, EventParticipation
from django.contrib.auth.models import User
import eventplanner_gcal.models
class SignalLock:
def __init__(self):
self.locked=False
def __enter__(self):
if self.locked:
return False
self.locked=True
return True
def __exit__(self, type, value, traceback):
self.locked=False
def isLocked(self):
return self.locked
signalLock = SignalLock()
@receiver( post_save, sender=User )
def user_changed( **kwargs ):
if not signalLock.isLocked():
with signalLock:
eventplanner_gcal.models.syncGCalEvents()
@receiver( post_save,sender= Event)
def event_post_save_handler( **kwargs):
if not signalLock.isLocked():
with signalLock:
event = kwargs['instance']
created = kwargs['created']
if created:
print("Creating Gcal event")
eventplanner_gcal.models.createGCalEvent( event ).execute()
else:
print( "Updating Gcal event")
eventplanner_gcal.models.updateGCalEvent( event ).execute()
@receiver( pre_delete,sender= Event)
def event_pre_delete_handler( **kwargs):
if not signalLock.isLocked():
with signalLock:
event = kwargs['instance']
print ("Deleting GCAL event")
eventplanner_gcal.models.deleteGCalEvent( event ).execute()
@receiver( post_save, sender=EventParticipation )
def participation_post_save_handler( **kwargs):
if not signalLock.isLocked():
with signalLock:
participation = kwargs['instance']
print("Participation post save -> update gcal")
eventplanner_gcal.models.updateGCalEvent( participation.event ).execute()
# -------------- For management commands ------------------------
def stopAllGCalSubscriptions():
if not signalLock.isLocked():
with signalLock:
eventplanner_gcal.models.stopAllGCalSubscriptions()
def checkGCalSubscription():
if not signalLock.isLocked():
with signalLock:
eventplanner_gcal.models.checkGCalSubscription()
def deleteAllGCalEvents():
if not signalLock.isLocked():
with signalLock:
eventplanner_gcal.models.deleteAllGCalEvents()
def syncGCalEvents():
if not signalLock.isLocked():
with signalLock:
eventplanner_gcal.models.syncGCalEvents()