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##############################################################################
# Copyright (c) 2016 Max Breitenfeldt and others.
# Copyright (c) 2018 Parker Berberian, Sawyer Bergeron, and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from celery import shared_task
from django.utils import timezone
from django.conf import settings
from booking.models import Booking
from notifier.models import Emailed
from notifier.manager import NotificationHandler
@shared_task
def notify_expiring():
"""Notify users if their booking is within 48 hours of expiring."""
expire_time = timezone.now() + timezone.timedelta(hours=settings.EXPIRE_HOURS)
# Don't email people about bookings that have started recently
start_time = timezone.now() - timezone.timedelta(hours=settings.EXPIRE_LIFETIME)
bookings = Booking.objects.filter(
end__lte=expire_time,
end__gte=timezone.now(),
start__lte=start_time
)
for booking in bookings:
if Emailed.objects.filter(almost_end_booking=booking).exists():
continue
NotificationHandler.notify_booking_expiring(booking)
Emailed.objects.create(almost_end_booking=booking)
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