63 lines
2.4 KiB
Python
63 lines
2.4 KiB
Python
from itertools import groupby
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from django.core.mail import send_mail
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from django.core.management.base import BaseCommand, CommandError
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from django.template import loader
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from tasks.models import Tool, Task, Event, GroupToolSubscription, GroupTaskSubscription
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class Command(BaseCommand):
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help = 'Sends any notifications for upcoming and overdue tasks'
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def _active_task_subscriptions(self):
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for subscription in GroupTaskSubscription.objects.all():
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if subscription.should_remind:
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yield subscription
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for tool_subscription in GroupToolSubscription.objects.all():
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for subscription in tool_subscription.get_task_subscriptions():
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if subscription.should_remind:
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yield subscription
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def _expand_group_subscriptions_to_users(self, subscriptions):
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out = {}
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for subscription in subscriptions:
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for user in subscription.group.user_set.all():
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if user not in out:
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out[user] = []
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out[user].append(subscription)
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return {
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user: sorted(subscriptions, key=lambda r: r.task.next_recurrence)
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for user, subscriptions in out.items()
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}
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def handle(self, *args, **options):
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template = loader.get_template('tasks/notificationEmail.txt.dtl')
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group_subscriptions = self._active_task_subscriptions()
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subscriptions_per_user = self._expand_group_subscriptions_to_users(group_subscriptions)
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for user, subscriptions in subscriptions_per_user.items():
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if not user.email:
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self.stdout.write(self.style.ERROR(
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f"Can't send email, user '{user}' is missing an email address"))
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continue
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self.stdout.write(self.style.SUCCESS(
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f'Sending notification for {len(subscriptions)} task(s) to {user}'))
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try:
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send_mail(
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subject=f'[CMS Tool Maintenance] {len(subscriptions)} tasks are upcoming or overdue!',
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message=template.render({'subscriptions': subscriptions}).strip(),
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from_email='adam@adamgoldsmith.name',
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recipient_list=[user.email],
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fail_silently=False
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)
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except Exception as e:
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self.stdout.write(self.style.ERROR(
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f"Failed to send mail for user '{user}': {type(e).__name__}: {e}"))
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