forked from rc/aircox
0e183099ed
- !88 pytest on existing tests - !89 reorganise settings (! see notes for deployment) Co-authored-by: bkfox <thomas bkfox net> Reviewed-on: rc/aircox#92
104 lines
3.8 KiB
Python
Executable File
104 lines
3.8 KiB
Python
Executable File
from django.contrib.auth.models import Group, Permission, User
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from django.db import transaction
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from django.db.models import signals
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from django.dispatch import receiver
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from django.utils import timezone as tz
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from aircox import utils
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from aircox.conf import settings
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from . import Diffusion, Episode, Page, Program, Schedule
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# Add a default group to a user when it is created. It also assigns a list
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# of permissions to the group if it is created.
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#
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# - group name: settings.AIRCOX_DEFAULT_USER_GROUP
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# - group permissions: settings.AIRCOX_DEFAULT_USER_GROUP_PERMS
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#
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@receiver(signals.post_save, sender=User)
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def user_default_groups(sender, instance, created, *args, **kwargs):
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"""Set users to different default groups."""
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if not created or instance.is_superuser:
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return
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for group_name, permissions in settings.DEFAULT_USER_GROUPS.items():
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if instance.groups.filter(name=group_name).count():
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continue
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group, created = Group.objects.get_or_create(name=group_name)
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if created and permissions:
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for codename in permissions:
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permission = Permission.objects.filter(
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codename=codename
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).first()
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if permission:
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group.permissions.add(permission)
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group.save()
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instance.groups.add(group)
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@receiver(signals.post_save, sender=Page)
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def page_post_save(sender, instance, created, *args, **kwargs):
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if not created and instance.cover:
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Page.objects.filter(parent=instance, cover__isnull=True).update(
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cover=instance.cover
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)
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@receiver(signals.post_save, sender=Program)
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def program_post_save(sender, instance, created, *args, **kwargs):
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"""Clean-up later diffusions when a program becomes inactive."""
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if not instance.active:
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Diffusion.object.program(instance).after(tz.now()).delete()
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Episode.object.parent(instance).filter(diffusion__isnull=True).delete()
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cover = getattr(instance, "__initial_cover", None)
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if cover is None and instance.cover is not None:
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Episode.objects.parent(instance).filter(cover__isnull=True).update(
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cover=instance.cover
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)
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@receiver(signals.pre_save, sender=Schedule)
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def schedule_pre_save(sender, instance, *args, **kwargs):
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if getattr(instance, "pk") is not None:
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instance._initial = Schedule.objects.get(pk=instance.pk)
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@receiver(signals.post_save, sender=Schedule)
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def schedule_post_save(sender, instance, created, *args, **kwargs):
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"""Handles Schedule's time, duration and timezone changes and update
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corresponding diffusions accordingly."""
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initial = getattr(instance, "_initial", None)
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if not initial or (
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(instance.time, instance.duration, instance.timezone)
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== (initial.time, initial.duration, initial.timezone)
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):
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return
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today = tz.datetime.today()
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delta = instance.normalize(today) - initial.normalize(today)
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duration = utils.to_timedelta(instance.duration)
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with transaction.atomic():
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qs = Diffusion.objects.filter(schedule=instance).after(tz.now())
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for diffusion in qs:
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diffusion.start = diffusion.start + delta
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diffusion.end = diffusion.start + duration
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diffusion.save()
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@receiver(signals.pre_delete, sender=Schedule)
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def schedule_pre_delete(sender, instance, *args, **kwargs):
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"""Delete later corresponding diffusion to a changed schedule."""
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Diffusion.objects.filter(schedule=instance).after(tz.now()).delete()
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Episode.objects.filter(
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diffusion__isnull=True, content__isnull=True, sound__isnull=True
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).delete()
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@receiver(signals.post_delete, sender=Diffusion)
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def diffusion_post_delete(sender, instance, *args, **kwargs):
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Episode.objects.filter(
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diffusion__isnull=True, content__isnull=True, sound__isnull=True
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).delete()
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