tubesync/app/sync/signals.py

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2020-12-06 01:22:16 +00:00
from django.conf import settings
from django.db.models.signals import post_save, post_delete
from django.dispatch import receiver
from .models import Source, Media
from .tasks import delete_index_source_task, index_source_task, download_media_thumbnail
@receiver(post_save, sender=Source)
def source_post_save(sender, instance, created, **kwargs):
# Triggered when a source is saved
if created:
# If the source is newly created schedule its indexing
index_source_task(str(instance.pk), repeat=settings.INDEX_SOURCE_EVERY)
@receiver(post_delete, sender=Source)
def source_post_delete(sender, instance, **kwargs):
# Triggered when a source is deleted
delete_index_source_task(str(instance.pk))
@receiver(post_save, sender=Media)
def media_post_save(sender, instance, created, **kwargs):
# Triggered when media is saved
if created:
# If the media is newly created fire a task off to download its thumbnail
metadata = instance.loaded_metadata
thumbnail_url = metadata.get('thumbnail', '')
if thumbnail_url:
download_media_thumbnail(str(instance.pk), thumbnail_url)
@receiver(post_delete, sender=Media)
def media_post_delete(sender, instance, **kwargs):
# Triggered when media is deleted
pass
# TODO: delete thumbnail and media file from disk