mirror of
https://github.com/more-tech4-magnum-opus/backend.git
synced 2024-11-25 04:33:44 +03:00
42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
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from django.core.files import File
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from django.db.models.signals import pre_save, post_delete, post_save
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from django.dispatch import receiver
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from utils.file import crop_image
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from utils.generators import generate_charset
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from .models import EventAttendance, Event
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@receiver(pre_save, sender=EventAttendance)
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def create_attendance(sender, instance, **kwargs):
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token = generate_charset(25)
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while EventAttendance.objects.filter(token=token).exists():
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token = generate_charset(25)
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instance.token = token
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instance.event.planning += 1
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instance.event.save(update_fileds=["planning"])
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@receiver(post_save, sender=Event)
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def process_event(sender, instance, created, **kwargs):
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if created:
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slug = generate_charset(5)
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while Event.objects.filter(slug=slug).exists():
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slug = generate_charset(5)
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instance.slug = slug
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instance.save(update_fields=["slug"])
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if instance.image and kwargs["update_fields"] is None:
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instance.image_cropped = File(
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crop_image(instance.image.path, cut_to=(250, 250)),
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name=instance.image.path.split(".")[0].split("/")[-1] + ".png",
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)
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instance.save(update_fields=["image_cropped"])
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@receiver(post_delete, sender=EventAttendance)
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def delete_attendance(sender, instance, **kwargs):
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instance.event.planning -= 1
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instance.event.save(update_fileds=["planning"])
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