12 lines
418 B
Python
12 lines
418 B
Python
from django.db.models.signals import post_save
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from django.dispatch import receiver
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from core.apps.orders.models import Party
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@receiver(post_save, sender=Party)
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def set_party_number(sender, instance, created, **kwargs):
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if created:
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last_party = Party.objects.order_by('number').last()
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instance.number = (last_party.number + 1) if last_party else 1
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instance.save(update_fields=["number"]) |