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ade844f7a7
Mitgate invalidation issues by using prefetch_related instead of select_related. Also use invalidated_update instead of just update.
14 lines
501 B
Python
14 lines
501 B
Python
from django.db.models.signals import post_delete, post_save
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from django.dispatch import receiver
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from django.utils import timezone
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from .models import Circuit, CircuitTermination
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@receiver((post_save, post_delete), sender=CircuitTermination)
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def update_circuit(instance, **kwargs):
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"""
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When a CircuitTermination has been modified, update the last_updated time of its parent Circuit.
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"""
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Circuit.objects.filter(pk=instance.circuit_id).invalidated_update(last_updated=timezone.now())
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