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15 lines
492 B
Python
15 lines
492 B
Python
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from __future__ import unicode_literals
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from django.db.models.signals import pre_delete
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from django.dispatch import receiver
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from .models import Device, VirtualChassis
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@receiver(pre_delete, sender=VirtualChassis)
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def clear_virtualchassis_members(instance, **kwargs):
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"""
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When a VirtualChassis is deleted, nullify the vc_position and vc_priority fields of its prior members.
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"""
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Device.objects.filter(virtual_chassis=instance.pk).update(vc_position=None, vc_priority=None)
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