mirror of
https://github.com/netbox-community/netbox.git
synced 2025-07-22 03:56:53 -06:00
27 lines
947 B
Python
27 lines
947 B
Python
from django.apps import apps
|
|
from django.contrib.contenttypes.models import ContentType
|
|
from django.db.utils import ProgrammingError
|
|
|
|
from utilities.querysets import RestrictedQuerySet
|
|
|
|
__all__ = (
|
|
'ObjectChangeQuerySet',
|
|
)
|
|
|
|
|
|
class ObjectChangeQuerySet(RestrictedQuerySet):
|
|
|
|
def valid_models(self):
|
|
# Exclude any change records which refer to an instance of a model that's no longer installed. This
|
|
# can happen when a plugin is removed but its data remains in the database, for example.
|
|
try:
|
|
content_types = ContentType.objects.get_for_models(*apps.get_models()).values()
|
|
except ProgrammingError:
|
|
# Handle the case where the database schema has not yet been initialized
|
|
content_types = ContentType.objects.none()
|
|
|
|
content_type_ids = set(
|
|
ct.pk for ct in content_types
|
|
)
|
|
return self.filter(changed_object_type_id__in=content_type_ids)
|