#33984: Related managers cache gets stale after saving a fetched model with new
PK
-------------------------------------+-------------------------------------
Reporter: joeli | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 4.1
(models, ORM) |
Severity: Release blocker | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Mariusz Felisiak):
Replying to [comment:8 Bhuvnesh]:
> Can anyone write a regression test for this one?
A regression test is already in
[https://docs.djangoproject.com/en/stable/topics/db/queries/#copying-
model-instances docs]:
{{{#!python
entry = Entry.objects.all()[0] # some previous entry
old_authors = entry.authors.all()
entry.pk = None
entry._state.adding = True
entry.save()
entry.authors.set(old_authors)
self.assertCountEqual(entry.authors.all(), [...])
}}}
Have you check previous comments?
--
Ticket URL: <https://code.djangoproject.com/ticket/33984#comment:9>
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