#29321: when instance.delete() while cause memory leak
-----------------------------------------+------------------------
Reporter: yywing | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 2.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-----------------------------------------+------------------------
{{{
class A(models.Model):
xxxxxxx
class B(models.Model):
a = models.ForeignKey(A, on_delete=models.CASCADE)
xxxxx
class C(models.Model):
b = models.ForeignKey(B, on_delete=models.CASCADE)
xxxxxx
A.objects.first().delete()
}}}
When I delete an instance of A, if A has is related with many B and B is
related with many C, then it will cause memory leak.
And I found django on_delete has no effect at SQL level.
And I really want that when I delete A ,related B is deleted.
--
Ticket URL: <https://code.djangoproject.com/ticket/29321>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/049.33ed946f5754146a2506a054a9ef7c7f%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.
