#25883: Admin Delete Page Incorrectly Counts Related Objects
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Reporter: jpulec | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.9
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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In the case where we're deleting an object (A) that has dependent foreign
object (B) that points to it, and a different dependent foreign object (C)
that also has B as a dependent foreign object, the admin will incorrectly
double count this object. As an example:
{{{
class Spam(models.Model):
pass
class Egg(models.Model):
spam = ForeignKey(Spam)
class Shrubbery(models.Model):
spam = ForeignKey(Spam)
egg = ForeignKey(Egg)
spam = Spam.objects.create()
egg = Egg.objects.create(spam=spam)
shrubbery = Shrubbery.objects.create(spam=spam, egg=egg)
}}}
If we issue a delete on an instance of Spam in this case, the admin will
state that we are deleting 2 instances of Shrubbery, even though we are
really only deleting 1 instance of Shrubbery that is attached both
directly to the instance of Spam, and to the instance of Egg that is a
dependent object of spam.
--
Ticket URL: <https://code.djangoproject.com/ticket/25883>
Django <https://code.djangoproject.com/>
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