#34816: GenericForeignKey crashes if content_type_id is changed and object_id is
type incompatible with old object
-------------------------------------+-------------------------------------
Reporter: Richard Laager | Owner: nobody
Type: Uncategorized | Status: closed
Component: | Version: 4.2
contrib.contenttypes |
Severity: Normal | Resolution: invalid
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Mariusz Felisiak):
* status: new => closed
* has_patch: 1 => 0
* resolution: => invalid
Comment:
Thanks for this report, however, as far as I'm aware it's an issue in your
code:
{{{#!python
a.content_type_id = ContentType.objects.get_for_model(B)
a.object_id = "foo"
}}}
You should assign `id` to the `content_type_id`, not a content type
instance. Using:
{{{#!python
a.content_type_id = ContentType.objects.get_for_model(B).id
a.object_id = "foo"
}}}
or
{{{#!python
a.content_type = ContentType.objects.get_for_model(B)
a.object_id = "foo"
}}}
works for me.
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Ticket URL: <https://code.djangoproject.com/ticket/34816#comment:1>
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