id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
21467	get_object_or_404 on model instance raise ValueError	Vitaliy Yelnik	nobody	"{{{#!python
from django.shortcuts import get_object_or_404
from django.db.models.base import ModelBase
from django.contrib.contenttypes.models import ContentType

def test_get_object_or_404():
    # print ""True""
    print isinstance(ContentType, ModelBase)

    # print False
    print isinstance(ContentType(), ModelBase)

    # print ""<ContentType: content type>""
    print get_object_or_404(ContentType, id=1)

    # raise ValueError: Object is of type 'ContentType', but must be a Django Model, Manager, or QuerySet
    print get_object_or_404(ContentType(), id=1)
}}}

In Django 1.4 exception does not occur."	Uncategorized	closed	Utilities	1.5	Normal	wontfix			Unreviewed	0	0	0	0	0	0