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from django.db.models import Q
from django.test import TestCase
from .models import Issue, StringReferenceModel, User
class RelatedObjectTests(TestCase):
def test_related_objects_have_name_attribute(self):
for field_name in ("test_issue_client", "test_issue_cc"):
obj = User._meta.get_field(field_name)
self.assertEqual(field_name, obj.field.related_query_name())
def test_m2m_and_m2o(self):
r = User.objects.create(username="russell")
g = User.objects.create(username="gustav")
i1 = Issue(num=1)
i1.client = r
i1.save()
i2 = Issue(num=2)
i2.client = r
i2.save()
i2.cc.add(r)
i3 = Issue(num=3)
i3.client = g
i3.save()
i3.cc.add(r)
self.assertQuerySetEqual(
Issue.objects.filter(client=r.id),
[
1,
2,
],
lambda i: i.num,
)
self.assertQuerySetEqual(
Issue.objects.filter(client=g.id),
[
3,
],
lambda i: i.num,
)
self.assertQuerySetEqual(Issue.objects.filter(cc__id__exact=g.id), [])
self.assertQuerySetEqual(
Issue.objects.filter(cc__id__exact=r.id),
[
2,
3,
],
lambda i: i.num,
)
# These queries combine results from the m2m and the m2o relationships.
# They're three ways of saying the same thing.
self.assertQuerySetEqual(
Issue.objects.filter(Q(cc__id__exact=r.id) | Q(client=r.id)),
[
1,
2,
3,
],
lambda i: i.num,
)
self.assertQuerySetEqual(
Issue.objects.filter(cc__id__exact=r.id)
| Issue.objects.filter(client=r.id),
[
1,
2,
3,
],
lambda i: i.num,
)
self.assertQuerySetEqual(
Issue.objects.filter(Q(client=r.id) | Q(cc__id__exact=r.id)),
[
1,
2,
3,
],
lambda i: i.num,
)
class RelatedObjectUnicodeTests(TestCase):
def test_m2m_with_unicode_reference(self):
"""
Regression test for #6045: references to other models can be
strings, providing they are directly convertible to ASCII.
"""
m1 = StringReferenceModel.objects.create()
m2 = StringReferenceModel.objects.create()
m2.others.add(m1) # used to cause an error (see ticket #6045)
m2.save()
list(m2.others.all()) # Force retrieval.
|
