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parent
0192e9a976
commit
7b159df942
@ -273,18 +273,17 @@ class BasicExpressionsTests(TestCase):
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def test_object_update_fk(self):
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# F expressions cannot be used to update attributes which are foreign
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# keys, or attributes which involve joins.
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def test():
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self.gmbh.point_of_contact = F('ceo')
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test_gmbh = Company.objects.get(pk=self.gmbh.pk)
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msg = 'F(ceo)": "Company.point_of_contact" must be a "Employee" instance.'
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with self.assertRaisesMessage(ValueError, msg):
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test()
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test_gmbh.point_of_contact = F('ceo')
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self.gmbh.point_of_contact = self.gmbh.ceo
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self.gmbh.save()
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self.gmbh.name = F('ceo__last_name')
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test_gmbh.point_of_contact = self.gmbh.ceo
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test_gmbh.save()
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test_gmbh.name = F('ceo__last_name')
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msg = 'Joined field references are not permitted in this query'
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with self.assertRaisesMessage(FieldError, msg):
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self.gmbh.save()
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test_gmbh.save()
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def test_object_update_unsaved_objects(self):
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# F expressions cannot be used to update attributes on objects which do
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