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Fixed #28811 -- Fixed crash when combining regular and group by annotations.

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This commit is contained in:
Robin Ramael 2018-01-03 11:57:18 +01:00 committed by Tim Graham
parent 2cb6b7732d
commit fbf647287e
2 changed files with 19 additions and 1 deletions
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2
django/db/models/sql/query.py
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@ -1514,7 +1514,7 @@ class Query:
# that case we need to return a Ref to the subquery's annotation.
return Ref(name, self.annotation_select[name])
else:
return self.annotation_select[name]
return self.annotations[name]
else:
field_list = name.split(LOOKUP_SEP)
join_info = self.setup_joins(field_list, self.get_meta(), self.get_initial_alias(), can_reuse=reuse)

18
tests/annotations/tests.py
View File

@ -527,6 +527,24 @@ class NonAggregateAnnotationTestCase(TestCase):
self.assertIs(book.is_pony, False)
self.assertIsNone(book.is_none)
def test_annotation_in_f_grouped_by_annotation(self):
qs = (
Publisher.objects.annotate(multiplier=Value(3))
# group by option => sum of value * multiplier
.values('name')
.annotate(multiplied_value_sum=Sum(F('multiplier') * F('num_awards')))
.order_by()
)
self.assertCountEqual(
qs, [
{'multiplied_value_sum': 9, 'name': 'Apress'},
{'multiplied_value_sum': 0, 'name': "Jonno's House of Books"},
{'multiplied_value_sum': 27, 'name': 'Morgan Kaufmann'},
{'multiplied_value_sum': 21, 'name': 'Prentice Hall'},
{'multiplied_value_sum': 3, 'name': 'Sams'},
]
)
def test_arguments_must_be_expressions(self):
msg = 'QuerySet.annotate() received non-expression(s): %s.'
with self.assertRaisesMessage(TypeError, msg % BooleanField()):