#34024: 'WhereNode' object has no attribute 'is_summary' when counting a
queryset
with annotation from a subquery
-------------------------------------+-------------------------------------
Reporter: Valentin Rigal | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 4.1
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by David Sanders):
Here's a simple boiled down failing test case:
{{{
diff --git a/tests/queries/tests.py b/tests/queries/tests.py
index 1bd72dd8b8..c6d9b05761 100644
--- a/tests/queries/tests.py
+++ b/tests/queries/tests.py
@@ -1312,6 +1312,10 @@ class Queries1Tests(TestCase):
)
self.assertSequenceEqual(Note.objects.exclude(negate=True),
[self.n3])
+ def test_count_on_annotation(self):
+ # Ticket: #34024
+ Tag.objects.annotate(has_pk=~Q(pk=None)).count()
+
class Queries2Tests(TestCase):
@classmethod
}}}
results
{{{
E
======================================================================
ERROR: test_count_on_annotation (queries.tests.Queries1Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/davids/projects/django/tests/queries/tests.py", line 1317,
in test_count_on_annotation
Tag.objects.annotate(has_pk=~Q(pk=None)).count()
File "/Users/davids/projects/django/django/db/models/query.py", line
621, in count
return self.query.get_count(using=self.db)
File "/Users/davids/projects/django/django/db/models/sql/query.py", line
554, in get_count
return obj.get_aggregation(using, ["__count"])["__count"]
File "/Users/davids/projects/django/django/db/models/sql/query.py", line
503, in get_aggregation
if expression.is_summary:
AttributeError: 'WhereNode' object has no attribute 'is_summary'
----------------------------------------------------------------------
Ran 1 test in 0.014s
FAILED (errors=1)
Destroying test database for alias 'default'...
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/34024#comment:4>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/010701835fa5c2e8-f2f86569-2def-44f3-a19b-fc21a3052fe6-000000%40eu-central-1.amazonses.com.
