Possible bug when filter per __month on a variable generated by annotate
p = Person.objects.annotate(
main_date=Case(
When(ok=True, then='date_a'),
default=F('date_b'),
output_field=DateField()
)
)
a = p.filter(main_date__month=9)
print(a)
IndexError at /
tuple index out of range
Traceback:
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/core/handlers/base.py"
in get_response
132. response = wrapped_callback(request, *
callback_args, **callback_kwargs)
File "/Users/zzzzz/projects/myapp/views.py" in persons
42. print(a):
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/db/models/query.py"
in __iter__
162. self._fetch_all()
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/db/models/query.py"
in _fetch_all
965. self._result_cache = list(self.iterator())
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/db/models/query.py"
in iterator
238. results = compiler.execute_sql()
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/db/models/sql/compiler.py"
in execute_sql
840. cursor.execute(sql, params)
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/db/backends/utils.py"
in execute
79. return super(CursorDebugWrapper, self).execute(sql, params
)
File
"/Users/zzzzz/.virtualenvs/dddd/lib/python3.4/site-packages/django/db/backends/utils.py"
in execute
64. return self.cursor.execute(sql, params)
Exception Type: IndexError at /
Exception Value: tuple index out of range
but when I use __range works
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