Aggregations add extra values to ValuesQuerySets :: another usecase

[richard@…]

Looking at #10132 I see a similar complaint, however, in this case... the extra.select variable is not included in the values/group_by but is annotated.

>>> qs = TblCdr.objects.extra(select={'billable':'IF(billsec=0,0,1)'},).values('network').annotate(Sum('billable')
... )
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/lib/python2.5/site-packages/django/db/models/query.py", line 580, in annotate
    is_summary=False)
  File "/usr/lib/python2.5/site-packages/django/db/models/sql/query.py", line 1471, in add_aggregate
    field_list, opts, self.get_initial_alias(), False)
  File "/usr/lib/python2.5/site-packages/django/db/models/sql/query.py", line 1737, in setup_joins
    "Choices are: %s" % (name, ", ".join(names)))
FieldError: Cannot resolve keyword 'billable' into field. Choices are: billsec, cause, cli, codec, country_code, dcontext, disposition, dst, duration, end, id, ip, lastapp, network, note, start, supplier

[fetzig]

don't know, but i think i have the same problem #13363. the exception is very similar.

is it complex to create a patch for this, or is it just something nobody did yet?

[anonymous]

Patching this would be very helpfull as, this feature would be usefull in clustering (geodjango)

e.objects.extra(select={'cluster':'substring(mortons_code for 10)'}).annotate(objects_in_cluster=Count('cluster')).order_by('objects_in_cluster')

same error:

FieldError: Cannot resolve keyword 'cluster' into field. Choices are:

.....

[Aymeric Augustin]

Change UI/UX from NULL to False.

[Aymeric Augustin]

Change Easy pickings from NULL to False.

[Tim Graham]

We are no longer fixing bugs with QuerySet.extra() per ​discussion on django-developers.