#25977: Allow different filters on multiple aggregates
-------------------------------------+-------------------------------------
Reporter: agronick | Owner: nobody
Type: New feature | Status: new
Component: Database layer | Version: 1.9
(models, ORM) |
Severity: Normal | Resolution:
Keywords: QuerySet.extra | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by charettes):
Does the following [https://docs.djangoproject.com/en/1.9/ref/models
/conditional-expressions/#conditional-aggregation conditional aggregation]
works for you?
{{{#!python
from django.db.models import Case, When
annotate(
fail_count=Sum(Case(When(state='F', then=1),
output_field=IntegerField()),
good_count=Sum(Case(When(state='G', then=1),
output_field=IntegerField()),
)
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/25977#comment:3>
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