#30188: Aggregate annotation, Case() - When(): AssertionError No exception
message
supplied
-------------------------------------+-------------------------------------
Reporter: Lukas Klement | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 2.1
(models, ORM) |
Severity: Normal | Resolution:
Keywords: query, aggregate, | Triage Stage: Accepted
case/when |
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Can Sarıgöl):
* cc: Can Sarıgöl (added)
Comment:
Hi, actually I thought this sample is the same with below so the same
exception message might be ok. Besides, I will check the query.
{{{
ingredients = RecipeIngredient.objects.aggregate(
cost_missing = Coalesce(Sum(
Case(
When(ingredient__cost__isnull=False, then=Value(1)),
default=Value(0),
output_field=IntegerField())
), Value(0))
)
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/30188#comment:13>
Django <https://code.djangoproject.com/>
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