#30118: Add support for filter arguments in queryset.exists() and
queryset.count()
-------------------------------------+-------------------------------------
Reporter: Sjoerd | Owner: nobody
Job Postmus |
Type: New | Status: new
feature |
Component: Database | Version: master
layer (models, ORM) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
Currently, both .exists() and .count() do not support any arguments.
I would very much enjoy being able to write
{{{
if SomeModel.objects.exists(field=value):
}}}
instead of
{{{
if SomeModel.objects.filter(field=value).exists():
}}}
and similarly for count.
Especially when the "search" part of the query is more complex, it would
allow one to write
{{{
number_of_superusers_in_group = User.objects.count(
is_superuser=True,
group=group,
)
}}}
which I find visually more appealing over
{{{
number_of_superusers_in_group = User.objects.filter(
is_superuser=True,
group=group,
).count()
}}}
because of the strange "method-call" on the last line.
As it seems fairly obvious to me, and also fairly simple to implement, I
suspect there might be something I'm missing as to why it's not a good
idea, and it might already have been documented, but I can not find it.
--
Ticket URL: <https://code.djangoproject.com/ticket/30118>
Django <https://code.djangoproject.com/>
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