#30820: DateRange__contains does not work as filter
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Reporter: henhuy | Owner: (none)
Type: Bug | Status: new
Component: contrib.postgres | Version: 2.2
Severity: Normal | Resolution:
Keywords: postgres, | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by henhuy:
Old description:
> Having a model containing `django.contrib.postgres.fields.DateRangeField`
> I cannot `filter` the range by date using "contains", BUT I can `get` one
> object using "contains".
>
> Example (my original case, is different - but this should show the error
> as well):
>
> import datetime as dt
> from django import models
> from django.contrib.postgres.fields import DateRangeField
>
> class Period(models.Model):
> value = models.IntegerField()
> period = DateRangeField()
>
> date = dt.date(2017, 1, 1)
>
> # This works:
> period = Period.objects.get(period__contains=date)
>
> # This does not work:
> period = Period.objects.filter(period__contains=date).first()
>
> SQL-Query:
> SELECT "period"."id", "period"."value", "period"."period" FROM "period"
> WHERE "period"."period" @> (2017-01-01)::date
> SQL-Error (translated from german):
> FEHLER: Cannot transform Typ integer into date
>
> There should be ' around the date, then it would work:
> SELECT "period"."id", "period"."value", "period"."period" FROM "period"
> WHERE "period"."period" @> ('2017-01-01')::date
>
> Don't know why `get`works instead...
New description:
Having a model containing `django.contrib.postgres.fields.DateRangeField`
I cannot `filter` the range by date using "contains", BUT I can `get` one
object using "contains".
Example (my original case, is different - but this should show the error
as well):
{{{
import datetime as dt
from django import models
from django.contrib.postgres.fields import DateRangeField
class Period(models.Model):
value = models.IntegerField()
period = DateRangeField()
date = dt.date(2017, 1, 1)
# This works:
period = Period.objects.get(period__contains=date)
# This does not work:
period = Period.objects.filter(period__contains=date).first()
}}}
SQL-Query:
SELECT "period"."id", "period"."value", "period"."period" FROM "period"
WHERE "period"."period" @> (2017-01-01)::date
SQL-Error (translated from german):
FEHLER: Cannot transform Typ integer into date
There should be ' around the date, then it would work:
SELECT "period"."id", "period"."value", "period"."period" FROM "period"
WHERE "period"."period" @> ('2017-01-01')::date
Don't know why `get`works instead...
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Ticket URL: <https://code.djangoproject.com/ticket/30820#comment:1>
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