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Code Issues 32 Releases Wiki Activity

Fixed #30602 -- Made Extract raise ValueError when using unsupported lookups for DurationField.

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This commit is contained in:
Hasan Ramezani
2019-07-11 21:13:36 +02:00
committed by Mariusz Felisiak
parent 7a42cfcfdc
commit 402e6d292f
2 changed files with 15 additions and 0 deletions
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8
django/db/models/functions/datetime.py
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@@ -73,6 +73,14 @@ class Extract(TimezoneMixin, Transform):
raise ValueError(
"Cannot extract time component '%s' from DateField '%s'. " % (copy.lookup_name, field.name)
)
if (
isinstance(field, DurationField) and
copy.lookup_name in ('year', 'iso_year', 'month', 'week', 'week_day', 'quarter')
):
raise ValueError(
"Cannot extract component '%s' from DurationField '%s'."
% (copy.lookup_name, field.name)
)
return copy