#27473: Allow using Extract() with DurationField
-------------------------------------+-------------------------------------
Reporter: Daniel Hahler | Owner: nobody
Type: New feature | Status: new
Component: Database layer | Version: 1.10
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Daniel Hahler):
Cool, working on a PR now.
I've noticed that with SQLite, the "Extract" for a DurationField appears
to return NULL/None always, e.g. with
`DTModel.objects.annotate(duration_s=Extract('duration', 'second'))`.
Should this throw some error instead? Would that be possible in `Extract`
already (so basically keeping the current behavior there for unsupported
backends)?
Or would it need some other special casing?
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Ticket URL: <https://code.djangoproject.com/ticket/27473#comment:2>
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