#25195: update_or_create doesn't understand F() operations
-------------------------------------+-------------------------------------
Reporter: Marc Tamlyn | Owner: nobody
Type: New feature | Status: new
Component: Database layer | Version: master
(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 Simon Charette):
Replying to [comment:2 Marc Parizeau]:
> How about the following?
>
> {{{
> Foo.objects.update_or_create(name='bar', defaults={'value':
Coalesce('value', 0) + 1})
> }}}
>
> where one could specify an explicit default?
We'd need to special case `Coalesce` in `update_or_create` for this to
work as references to columns are not allowed in `INSERT`s.
--
Ticket URL: <https://code.djangoproject.com/ticket/25195#comment:3>
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