#17186: Inverted F expression (negation)
-------------------------------------+-------------------------------------
Reporter: niwi | Owner: nobody
Type: New feature | Status: new
Component: Database layer | Version: SVN
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Design
Keywords: | decision needed
Has patch: 1 | Needs documentation: 1
Needs tests: 1 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by zsiciarz):
* stage: Accepted => Design decision needed
Comment:
I guess it's a DDN. Generally it is even possible to do something like
that in SQLite:
{{{
Company.objects.update(name=F("name") * F("name"))
}}}
And the name field after that is "0". This is rather a wider case, whether
the ORM should allow silly expressions like that, and not only negation of
non-booleans. It is completely DBMS-dependent and most "true" DB engines
will barf immediately.
--
Ticket URL: <https://code.djangoproject.com/ticket/17186#comment:11>
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