#17338: [nonrel] supports_deleting_related_objects database feature flag
-------------------------------------+-------------------------------------
Reporter: jonash | Owner: nobody
Type: New feature | Status: closed
Component: Database layer | Version: SVN
(models, ORM) | Resolution: wontfix
Severity: Normal | Triage Stage:
Keywords: nonrel | Unreviewed
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by carljm):
* status: new => closed
* needs_better_patch: => 0
* needs_tests: => 0
* type: Uncategorized => New feature
* needs_docs: => 0
* resolution: => wontfix
Comment:
This ticket doesn't make sense to me, as Django's related-object-deletion
code doesn't depend on any particular support from the backend, other than
the basic abilities to query for things and delete them. It is (sort of)
_emulating_ SQL cascading deletes, but it does so in a way that doesn't
assume anything at all from the backend.
It might make some sense to be able to mark backends according to whether
they support "related objects" (e.g. FKs) at all, and then skip related-
object-collection on deletion if not. Though I'm not sure even that would
be necessary - in the case of a backend not supporting related fields, I'd
presume that would be caught much earlier (like in model validation); at
the point of deletion, if the model has no related fields, the deletion
code won't try to collect any related objects anyway, no particular extra
check is needed.
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Ticket URL: <https://code.djangoproject.com/ticket/17338#comment:1>
Django <https://code.djangoproject.com/>
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