#28010: Add support for SELECT...FOR UPDATE OF
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Reporter: Ran Benita | Owner: nobody
Type: New feature | Status: closed
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution: fixed
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Ran Benita):
Thanks for testing, Adam. I did not think of this scenario.
Please correct me of the following is incorrect:
Reverse OneToOne fields are nullable (might not exist on the other side),
and Django does not allow select_for_update on such fields (you get
"django.db.utils.NotSupportedError: FOR UPDATE cannot be applied to the
nullable side of an outer join"). Hence, including such a field in
`of=(...)` should not be allowed. In fact, in order to use
`select_for_update` at all on such a query, you must use `of=(...)`
*excluding* the reverse field, otherwise it will fail with the error
above.
--
Ticket URL: <https://code.djangoproject.com/ticket/28010#comment:8>
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