#12247: update on empty queryset in which the update kwargs refer to inherited
columns update all rows of base table
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Reporter: jsmullyan | Owner: matiasb
Status: assigned | Milestone: 1.2
Component: Database layer (models, ORM) | Version: 1.1
Resolution: | Keywords:
Stage: Accepted | Has_patch: 1
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Comment (by russellm):
@jkocherhans - add_filter(pk__in=[]) *is* a no-op (or rather, it raises
EmptyResultSet). The issue here is that the "if self.related_ids"
condition means that you *aren't* adding the [] filter, which means that
you are left with a default "update everything" filter. Changing the
condition to "if self.related_ids is None" means that the [] filter will
be added, and thereby shortcut the update into a no-op.
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Ticket URL: <http://code.djangoproject.com/ticket/12247#comment:9>
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