Calling update() on EmptyQuerySet updates all rows in database

[Jens Ådne Rydland]

Came across an issue with EmptyQuerySet today, it seems it does not
behave correctly with regard to update(). (or that the documentation is
lacking, I suspect it's the former)

Assuming I have a model Foo of which I have say 42 stored instances in
the database, each with a CharacterField "bar".

If I do Foo.objects.none().count() I get the expected result 0.
However, Foo.objects.none().update(bar='baz') returns 42, and all 42
rows in the database have been updated.

This seems to be caused by EmptyQuerySet not overriding update(),
shouldn't this just return 0?

--
best regards, Jens Ådne Rydland

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[Jacob Kaplan-Moss-2]

On Tue, Nov 3, 2009 at 7:42 AM, Jens Ådne Rydland <jensadne@...> wrote:
> This seems to be caused by EmptyQuerySet not overriding update(),
> shouldn't this just return 0?

Yup, that's a bug. Can you please open a ticket so that we don't forget this?

Jacob

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