On Thu, 2009-01-22 at 17:27 -0800, mrts wrote:
[....]
> A
> side note: the `instance` attribute is not used in validator functions
> and I can't see a clear use case for it, so it looks like it can be
> removed -- prove me wrong please (I do see obscure corner cases where
> it could be useful -- if one needs to distinguish between forms and
> models in custom validators or do gettatr('something', instance), but
> these should really be handled in clean() manually).
For models, the "instance" will the models "self" attribute. So that one
can do checks based on other information available on the model
instance. It's kind of the whole point behind the "model-aware" portion
of model-aware validation.
Asking that everything like that gets pushed to clean() is being
awkward. clean() is for multi-field validation, the individual
validators are for single field validation. That doesn't mean the latter
cannot use other information available on the form.
I'll try and make time to look at this, along with other recent work in
this area, over the weekend.
Malcolm
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