Re: confused about ModelForm Field validation

On 02/18/11 09:44, Roman Klesel wrote:
> [..] in some cases the values
> stored in the tables have to be converted before the can be displayed
> and also have to be converted bevore bein saved to the database.
> [...]

> def clean(self,value):
> "convert the literal value to the db representation"
> [...]

> On top of that, I feel like working against the ideas of whole validation thing.

I think you may consider it a hack

> Can someone suggest a better solution? Maybe an easier one. Or a more
> stable one? There are quite some fields where I have to do such
> conversions. I'm really trying to find a clean solution which is not
> just tricking the framework.

I would use pre_save signal for data modification

http://docs.djangoproject.com/en/dev/topics/signals/
http://docs.djangoproject.com/en/dev/ref/signals/#django.db.models.signals.pre_save

Piotr
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