Re: Question about chained validators

Thanks Ian, I'll stay tuned.

Cheers,
  Andrea

On 20 Apr, 2009, at 17:51, Ian Bicking wrote:

> Huh, looking at the code I think there's a bug.  I'll look into it.
>
> On Sun, Apr 19, 2009 at 4:26 PM, Andrea Riciputi <[email protected] 
> > wrote:
> Hi all,
> I've noticed that a chained validator with validate_partial_form=True
> is called twice. The first time its .validate_partial() method is
> called (which in turn calls .validate_python()),
> then .validate_python() is called directly.
>
> The problem is that the second time the input has been already
> converted and the validators could fails (e.g. if the input string has
> been converted into a datetime object).
>
> Probably I haven't understood how to get this kind of validators to
> work properly. I usually define them like this:
>
> class Foo(FancyValidator):
>    validate_partial_form = True
>     messages = {
>             'message_key' : u"the message"
>             }
>
>     def validate_partial(self, values, state):
>         self.validate_python(values, state)
>
>     def validate_python(self, values, state):
>        ...actual validating code here...
>        ...raise Invalid in case...
>
> Can anyone explain me why I get this wrong?
>
> TIA,
>  Andrea
>
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> Ian Bicking  |  http://blog.ianbicking.org


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