Sorry Massimo for mixing up my question. What I mean is, when there is
an error in validating a variable and response.flash is used it
returns an empty form with the error message. If possible I would like
to return the error message with a filled form like in validators
IS_IN_DB, etc.. Thanks again.

On 29 Set, 22:06, mdipierro <mdipie...@cs.depaul.edu> wrote:
> I do not understand. forms have fields with have validators which are
> executed automatically.
>
> If you have a variable "a" and you want to apply a validator to it you
> can
>
> (b,error)=IS_INT_IN_RANGE(0,100)(a)
>
> where (b, error) == (int(a), None) if a passes or (b, error)==
> (a,"error message") otherwise.
>
> On Sep 29, 3:51 am, ed <edbi...@rocketmail.com> wrote:
>
> > Hi,
> > Can i use error_message() in the Controller to validate field data? I
> > think i saw somewhere this process. Thanks
>
>
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