Re: [dfv] Altering data in D::FV::Results

[Mark S. <ma...@su...>]

On Wed, 06 Aug 2008 16:46:42 -0400
Michael Peters <mp...@pl...> wrote:

> Amelia Ireland wrote:
> 
> > I want the validator to automatically ignore invalid and missing  
> > fields for some query parameters and use the default instead. I've  
> > created a subclass with this functionality, but I don't know whether  
> > this is something that would be generally useful or not. 
> 
> Is it possible that you can do these things either before processing the 
> data and/or in your validator methods?
> 
>    # before validation
>    $query->param('can_be_missing' => $default)
>      unless defined $query->param('can_be_missing');
> 
>    # in your validate method
>    my $dfv = shift;
>    my $val = $dfv->get_current_constraint_value();
>    return $default if !defined $val;
>    # do my real validation

Or along the same lines, the profile could be modified or replaced in a given
case, so that the missing/invalid came out as expected.

   Mark