The most impressive one I've seen is CGI::Application::Plugin::ValidateRM. It checks the input with Data::FormValidator and then redisplays the form with the errors and the input values refilled by HTML::FillInForm if it fails. Here's an example: 
# This is the run mode that will be validated. Notice that it accepts
# some errors to be passed in, and on to the template system.
sub form_display {
  my $self = shift;
  my $errs = shift;

  my $t = $self->load_tmpl('page.html');

  $t->param($errs) if $errs;
  return $t->output;
}

sub form_process {
  my $self = shift;
 
  use CGI::Application::Plugin::ValidateRM (qw/check_rm/);
  my ($results, $err_page) = $self->check_rm('form_display','_form_pro
+file');
  return $err_page if $err_page; 

  #..  do something with DFV $results object now
 
  my $t = $self->load_tmpl('success.html');
  return $t->output;

}
 
sub _form_profile {
  return {
    required => 'email',
    msgs => {
      any_errors => 'some_errors', 
      prefix     => 'err_',
    },
  };
}

[download]
The other that looks interesting is Rose-HTML-Objects.

In reply to Re: Form Processing modules by perrin
in thread Form Processing modules by zby

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