sub respond_per_app{
  my $self = shift;

  # If we validate, go ahead with page-specific items.
  return 0 if $self->param($self->config_state_param) and $self->validate();

  # If we are here, something failed, so re-render ourselves.
  return $self;
}

##</code><code>##

sub validator_profile{

  # Set some app-wide values for the profile for Data::FormValidator.
  {
      validator_packages => [qw( My::Constraints )],
      msgs => { format => '%s',
                invalid_seperator => '!',
                constraints => \%My::constraint_msgs },
  };
}