[html-formfu] Asterisking labels of required fields

[Michele Beltrame]

Hi Georg!

I needed to do this as well. Since I define my forms via a Perl structure
and not via YAML, I have a function which scans all that structure doing
several things including adding asterisk. It's something in the line of:

-----
[Loop through all elments in form definition hash]

  # See if a field is required
  my ($required);
  if ( $element->{constraints} ) {
      for my $constraint ( @{$element->{constraints}} ) {
          if ( $constraint->{type} eq 'Required' ) { $required = 1 }
      }
  }

   # Prepend asterisk if we have a required field
   if ( $required ) {
      $element->{label} = '* ' . $element->{label};
   }
-----

If you want to do it on a already-created form, you'll need to take a
look at the INTROSPECTION section of HTML::FormFu documentation:

http://search.cpan.org/~cfranks/HTML-FormFu-0.02004/lib/HTML/FormFu.pm#INTROSPECTION

This will allow you to access elements, constraints, and likely to change
labels adding the asterisk.

Hope this helps!

Michele.

-- 
Michele Beltrame
http://www.cattlegrid.info/
ICQ 76660101 - MSN mb at italpro.net