[Html-widget] FormFu: Catalyst FormConfig + manual constraints

[Tobias Kremer]

I just started playing around with HTML::FormFu and I'm really liking
it up to now. However I haven't been able to use the FormConfig attribute
in my Catalyst controller to load the basics of a form _AND_ afterwards
add constraints manually. Here's my latest try:

sub signup : Local : FormConfig {
  my( $self, $c ) = @_;
  $c->stash->{ 'form' }->constraint( {
    type     => 'Callback',
    name     => 'captcha',
    callback => sub { return 0; # just to see if it's working }
  } ); # as documented in HTML::FormFu::Constraint::Callback's POD

  my $form = $c->stash->{ 'form' };
  if( $form->submitted_and_valid ) { .. }
}

The constraint is not added to the form loaded via Config::Any. Am
I doing something wrong? Or is it impossible to add constraints after
using FormConfig to prepare the form?

Thanks!

--Tobias

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