HTML::FormFu::Constraint::CallbackOnce - Code Callback Constraint $form->constraint({ type => 'CallbackOnce', name => 'foo', callback => \&sfoo, ); sub foo { my ( $value, $params ) = @_; # return true or false } Unlinke the HTML::FormFu::Constraint::Callback, this callback is only called once, regardless of how many values are submitted. The first argument passed to the callback is the submitted value for the associated field; this may be a single value or an arrayref of value. The second argument passed to the callback is a hashref of name/value pairs for all input fields. This constraint doesn't honour the "not()" value.

callback
Arguments: \&sub_ref Is a sub-class of, and inherits methods from HTML::FormFu::Constraint HTML::FormFu Carl Franks "cfranks@cpan.org" This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.