HTML::FormFu::Constraint::Callback(3p)

NAME
HTML::FormFu::Constraint::Callback - Code Callback Constraint

VERSION
version 2.07

SYNOPSIS
    $field->constraint({
        type => 'Callback',
        callback => \&foo,
    });

    ---
    elements:
      - type: Text
        name: foo
        constraints:
          - type: Callback
            callback: "main::my_constraint"

    sub foo {
        my ( $value, $params ) = @_;

        # return true or false
    }

DESCRIPTION
The first argument passed to the callback is the submitted value for the associated field. 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.

METHODS

  callback
Arguments: \&code-reference

Arguments: "subroutine-name"

SEE ALSO
Is a sub-class of, and inherits methods from HTML::FormFu::Constraint

HTML::FormFu

AUTHOR
Carl Franks "cfranks@cpan.org"

LICENSE
This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR
Carl Franks <cpan@fireartist.com>

COPYRIGHT AND LICENSE
This software is copyright (c) 2018 by Carl Franks.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.