1HTML::FormFu::ConstrainUts:e:rCaClolnbtarcikb(u3t)ed PerHlTMDLo:c:uFmoernmtFaut:i:oCnonstraint::Callback(3)
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NAME

6       HTML::FormFu::Constraint::Callback - Code Callback Constraint
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VERSION

9       version 2.07
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SYNOPSIS

12           $field->constraint({
13               type => 'Callback',
14               callback => \&foo,
15           });
16
17           ---
18           elements:
19             - type: Text
20               name: foo
21               constraints:
22                 - type: Callback
23                   callback: "main::my_constraint"
24
25           sub foo {
26               my ( $value, $params ) = @_;
27
28               # return true or false
29           }
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DESCRIPTION

32       The first argument passed to the callback is the submitted value for
33       the associated field. The second argument passed to the callback is a
34       hashref of name/value pairs for all input fields.
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36       This constraint doesn't honour the not() value.
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METHODS

39   callback
40       Arguments: \&code-reference
41
42       Arguments: "subroutine-name"
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SEE ALSO

45       Is a sub-class of, and inherits methods from HTML::FormFu::Constraint
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47       HTML::FormFu
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AUTHOR

50       Carl Franks "cfranks@cpan.org"
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LICENSE

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

57       Carl Franks <cpan@fireartist.com>
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60       This software is copyright (c) 2018 by Carl Franks.
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62       This is free software; you can redistribute it and/or modify it under
63       the same terms as the Perl 5 programming language system itself.
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67perl v5.36.0                      2023-01-H2T0ML::FormFu::Constraint::Callback(3)
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