PERLER / HTML-FormFu-0.09003_01 / lib / HTML / FormFu / Constraint / Length.pm 

            

              
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package HTML::FormFu::Constraint::Length;
use Moose;
use MooseX::Aliases;
extends 'HTML::FormFu::Constraint';
has minimum => (
    is      => 'rw',
    alias   => 'min',
    traits  => ['Chained'],
);
has maximum => (
    is      => 'rw',
    alias   => 'max',
    traits  => ['Chained'],
);
sub constrain_value {
    my ( $self, $value ) = @_;
    return 1 if !defined $value || $value eq '';
    if ( defined( my $min = $self->minimum ) ) {
        return 0 if length $value < $min;
    }
    if ( defined( my $max = $self->maximum ) ) {
        return 0 if length $value > $max;
    }
    return 1;
}
sub _localize_args {
    my ($self) = @_;
    return $self->min, $self->max;
}
__PACKAGE__->meta->make_immutable;
1;
__END__
=head1 NAME
HTML::FormFu::Constraint::Length - Min/Max Length String Constraint
=head1 DESCRIPTION
Checks the input value meets both a minimum and maximum length.
This constraint doesn't honour the C<not()> value.
=head1 METHODS
=head2 minimum
=head2 min
The minimum input string length.
L</min> is an alias for L</minimum>.
=head2 maximum
=head2 max
The maximum input string length.
L</max> is an alias for L</maximum>.
=head1 SEE ALSO
Is a sub-class of, and inherits methods from L<HTML::FormFu::Constraint>
L<HTML::FormFu>
=head1 AUTHOR
Carl Franks C<cfranks@cpan.org>
=head1 LICENSE
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut