Validation::Class::Directive(3)

NAME
Validation::Class::Directive - Base Class for Validation Class Directives

VERSION
version 7.900056

SYNOPSIS
    package Validation::Class::Directive::CheckBlacklist;

    use base 'Validation::Class::Directive';

    use strict;
    use warnings;
    use Validation::Class::Util;
    use File::Slurp;

    has 'mixin'     => 0;
    has 'field'     => 1;
    has 'multi'     => 0;
    has 'message'   => '%s has been blacklisted';

    sub validate {

        my $self = shift;

        my ($proto, $field, $param) = @_;

        if (defined $field->{check_blacklist} && $param) {

            # is the parameter value blacklisted?
            my @blacklist = read_file('/blacklist.txt');

            $self->error if grep { $param =~ /^$_$/ } @blacklist;

        }

    }

    1;

... in your validation class:

    package MyApp::Person;

    use Validation::Class;

    field ip_address => {
        required        => 1,
        check_blacklist => 1
    };

    1;

... in your application:

    package main;

    use MyApp::Person;

    my $person = MyApp::Person->new(ip_address => '0.0.0.0');

    unless ($person->validates('ip_address')) {
        # handle validation error
    }

DESCRIPTION
You can extend Validation::Class by creating your own validation rules (directives). Validation::Class::Directive provides a base-class for you to use when creating new directive classes. Please see Validation::Class::Directives for a complete list of core directives.

AUTHOR
Al Newkirk <anewkirk@ana.io>

COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Al Newkirk.

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