NAME
    Validation::Class::Domain - Data Validation for Hierarchical Data

VERSION
    version 0.000005

SYNOPSIS
        package MyApp::Person;

        use Validation::Class::Domain;

        field  'id' => {
            mixin      => [':str'],
            filters    => ['numeric'],
            max_length => 2,
        };

        field  'name' => {
            mixin      => [':str'],
            pattern    => qr/^[A-Za-z ]+$/,
            max_length => 20,
        };

        field  'rating' => {
            mixin      => [':str'],
            pattern    => qr/^\-?\d+$/,
        };

        field  'tag' => {
            mixin      => [':str'],
            pattern    => qr/^(?!evil)\w+/,
            max_length => 20,
        };

        domain 'person' => {
            'id'                             => 'id',
            'name'                           => 'name',
            'company.name'                   => 'name',
            'company.supervisor.name'        => 'name',
            'company.supervisor.rating.@.*'  => 'rating',
            'company.tags.@'                 => 'name'
        };

        package main;

        my $data = {
            "id"      => "1234-ABC",
            "name"    => "Anita Campbell-Green",
            "title"   => "Designer",
            "company" => {
                "name"       => "House of de Vil",
                "supervisor" => {
                    "name"   => "Cruella de Vil",
                    "rating" => [
                        {   "support"  => -9,
                            "guidance" => -9
                        }
                    ]
                },
                "tags" => [
                    "evil",
                    "cruelty",
                    "dogs"
                ]
            },
        };

        my $person = MyApp::Person->new;

        unless ($person->validate_domain(person => $data)) {
            warn $person->errors_to_string if $person->error_count;
        }

DESCRIPTION
    This module allows you to validate hierarchical structures using the
    Validation::Class framework. This is an experimental yet highly
    promising approach toward the consistent processing of nested
    structures. The current interface is not expected to change. This module
    was inspired by MooseX::Validation::Doctypes. Gone are the days of data
    submitted to an application in key/value form and especially in regards
    to the increasing demand for communication between applications,
    serializing and transmitting structured data over a network connection.

AUTHOR
    Al Newkirk <anewkirk@ana.io>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2013 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.