128 lines
2.5 KiB
Plaintext
128 lines
2.5 KiB
Plaintext
# PODNAME: Moose::Cookbook::Basics::DateTime_ExtendingNonMooseParent
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# ABSTRACT: Extending a non-Moose parent class
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__END__
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=pod
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=encoding UTF-8
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=head1 NAME
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Moose::Cookbook::Basics::DateTime_ExtendingNonMooseParent - Extending a non-Moose parent class
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=head1 VERSION
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version 2.2207
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=head1 SYNOPSIS
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package My::DateTime;
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use Moose;
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use MooseX::NonMoose;
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use DateTime::Calendar::Mayan;
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extends qw( DateTime );
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has 'mayan_date' => (
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is => 'ro',
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isa => 'DateTime::Calendar::Mayan',
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init_arg => undef,
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lazy => 1,
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builder => '_build_mayan_date',
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clearer => '_clear_mayan_date',
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predicate => 'has_mayan_date',
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);
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after 'set' => sub {
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$_[0]->_clear_mayan_date;
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};
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sub _build_mayan_date {
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DateTime::Calendar::Mayan->from_object( object => $_[0] );
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}
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=head1 DESCRIPTION
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This recipe demonstrates how to use Moose to subclass a parent which
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is not Moose based. This recipe only works if the parent class uses a
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blessed hash reference for object instances. If your parent is doing
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something funkier, you should check out L<MooseX::NonMoose::InsideOut> and L<MooseX::InsideOut>.
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The meat of this recipe is contained in L<MooseX::NonMoose>, which does all
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the grunt work for you.
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=for testing-SETUP use Test::Needs {
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'DateTime' => '0',
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'DateTime::Calendar::Mayan' => '0',
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'MooseX::NonMoose' => '0.25',
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};
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=begin testing
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my $dt = My::DateTime->new( year => 1970, month => 2, day => 24 );
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can_ok( $dt, 'mayan_date' );
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isa_ok( $dt->mayan_date, 'DateTime::Calendar::Mayan' );
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is( $dt->mayan_date->date, '12.17.16.9.19', 'got expected mayan date' );
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$dt->set( year => 2009 );
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ok( ! $dt->has_mayan_date, 'mayan_date is cleared after call to ->set' );
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=end testing
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=head1 AUTHORS
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=over 4
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=item *
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Stevan Little <stevan@cpan.org>
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=item *
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Dave Rolsky <autarch@urth.org>
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=item *
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Jesse Luehrs <doy@cpan.org>
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=item *
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Shawn M Moore <sartak@cpan.org>
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=item *
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יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
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=item *
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Karen Etheridge <ether@cpan.org>
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=item *
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Florian Ragwitz <rafl@debian.org>
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=item *
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Hans Dieter Pearcey <hdp@cpan.org>
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=item *
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Chris Prather <chris@prather.org>
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=item *
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Matt S Trout <mstrout@cpan.org>
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=back
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=head1 COPYRIGHT AND LICENSE
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This software is copyright (c) 2006 by Infinity Interactive, Inc.
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This is free software; you can redistribute it and/or modify it under
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the same terms as the Perl 5 programming language system itself.
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=cut
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