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#!/usr/bin/perl
use strict;
use warnings;
use Test::More tests => 2;
use Test::Exception;
BEGIN {
use_ok('Moose');
}
## meta-attribute example
{
package MyApp::Meta::Attribute::Labeled;
use Moose;
extends 'Moose::Meta::Attribute';
has label => (
is => 'rw',
isa => 'Str',
predicate => 'has_label',
);
package Moose::Meta::Attribute::Custom::Labeled;
sub register_implementation { 'MyApp::Meta::Attribute::Labeled' }
package MyApp::Website;
use Moose;
has url => (
metaclass => 'Labeled',
isa => 'Str',
is => 'rw',
label => "The site's URL",
);
has name => (
is => 'rw',
isa => 'Str',
);
sub dump {
my $self = shift;
my $dump_value = '';
# iterate over all the attributes in $self
my %attributes = %{ $self->meta->get_attribute_map };
foreach my $name (sort keys %attributes) {
my $attribute = $attributes{$name};
# print the label if available
if ($attribute->isa('MyApp::Meta::Attribute::Labeled')
&& $attribute->has_label) {
$dump_value .= $attribute->label;
}
# otherwise print the name
else {
$dump_value .= $name;
}
# print the attribute's value
my $reader = $attribute->get_read_method;
$dump_value .= ": " . $self->$reader . "\n";
}
return $dump_value;
}
}
my $app = MyApp::Website->new(url => "http://google.com", name => "Google");
is($app->dump, q{name: Google
The site's URL: http://google.com
}, '... got the expected dump value');
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