webgui/lib/WebGUI/Macro/RandomAssetProxy.pm

65 lines
1.7 KiB
Perl

package WebGUI::Macro::RandomAssetProxy;
#-------------------------------------------------------------------
# WebGUI is Copyright 2001-2006 Plain Black Corporation.
#-------------------------------------------------------------------
# Please read the legal notices (docs/legal.txt) and the license
# (docs/license.txt) that came with this distribution before using
# this software.
#-------------------------------------------------------------------
# http://www.plainblack.com info@plainblack.com
#-------------------------------------------------------------------
use strict;
use WebGUI::Asset;
use WebGUI::International;
=head1 NAME
Package WebGUI::Macro::RandomAssetProxy
=head1 DESCRIPTION
Macro for displaying a random asset.
=head2 process ( url )
=head3 url
The URL of an asset from the site. A random asset will be chosen
from among that asset's children. Error message will be returned
if no asset exists at that url, or if the asset has no children.
=cut
#-------------------------------------------------------------------
sub process {
my $session = shift;
my $url = shift;
my $i18n = WebGUI::International->new($session,'Macro_RandomAssetProxy');
my $asset = WebGUI::Asset->newByUrl($session, $url);
if (defined $asset) {
my $children = $asset->getLineage(["children"]);
#randomize;
srand;
my $randomAssetId = $children->[rand(scalar(@{$children}))];
my $randomAsset = WebGUI::Asset->newByDynamicClass($session,$randomAssetId);
if (defined $randomAsset) {
if ($randomAsset->canView) {
$randomAsset->toggleToolbar;
$randomAsset->prepareView;
return $randomAsset->view;
}
return undef;
} else {
return $i18n->get('childless');
}
} else {
return $i18n->get('invalid url');
}
}
1;