NAME
HTML::TagCloud::Sortable - A sortable HTML tag cloud
SYNOPSIS
my $cloud = HTML::TagCloud::Sortable->new;
# old HTML::TagCloud style
$cloud->add( 'foo', $url, 10 );
# new HTML::TagCloud::Sortable style
$cloud->add( { name => 'foo', url => $url, count => 10, bar => 'baz' } );
# old style
print $cloud->html( 4 );
# new style
print $cloud->html( { limit => 4, sort_field => 'count', sort_type => 'numeric' } );DESCRIPTION
HTML::TagCloud::Sortable is an API-compatible subclass of HTML::TagCloud. However, by using a different API, you can gain two features:
Store arbitrary data with your tags
Sort the tags by any stored field
METHODS
new( %options )
An overridden construtor. Takes the same arguments as HTML::TagCloud.
add( \%tagdata )
Adds the hashref of data to the list of tags. NB: Insertion order is maintained. At the minimum, you will need to supply name, url and count key-value pairs.
tags( \%options )
This method is used by html to get the relevant list of tags for display. Options include:
limit - uses the N most popular tags
sort_field - sort by this field
sort_order - 'asc' or 'desc'
sort_type - 'alpha' or 'numeric'
The default sort order is alphabetically by tag name. You can pass a sub reference to sort_field to do custom sorting. Example:
$cloud->html( { sort_field =>
sub { $_[ 1 ]->{ count } <=> $_[ 0 ]->{ count }; }
} );Passing undef to sort_field will maintain insertion order.
AUTHOR
Brian Cassidy <bricas@cpan.org>
COPYRIGHT AND LICENSE
Copyright 2007-2009 by Brian Cassidy
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.