NAME CGI::Wiki::Plugin::Categoriser - Category management for CGI::Wiki. DESCRIPTION Uses node metadata to build a model of how nodes are related to each other in terms of categories. SYNOPSIS use CGI::Wiki; use CGI::Wiki::Plugin::Categoriser; my $wiki = CGI::Wiki->new( ... ); $wiki->write_node( "Red Lion", "nice beer", $checksum, { category => [ "Pubs", "Pub Food" ] } ); $wiki->write_node( "Holborn Station", "busy at peak times", $checksum, { category => "Tube Station" } ); my $categoriser = CGI::Wiki::Plugin::Categoriser->new; $wiki->register_plugin( plugin => $categoriser ); my $isa_pub = $categoriser->in_category( category => "Pubs", node => "Red Lion" ); my @categories = $categoriser->categories( node => "Holborn Station" ); METHODS new my $categoriser = CGI::Wiki::Plugin::Categoriser->new; $wiki->register_plugin( plugin => $categoriser ); in_category my $isa_pub = $categoriser->in_category( category => "Pubs", node => "Red Lion" ); Returns true if the node is in the category, and false otherwise. Note that this is case-insensitive, so "Pubs" is the same category as "pubs". I might do something to make it plural-insensitive at some point too. subcategories $wiki->write_node( "Category Pub Food", "pubs that serve food", $checksum, { category => [ "Pubs", "Food", "Category" ] } ); my @subcategories = $categoriser->subcategories( category => "Pubs" ); # will return ( "Pub Food" ) # Or if you prefer CamelCase node names: $wiki->write_node( "CategoryPubFood", "pubs that serve food", $checksum, { category => [ "Pubs", "Food", "Category" ] } ); my @subcategories = $categoriser->subcategories( category => "Pubs" ); # will return ( "PubFood" ) To add a subcategory "Foo" to a given category "Bar", write a node called any one of "Foo", "Category Foo", or "CategoryFoo" with metadata indicating that it's in categories "Bar" and "Category". Yes, this pays specific attention to the Wiki convention of defining categories by prefacing the category name with "Category" and creating a node by that name. If different behaviour is required we should probably implement it using an optional argument in the constructor. categories my @categories = $categoriser->categories( node => "Holborn Station" ); Returns an array of category names in no particular order. SEE ALSO * CGI::Wiki * CGI::Wiki::Plugin AUTHOR Kake Pugh (kake@earth.li). COPYRIGHT Copyright (C) 2003 Kake Pugh. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. TODO Improve subcategories, do category hierarchy.