MediaWiki Categories

Help:Category http://meta.wikimedia.org/wiki/Help:Category

Extension:CategoryTree http://www.mediawiki.org/wiki/Extension:CategoryTree

Building a test category hierarchy 

For all those people that are new to wiki category concept and CategoryTree, like me, here is a *nix command line script to build a test category hierarchy for you (tested under Bash):

# category id
ctid=0

echo "[[Category:Test P$ctid]]" > "Category:Test P$((ctid+1))".txt
php maintenance/importTextFile.php !$

ctid=$((ctid+1))

Basically, you initial the category id variable and then, import the generated file into wiki, increase the category id variable, then loop the procedure to whatever depth you want.

documented on: 2007.04.19

Extension:CategoryTree http://www.mediawiki.org/wiki/Extension:CategoryTree

Installation 

To install the required files,

1. download the files from the SVN-source http://svn.wikimedia.org/svnroot/mediawiki/trunk/extensions/CategoryTree/

1. Copy the CategoryTree directory into the extensions folder of your MediaWiki installation.

   rsync -vuaC /svn/mediawiki/CategoryTree extensions/

2. Then add the following lines to your LocalSettings.php file (near the end):

   # Enable CategoryTree
   $wgUseAjax = true;
   require_once( 'extensions/CategoryTree/CategoryTree.php' );

documented on: 2007.04.18

http://article.gmane.org/gmane.org.wikimedia.mediawiki/10604

Newsgroups: gmane.org.wikimedia.mediawiki
Date: 2006-03-01

> Can category hierarchy be adjusted?

> ie, if I make a "toplevel" category, can I change it to a "sub category"
> sometime later?

You just have to change the category tags on the pages is all.

If you have

Page One -

and you have

Category: Baseball with a tag on the page called

You would then find that "Baseball" is a subcategory of "Sports".

If you wanted to change the order around, you would have to

change Page One to include

and changed Category: Sports to include

so then "Sports" would be a subcategory of "Baseball".

Michael Dorosh