Extension:CategoryIntersection

MediaWiki extensions manual - list

Release status: unknown
Implementation	Special page, Search, Data extraction
Description	Maintains a table with hash values for category intersections within a page to allow searching category intersections
Author(s)	Magnus ManskeTalk
License	GPL
Download	Download snapshot Subversion [Help] Browse source code View code changes
Hooks used LinksUpdate ArticleDelete LoadExtensionSchemaUpdates ParserTestTables
Check usage (experimental)

What can this extension do?

This template creates a special page - Special:CategoryIntersection. You put in a list of categories to this page (separated by newlines), and the extension returns the articles that are in all the categories listed. It stores hashes of what categories a page is in in a separate table in db to (I assume) make things efficient. Somewhat akin to the DynamicPageList extensions (but probably much more efficient).

Note this extension might not handle a single page being in a large number of categories very well.

Installation

To install this extension, do the following:

1. add the following to LocalSettings.php:

   require_once("$IP/extensions/CategoryIntersection/CategoryIntersection.php");
   

2. Run the update.php maintenance script
3. Run the refreshLinks.php maintenance script (Warning: This may take a long time if you have a lot of pages on your wiki. If you don't do this step, the extension will only find pages that had their categories added after the extension was installed)