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MediaWiki extensions manual
Crystal Clear action run.png

Release status: beta

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 Template:WikimediaDownload/svn
Hooks used


Translate the CategoryIntersection extension if it is available at translatewiki.net

Check usage and version matrix; code metrics

What can this extension do?[edit | edit source]

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

Installation[edit | edit source]

To install this extension, do the following:

  1. add the following to LocalSettings.phpManual:LocalSettings.php:
  2. Run the update.phpManual:update.php maintenance script
  3. Run the refreshLinks.phpManual:refreshLinks.php maintenance script. (Warning 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)

Deployment[edit | edit source]

Use this wiki mark-up code on the wiki page to view the results.

Examples[edit | edit source]

Some example wiki pages that use this extension include: (Feel free to insert your wiki page.)