Extension:GeoCrumbs

MediaWiki extensions manual

GeoCrumbs Release status: stable
Implementation	API
Description	Adds a trail of bread crumbs to the page
Author(s)	Roland Unger, Hans Musil, and Matthias Mullie
Latest version	2.0.1
MediaWiki	>= 1.43
PHP	5.4+
Database changes	No
License	GNU General Public License 2.0 or later
Download	Download extension Git [?]: Download Git master browse repository (Phabricator · GitHub) commit history repository contributors (GitHub) code review README
Hooks used OutputPageParserOutput ParserAfterTidy ParserFirstCallInit
Quarterly downloads	8 (Ranked 129th)
Translate the GeoCrumbs extension if it is available at translatewiki.net
Issues	Open tasks · Report a bug

The GeoCrumbs extension, formerly known as BreadCrumbs adds a trail of bread crumbs to the page. See https://en.wikivoyage.org/wiki/Wikivoyage:Breadcrumb_navigation or other Wikivoyage sites for more information.

Installation

• Download and move the extracted GeoCrumbs folder to your extensions/ directory.
  Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/GeoCrumbs
• Add the following code at the bottom of your LocalSettings.php file:

  wfLoadExtension( 'GeoCrumbs' );
  

•  Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

Usage

This extension provides a new MediaWiki parser function named "isin". It expects one argument, the name of the article where the current article "is in".

During parsing of the wiki markup, some few data related to the isin function's argument are generated and stored in the parser cache.

When the article is displayed, its HTML code has to be built from the parser cache. The BreadCrumbs extension has a method triggered by the 'OutputPageParserOutput' hook. Here, the complete bread crumb trail is build up by starting with the article's own isin and retrieving subsequently higher level isin data from the corresponding parser caches. The HTML code of the bread crumb trail is added to the page's subtitle.

Use of the isin keyword adds a breadcrumb trail under the title. Here shows the Vector 2022 skin.

Example:

{{#isin:Europe}}
The country of Spain is part of Europe.