From 19904b58515fd6ee968c85e5f89101c2ed54eff4 Mon Sep 17 00:00:00 2001
From: Platonides <platonides@users.mediawiki.org>
Date: Sun, 10 Oct 2010 14:11:25 +0000
Subject: [PATCH] Use wfMemcKey instead of manually building the memcache key.
 Not only is this more elegant, the former had collisions on wikis with
 different prefixes.

---
 CategoryTreeFunctions.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CategoryTreeFunctions.php b/CategoryTreeFunctions.php
index 2b0e1e55..039d4abe 100644
--- a/CategoryTreeFunctions.php
+++ b/CategoryTreeFunctions.php
@@ -298,7 +298,7 @@ class CategoryTree {
 	* load CategoryTreeFunctions.php on demand.
 	*/
 	function ajax( $category, $depth = 1 ) {
-		global $wgDBname, $wgUser;
+		global $wgUser;
 		$title = self::makeTitle( $category );
 
 		if ( ! $title ) {
@@ -317,7 +317,7 @@ class CategoryTree {
 				'page_title' => $dbkey,
 			), __METHOD__ );
 
-		$mckey = "$wgDBname:categorytree(" . $this->getOptionsAsCacheKey( $depth ) . "):$dbkey:$configkey";
+		$mckey = wfMemcKey( "categorytree(" . $this->getOptionsAsCacheKey( $depth ) . ")", $dbkey, $configkey );
 
 		$response = new AjaxResponse();