From c3152e263618e585e7fc3b1d022017099ac1ac9e Mon Sep 17 00:00:00 2001
From: Philip Tzou <philip@users.mediawiki.org>
Date: Mon, 2 Feb 2009 14:15:21 +0000
Subject: [PATCH] (bug 3311) Automatic category redirects

---
 RELEASE-NOTES            | 1 +
 includes/LinksUpdate.php | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 603373a73e..1df6f30241 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -78,6 +78,7 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
   for a given title.
 * Styled #mw-data-after-content in cologneblue.css to match the rest of the font (bug 17110)
 * (bug 7556) Time zone names in signatures lack i18n
+* (bug 3311) Automatic category redirects
 
 === Bug fixes in 1.15 ===
 * (bug 16968) Special:Upload no longer throws useless warnings.
diff --git a/includes/LinksUpdate.php b/includes/LinksUpdate.php
index d0abf2f735..d3468f3d96 100644
--- a/includes/LinksUpdate.php
+++ b/includes/LinksUpdate.php
@@ -471,6 +471,14 @@ class LinksUpdate {
 		foreach ( $diffs as $name => $sortkey ) {
 			$nt = Title::makeTitleSafe( NS_CATEGORY, $name );
 			$wgContLang->findVariantLink( $name, $nt, true );
+			// for category redirection
+			if ( $nt->isRedirect() ) {
+				$at = new Article( $nt );
+				$nt = $at->getRedirectTarget();
+				// we only redirect a category to another category
+				if ( $nt->getNamespace() == NS_CATEGORY )
+					$name = $nt->getText();
+			}
 			$arr[] = array(
 				'cl_from'    => $this->mId,
 				'cl_to'      => $name,
-- 
2.20.1