From 5d87350cecdfe6c3dd93cced0173c47769d83790 Mon Sep 17 00:00:00 2001
From: umherirrender <umherirrender_de.wp@web.de>
Date: Sat, 16 Nov 2013 21:27:54 +0100
Subject: [PATCH] Show correct link color on cached result of
 Special:DeadendPages

Reaching this by doing a LinkBatch and than using
Linker::link instead of Linker::linkKnown.
This adds also the stub color to the link.

Bug: 56912
Change-Id: I516f95302546ccdf8d0fdc7101c2ff72daa5f2fb
---
 RELEASE-NOTES-1.23         |  1 +
 includes/PageQueryPage.php | 24 +++++++++++++++++++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/RELEASE-NOTES-1.23 b/RELEASE-NOTES-1.23
index d7c252a2db..c5791ba0fd 100644
--- a/RELEASE-NOTES-1.23
+++ b/RELEASE-NOTES-1.23
@@ -51,6 +51,7 @@ production.
   behavior of several other features where (bogus) section edit links will
   disappear, such as file description pages loaded via $wgUseInstantCommons or
   pages transcluded cross-wiki via $wgEnableScaryTranscluding.
+* (bug 56912) Show correct link color on cached result of Special:DeadendPages.
 
 === API changes in 1.23 ===
 * (bug 54884) action=parse&prop=categories now indicates hidden and missing
diff --git a/includes/PageQueryPage.php b/includes/PageQueryPage.php
index 61a535d668..02a883ab93 100644
--- a/includes/PageQueryPage.php
+++ b/includes/PageQueryPage.php
@@ -27,6 +27,28 @@
  * @ingroup SpecialPage
  */
 abstract class PageQueryPage extends QueryPage {
+	/**
+	 * Run a LinkBatch to pre-cache LinkCache information,
+	 * like page existence and information for stub color and redirect hints.
+	 * This should be done for live data and cached data.
+	 *
+	 * @param $db DatabaseBase connection
+	 * @param ResultWrapper $res
+	 */
+	public function preprocessResults( $db, $res ) {
+		if ( !$res->numRows() ) {
+			return;
+		}
+
+		$batch = new LinkBatch();
+		foreach ( $res as $row ) {
+			$batch->add( $row->namespace, $row->title );
+		}
+		$batch->execute();
+
+		$res->seek( 0 );
+	}
+
 	/**
 	 * Format the result as a simple link to the page
 	 *
@@ -41,7 +63,7 @@ abstract class PageQueryPage extends QueryPage {
 
 		if ( $title instanceof Title ) {
 			$text = $wgContLang->convert( $title->getPrefixedText() );
-			return Linker::linkKnown( $title, htmlspecialchars( $text ) );
+			return Linker::link( $title, htmlspecialchars( $text ) );
 		} else {
 			return Html::element( 'span', array( 'class' => 'mw-invalidtitle' ),
 				Linker::getInvalidTitleDescription( $this->getContext(), $row->namespace, $row->title ) );
-- 
2.20.1