From ee02ffd2537b0f5d41d6bc3b379c747337e4e29d Mon Sep 17 00:00:00 2001
From: =?utf8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?=
 <avar@users.mediawiki.org>
Date: Fri, 21 Oct 2005 02:07:29 +0000
Subject: [PATCH] * A new special page to list wanted categories

---
 includes/QueryPage.php               |  1 +
 includes/SpecialPage.php             |  1 +
 includes/SpecialWantedcategories.php | 89 ++++++++++++++++++++++++++++
 languages/Language.php               |  1 +
 4 files changed, 92 insertions(+)
 create mode 100644 includes/SpecialWantedcategories.php

diff --git a/includes/QueryPage.php b/includes/QueryPage.php
index 7dc4740a79..28ca360d54 100644
--- a/includes/QueryPage.php
+++ b/includes/QueryPage.php
@@ -35,6 +35,7 @@ $wgQueryPages = array(
 	array( 'UncategorizedPagesPage',	'Uncategorizedpages'		),
 	array( 'UnusedCategoriesPage',		'Unusedcategories'		),
 	array( 'UnusedimagesPage',		'Unusedimages'			),
+	array( 'WantedCategoriesPage',		'Wantedcategories'		),
 	array( 'WantedPagesPage',		'Wantedpages'			),
 );
 wfRunHooks( 'wgQueryPages', array( &$wgQueryPages ) );
diff --git a/includes/SpecialPage.php b/includes/SpecialPage.php
index 02709dea77..833dd92d6c 100644
--- a/includes/SpecialPage.php
+++ b/includes/SpecialPage.php
@@ -42,6 +42,7 @@ $wgSpecialPages = array(
 	'Unusedcategories'	=> new SpecialPage( 'Unusedcategories' ),
 	'Unusedimages'      => new SpecialPage( 'Unusedimages' ),
 	'Wantedpages'	=> new IncludableSpecialPage( 'Wantedpages' ),
+	'Wantedcategories' => new SpecialPage( 'Wantedcategories' ),
 	'Mostlinked'	=> new SpecialPage( 'Mostlinked' ),
 	'Mostcategories' => new SpecialPage( 'Mostcategories' ),
 	'Mostimages' => new SpecialPage( 'Mostimages' ),
diff --git a/includes/SpecialWantedcategories.php b/includes/SpecialWantedcategories.php
new file mode 100644
index 0000000000..a78fb08d17
--- /dev/null
+++ b/includes/SpecialWantedcategories.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * A querypage to list the most wanted categories
+ *
+ * @package MediaWiki
+ * @subpackage SpecialPage
+ *
+ * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
+ * @copyright Copyright © 2005, Ævar Arnfjörð Bjarmason
+ * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
+ */
+
+/* */
+require_once 'QueryPage.php';
+
+/**
+ * @package MediaWiki
+ * @subpackage SpecialPage
+ */
+class WantedCategoriesPage extends QueryPage {
+
+	function getName() { return 'Wantedcategories'; }
+	function isExpensive() { return true; }
+	function isSyndicated() { return false; }
+
+	function getSQL() {
+		$dbr =& wfGetDB( DB_SLAVE );
+		extract( $dbr->tableNames( 'categorylinks', 'page' ) );
+		$name = $dbr->addQuotes( $this->getName() );
+		return
+			"
+			SELECT
+				$name as type,
+				" . NS_CATEGORY . " as namespace,
+				cl_to as title,
+				COUNT(*) as value
+			FROM $categorylinks
+			LEFT JOIN $page ON cl_to = page_title
+			WHERE page_len IS NULL
+			GROUP BY cl_to
+			";
+	}
+	
+	function sortDescending() { return true; }
+
+	/**
+	 * Fetch user page links and cache their existence
+	 */
+	function preprocessResults( &$db, &$res ) {
+		global $wgLinkCache;
+
+		$batch = new LinkBatch;
+		while ( $row = $db->fetchObject( $res ) )
+			$batch->addObj( Title::makeTitleSafe( NS_USER, $row->title ) );
+		$batch->execute( $wgLinkCache );
+
+		// Back to start for display
+		if ( $db->numRows( $res ) > 0 )
+			// If there are no rows we get an error seeking.
+			$db->dataSeek( $res, 0 );
+	}
+
+	function formatResult( $skin, $result ) {
+		global $wgContLang;
+
+		$nt = Title::makeTitle( $result->namespace, $result->title );
+		$text = $wgContLang->convert( $nt->getText() );
+		
+		$plink = $this->isCached() ?
+			$skin->makeLinkObj( $nt, htmlspecialchars( $text ) ) :
+			$skin->makeBrokenLink( $nt->getText(), $text );
+		
+		$nlinks = wfMsg( 'nlinks', $result->value );
+		return "$plink ($nlinks)";
+	}
+}
+
+/**
+ * constructor
+ */
+function wfSpecialWantedCategories() {
+	list( $limit, $offset ) = wfCheckLimits();
+
+	$wpp = new WantedCategoriesPage();
+
+	$wpp->doQuery( $offset, $limit );
+}
+
+?>
diff --git a/languages/Language.php b/languages/Language.php
index 7900c3acf6..436488618f 100644
--- a/languages/Language.php
+++ b/languages/Language.php
@@ -1138,6 +1138,7 @@ That comes to '''$5''' average edits per page, and '''$6''' views per edit.",
 'unusedimages'	=> 'Unused files',
 'popularpages'	=> 'Popular pages',
 'nviews'		=> '$1 views',
+'wantedcategories' => 'Wanted categories',
 'wantedpages'	=> 'Wanted pages',
 'mostlinked'	=> 'Most linked to pages',
 'mostcategories' => 'Most linked to categories',
-- 
2.20.1