1 files changed, 90 insertions, 0 deletions
diff --git a/includes/specials/SpecialWantedcategories.php b/includes/specials/SpecialWantedcategories.php
new file mode 100644
index 00000000..7497f9be
--- /dev/null
+++ b/includes/specials/SpecialWantedcategories.php
@@ -0,0 +1,90 @@
+<?php
+/**
+ * @file
+ * @ingroup SpecialPage
+ */
+
+/**
+ * A querypage to list the most wanted categories - implements Special:Wantedcategories
+ *
+ * @ingroup 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
+ */
+class WantedCategoriesPage extends QueryPage {
+
+	function getName() {
+		return 'Wantedcategories';
+	}
+
+	function isExpensive() {
+		return true;
+	}
+
+	function isSyndicated() {
+		return false;
+	}
+
+	function getSQL() {
+		$dbr = wfGetDB( DB_SLAVE );
+		list( $categorylinks, $page ) = $dbr->tableNamesN( '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 AND page_namespace = ". NS_CATEGORY ."
+			WHERE page_title IS NULL
+			GROUP BY cl_to
+			";
+	}
+
+	function sortDescending() { return true; }
+
+	/**
+	 * Fetch user page links and cache their existence
+	 */
+	function preprocessResults( $db, $res ) {
+		$batch = new LinkBatch;
+		while ( $row = $db->fetchObject( $res ) )
+			$batch->add( $row->namespace, $row->title );
+		$batch->execute();
+
+		// 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 $wgLang, $wgContLang;
+
+		$nt = Title::makeTitle( $result->namespace, $result->title );
+		$text = $wgContLang->convert( $nt->getText() );
+
+		$plink = $this->isCached() ?
+			$skin->makeLinkObj( $nt, htmlspecialchars( $text ) ) :
+			$skin->makeBrokenLinkObj( $nt, htmlspecialchars( $text ) );
+
+		$nlinks = wfMsgExt( 'nmembers', array( 'parsemag', 'escape'),
+			$wgLang->formatNum( $result->value ) );
+		return wfSpecialList($plink, $nlinks);
+	}
+}
+
+/**
+ * constructor
+ */
+function wfSpecialWantedCategories() {
+	list( $limit, $offset ) = wfCheckLimits();
+
+	$wpp = new WantedCategoriesPage();
+
+	$wpp->doQuery( $offset, $limit );
+}