1 files changed, 131 insertions, 0 deletions
diff --git a/www/wiki/includes/specials/SpecialWantedcategories.php b/www/wiki/includes/specials/SpecialWantedcategories.php
new file mode 100644
index 00000000..fc0c3123
--- /dev/null
+++ b/www/wiki/includes/specials/SpecialWantedcategories.php
@@ -0,0 +1,131 @@
+<?php
+/**
+ * Implements Special:Wantedcategories
+ *
+ * Copyright © 2005 Ævar Arnfjörð Bjarmason
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup SpecialPage
+ */
+
+/**
+ * A querypage to list the most wanted categories - implements Special:Wantedcategories
+ *
+ * @ingroup SpecialPage
+ */
+class WantedCategoriesPage extends WantedQueryPage {
+	private $currentCategoryCounts;
+
+	function __construct( $name = 'Wantedcategories' ) {
+		parent::__construct( $name );
+	}
+
+	function getQueryInfo() {
+		return [
+			'tables' => [ 'categorylinks', 'page' ],
+			'fields' => [
+				'namespace' => NS_CATEGORY,
+				'title' => 'cl_to',
+				'value' => 'COUNT(*)'
+			],
+			'conds' => [ 'page_title IS NULL' ],
+			'options' => [ 'GROUP BY' => 'cl_to' ],
+			'join_conds' => [ 'page' => [ 'LEFT JOIN',
+				[ 'page_title = cl_to',
+					'page_namespace' => NS_CATEGORY ] ] ]
+		];
+	}
+
+	function preprocessResults( $db, $res ) {
+		parent::preprocessResults( $db, $res );
+
+		$this->currentCategoryCounts = [];
+
+		if ( !$res->numRows() || !$this->isCached() ) {
+			return;
+		}
+
+		// Fetch (hopefully) up-to-date numbers of pages in each category.
+		// This should be fast enough as we limit the list to a reasonable length.
+
+		$allCategories = [];
+		foreach ( $res as $row ) {
+			$allCategories[] = $row->title;
+		}
+
+		$categoryRes = $db->select(
+			'category',
+			[ 'cat_title', 'cat_pages' ],
+			[ 'cat_title' => $allCategories ],
+			__METHOD__
+		);
+		foreach ( $categoryRes as $row ) {
+			$this->currentCategoryCounts[$row->cat_title] = intval( $row->cat_pages );
+		}
+
+		// Back to start for display
+		$res->seek( 0 );
+	}
+
+	/**
+	 * @param Skin $skin
+	 * @param object $result Result row
+	 * @return string
+	 */
+	function formatResult( $skin, $result ) {
+		global $wgContLang;
+
+		$nt = Title::makeTitle( $result->namespace, $result->title );
+		$text = $wgContLang->convert( $nt->getText() );
+
+		if ( !$this->isCached() ) {
+			// We can assume the freshest data
+			$plink = $this->getLinkRenderer()->makeBrokenLink(
+				$nt,
+				$text
+			);
+			$nlinks = $this->msg( 'nmembers' )->numParams( $result->value )->escaped();
+		} else {
+			$plink = $this->getLinkRenderer()->makeLink( $nt, $text );
+
+			$currentValue = isset( $this->currentCategoryCounts[$result->title] )
+				? $this->currentCategoryCounts[$result->title]
+				: 0;
+			$cachedValue = intval( $result->value ); // T76910
+
+			// If the category has been created or emptied since the list was refreshed, strike it
+			if ( $nt->isKnown() || $currentValue === 0 ) {
+				$plink = "<del>$plink</del>";
+			}
+
+			// Show the current number of category entries if it changed
+			if ( $currentValue !== $cachedValue ) {
+				$nlinks = $this->msg( 'nmemberschanged' )
+					->numParams( $cachedValue, $currentValue )->escaped();
+			} else {
+				$nlinks = $this->msg( 'nmembers' )->numParams( $cachedValue )->escaped();
+			}
+		}
+
+		return $this->getLanguage()->specialList( $plink, $nlinks );
+	}
+
+	protected function getGroupName() {
+		return 'maintenance';
+	}
+}