1 files changed, 85 insertions, 0 deletions
diff --git a/www/wiki/includes/specials/SpecialUnusedimages.php b/www/wiki/includes/specials/SpecialUnusedimages.php
new file mode 100644
index 00000000..9fcbf15f
--- /dev/null
+++ b/www/wiki/includes/specials/SpecialUnusedimages.php
@@ -0,0 +1,85 @@
+<?php
+/**
+ * Implements Special:Unusedimages
+ *
+ * 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 special page that lists unused images
+ *
+ * @ingroup SpecialPage
+ */
+class UnusedimagesPage extends ImageQueryPage {
+	function __construct( $name = 'Unusedimages' ) {
+		parent::__construct( $name );
+	}
+
+	function isExpensive() {
+		return true;
+	}
+
+	function sortDescending() {
+		return false;
+	}
+
+	function isSyndicated() {
+		return false;
+	}
+
+	function getQueryInfo() {
+		$retval = [
+			'tables' => [ 'image', 'imagelinks' ],
+			'fields' => [
+				'namespace' => NS_FILE,
+				'title' => 'img_name',
+				'value' => 'img_timestamp',
+			],
+			'conds' => [ 'il_to IS NULL' ],
+			'join_conds' => [ 'imagelinks' => [ 'LEFT JOIN', 'il_to = img_name' ] ]
+		];
+
+		if ( $this->getConfig()->get( 'CountCategorizedImagesAsUsed' ) ) {
+			// Order is significant
+			$retval['tables'] = [ 'image', 'page', 'categorylinks',
+				'imagelinks' ];
+			$retval['conds']['page_namespace'] = NS_FILE;
+			$retval['conds'][] = 'cl_from IS NULL';
+			$retval['conds'][] = 'img_name = page_title';
+			$retval['join_conds']['categorylinks'] = [
+				'LEFT JOIN', 'cl_from = page_id' ];
+			$retval['join_conds']['imagelinks'] = [
+				'LEFT JOIN', 'il_to = page_title' ];
+		}
+
+		return $retval;
+	}
+
+	function usesTimestamps() {
+		return true;
+	}
+
+	function getPageHeader() {
+		return $this->msg( 'unusedimagestext' )->parseAsBlock();
+	}
+
+	protected function getGroupName() {
+		return 'maintenance';
+	}
+}