X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2Fspecials%2FSpecialUnusedimages.php;h=6407de443e18b814562c254ebd6f9df875e0ee4c;hb=7533fc9b2093a9d12a32a578f00a6fe40c05a02a;hp=7827387e87fac59dbfbb82e940c3dbf6f75ed10a;hpb=f68b7bddb4e7593cfbb2750805ccb33b2b60c163;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/specials/SpecialUnusedimages.php b/includes/specials/SpecialUnusedimages.php
index 7827387e87..6407de443e 100644
--- a/includes/specials/SpecialUnusedimages.php
+++ b/includes/specials/SpecialUnusedimages.php
@@ -1,5 +1,6 @@
 <?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
@@ -15,64 +16,64 @@
  * 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
  */
 
 /**
- * implements Special:Unusedimages
+ * 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 getName() {
-		return 'Unusedimages';
+	function isExpensive() {
+		return true;
 	}
 
 	function sortDescending() {
 		return false;
 	}
-	function isSyndicated() { return false; }
 
-	function getSQL() {
-		global $wgCountCategorizedImagesAsUsed, $wgDBtype;
-		$dbr = wfGetDB( DB_SLAVE );
+	function isSyndicated() {
+		return false;
+	}
 
-		switch ($wgDBtype) {
-			case 'mysql': 
-				$epoch = 'UNIX_TIMESTAMP(img_timestamp)'; 
-				break;
-			case 'oracle': 
-				$epoch = '((trunc(img_timestamp) - to_date(\'19700101\',\'YYYYMMDD\')) * 86400)'; 
-				break;
-			case 'sqlite':
-				$epoch = 'img_timestamp';
-				break;
-			default:
-				$epoch = 'EXTRACT(epoch FROM img_timestamp)';
-		}
+	function getQueryInfo() {
+		global $wgCountCategorizedImagesAsUsed;
+		$retval = array (
+			'tables' => array ( 'image', 'imagelinks' ),
+			'fields' => array ( "'" . NS_FILE . "' AS namespace",
+					'img_name AS title',
+					'img_timestamp AS value',
+					'img_user', 'img_user_text',
+					'img_description' ),
+			'conds' => array ( 'il_to IS NULL' ),
+			'join_conds' => array ( 'imagelinks' => array (
+					'LEFT JOIN', 'il_to = img_name' ) )
+		);
 
 		if ( $wgCountCategorizedImagesAsUsed ) {
-			list( $page, $image, $imagelinks, $categorylinks ) = $dbr->tableNamesN( 'page', 'image', 'imagelinks', 'categorylinks' );
-
-			return "SELECT 'Unusedimages' as type, 6 as namespace, img_name as title, $epoch as value,
-						img_user, img_user_text,  img_description
-					FROM ((($page AS I LEFT JOIN $categorylinks AS L ON I.page_id = L.cl_from)
-						LEFT JOIN $imagelinks AS P ON I.page_title = P.il_to)
-						INNER JOIN $image AS G ON I.page_title = G.img_name)
-					WHERE I.page_namespace = ".NS_FILE." AND L.cl_from IS NULL AND P.il_to IS NULL";
-		} else {
-			list( $image, $imagelinks ) = $dbr->tableNamesN( 'image','imagelinks' );
-
-			return "SELECT 'Unusedimages' as type, 6 as namespace, img_name as title, $epoch as value,
-				img_user, img_user_text,  img_description
-				FROM $image LEFT JOIN $imagelinks ON img_name=il_to WHERE il_to IS NULL ";
+			// Order is significant
+			$retval['tables'] = array ( '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'] = array (
+					'LEFT JOIN', 'cl_from = page_id' );
+			$retval['join_conds']['imagelinks'] = array (
+					'LEFT JOIN', 'il_to = page_title' );
 		}
+		return $retval;
+	}
+
+	function usesTimestamps() {
+		return true;
 	}
 
 	function getPageHeader() {
@@ -80,13 +81,3 @@ class UnusedimagesPage extends ImageQueryPage {
 	}
 
 }
-
-/**
- * Entry point
- */
-function wfSpecialUnusedimages() {
-	list( $limit, $offset ) = wfCheckLimits();
-	$uip = new UnusedimagesPage();
-
-	return $uip->doQuery( $offset, $limit );
-}