MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / specials / SpecialUnusedimages.php

diff --git a/includes/specials/SpecialUnusedimages.php b/includes/specials/SpecialUnusedimages.php
index 091ec3a3dfd6326fd7a96c6aae98d7e111af61a8..9fcbf15f78116f17c1f9329c6bdcf8ff721046dc 100644 (file)
--- a/includes/specials/SpecialUnusedimages.php
+++ b/includes/specials/SpecialUnusedimages.php
@@ -27,55 +27,59 @@
  * @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;
-
-               $dbr = wfGetDB( DB_SLAVE );
+       function isSyndicated() {
+               return false;
+       }
 
-               $epoch = $dbr->unixTimestamp( 'img_timestamp' );
+       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 ( $wgCountCategorizedImagesAsUsed ) {
-                       list( $page, $image, $imagelinks, $categorylinks ) = $dbr->tableNamesN( 'page', 'image', 'imagelinks', 'categorylinks' );
+               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 "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 $retval;
+       }
 
-                       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 ";
-               }
+       function usesTimestamps() {
+               return true;
        }
 
        function getPageHeader() {
-               return wfMsgExt( 'unusedimagestext', array( 'parse' ) );
+               return $this->msg( 'unusedimagestext' )->parseAsBlock();
        }
 
-}
-
-/**
- * Entry point
- */
-function wfSpecialUnusedimages() {
-       list( $limit, $offset ) = wfCheckLimits();
-       $uip = new UnusedimagesPage();
-
-       return $uip->doQuery( $offset, $limit );
+       protected function getGroupName() {
+               return 'maintenance';
+       }
 }