Merge "Remove a bunch of trailing spaces and unneeded newlines"

[lhc/web/wiklou.git] / includes / specials / SpecialListredirects.php

diff --git a/includes/specials/SpecialListredirects.php b/includes/specials/SpecialListredirects.php
index 84df0f6..f4acd64 100644 (file)
--- a/includes/specials/SpecialListredirects.php
+++ b/includes/specials/SpecialListredirects.php
@@ -2,6 +2,8 @@
 /**
  * Implements Special:Listredirects
  *
+ * Copyright © 2006 Rob Church
+ *
  * 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
@@ -20,8 +22,6 @@
  * @file
  * @ingroup SpecialPage
  * @author Rob Church <robchur@gmail.com>
- * @copyright © 2006 Rob Church
- * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  */
 
 /**
@@ -30,25 +30,84 @@
  */
 class ListredirectsPage extends QueryPage {
 
-       function getName() { return( 'Listredirects' ); }
-       function isExpensive() { return( true ); }
-       function isSyndicated() { return( false ); }
-       function sortDescending() { return( false ); }
+       function __construct( $name = 'Listredirects' ) {
+               parent::__construct( $name );
+       }
 
-       function getSQL() {
-               $dbr = wfGetDB( DB_SLAVE );
-               $page = $dbr->tableName( 'page' );
-               $sql = "SELECT 'Listredirects' AS type, page_title AS title, page_namespace AS namespace, 
-                       0 AS value FROM $page WHERE page_is_redirect = 1";
-               return( $sql );
+       function isExpensive() {
+               return true;
        }
 
-       function formatResult( $skin, $result ) {
-               global $wgContLang;
+       function isSyndicated() {
+               return false;
+       }
+
+       function sortDescending() {
+               return false;
+       }
 
+       function getQueryInfo() {
+               return array(
+                       'tables' => array( 'p1' => 'page', 'redirect', 'p2' => 'page' ),
+                       'fields' => array( 'namespace' => 'p1.page_namespace',
+                                       'title' => 'p1.page_title',
+                                       'value' => 'p1.page_title',
+                                       'rd_namespace',
+                                       'rd_title',
+                                       'rd_fragment',
+                                       'rd_interwiki',
+                                       'redirid' => 'p2.page_id' ),
+                       'conds' => array( 'p1.page_is_redirect' => 1 ),
+                       'join_conds' => array( 'redirect' => array(
+                                       'LEFT JOIN', 'rd_from=p1.page_id' ),
+                               'p2' => array( 'LEFT JOIN', array(
+                                       'p2.page_namespace=rd_namespace',
+                                       'p2.page_title=rd_title' ) ) )
+               );
+       }
+
+       function getOrderFields() {
+               return array ( 'p1.page_namespace', 'p1.page_title' );
+       }
+
+       /**
+        * Cache page existence for performance
+        *
+        * @param $db DatabaseBase
+        * @param $res ResultWrapper
+        */
+       function preprocessResults( $db, $res ) {
+               $batch = new LinkBatch;
+               foreach ( $res as $row ) {
+                       $batch->add( $row->namespace, $row->title );
+                       $batch->addObj( $this->getRedirectTarget( $row ) );
+               }
+               $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 );
+               }
+       }
+
+       protected function getRedirectTarget( $row ) {
+               if ( isset( $row->rd_title ) ) {
+                       return Title::makeTitle( $row->rd_namespace,
+                               $row->rd_title, $row->rd_fragment,
+                               $row->rd_interwiki
+                       );
+               } else {
+                       $title = Title::makeTitle( $row->namespace, $row->title );
+                       $article = WikiPage::factory( $title );
+                       return $article->getRedirectTarget();
+               }
+       }
+
+       function formatResult( $skin, $result ) {
                # Make a link to the redirect itself
                $rd_title = Title::makeTitle( $result->namespace, $result->title );
-               $rd_link = $skin->link(
+               $rd_link = Linker::link(
                        $rd_title,
                        null,
                        array(),
@@ -56,25 +115,15 @@ class ListredirectsPage extends QueryPage {
                );
 
                # Find out where the redirect leads
-               $revision = Revision::newFromTitle( $rd_title );
-               if( $revision ) {
+               $target = $this->getRedirectTarget( $result );
+               if( $target ) {
                        # Make a link to the destination page
-                       $target = Title::newFromRedirect( $revision->getText() );
-                       if( $target ) {
-                               $arr = $wgContLang->getArrow() . $wgContLang->getDirMark();
-                               $targetLink = $skin->link( $target );
-                               return "$rd_link $arr $targetLink";
-                       } else {
-                               return "<del>$rd_link</del>";
-                       }
+                       $lang = $this->getLanguage();
+                       $arr = $lang->getArrow() . $lang->getDirMark();
+                       $targetLink = Linker::link( $target );
+                       return "$rd_link $arr $targetLink";
                } else {
                        return "<del>$rd_link</del>";
                }
        }
 }
-
-function wfSpecialListredirects() {
-       list( $limit, $offset ) = wfCheckLimits();
-       $lrp = new ListredirectsPage();
-       $lrp->doQuery( $offset, $limit );
-}