includes/specials/SpecialListredirects.php

   1 <?php
   2 /**
   3  * Implements Special:Listredirects
   4  *
   5  * Copyright © 2006 Rob Church
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup SpecialPage
  24  * @author Rob Church <robchur@gmail.com>
  25  */
  26
  27 /**
  28  * Special:Listredirects - Lists all the redirects on the wiki.
  29  * @ingroup SpecialPage
  30  */
  31 class ListredirectsPage extends QueryPage {
  32
  33         function __construct( $name = 'Listredirects' ) {
  34                 parent::__construct( $name );
  35         }
  36
  37         function isExpensive() { return true; }
  38         function isSyndicated() { return false; }
  39         function sortDescending() { return false; }
  40
  41         function getQueryInfo() {
  42                 return array(
  43                         'tables' => array( 'p1' => 'page', 'redirect', 'p2' => 'page' ),
  44                         'fields' => array( 'p1.page_namespace AS namespace',
  45                                         'p1.page_title AS title',
  46                                         'rd_namespace',
  47                                         'rd_title',
  48                                         'p2.page_id AS redirid' ),
  49                         'conds' => array( 'p1.page_is_redirect' => 1 ),
  50                         'join_conds' => array( 'redirect' => array(
  51                                         'LEFT JOIN', 'rd_from=p1.page_id' ),
  52                                 'p2' => array( 'LEFT JOIN', array(
  53                                         'p2.page_namespace=rd_namespace',
  54                                         'p2.page_title=rd_title' ) ) )
  55                 );
  56         }
  57
  58         function getOrderFields() {
  59                 return array ( 'p1.page_namespace', 'p1.page_title' );
  60         }
  61
  62         function formatResult( $skin, $result ) {
  63                 global $wgContLang;
  64
  65                 # Make a link to the redirect itself
  66                 $rd_title = Title::makeTitle( $result->namespace, $result->title );
  67                 $rd_link = $skin->link(
  68                         $rd_title,
  69                         null,
  70                         array(),
  71                         array( 'redirect' => 'no' )
  72                 );
  73
  74                 # Find out where the redirect leads
  75                 $revision = Revision::newFromTitle( $rd_title );
  76                 if( $revision ) {
  77                         # Make a link to the destination page
  78                         $target = Title::newFromRedirect( $revision->getText() );
  79                         if( $target ) {
  80                                 $arr = $wgContLang->getArrow() . $wgContLang->getDirMark();
  81                                 $targetLink = $skin->link( $target );
  82                                 return "$rd_link $arr $targetLink";
  83                         } else {
  84                                 return "<del>$rd_link</del>";
  85                         }
  86                 } else {
  87                         return "<del>$rd_link</del>";
  88                 }
  89         }
  90 }