includes/specials/SpecialMostlinkedcategories.php

   1 <?php
   2 /**
   3  * Implements Special:Mostlinkedcategories
   4  *
   5  * Copyright © 2005, Ævar Arnfjörð Bjarmason
   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 Ævar Arnfjörð Bjarmason <avarab@gmail.com>
  25  */
  26
  27 /**
  28  * A querypage to show categories ordered in descending order by the pages in them
  29  *
  30  * @ingroup SpecialPage
  31  */
  32 class MostlinkedCategoriesPage extends QueryPage {
  33         function __construct( $name = 'Mostlinkedcategories' ) {
  34                 parent::__construct( $name );
  35         }
  36
  37         function isSyndicated() {
  38                 return false;
  39         }
  40
  41         function getQueryInfo() {
  42                 return array(
  43                         'tables' => array( 'category' ),
  44                         'fields' => array( 'title' => 'cat_title',
  45                                 'namespace' => NS_CATEGORY,
  46                                 'value' => 'cat_pages' ),
  47                 );
  48         }
  49
  50         function sortDescending() {
  51                 return true;
  52         }
  53
  54         /**
  55          * Fetch user page links and cache their existence
  56          *
  57          * @param DatabaseBase $db
  58          * @param ResultWrapper $res
  59          */
  60         function preprocessResults( $db, $res ) {
  61                 if ( !$res->numRows() ) {
  62                         return;
  63                 }
  64
  65                 $batch = new LinkBatch;
  66                 foreach ( $res as $row ) {
  67                         $batch->add( NS_CATEGORY, $row->title );
  68                 }
  69                 $batch->execute();
  70
  71                 // Back to start for display
  72                 $res->seek( 0 );
  73         }
  74
  75         /**
  76          * @param Skin $skin
  77          * @param object $result Result row
  78          * @return string
  79          */
  80         function formatResult( $skin, $result ) {
  81                 global $wgContLang;
  82
  83                 $nt = Title::makeTitleSafe( NS_CATEGORY, $result->title );
  84                 if ( !$nt ) {
  85                         return Html::element(
  86                                 'span',
  87                                 array( 'class' => 'mw-invalidtitle' ),
  88                                 Linker::getInvalidTitleDescription(
  89                                         $this->getContext(),
  90                                         NS_CATEGORY,
  91                                         $result->title )
  92                         );
  93                 }
  94
  95                 $text = $wgContLang->convert( $nt->getText() );
  96                 $plink = Linker::link( $nt, htmlspecialchars( $text ) );
  97                 $nlinks = $this->msg( 'nmembers' )->numParams( $result->value )->escaped();
  98
  99                 return $this->getLanguage()->specialList( $plink, $nlinks );
 100         }
 101
 102         protected function getGroupName() {
 103                 return 'highuse';
 104         }
 105 }