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                         'conds' => array( 'cat_pages > 0' ),
  48                 );
  49         }
  50
  51         function sortDescending() {
  52                 return true;
  53         }
  54
  55         /**
  56          * Fetch user page links and cache their existence
  57          *
  58          * @param DatabaseBase $db
  59          * @param ResultWrapper $res
  60          */
  61         function preprocessResults( $db, $res ) {
  62                 if ( !$res->numRows() ) {
  63                         return;
  64                 }
  65
  66                 $batch = new LinkBatch;
  67                 foreach ( $res as $row ) {
  68                         $batch->add( NS_CATEGORY, $row->title );
  69                 }
  70                 $batch->execute();
  71
  72                 // Back to start for display
  73                 $res->seek( 0 );
  74         }
  75
  76         /**
  77          * @param Skin $skin
  78          * @param object $result Result row
  79          * @return string
  80          */
  81         function formatResult( $skin, $result ) {
  82                 global $wgContLang;
  83
  84                 $nt = Title::makeTitleSafe( NS_CATEGORY, $result->title );
  85                 if ( !$nt ) {
  86                         return Html::element(
  87                                 'span',
  88                                 array( 'class' => 'mw-invalidtitle' ),
  89                                 Linker::getInvalidTitleDescription(
  90                                         $this->getContext(),
  91                                         NS_CATEGORY,
  92                                         $result->title )
  93                         );
  94                 }
  95
  96                 $text = $wgContLang->convert( $nt->getText() );
  97                 $plink = Linker::link( $nt, htmlspecialchars( $text ) );
  98                 $nlinks = $this->msg( 'nmembers' )->numParams( $result->value )->escaped();
  99
 100                 return $this->getLanguage()->specialList( $plink, $nlinks );
 101         }
 102
 103         protected function getGroupName() {
 104                 return 'highuse';
 105         }
 106 }