includes/SpecialMostlinkedcategories.php

   1 <?php
   2 /**
   3  * A querypage to show categories ordered in descending order by the pages  in them
   4  *
   5  * @package MediaWiki
   6  * @subpackage SpecialPage
   7  *
   8  * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
   9  * @copyright Copyright © 2005, Ævar Arnfjörð Bjarmason
  10  * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  11  */
  12
  13 /* */
  14 require_once 'QueryPage.php';
  15
  16 /**
  17  * @package MediaWiki
  18  * @subpackage SpecialPage
  19  */
  20 class MostlinkedCategoriesPage extends QueryPage {
  21
  22         function getName() { return 'Mostlinkedcategories'; }
  23         function isExpensive() { return true; }
  24         function isSyndicated() { return false; }
  25
  26         function getSQL() {
  27                 $dbr =& wfGetDB( DB_SLAVE );
  28                 extract( $dbr->tableNames( 'categorylinks', 'page' ) );
  29                 $name = $dbr->addQuotes( $this->getName() );
  30                 return
  31                         "
  32                         SELECT
  33                                 $name as type,
  34                                 " . NS_CATEGORY . " as namespace,
  35                                 cl_to as title,
  36                                 COUNT(*) as value
  37                         FROM $categorylinks
  38                         GROUP BY cl_to
  39                         ";
  40         }
  41
  42         function sortDescending() { return true; }
  43
  44         /**
  45          * Fetch user page links and cache their existence
  46          */
  47         function preprocessResults( &$db, &$res ) {
  48                 global $wgLinkCache;
  49
  50                 $batch = new LinkBatch;
  51                 while ( $row = $db->fetchObject( $res ) )
  52                         $batch->addObj( Title::makeTitleSafe( NS_USER, $row->title ) );
  53                 $batch->execute( $wgLinkCache );
  54
  55                 // Back to start for display
  56                 if ( $db->numRows( $res ) > 0 )
  57                         // If there are no rows we get an error seeking.
  58                         $db->dataSeek( $res, 0 );
  59         }
  60
  61         function formatResult( $skin, $result ) {
  62                 global $wgContLang;
  63
  64                 $nt = Title::makeTitle( $result->namespace, $result->title );
  65                 $text = $wgContLang->convert( $nt->getText() );
  66
  67                 $plink = $skin->makeLinkObj( $nt, htmlspecialchars( $text ) );
  68
  69                 $nlinks = wfMsg( 'ncategories', $result->value );
  70                 return "$plink ($nlinks)";
  71         }
  72 }
  73
  74 /**
  75  * constructor
  76  */
  77 function wfSpecialMostlinkedCategories() {
  78         list( $limit, $offset ) = wfCheckLimits();
  79
  80         $wpp = new MostlinkedCategoriesPage();
  81
  82         $wpp->doQuery( $offset, $limit );
  83 }
  84
  85 ?>