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  * @package MediaWiki
  15  * @subpackage SpecialPage
  16  */
  17 class MostlinkedCategoriesPage extends QueryPage {
  18
  19         function getName() { return 'Mostlinkedcategories'; }
  20         function isExpensive() { return true; }
  21         function isSyndicated() { return false; }
  22
  23         function getSQL() {
  24                 $dbr =& wfGetDB( DB_SLAVE );
  25                 extract( $dbr->tableNames( 'categorylinks', 'page' ) );
  26                 $name = $dbr->addQuotes( $this->getName() );
  27                 return
  28                         "
  29                         SELECT
  30                                 $name as type,
  31                                 " . NS_CATEGORY . " as namespace,
  32                                 cl_to as title,
  33                                 COUNT(*) as value
  34                         FROM $categorylinks
  35                         GROUP BY cl_to
  36                         ";
  37         }
  38
  39         function sortDescending() { return true; }
  40
  41         /**
  42          * Fetch user page links and cache their existence
  43          */
  44         function preprocessResults( &$db, &$res ) {
  45                 $batch = new LinkBatch;
  46                 while ( $row = $db->fetchObject( $res ) )
  47                         $batch->addObj( Title::makeTitleSafe( $row->namespace, $row->title ) );
  48                 $batch->execute();
  49
  50                 // Back to start for display
  51                 if ( $db->numRows( $res ) > 0 )
  52                         // If there are no rows we get an error seeking.
  53                         $db->dataSeek( $res, 0 );
  54         }
  55
  56         function formatResult( $skin, $result ) {
  57                 global $wgLang, $wgContLang;
  58
  59                 $nt = Title::makeTitle( $result->namespace, $result->title );
  60                 $text = $wgContLang->convert( $nt->getText() );
  61
  62                 $plink = $skin->makeLinkObj( $nt, htmlspecialchars( $text ) );
  63
  64                 $nlinks = wfMsgExt( 'nmembers', array( 'parsemag', 'escape'),
  65                         $wgLang->formatNum( $result->value ) );
  66                 return wfSpecialList($plink, $nlinks);
  67         }
  68 }
  69
  70 /**
  71  * constructor
  72  */
  73 function wfSpecialMostlinkedCategories() {
  74         list( $limit, $offset ) = wfCheckLimits();
  75
  76         $wpp = new MostlinkedCategoriesPage();
  77
  78         $wpp->doQuery( $offset, $limit );
  79 }
  80
  81 ?>