includes/specials/SpecialShortpages.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  */
   6
   7 /**
   8  * SpecialShortpages extends QueryPage. It is used to return the shortest
   9  * pages in the database.
  10  * @ingroup SpecialPage
  11  */
  12 class ShortPagesPage extends QueryPage {
  13
  14         function getName() {
  15                 return 'Shortpages';
  16         }
  17
  18         /**
  19          * This query is indexed as of 1.5
  20          */
  21         function isExpensive() {
  22                 return true;
  23         }
  24
  25         function isSyndicated() {
  26                 return false;
  27         }
  28
  29         function getSQL() {
  30                 global $wgContentNamespaces;
  31
  32                 $dbr = wfGetDB( DB_SLAVE );
  33                 $page = $dbr->tableName( 'page' );
  34                 $name = $dbr->addQuotes( $this->getName() );
  35
  36                 $forceindex = $dbr->useIndexClause("page_len");
  37
  38                 if ($wgContentNamespaces)
  39                         $nsclause = "page_namespace IN (" . $dbr->makeList($wgContentNamespaces) . ")";
  40                 else
  41                         $nsclause = "page_namespace = " . NS_MAIN;
  42
  43                 return
  44                         "SELECT $name as type,
  45                                 page_namespace as namespace,
  46                                 page_title as title,
  47                                 page_len AS value
  48                         FROM $page $forceindex
  49                         WHERE $nsclause AND page_is_redirect=0";
  50         }
  51
  52         function preprocessResults( $db, $res ) {
  53                 # There's no point doing a batch check if we aren't caching results;
  54                 # the page must exist for it to have been pulled out of the table
  55                 if( $this->isCached() ) {
  56                         $batch = new LinkBatch();
  57                         while( $row = $db->fetchObject( $res ) )
  58                                 $batch->add( $row->namespace, $row->title );
  59                         $batch->execute();
  60                         if( $db->numRows( $res ) > 0 )
  61                                 $db->dataSeek( $res, 0 );
  62                 }
  63         }
  64
  65         function sortDescending() {
  66                 return false;
  67         }
  68
  69         function formatResult( $skin, $result ) {
  70                 global $wgLang, $wgContLang;
  71                 $dm = $wgContLang->getDirMark();
  72
  73                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
  74                 if ( !$title ) {
  75                         return '<!-- Invalid title ' .  htmlspecialchars( "{$result->namespace}:{$result->title}" ). '-->';
  76                 }
  77                 $hlink = $skin->makeKnownLinkObj( $title, wfMsgHtml( 'hist' ), 'action=history' );
  78                 $plink = $this->isCached()
  79                                         ? $skin->makeLinkObj( $title )
  80                                         : $skin->makeKnownLinkObj( $title );
  81                 $size = wfMsgExt( 'nbytes', array( 'parsemag', 'escape' ), $wgLang->formatNum( htmlspecialchars( $result->value ) ) );
  82
  83                 return $title->exists()
  84                                 ? "({$hlink}) {$dm}{$plink} {$dm}[{$size}]"
  85                                 : "<s>({$hlink}) {$dm}{$plink} {$dm}[{$size}]</s>";
  86         }
  87 }
  88
  89 /**
  90  * constructor
  91  */
  92 function wfSpecialShortpages() {
  93         list( $limit, $offset ) = wfCheckLimits();
  94
  95         $spp = new ShortPagesPage();
  96
  97         return $spp->doQuery( $offset, $limit );
  98 }