includes/specials/SpecialShortpages.php

   1 <?php
   2 /**
   3  * Implements Special:Shortpages
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * SpecialShortpages extends QueryPage. It is used to return the shortest
  26  * pages in the database.
  27  *
  28  * @ingroup SpecialPage
  29  */
  30 class ShortPagesPage extends QueryPage {
  31
  32         function __construct( $name = 'Shortpages' ) {
  33                 parent::__construct( $name );
  34         }
  35
  36         function isSyndicated() {
  37                 return false;
  38         }
  39
  40         function getQueryInfo() {
  41                 return array (
  42                         'tables' => array ( 'page' ),
  43                         'fields' => array ( 'page_namespace AS namespace',
  44                                         'page_title AS title',
  45                                         'page_len AS value' ),
  46                         'conds' => array ( 'page_namespace' =>
  47                                         MWNamespace::getContentNamespaces(),
  48                                         'page_is_redirect' => 0 ),
  49                         'options' => array ( 'USE INDEX' => 'page_redirect_namespace_len' )
  50                 );
  51         }
  52
  53         function getOrderFields() {
  54                 return array( 'page_len' );
  55         }
  56
  57         /**
  58          * @param $db DatabaseBase
  59          * @param $res
  60          * @return void
  61          */
  62         function preprocessResults( $db, $res ) {
  63                 # There's no point doing a batch check if we aren't caching results;
  64                 # the page must exist for it to have been pulled out of the table
  65                 if ( !$this->isCached() || !$res->numRows() ) {
  66                         return;
  67                 }
  68
  69                 $batch = new LinkBatch();
  70                 foreach ( $res as $row ) {
  71                         $batch->add( $row->namespace, $row->title );
  72                 }
  73                 $batch->execute();
  74
  75                 $res->seek( 0 );
  76         }
  77
  78         function sortDescending() {
  79                 return false;
  80         }
  81
  82         function formatResult( $skin, $result ) {
  83                 $dm = $this->getLanguage()->getDirMark();
  84
  85                 $title = Title::makeTitle( $result->namespace, $result->title );
  86
  87                 $hlink = Linker::linkKnown(
  88                         $title,
  89                         $this->msg( 'hist' )->escaped(),
  90                         array(),
  91                         array( 'action' => 'history' )
  92                 );
  93                 $hlinkInParentheses = $this->msg( 'parentheses' )->rawParams( $hlink )->escaped();
  94
  95                 if ( $this->isCached() ) {
  96                         $plink = Linker::link( $title );
  97                         $exists = $title->exists();
  98                 } else {
  99                         $plink = Linker::linkKnown( $title );
 100                         $exists = true;
 101                 }
 102
 103                 $size = $this->msg( 'nbytes' )->numParams( $result->value )->escaped();
 104
 105                 return $exists
 106                                 ? "${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]"
 107                                 : "<del>${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]</del>";
 108         }
 109 }