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(
  44                                 'namespace' => 'page_namespace',
  45                                 'title' => 'page_title',
  46                                 'value' => 'page_len'
  47                         ),
  48                         'conds' => array(
  49                                 'page_namespace' => MWNamespace::getContentNamespaces(),
  50                                 'page_is_redirect' => 0
  51                         ),
  52                         'options' => array( 'USE INDEX' => 'page_redirect_namespace_len' )
  53                 );
  54         }
  55
  56         function getOrderFields() {
  57                 return array( 'page_len' );
  58         }
  59
  60         /**
  61          * @param DatabaseBase $db
  62          * @param ResultWrapper $res
  63          */
  64         function preprocessResults( $db, $res ) {
  65                 # There's no point doing a batch check if we aren't caching results;
  66                 # the page must exist for it to have been pulled out of the table
  67                 if ( !$this->isCached() || !$res->numRows() ) {
  68                         return;
  69                 }
  70
  71                 $batch = new LinkBatch();
  72                 foreach ( $res as $row ) {
  73                         $batch->add( $row->namespace, $row->title );
  74                 }
  75                 $batch->execute();
  76
  77                 $res->seek( 0 );
  78         }
  79
  80         function sortDescending() {
  81                 return false;
  82         }
  83
  84         /**
  85          * @param Skin $skin
  86          * @param object $result Result row
  87          * @return string
  88          */
  89         function formatResult( $skin, $result ) {
  90                 $dm = $this->getLanguage()->getDirMark();
  91
  92                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
  93                 if ( !$title ) {
  94                         return Html::element( 'span', array( 'class' => 'mw-invalidtitle' ),
  95                                 Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
  96                 }
  97
  98                 $hlink = Linker::linkKnown(
  99                         $title,
 100                         $this->msg( 'hist' )->escaped(),
 101                         array(),
 102                         array( 'action' => 'history' )
 103                 );
 104                 $hlinkInParentheses = $this->msg( 'parentheses' )->rawParams( $hlink )->escaped();
 105
 106                 if ( $this->isCached() ) {
 107                         $plink = Linker::link( $title );
 108                         $exists = $title->exists();
 109                 } else {
 110                         $plink = Linker::linkKnown( $title );
 111                         $exists = true;
 112                 }
 113
 114                 $size = $this->msg( 'nbytes' )->numParams( $result->value )->escaped();
 115
 116                 return $exists
 117                         ? "${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]"
 118                         : "<del>${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]</del>";
 119         }
 120
 121         protected function getGroupName() {
 122                 return 'maintenance';
 123         }
 124 }