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         public function getQueryInfo() {
  41                 $tables = [ 'page' ];
  42                 $conds = [
  43                         'page_namespace' => MWNamespace::getContentNamespaces(),
  44                         'page_is_redirect' => 0
  45                 ];
  46                 $joinConds = [];
  47                 $options = [ 'USE INDEX' => [ 'page' => 'page_redirect_namespace_len' ] ];
  48
  49                 // Allow extensions to modify the query
  50                 Hooks::run( 'ShortPagesQuery', [ &$tables, &$conds, &$joinConds, &$options ] );
  51
  52                 return [
  53                         'tables' => $tables,
  54                         'fields' => [
  55                                 'namespace' => 'page_namespace',
  56                                 'title' => 'page_title',
  57                                 'value' => 'page_len'
  58                         ],
  59                         'conds' => $conds,
  60                         'join_conds' => $joinConds,
  61                         'options' => $options
  62                 ];
  63         }
  64
  65         function getOrderFields() {
  66                 return [ 'page_len' ];
  67         }
  68
  69         /**
  70          * @param IDatabase $db
  71          * @param ResultWrapper $res
  72          */
  73         function preprocessResults( $db, $res ) {
  74                 # There's no point doing a batch check if we aren't caching results;
  75                 # the page must exist for it to have been pulled out of the table
  76                 if ( !$this->isCached() || !$res->numRows() ) {
  77                         return;
  78                 }
  79
  80                 $batch = new LinkBatch();
  81                 foreach ( $res as $row ) {
  82                         $batch->add( $row->namespace, $row->title );
  83                 }
  84                 $batch->execute();
  85
  86                 $res->seek( 0 );
  87         }
  88
  89         function sortDescending() {
  90                 return false;
  91         }
  92
  93         /**
  94          * @param Skin $skin
  95          * @param object $result Result row
  96          * @return string
  97          */
  98         function formatResult( $skin, $result ) {
  99                 $dm = $this->getLanguage()->getDirMark();
 100
 101                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
 102                 if ( !$title ) {
 103                         return Html::element( 'span', [ 'class' => 'mw-invalidtitle' ],
 104                                 Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
 105                 }
 106
 107                 $hlink = Linker::linkKnown(
 108                         $title,
 109                         $this->msg( 'hist' )->escaped(),
 110                         [],
 111                         [ 'action' => 'history' ]
 112                 );
 113                 $hlinkInParentheses = $this->msg( 'parentheses' )->rawParams( $hlink )->escaped();
 114
 115                 if ( $this->isCached() ) {
 116                         $plink = Linker::link( $title );
 117                         $exists = $title->exists();
 118                 } else {
 119                         $plink = Linker::linkKnown( $title );
 120                         $exists = true;
 121                 }
 122
 123                 $size = $this->msg( 'nbytes' )->numParams( $result->value )->escaped();
 124
 125                 return $exists
 126                         ? "${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]"
 127                         : "<del>${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]</del>";
 128         }
 129
 130         protected function getGroupName() {
 131                 return 'maintenance';
 132         }
 133 }