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 use Wikimedia\Rdbms\ResultWrapper;
  25
  26 /**
  27  * SpecialShortpages extends QueryPage. It is used to return the shortest
  28  * pages in the database.
  29  *
  30  * @ingroup SpecialPage
  31  */
  32 class ShortPagesPage extends QueryPage {
  33
  34         function __construct( $name = 'Shortpages' ) {
  35                 parent::__construct( $name );
  36         }
  37
  38         function isSyndicated() {
  39                 return false;
  40         }
  41
  42         public function getQueryInfo() {
  43                 $tables = [ 'page' ];
  44                 $conds = [
  45                         'page_namespace' => MWNamespace::getContentNamespaces(),
  46                         'page_is_redirect' => 0
  47                 ];
  48                 $joinConds = [];
  49                 $options = [ 'USE INDEX' => [ 'page' => 'page_redirect_namespace_len' ] ];
  50
  51                 // Allow extensions to modify the query
  52                 Hooks::run( 'ShortPagesQuery', [ &$tables, &$conds, &$joinConds, &$options ] );
  53
  54                 return [
  55                         'tables' => $tables,
  56                         'fields' => [
  57                                 'namespace' => 'page_namespace',
  58                                 'title' => 'page_title',
  59                                 'value' => 'page_len'
  60                         ],
  61                         'conds' => $conds,
  62                         'join_conds' => $joinConds,
  63                         'options' => $options
  64                 ];
  65         }
  66
  67         function getOrderFields() {
  68                 return [ 'page_len' ];
  69         }
  70
  71         /**
  72          * @param IDatabase $db
  73          * @param ResultWrapper $res
  74          */
  75         function preprocessResults( $db, $res ) {
  76                 $this->executeLBFromResultWrapper( $res );
  77         }
  78
  79         function sortDescending() {
  80                 return false;
  81         }
  82
  83         /**
  84          * @param Skin $skin
  85          * @param object $result Result row
  86          * @return string
  87          */
  88         function formatResult( $skin, $result ) {
  89                 $dm = $this->getLanguage()->getDirMark();
  90
  91                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
  92                 if ( !$title ) {
  93                         return Html::element( 'span', [ 'class' => 'mw-invalidtitle' ],
  94                                 Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
  95                 }
  96
  97                 $linkRenderer = $this->getLinkRenderer();
  98                 $hlink = $linkRenderer->makeKnownLink(
  99                         $title,
 100                         $this->msg( 'hist' )->text(),
 101                         [],
 102                         [ 'action' => 'history' ]
 103                 );
 104                 $hlinkInParentheses = $this->msg( 'parentheses' )->rawParams( $hlink )->escaped();
 105
 106                 if ( $this->isCached() ) {
 107                         $plink = $linkRenderer->makeLink( $title );
 108                         $exists = $title->exists();
 109                 } else {
 110                         $plink = $linkRenderer->makeKnownLink( $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 }