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 use Wikimedia\Rdbms\IDatabase;
  26
  27 /**
  28  * SpecialShortpages extends QueryPage. It is used to return the shortest
  29  * pages in the database.
  30  *
  31  * @ingroup SpecialPage
  32  */
  33 class ShortPagesPage extends QueryPage {
  34
  35         function __construct( $name = 'Shortpages' ) {
  36                 parent::__construct( $name );
  37         }
  38
  39         function isSyndicated() {
  40                 return false;
  41         }
  42
  43         public function getQueryInfo() {
  44                 $tables = [ 'page' ];
  45                 $conds = [
  46                         'page_namespace' => MWNamespace::getContentNamespaces(),
  47                         'page_is_redirect' => 0
  48                 ];
  49                 $joinConds = [];
  50                 $options = [ 'USE INDEX' => [ 'page' => 'page_redirect_namespace_len' ] ];
  51
  52                 // Allow extensions to modify the query
  53                 Hooks::run( 'ShortPagesQuery', [ &$tables, &$conds, &$joinConds, &$options ] );
  54
  55                 return [
  56                         'tables' => $tables,
  57                         'fields' => [
  58                                 'namespace' => 'page_namespace',
  59                                 'title' => 'page_title',
  60                                 'value' => 'page_len'
  61                         ],
  62                         'conds' => $conds,
  63                         'join_conds' => $joinConds,
  64                         'options' => $options
  65                 ];
  66         }
  67
  68         function getOrderFields() {
  69                 return [ 'page_len' ];
  70         }
  71
  72         /**
  73          * @param IDatabase $db
  74          * @param ResultWrapper $res
  75          */
  76         function preprocessResults( $db, $res ) {
  77                 $this->executeLBFromResultWrapper( $res );
  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', [ 'class' => 'mw-invalidtitle' ],
  95                                 Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
  96                 }
  97
  98                 $linkRenderer = $this->getLinkRenderer();
  99                 $hlink = $linkRenderer->makeKnownLink(
 100                         $title,
 101                         $this->msg( 'hist' )->text(),
 102                         [],
 103                         [ 'action' => 'history' ]
 104                 );
 105                 $hlinkInParentheses = $this->msg( 'parentheses' )->rawParams( $hlink )->escaped();
 106
 107                 if ( $this->isCached() ) {
 108                         $plink = $linkRenderer->makeLink( $title );
 109                         $exists = $title->exists();
 110                 } else {
 111                         $plink = $linkRenderer->makeKnownLink( $title );
 112                         $exists = true;
 113                 }
 114
 115                 $size = $this->msg( 'nbytes' )->numParams( $result->value )->escaped();
 116
 117                 return $exists
 118                         ? "${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]"
 119                         : "<del>${hlinkInParentheses} {$dm}{$plink} {$dm}[{$size}]</del>";
 120         }
 121
 122         protected function getGroupName() {
 123                 return 'maintenance';
 124         }
 125 }