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   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  }