includes/specials/SpecialMostinterwikis.php

   1 <?php
   2 /**
   3  * Implements Special:Mostinterwikis
   4  *
   5  * Copyright © 2012 Umherirrender
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup SpecialPage
  24  * @author Umherirrender
  25  */
  26
  27 /**
  28  * A special page that listed pages that have highest interwiki count
  29  *
  30  * @ingroup SpecialPage
  31  */
  32 class MostinterwikisPage extends QueryPage {
  33
  34         function __construct( $name = 'Mostinterwikis' ) {
  35                 parent::__construct( $name );
  36         }
  37
  38         function isExpensive() { return true; }
  39         function isSyndicated() { return false; }
  40
  41         function getQueryInfo() {
  42                 return array (
  43                         'tables' => array (
  44                                 'langlinks',
  45                                 'page'
  46                         ), 'fields' => array (
  47                                 'namespace' => 'page_namespace',
  48                                 'title' => 'page_title',
  49                                 'value' => 'COUNT(*)'
  50                         ), 'conds' => array (
  51                                 'page_namespace' => MWNamespace::getContentNamespaces()
  52                         ), 'options' => array (
  53                                 'HAVING' => 'COUNT(*) > 1',
  54                                 'GROUP BY' => array (
  55                                         'page_namespace',
  56                                         'page_title'
  57                                 )
  58                         ), 'join_conds' => array (
  59                                 'page' => array (
  60                                         'LEFT JOIN',
  61                                         'page_id = ll_from'
  62                                 )
  63                         )
  64                 );
  65         }
  66
  67         /**
  68          * Pre-fill the link cache
  69          *
  70          * @param $db DatabaseBase
  71          * @param $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                 // Back to start for display
  87                 $res->seek( 0 );
  88         }
  89
  90         /**
  91          * @param $skin Skin
  92          * @param $result
  93          * @return string
  94          */
  95         function formatResult( $skin, $result ) {
  96                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
  97                 if ( !$title ) {
  98                         return Html::element( 'span', array( 'class' => 'mw-invalidtitle' ),
  99                                 Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
 100                 }
 101
 102                 if ( $this->isCached() ) {
 103                         $link = Linker::link( $title );
 104                 } else {
 105                         $link = Linker::linkKnown( $title );
 106                 }
 107
 108                 $count = $this->msg( 'ninterwikis' )->numParams( $result->value )->escaped();
 109
 110                 return $this->getLanguage()->specialList( $link, $count );
 111         }
 112 }