includes/specials/SpecialWantedpages.php

   1 <?php
   2 /**
   3  * Implements Special:Wantedpages
   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  * A special page that lists most linked pages that does not exist
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class WantedPagesPage extends WantedQueryPage {
  30
  31         function __construct( $name = 'Wantedpages' ) {
  32                 parent::__construct( $name );
  33         }
  34
  35         function isIncludable() {
  36                 return true;
  37         }
  38
  39         function execute( $par ) {
  40                 $inc = $this->including();
  41
  42                 if ( $inc ) {
  43                         $this->limit = (int)$par;
  44                         $this->offset = 0;
  45                 }
  46                 $this->setListoutput( $inc );
  47                 $this->shownavigation = !$inc;
  48                 parent::execute( $par );
  49         }
  50
  51         function getQueryInfo() {
  52                 $dbr = wfGetDB( DB_REPLICA );
  53                 $count = $this->getConfig()->get( 'WantedPagesThreshold' ) - 1;
  54                 $query = [
  55                         'tables' => [
  56                                 'pagelinks',
  57                                 'pg1' => 'page',
  58                                 'pg2' => 'page'
  59                         ],
  60                         'fields' => [
  61                                 'namespace' => 'pl_namespace',
  62                                 'title' => 'pl_title',
  63                                 'value' => 'COUNT(*)'
  64                         ],
  65                         'conds' => [
  66                                 'pg1.page_namespace IS NULL',
  67                                 'pl_namespace NOT IN (' . $dbr->makeList( [ NS_USER, NS_USER_TALK ] ) . ')',
  68                                 'pg2.page_namespace != ' . $dbr->addQuotes( NS_MEDIAWIKI ),
  69                         ],
  70                         'options' => [
  71                                 'HAVING' => [
  72                                         'COUNT(*) > ' . $dbr->addQuotes( $count ),
  73                                         'COUNT(*) > SUM(pg2.page_is_redirect)'
  74                                 ],
  75                                 'GROUP BY' => [ 'pl_namespace', 'pl_title' ]
  76                         ],
  77                         'join_conds' => [
  78                                 'pg1' => [
  79                                         'LEFT JOIN', [
  80                                                 'pg1.page_namespace = pl_namespace',
  81                                                 'pg1.page_title = pl_title'
  82                                         ]
  83                                 ],
  84                                 'pg2' => [ 'LEFT JOIN', 'pg2.page_id = pl_from' ]
  85                         ]
  86                 ];
  87                 // Replacement for the WantedPages::getSQL hook
  88                 // Avoid PHP 7.1 warning from passing $this by reference
  89                 $wantedPages = $this;
  90                 Hooks::run( 'WantedPages::getQueryInfo', [ &$wantedPages, &$query ] );
  91
  92                 return $query;
  93         }
  94
  95         protected function getGroupName() {
  96                 return 'maintenance';
  97         }
  98 }