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         function __construct( $name = 'Wantedpages' ) {
  31                 parent::__construct( $name );
  32         }
  33
  34         function execute( $par ) {
  35                 $inc = $this->including();
  36
  37                 if ( $inc ) {
  38                         @list( $limit, $nlinks ) = explode( '/', $par, 2 );
  39                         $this->limit = (int)$limit;
  40                         // @todo FIXME: nlinks is ignored
  41                         $nlinks = $nlinks === 'nlinks';
  42                         $this->offset = 0;
  43                 } else {
  44                         $nlinks = true;
  45                 }
  46                 $this->setListOutput( $inc );
  47                 $this->shownavigation = !$inc;
  48                 parent::execute( $par );
  49         }
  50
  51         function getQueryInfo() {
  52                 global $wgWantedPagesThreshold;
  53                 $count = $wgWantedPagesThreshold - 1;
  54                 $query = array(
  55                         'tables' => array(
  56                                 'pagelinks',
  57                                 'pg1' => 'page',
  58                                 'pg2' => 'page'
  59                         ),
  60                         'fields' => array(
  61                                 'pl_namespace AS namespace',
  62                                 'pl_title AS title',
  63                                 'COUNT(*) AS value'
  64                         ),
  65                         'conds' => array(
  66                                 'pg1.page_namespace IS NULL',
  67                                 "pl_namespace NOT IN ( '" . NS_USER .
  68                                         "', '" . NS_USER_TALK . "' )",
  69                                 "pg2.page_namespace != '" . NS_MEDIAWIKI . "'"
  70                         ),
  71                         'options' => array(
  72                                 'HAVING' => "COUNT(*) > $count",
  73                                 'GROUP BY' => 'pl_namespace, pl_title'
  74                         ),
  75                         'join_conds' => array(
  76                                 'pg1' => array(
  77                                         'LEFT JOIN', array(
  78                                                 'pg1.page_namespace = pl_namespace',
  79                                                 'pg1.page_title = pl_title'
  80                                         )
  81                                 ),
  82                                 'pg2' => array( 'LEFT JOIN', 'pg2.page_id = pl_from' )
  83                         )
  84                 );
  85                 // Replacement for the WantedPages::getSQL hook
  86                 wfRunHooks( 'WantedPages::getQueryInfo', array( &$this, &$query ) );
  87                 return $query;
  88         }
  89 }