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                 $this->includable( true );
  33         }
  34
  35         function execute( $par ) {
  36                 $inc = $this->including();
  37
  38                 if ( $inc ) {
  39                         $parts = explode( '/', $par, 2 );
  40                         $this->limit = (int)$parts[0];
  41                         // @todo FIXME: nlinks is ignored
  42                         $nlinks = isset( $parts[1] ) && $parts[1] === 'nlinks';
  43                         $this->offset = 0;
  44                 } else {
  45                         $nlinks = true;
  46                 }
  47                 $this->setListOutput( $inc );
  48                 $this->shownavigation = !$inc;
  49                 parent::execute( $par );
  50         }
  51
  52         function getQueryInfo() {
  53                 global $wgWantedPagesThreshold;
  54                 $count = $wgWantedPagesThreshold - 1;
  55                 $query = array(
  56                         'tables' => array(
  57                                 'pagelinks',
  58                                 'pg1' => 'page',
  59                                 'pg2' => 'page'
  60                         ),
  61                         'fields' => array(
  62                                 'pl_namespace AS namespace',
  63                                 'pl_title AS title',
  64                                 'COUNT(*) AS value'
  65                         ),
  66                         'conds' => array(
  67                                 'pg1.page_namespace IS NULL',
  68                                 "pl_namespace NOT IN ( '" . NS_USER .
  69                                         "', '" . NS_USER_TALK . "' )",
  70                                 "pg2.page_namespace != '" . NS_MEDIAWIKI . "'"
  71                         ),
  72                         'options' => array(
  73                                 'HAVING' => "COUNT(*) > $count",
  74                                 'GROUP BY' => 'pl_namespace, pl_title'
  75                         ),
  76                         'join_conds' => array(
  77                                 'pg1' => array(
  78                                         'LEFT JOIN', array(
  79                                                 'pg1.page_namespace = pl_namespace',
  80                                                 'pg1.page_title = pl_title'
  81                                         )
  82                                 ),
  83                                 'pg2' => array( 'LEFT JOIN', 'pg2.page_id = pl_from' )
  84                         )
  85                 );
  86                 // Replacement for the WantedPages::getSQL hook
  87                 wfRunHooks( 'WantedPages::getQueryInfo', array( &$this, &$query ) );
  88                 return $query;
  89         }
  90 }