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         var $nlinks;
  31
  32         function __construct( $inc = false, $nlinks = true ) {
  33                 $this->setListoutput( $inc );
  34                 $this->nlinks = $nlinks;
  35         }
  36
  37         function getName() {
  38                 return 'Wantedpages';
  39         }
  40
  41         function getSQL() {
  42                 global $wgWantedPagesThreshold;
  43                 $count = $wgWantedPagesThreshold - 1;
  44                 $dbr = wfGetDB( DB_SLAVE );
  45                 $pagelinks = $dbr->tableName( 'pagelinks' );
  46                 $page      = $dbr->tableName( 'page' );
  47                 $sql = "SELECT 'Wantedpages' AS type,
  48                                 pl_namespace AS namespace,
  49                                 pl_title AS title,
  50                                 COUNT(*) AS value
  51                         FROM $pagelinks
  52                         LEFT JOIN $page AS pg1
  53                         ON pl_namespace = pg1.page_namespace AND pl_title = pg1.page_title
  54                         LEFT JOIN $page AS pg2
  55                         ON pl_from = pg2.page_id
  56                         WHERE pg1.page_namespace IS NULL
  57                         AND pl_namespace NOT IN ( " . NS_USER . ", ". NS_USER_TALK . ")
  58                         AND pg2.page_namespace != " . NS_MEDIAWIKI . "
  59                         GROUP BY pl_namespace, pl_title
  60                         HAVING COUNT(*) > $count";
  61
  62                 wfRunHooks( 'WantedPages::getSQL', array( &$this, &$sql ) );
  63                 return $sql;
  64         }
  65 }
  66
  67 /**
  68  * constructor
  69  */
  70 function wfSpecialWantedpages( $par = null, $specialPage ) {
  71         $inc = $specialPage->including();
  72
  73         if ( $inc ) {
  74                 @list( $limit, $nlinks ) = explode( '/', $par, 2 );
  75                 $limit = (int)$limit;
  76                 $nlinks = $nlinks === 'nlinks';
  77                 $offset = 0;
  78         } else {
  79                 list( $limit, $offset ) = wfCheckLimits();
  80                 $nlinks = true;
  81         }
  82
  83         $wpp = new WantedPagesPage( $inc, $nlinks );
  84
  85         $wpp->doQuery( $offset, $limit, !$inc );
  86 }