includes/specials/Deadendpages.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  */
   6
   7 /**
   8  * @ingroup SpecialPage
   9  */
  10 class DeadendPagesPage extends PageQueryPage {
  11
  12         function getName( ) {
  13                 return "Deadendpages";
  14         }
  15
  16         function getPageHeader() {
  17                 return wfMsgExt( 'deadendpagestext', array( 'parse' ) );
  18         }
  19
  20         /**
  21          * LEFT JOIN is expensive
  22          *
  23          * @return true
  24          */
  25         function isExpensive( ) {
  26                 return 1;
  27         }
  28
  29         function isSyndicated() { return false; }
  30
  31         /**
  32          * @return false
  33          */
  34         function sortDescending() {
  35                 return false;
  36         }
  37
  38         /**
  39          * @return string an sqlquery
  40          */
  41         function getSQL() {
  42                 $dbr = wfGetDB( DB_SLAVE );
  43                 list( $page, $pagelinks ) = $dbr->tableNamesN( 'page', 'pagelinks' );
  44                 return "SELECT 'Deadendpages' as type, page_namespace AS namespace, page_title as title, page_title AS value " .
  45         "FROM $page LEFT JOIN $pagelinks ON page_id = pl_from " .
  46         "WHERE pl_from IS NULL " .
  47         "AND page_namespace = 0 " .
  48         "AND page_is_redirect = 0";
  49         }
  50 }
  51
  52 /**
  53  * Constructor
  54  */
  55 function wfSpecialDeadendpages() {
  56
  57         list( $limit, $offset ) = wfCheckLimits();
  58
  59         $depp = new DeadendPagesPage();
  60
  61         return $depp->doQuery( $offset, $limit );
  62 }