includes/SpecialBrokenRedirects.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once('QueryPage.php');
  12
  13 /**
  14  *
  15  * @package MediaWiki
  16  * @subpackage SpecialPage
  17  */
  18 class BrokenRedirectsPage extends PageQueryPage {
  19         var $targets = array();
  20
  21         function getName() {
  22                 return 'BrokenRedirects';
  23         }
  24
  25         function isExpensive( ) { return true; }
  26         function isSyndicated() { return false; }
  27
  28         function getPageHeader( ) {
  29                 return wfMsgWikiHtml('brokenredirectstext')."<br />\n";
  30         }
  31
  32         function getSQL() {
  33                 $dbr =& wfGetDB( DB_SLAVE );
  34                 extract( $dbr->tableNames( 'page', 'pagelinks' ) );
  35
  36                 $sql = "SELECT 'BrokenRedirects'  AS type,
  37                                 p1.page_namespace AS namespace,
  38                                 p1.page_title     AS title,
  39                                 pl_namespace,
  40                                 pl_title
  41                            FROM ($pagelinks, $page AS p1)
  42                       LEFT JOIN $page AS p2
  43                              ON pl_namespace=p2.page_namespace AND pl_title=p2.page_title
  44                           WHERE p1.page_is_redirect=1
  45                             AND pl_from=p1.page_id
  46                             AND p2.page_namespace IS NULL";
  47                 return $sql;
  48         }
  49
  50         function getOrder() {
  51                 return '';
  52         }
  53
  54         function formatResult( $skin, $result ) {
  55                 $fromObj = Title::makeTitle( $result->namespace, $result->title );
  56                 if ( isset( $result->pl_title ) ) {
  57                         $toObj = Title::makeTitle( $result->pl_namespace, $result->pl_title );
  58                 } else {
  59                         $blinks = $fromObj->getBrokenLinksFrom();
  60                         if ( $blinks ) {
  61                                 $toObj = $blinks[0];
  62                         } else {
  63                                 $toObj = false;
  64                         }
  65                 }
  66
  67                 // $toObj may very easily be false if the $result list is cached
  68                 if ( !is_object( $toObj ) ) {
  69                         return '<s>' . $skin->makeLinkObj( $fromObj ) . '</s>';
  70                 }
  71
  72                 $from = $skin->makeKnownLinkObj( $fromObj ,'', 'redirect=no' );
  73                 $edit = $skin->makeBrokenLinkObj( $fromObj , "(".wfMsg("qbedit").")" , 'redirect=no');
  74                 $to   = $skin->makeBrokenLinkObj( $toObj );
  75
  76                 return "$from $edit &rarr; $to";
  77         }
  78 }
  79
  80 /**
  81  * constructor
  82  */
  83 function wfSpecialBrokenRedirects() {
  84         list( $limit, $offset ) = wfCheckLimits();
  85
  86         $sbr = new BrokenRedirectsPage();
  87
  88         return $sbr->doQuery( $offset, $limit );
  89
  90 }
  91 ?>