includes/SpecialDisambiguations.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 class DisambiguationsPage extends PageQueryPage {
   9
  10         function getName() {
  11                 return 'Disambiguations';
  12         }
  13
  14         function isExpensive( ) { return true; }
  15         function isSyndicated() { return false; }
  16
  17
  18         function getPageHeader( ) {
  19                 global $wgOut;
  20                 return $wgOut->parse( wfMsg( 'disambiguations-text' ) );
  21         }
  22
  23         function getSQL() {
  24                 $dbr =& wfGetDB( DB_SLAVE );
  25
  26                 $dMsgText = wfMsgForContent('disambiguationspage');
  27
  28                 $linkBatch = new LinkBatch;
  29
  30                 # If the text can be treated as a title, use it verbatim.
  31                 # Otherwise, pull the titles from the links table
  32                 $dp = Title::newFromText($dMsgText);
  33                 if( $dp ) {
  34                         if($dp->getNamespace() != NS_TEMPLATE) {
  35                                 # FIXME we assume the disambiguation message is a template but
  36                                 # the page can potentially be from another namespace :/
  37                                 wfDebug("Mediawiki:disambiguationspage message does not refer to a template!\n");
  38                         }
  39                         $linkBatch->addObj( $dp );
  40                 } else {
  41                                 # Get all the templates linked from the Mediawiki:Disambiguationspage
  42                                 $disPageObj = Title::makeTitleSafe( NS_MEDIAWIKI, 'disambiguationspage' );
  43                                 $res = $dbr->select(
  44                                         array('pagelinks', 'page'),
  45                                         'pl_title',
  46                                         array('page_id = pl_from', 'pl_namespace' => NS_TEMPLATE,
  47                                                 'page_namespace' => $disPageObj->getNamespace(), 'page_title' => $disPageObj->getDBkey()),
  48                                         __METHOD__ );
  49
  50                                 while ( $row = $dbr->fetchObject( $res ) ) {
  51                                         $linkBatch->addObj( Title::makeTitle( NS_TEMPLATE, $row->pl_title ));
  52                                 }
  53
  54                                 $dbr->freeResult( $res );
  55                 }
  56
  57                 $set = $linkBatch->constructSet( 'lb.tl', $dbr );
  58                 if( $set === false ) {
  59                         # We must always return a valid sql query, but this way DB will always quicly return an empty result
  60                         $set = 'FALSE';
  61                         wfDebug("Mediawiki:disambiguationspage message does not link to any templates!\n");
  62                 }
  63
  64                 list( $page, $pagelinks, $templatelinks) = $dbr->tableNamesN( 'page', 'pagelinks', 'templatelinks' );
  65
  66                 $sql = "SELECT 'Disambiguations' AS \"type\", pb.page_namespace AS namespace,"
  67                         ." pb.page_title AS title, la.pl_from AS value"
  68                         ." FROM {$templatelinks} AS lb, {$page} AS pb, {$pagelinks} AS la, {$page} AS pa"
  69                         ." WHERE $set"  # disambiguation template(s)
  70                         .' AND pa.page_id = la.pl_from'
  71                         .' AND pa.page_namespace = ' . NS_MAIN  # Limit to just articles in the main namespace
  72                         .' AND pb.page_id = lb.tl_from'
  73                         .' AND pb.page_namespace = la.pl_namespace'
  74                         .' AND pb.page_title = la.pl_title'
  75                         .' ORDER BY lb.tl_namespace, lb.tl_title';
  76
  77                 return $sql;
  78         }
  79
  80         function getOrder() {
  81                 return '';
  82         }
  83
  84         function formatResult( $skin, $result ) {
  85                 global $wgContLang;
  86                 $title = Title::newFromId( $result->value );
  87                 $dp = Title::makeTitle( $result->namespace, $result->title );
  88
  89                 $from = $skin->makeKnownLinkObj( $title, '' );
  90                 $edit = $skin->makeKnownLinkObj( $title, "(".wfMsgHtml("qbedit").")" , 'redirect=no&action=edit' );
  91                 $arr  = $wgContLang->getArrow();
  92                 $to   = $skin->makeKnownLinkObj( $dp, '' );
  93
  94                 return "$from $edit $arr $to";
  95         }
  96 }
  97
  98 /**
  99  * Constructor
 100  */
 101 function wfSpecialDisambiguations() {
 102         list( $limit, $offset ) = wfCheckLimits();
 103
 104         $sd = new DisambiguationsPage();
 105
 106         return $sd->doQuery( $offset, $limit );
 107 }
 108
 109 ?>