00001 <?php
00010 class DisambiguationsPage extends PageQueryPage {
00011
00012 function getName() {
00013 return 'Disambiguations';
00014 }
00015
00016 function isExpensive( ) { return true; }
00017 function isSyndicated() { return false; }
00018
00019
00020 function getPageHeader( ) {
00021 return wfMsgExt( 'disambiguations-text', array( 'parse' ) );
00022 }
00023
00024 function getSQL() {
00025 $dbr = wfGetDB( DB_SLAVE );
00026
00027 $dMsgText = wfMsgForContent('disambiguationspage');
00028
00029 $linkBatch = new LinkBatch;
00030
00031 # If the text can be treated as a title, use it verbatim.
00032 # Otherwise, pull the titles from the links table
00033 $dp = Title::newFromText($dMsgText);
00034 if( $dp ) {
00035 if($dp->getNamespace() != NS_TEMPLATE) {
00036 # FIXME we assume the disambiguation message is a template but
00037 # the page can potentially be from another namespace :/
00038 wfDebug("Mediawiki:disambiguationspage message does not refer to a template!\n");
00039 }
00040 $linkBatch->addObj( $dp );
00041 } else {
00042 # Get all the templates linked from the Mediawiki:Disambiguationspage
00043 $disPageObj = Title::makeTitleSafe( NS_MEDIAWIKI, 'disambiguationspage' );
00044 $res = $dbr->select(
00045 array('pagelinks', 'page'),
00046 'pl_title',
00047 array('page_id = pl_from', 'pl_namespace' => NS_TEMPLATE,
00048 'page_namespace' => $disPageObj->getNamespace(), 'page_title' => $disPageObj->getDBkey()),
00049 __METHOD__ );
00050
00051 while ( $row = $dbr->fetchObject( $res ) ) {
00052 $linkBatch->addObj( Title::makeTitle( NS_TEMPLATE, $row->pl_title ));
00053 }
00054
00055 $dbr->freeResult( $res );
00056 }
00057
00058 $set = $linkBatch->constructSet( 'lb.tl', $dbr );
00059 if( $set === false ) {
00060 # We must always return a valid sql query, but this way DB will always quicly return an empty result
00061 $set = 'FALSE';
00062 wfDebug("Mediawiki:disambiguationspage message does not link to any templates!\n");
00063 }
00064
00065 list( $page, $pagelinks, $templatelinks) = $dbr->tableNamesN( 'page', 'pagelinks', 'templatelinks' );
00066
00067 $sql = "SELECT 'Disambiguations' AS \"type\", pb.page_namespace AS namespace,"
00068 ." pb.page_title AS title, la.pl_from AS value"
00069 ." FROM {$templatelinks} AS lb, {$page} AS pb, {$pagelinks} AS la, {$page} AS pa"
00070 ." WHERE $set" # disambiguation template(s)
00071 .' AND pa.page_id = la.pl_from'
00072 .' AND pa.page_namespace = ' . NS_MAIN # Limit to just articles in the main namespace
00073 .' AND pb.page_id = lb.tl_from'
00074 .' AND pb.page_namespace = la.pl_namespace'
00075 .' AND pb.page_title = la.pl_title'
00076 .' ORDER BY lb.tl_namespace, lb.tl_title';
00077
00078 return $sql;
00079 }
00080
00081 function getOrder() {
00082 return '';
00083 }
00084
00085 function formatResult( $skin, $result ) {
00086 global $wgContLang;
00087 $title = Title::newFromID( $result->value );
00088 $dp = Title::makeTitle( $result->namespace, $result->title );
00089
00090 $from = $skin->link( $title );
00091 $edit = $skin->link( $title, "(".wfMsgHtml("qbedit").")", array(), array( 'redirect' => 'no', 'action' => 'edit' ) );
00092 $arr = $wgContLang->getArrow();
00093 $to = $skin->link( $dp );
00094
00095 return "$from $edit $arr $to";
00096 }
00097 }
00098
00102 function wfSpecialDisambiguations() {
00103 list( $limit, $offset ) = wfCheckLimits();
00104
00105 $sd = new DisambiguationsPage();
00106
00107 return $sd->doQuery( $offset, $limit );
00108 }