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<?php
/**
 *
 * @package MediaWiki
 * @subpackage SpecialPage
 */

/**
 *
 */
require_once('QueryPage.php');

/**
 *
 * @package MediaWiki
 * @subpackage SpecialPage
 */
class DisambiguationsPage extends PageQueryPage {

	function getName() {
		return 'Disambiguations';
	}
	
	function isExpensive( ) { return true; }
	function isSyndicated() { return false; }

	function getPageHeader( ) {
		global $wgUser;
		$sk = $wgUser->getSkin();
		
		#FIXME : probably need to add a backlink to the maintenance page.
		return '<p>'.wfMsg("disambiguationstext", $sk->makeKnownLink(wfMsgForContent('disambiguationspage')) )."</p><br />\n";
	}

	function getSQL() {
		$dbr =& wfGetDB( DB_SLAVE );
		extract( $dbr->tableNames( 'page', 'pagelinks' ) );
		
		$dp = Title::newFromText(wfMsgForContent("disambiguationspage"));
		$id = $dp->getArticleId();
        $dns = $dp->getNamespace();
        $dtitle = $dbr->addQuotes( $dp->getDBkey() );

		$sql = "SELECT 'Disambiguations' AS type, pa.page_namespace AS namespace,"
			 ." pa.page_title AS title, la.pl_from AS value"
			 ." FROM {$pagelinks} AS lb, {$page} AS pa, {$pagelinks} AS la"
			 ." WHERE lb.pl_namespace = $dns AND lb.pl_title = $dtitle" # disambiguation template
			 ." AND pa.page_id = lb.pl_from"        
			 ." AND pa.page_namespace = la.pl_namespace"
			 ." AND pa.page_title = la.pl_title";
		return $sql;
	}

	function getOrder() {
		return '';
	}
	
	function formatResult( $skin, $result ) {
		global $wgContLang ;
		$title = Title::newFromId( $result->value );
        $dp = Title::makeTitle( $result->namespace, $result->title );

		$from = $skin->makeKnownLinkObj( $title,'');
		$edit = $skin->makeBrokenLinkObj( $title, "(".wfMsg("qbedit").")" , 'redirect=no');
		$to   = $skin->makeKnownLinkObj( $dp,'');
		
		return "$from $edit => $to";
	}
}

/**
 * Constructor
 */
function wfSpecialDisambiguations() {
	list( $limit, $offset ) = wfCheckLimits();
	
	$sd = new DisambiguationsPage();
	
	return $sd->doQuery( $offset, $limit );
}
?>