public function getFeedObject( $title, $description ) {
global $wgSitename, $wgContLanguageCode, $wgFeedClasses, $wgTitle;
$feedTitle = "$wgSitename - {$title} [$wgContLanguageCode]";
-
+ if( !isset($wgFeedClasses[$this->format] ) )
+ return false;
return new $wgFeedClasses[$this->format](
$feedTitle, htmlspecialchars( $description ), $wgTitle->getFullUrl() );
}