function DescriptionFromRDF(&$article)
{
$nt = $article->getTitle();
$uri = $nt->getFullUrl();
$model = MwRdfGetModel($article);
$results = $model->rdqlQuery("SELECT ?description " . "WHERE (<{$uri}> dc:description ?description) " . "USING dc FOR http://purl.org/dc/elements/1.1/", FALSE);
$desc = '';
foreach ($results as $row) {
$rowval = preg_replace("/^\"(.*?)\"\$/", '\\1', $row['?description']);
$desc .= ($desc ? ' ' : '') . $rowval;
}
return $desc;
}
function wfSpecialRdf($par)
{
global $wgRequest, $wgRdfDefaultModels, $wgRdfOutputFunctions;
$target = $wgRequest->getVal('target');
if (!isset($target)) {
# no target parameter
MwRdfShowForm();
} else {
if (strlen($target) == 0) {
# no target contents
MwRdfShowForm(wfMsg('badtitle'));
} else {
$nt = Title::newFromText($target);
if ($nt->getArticleID() == 0) {
# not an article
MwRdfShowForm(wfMsg('badtitle'));
} else {
$article = new Article($nt);
# Note: WebRequest chokes on arrays here
$modelnames = $_REQUEST['modelnames'];
if (is_null($modelnames)) {
$modelnames = $wgRdfDefaultModels;
}
if (is_string($modelnames)) {
$modelnames = explode(',', $modelnames);
}
$format = $wgRequest->getVal('format', 'xml');
$outfun = $wgRdfOutputFunctions[$format];
if (!isset($outfun)) {
wfDebugDieBacktrace("No output function for format '{$format}'.");
}
$fullModel = MwRdfGetModel($article, $modelnames);
$outfun($fullModel);
}
}
}
}