private function _validate_rdf_type($type)
{
$types = is_array($type) ? $type : array($type);
$urls = array();
foreach ($this->content_types as $name) {
$urls[$name] = MY_Model::rdf_type($name);
}
$valid_type = false;
foreach ($types as $type) {
if ($hit = array_search($type, $urls)) {
$valid_type = true;
}
}
if (!$valid_type) {
$this->_output_error(StatusCodes::HTTP_BAD_REQUEST, 'Invalid rdf:type value.');
}
return $hit;
}
