public function dispatch(ServerRequestInterface $request, ResponseInterface $response) : ResponseInterface
{
$lang = LanguageNegotiator::getLanguage($request);
$query = $this->db->prepare('SELECT n.id, n.title, n.parent_id from nodes n
INNER JOIN node_attributes na ON na.node_id = n.id
INNER JOIN attribute_values av on na.`attribute_value_id` = av.`id`
where av.`attribute_value` = :language;');
$query->bindParam(':language', $lang);
$query->execute();
$data = $query->fetchAll(\PDO::FETCH_ASSOC);
$neg = new FormatNegotiator();
$contentType = $neg->getFormat($request);
switch ($contentType) {
case 'xml':
$xml = new \SimpleXMLElement('<root/>');
array_walk_recursive($this->treeBuilder->build($data), array($xml, 'addChild'));
$response->getBody()->write($xml->asXML());
break;
default:
$response->getBody()->write(json_encode($this->treeBuilder->build($data)));
break;
}
return $response->withoutHeader('Content-Type');
// Remove the Content-Type Header
}
