public function handle_get_form_values()
{
$url = new UrlHelper();
$item_id = $url->get("item_id", null);
if ($item_id === "_ck_new") {
return array('type' => 'json', 'data' => array('schema' => $this->dataProvider->getSchema(), 'values' => array()));
}
return array('type' => 'json', 'data' => array('schema' => $this->dataProvider->getSchema(), 'values' => $this->dataProvider->getRow($item_id)));
}