/**
* Get the data
* If a revision-id was specified in the URL we load the revision and not the actual data.
*/
private function getData()
{
// get the record
$this->record = (array) BackendCatalogModel::getComment($this->id);
// no item found, throw an exceptions, because somebody is f*****g with our URL
if (empty($this->record)) {
$this->redirect(BackendModel::createURLForAction('index') . '&error=non-existing');
}
}