public function getIndex($doc)
{
try {
$userId = null;
if (Auth::check()) {
$userId = Auth::user()->id;
}
$parentId = Input::get('parent_id');
$results = Comment::loadComments($doc, $parentId, $userId);
} catch (Exception $e) {
throw $e;
App::abort(500, $e->getMessage());
}
return Response::json($results);
}
