private static function insert(Hall $model)
{
$db = Db::getInstance(\ConferenceScheduler\Configs\DatabaseConfig::DB_INSTANCE);
$query = "INSERT INTO halls (Name,places,venueId) VALUES (:Name, :places, :venueId);";
$result = $db->prepare($query);
$result->execute([':Name' => $model->getName(), ':places' => $model->getPlaces(), ':venueId' => $model->getVenueId()]);
$model->setId($db->lastInsertId());
}
