protected function save_last_selection($params) { $stats_session_manager = new WJ_StatsSessionManager(); $stats_session = new WJ_StatsSession(); $stats_session->last_days = $params['last_days']; $stats_session->from = $params['from']; $stats_session->to = $params['to']; $stats_session_manager->set_last_selection($stats_session); }