function systemAction($system_id)
 {
     $system = Systems::findFirstById($system_id);
     $versions = Versions::find(array('order' => 'id DESC'));
     $this->view->system = $system;
     $this->view->versions = $versions;
 }
 public static function last_version()
 {
     $query = Versions::find(array('order' => 'date DESC', 'limit' => 1));
     $result = $query->getFirst();
     $version = $result->version;
     $array = explode('.', $version);
     $key_terakhir = count($array);
     $key_terakhir = $key_terakhir - 1;
     $array[$key_terakhir] = $array[$key_terakhir] + 1;
     $version_now = implode('.', $array);
     return $version_now;
 }