public function execute()
 {
     if (!is_null($this->_post->send)) {
         $server = new DatabaseServer();
         $server->loadDataFromPost($this->_post);
         $server->url = $this->_post->getRawData('url');
         try {
             $server->save();
             $this->_view->addInfo('Server has been added');
             $this->_redirect->toModuleAction('AdminModule', 'ModuleActionServers');
             die;
         } catch (ValidatorException $e) {
             $this->_view->assign('errors', $server->getErrors());
             $this->_view->assign('server', $server);
         }
     }
     $this->_view->assign('formHeader', 'Add new server');
     $this->_view->assign('content_file', 'serverForm.tpl');
 }