function execute()
 {
     $action = Request::post('contact_action');
     if (!$action) {
         return;
     }
     $model = new contactsUsersModel();
     if ($action == 'create') {
         if (sizeof($model->where(array('login' => Request::post('login')))->fetchAll()) > 0) {
             return;
         }
         $data = array('name' => Request::post('name'), 'login' => Request::post('login'), 'date' => time(), 'block' => false);
         if (Request::post('password')) {
             $data['password'] = md5(Request::post('password'));
         }
         $model->insert($data);
     } else {
         if ($action == 'update') {
             if (sizeof($model->where(array('login' => Request::post('login')))->fetchAll()) <= 0) {
                 return;
             }
             $data = array('name' => Request::post('name'));
             if (Request::post('password')) {
                 $data['password'] = md5(Request::post('password'));
             }
             $model->where(array('login' => Request::post('login')))->update($data);
         }
     }
     if (Rights::isHave('contacts', 'add_right')) {
         $this->setRights(Request::post('login'), Request::post('rights') ? Request::post('rights') : array());
     }
 }