public function action_submit($param = null)
 {
     $user = $this->user;
     $data = $this->model;
     //    echo "<pre>";var_dump($user);exit;
     $username = get($data, 'username');
     $password = get($data, 'password');
     $role = get($data, 'role', false);
     $realName = get($data, 'realName');
     // Is the user being saved the logged-in user?
     $isSelf = $user->idField() == $this->session->user()->idField();
     // If the user active checkbox is not shown, $active is always true.
     $showActive = !$isSelf && $this->adminSettings->enableUsersDisabling();
     $active = get($data, 'active', !$showActive);
     if ($username == '') {
         throw new ValidationException(ValidationException::REQUIRED_FIELD, '$LOGIN_USERNAME');
     }
     if ($password == self::DUMMY_PASS) {
         $password = '';
     }
     if ($password == '') {
         if (!$user->exists) {
             throw new ValidationException(ValidationException::REQUIRED_FIELD, '$LOGIN_PASSWORD');
         }
         // Do not change the password if the user already exists and the password field was not modified (or left empty)
         // on the form.
     } else {
         $user->passwordField($password);
     }
     // Check if the username has been changed
     if ($username != $user->usernameField()) {
         $tmp = clone $user;
         if ($tmp->findByName($username)) {
             throw new ValidationException(ValidationException::DUPLICATE_RECORD, '$LOGIN_USERNAME');
         }
         $user->usernameField($username);
     }
     $user->activeField($active);
     $user->roleField($role);
     $user->realNameField($realName ?: ucfirst($username));
     if ($user->save()) {
         $this->session->flashMessage('$APP_MSG_SAVED');
     }
     if ($isSelf) {
         return $this->redirection->to($this->session->previousUrl());
     }
 }
 function action_submit($param = null)
 {
     $this->saveModel();
     $this->session->flashMessage('$APP_MSG_SAVED');
 }