/**
  * Save the profile
  */
 protected function executeSave()
 {
     if (empty($_POST)) {
         // dont process anything if no data has been posted
         return $this->executeIndex();
     }
     $validator = new \psm\Util\User\UserValidator($this->user);
     $user = $this->user->getUser();
     $fields = $this->profile_fields;
     $fields[] = 'password';
     $fields[] = 'password_repeat';
     $clean = array();
     foreach ($fields as $field) {
         if (isset($_POST[$field])) {
             $clean[$field] = trim(strip_tags($_POST[$field]));
         } else {
             $clean[$field] = '';
         }
     }
     // validate the lot
     try {
         $validator->username($clean['user_name'], $this->user->getUserId());
         $validator->email($clean['email']);
         // always validate password for new users,
         // but only validate it for existing users when they change it.
         if ($clean['password'] != '') {
             $validator->password($clean['password'], $clean['password_repeat']);
         }
     } catch (\InvalidArgumentException $e) {
         $this->addMessage(psm_get_lang('users', 'error_' . $e->getMessage()), 'error');
         return $this->executeIndex();
     }
     if (!empty($clean['password'])) {
         $password = $clean['password'];
     }
     unset($clean['password']);
     unset($clean['password_repeat']);
     $this->db->save(PSM_DB_PREFIX . 'users', $clean, array('user_id' => $this->user->getUserId()));
     if (isset($password)) {
         $this->user->changePassword($this->user->getUserId(), $password);
     }
     $this->addMessage(psm_get_lang('users', 'profile_updated'), 'success');
     return $this->executeIndex();
 }