/**
  * generates a frontend Grouplist as Array for TCA Select fields
  *
  * @param array $params
  * @param object $pObj
  */
 public function itemsProcFunc_feusergroups(&$params, &$pObj)
 {
     $conf = tx_fbmagento_tools::getExtConfig();
     try {
         $soapClient = new tx_fbmagento_soapinterface($conf['url'], $conf['username'], $conf['password']);
         $roles = $soapClient->customer_group()->list();
     } catch (Exception $e) {
         tx_fbmagento_tools::displayError('SOAP API Error: ' . $e->getMessage());
     }
     foreach ((array) $roles as $role) {
         $params['items'][] = array($role['customer_group_code'], $role['customer_group_id']);
     }
 }