[TYPO3-mvc] Tx_Extbase_Persistence_Repository->add() does not work

[Alexander Dick]

Hi List,

I have a problem with the add method of the Extbase Persistence Repository - my
data does not get inserted in the database!

Simplified code:

OrderItemController.php:

    $this->orderItemRepository =
&t3lib_div::makeInstance('Tx_XXX_Domain_Repository_OrderItemRepository');

    public function updateAction() {

        $data = $this->request->getArguments();
        $orderItem = $this->createOrderItem($data);

        $this->orderItemRepository->add($orderItem);
    }

    /**
     * @param array
     * @return Tx_XXX_Domain_Model_OrderItem
     */
    protected function createOrderItem($data) {

        $orderItem = new Tx_XXX_Domain_Model_OrderItem();
        $orderItem->setName($data['firstName'] . ' '. $data['lastName']);

        return $orderItem;
    }

OrderItem.php (the model, simplified)

class Tx_XXX_Domain_Model_OrderItem extends Tx_Extbase_DomainObject_AbstractEntity {

    /**
     * @var string
     */
    protected $name;

    /**
     * @return string
     */
    public function getName() {
        return $this->name;
    }

    /**
     * @param string
     */
    public function setName($val) {
        $this->name = $val;
    }
}


There is no error and no special output, and
$this->orderItemRepository->add($orderItem) gets definately called.

# Plugin configuration
plugin.tx_XXX {

  persistence {

    classes {

       Tx_XXX_Domain_Model_OrderItem {
          newRecordStoragePid = 44
          mapping {
            tableName = tx_XXX_domain_model_order_item
          }
       }

    }
  }
}

I really have no idea what's wrong. Please someone help me.

cheers
Alex