采购验退的采购单号如果找不到单据，采购单号设为null

git-svn-id: svn+ssh://10.10.101.21/source/platform/platform-b2b@10099 f3bf4e98-0cf0-11e4-a00c-a99a8b9d557d

src/main/java/com/uas/platform/b2b/erp/service/impl/PurchaseProdInOutServiceImpl.java

@@ -132,6 +132,9 @@ public class PurchaseProdInOutServiceImpl implements PurchaseProdInOutService {
 							returnItem.setProduct(purchaseOrderItems.get(0).getProduct());
 							returnItem.setProdId(purchaseOrderItems.get(0).getProductId());
 							returnItem.setProdCode(purchaseOrderItems.get(0).getProduct().getCode());
+						} else {
+							// 如果采购单号不存在，设置为空值
+							returnItem.getOrderItem().getOrder().setCode(null);
 						}
 					} else {
 						List<Product> prod = productDao.findByEnUUAndCode(enUU, returnItem.getProdCode());