// BUG 2748 联动单位无法保存 bykongfm

amos-boot-module/amos-boot-module-biz/amos-boot-module-common-biz/src/main/java/com/yeejoin/amos/boot/module/common/biz/service/impl/LinkageUnitServiceImpl.java

@@ -211,13 +211,15 @@ public class LinkageUnitServiceImpl extends BaseService<LinkageUnitDto, LinkageU
 		updateWithModel(linkageUnitDto);
 		// 修改行信息
 		Long instanceId = linkageUnitDto.getInstanceId();
-		List<DynamicFormInstance> dynamicFormInstanceList = dynamicFormInstanceService
-				.list(new LambdaQueryWrapper<DynamicFormInstance>().eq(DynamicFormInstance::getInstanceId, instanceId));
-		Map<String, Object> objectMap = Bean.BeantoMap(linkageUnitDto);
-		dynamicFormInstanceList.forEach(item -> item.setFieldValue(
-				objectMap.get(item.getFieldCode()) != null ? objectMap.get(item.getFieldCode()).toString()
-						: item.getFieldValue()));
-		dynamicFormInstanceService.updateBatchById(dynamicFormInstanceList);
+		if(instanceId != null) { // BUG 2748 联动单位无法保存 bykongfm
+			List<DynamicFormInstance> dynamicFormInstanceList = dynamicFormInstanceService
+					.list(new LambdaQueryWrapper<DynamicFormInstance>().eq(DynamicFormInstance::getInstanceId, instanceId));
+			Map<String, Object> objectMap = Bean.BeantoMap(linkageUnitDto);
+			dynamicFormInstanceList.forEach(item -> item.setFieldValue(
+					objectMap.get(item.getFieldCode()) != null ? objectMap.get(item.getFieldCode()).toString()
+							: item.getFieldValue()));
+			dynamicFormInstanceService.updateBatchById(dynamicFormInstanceList);
+		}
 		// 修改照片信息
 		sourceFileServiceImpl.saveSourceFile(linkageUnitDto.getSequenceNbr(), linkageUnitDto.getImage());
 		return linkageUnitDto;