fix

@@ -667,7 +667,8 @@ public class MealOrderGrpcService extends MealOrderServiceRpcGrpc.MealOrderServi
                                         final StreamObserver<BatchSaveOrUpdateDinersRpcResponse> responseObserver) {
         final var builder = BatchSaveOrUpdateDinersRpcResponse.newBuilder();
         try {
-            final var diners = new ArrayList<Diner>();
+            final var saveBatch = new ArrayList<Diner>();
+            final var updateBatch = new ArrayList<Diner>();
             for (DinerModification modification : request.getModificationsList()) {
                 Diner diner = new Diner();
                 diner.setId(modification.getId() == 0 ? null : modification.getId());
@@ -690,9 +691,13 @@ public class MealOrderGrpcService extends MealOrderServiceRpcGrpc.MealOrderServi
                 if (modification.getShouldUpdateName()) {
                     diner.setName(modification.getName());
                 }
-                diners.add(diner);
+                if (modification.getId() == 0) {
+                    saveBatch.add(diner);
+                } else {
+                    updateBatch.add(diner);
+                }
             }
-            builder.setIsUpdated(dinerService.saveOrUpdateBatch(diners));
+            builder.setIsUpdated(dinerService.saveBatch(saveBatch) && dinerService.updateBatchById(updateBatch));
         } catch (final Exception e) {
             log.error("batchSaveOrUpdateDiners error;", e);
             responseObserver.onError(Status.INTERNAL.withDescription(e.getMessage()).asException());
@@ -953,7 +958,8 @@ public class MealOrderGrpcService extends MealOrderServiceRpcGrpc.MealOrderServi
                                               final StreamObserver<BatchSaveOrUpdateGradeClassesRpcResponse> responseObserver) {
         final var builder = BatchSaveOrUpdateGradeClassesRpcResponse.newBuilder();
         try {
-            List<GradeClass> gradeClasses = new ArrayList<>();
+            List<GradeClass> saveBatch = new ArrayList<>();
+            List<GradeClass> updateBatch = new ArrayList<>();
             for (final var modification : request.getModificationsList()) {
                 GradeClass gradeClass = new GradeClass();
                 gradeClass.setId(modification.getId() == 0 ? null : modification.getId());
@@ -973,9 +979,13 @@ public class MealOrderGrpcService extends MealOrderServiceRpcGrpc.MealOrderServi
                 if (modification.getShouldUpdateGradeName()) {
                     gradeClass.setGradeName(modification.getGradeName());
                 }
-                gradeClasses.add(gradeClass);
+                if (modification.getId() == 0) {
+                    saveBatch.add(gradeClass);
+                } else {
+                    updateBatch.add(gradeClass);
+                }
             }
-            builder.setIsUpdated(gradeClassService.saveOrUpdateBatch(gradeClasses));
+            builder.setIsUpdated(gradeClassService.saveBatch(saveBatch) && gradeClassService.updateBatchById(updateBatch));
         } catch (final Exception e) {
             log.error("updateGradeClass error;", e);
             responseObserver.onError(Status.INTERNAL.withDescription(e.getMessage()).asException());