server/AyaNova/biz/CustomerNoteBiz.cs

@@ -74,12 +74,17 @@ namespace AyaNova.Biz
         //
         internal async Task<CustomerNote> PutAsync(CustomerNote putObject)
         {
-            CustomerNote dbObject = await GetAsync(putObject.Id,false);
+            CustomerNote dbObject = await GetAsync(putObject.Id, false);
             if (dbObject == null)
             {
                 AddError(ApiErrorCode.NOT_FOUND, "id");
                 return null;
             }
+            if (dbObject.Concurrency != putObject.Concurrency)
+            {
+                AddError(ApiErrorCode.CONCURRENCY_CONFLICT);
+                return null;
+            }
 
             putObject.Tags = TagBiz.NormalizeTags(putObject.Tags);
             //no validate required
@@ -100,7 +105,7 @@ namespace AyaNova.Biz
             await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, dbObject.Id, BizType, AyaEvent.Modified), ct);
             await SearchIndexAsync(putObject, false);
             await TagBiz.ProcessUpdateTagsInRepositoryAsync(ct, putObject.Tags, dbObject.Tags);
-            return dbObject;
+            return putObject;
         }
 
         ////////////////////////////////////////////////////////////////////////////////////////////////