Fix Audit + Batch Update for enum and Oracle

Fix Audit + Batch Update for enum and Oracle

Author: zzzprojects

src/shared/Z.EF.Plus.Audit.Shared/AuditConfiguration/IsAuditedEntity.cs

@@ -29,7 +29,7 @@ public bool IsAuditedEntity(ObjectStateEntry entry)
         public bool IsAuditedEntity(EntityEntry entry)
 #endif
         {
-            if (ExcludeIncludeEntityPredicates.Count == 0)
+            if (ExcludeIncludeEntityPredicates.Count == 0 || entry.Entity == null)
             {
                 return true;
             }

src/shared/Z.EF.Plus.BatchUpdate.Shared/BatchUpdate.cs

@@ -574,7 +574,14 @@ internal DbCommand CreateCommand<T>(ObjectQuery query, SchemaEntityType<T> entit
                 }
                 else
                 {
-                    parameter.Value = paramValue ?? DBNull.Value;
+                    if (values[i].Item2.GetType().IsEnum)
+                    {
+                        parameter.Value = (int) paramValue;
+                    }
+                    else
+                    {
+                        parameter.Value = paramValue ?? DBNull.Value;
+                    }
                 }