Merge pull request #57 from clintirving/make-save-changes-async-audit…

…able

Context - Added override for SaveChangesAsync

EfYou/DatabaseContext/Context.cs

@@ -12,6 +12,7 @@
 using System.Data.Entity.Infrastructure;
 using System.Data.Entity.ModelConfiguration.Conventions;
 using System.Linq;
+using System.Threading.Tasks;
 using EfYou.Extensions;
 using EfYou.Model.Attributes;
 using EfYou.Model.Enumerations;
@@ -59,6 +60,20 @@ public override int SaveChanges()
             return result;
         }
 
+        public override async Task<int> SaveChangesAsync()
+        {
+            ChangeTracker.DetectChanges();
+
+            var changedEntities = ChangeTracker.Entries().ToList();
+            var originalStates = changedEntities.Select(x => x.State).ToList();
+
+            var result = await base.SaveChangesAsync();
+
+            SaveAudit(changedEntities, originalStates);
+
+            return result;
+        }
+
         public void SetState(object entity, EntityState state)
         {
             Entry(entity).State = state;