EF Core: Manual change detection

marcwittke · Jul 28, 2020 · bff27a6 · bff27a6
1 parent 739e2de
commit bff27a6
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diff --git a/src/implementations/Backend.Fx.EfCorePersistence/DbContextExtensions.cs b/src/implementations/Backend.Fx.EfCorePersistence/DbContextExtensions.cs
@@ -102,6 +102,9 @@ public static void UpdateTrackingProperties(this DbContext dbContext, string use
                                 Logger.Trace("tracking that {0}[{1}] was modified by {2} at {3:T} UTC", entity.GetType().Name, entity.Id, userId, utcNow);
                             }
                             entity.SetModifiedProperties(userId, utcNow);
+                            
+                            // this line causes the recent changes of tracking properties to be detected before flushing
+                            entry.State = EntityState.Modified;
                         }
                     }
                     catch (Exception ex)

diff --git a/src/implementations/Backend.Fx.EfCorePersistence/EfUnitOfWork.cs b/src/implementations/Backend.Fx.EfCorePersistence/EfUnitOfWork.cs
@@ -17,12 +17,14 @@ public EfUnitOfWork(IClock clock, ICurrentTHolder<IIdentity> identityHolder, IDo
             : base(clock, identityHolder, eventAggregator, eventBusScope)
         {
             DbContext = dbContext;
+            DbContext.ChangeTracker.AutoDetectChangesEnabled = false;
         }
 
         public DbContext DbContext { get; }
 
         public override void Flush()
         {
+            DbContext.ChangeTracker.DetectChanges();
             base.Flush();
             DbContext.SaveChanges();
         }