private void UpdateEntry <TEntity>(IEntityWrapper wrappedEntity, EntityEntry existingEntry)
{
Type type = typeof(TEntity);
if (type != existingEntry.WrappedEntity.IdentityType)
{
EntityKey entityKey = existingEntry.EntityKey;
throw new NotSupportedException(Strings.Materializer_RecyclingEntity((object)TypeHelpers.GetFullName(entityKey.EntityContainerName, entityKey.EntitySetName), (object)type.FullName, (object)existingEntry.WrappedEntity.IdentityType.FullName, (object)entityKey.ConcatKeyValue()));
}
if (EntityState.Added == existingEntry.State)
{
throw new InvalidOperationException(Strings.Materializer_AddedEntityAlreadyExists((object)existingEntry.EntityKey.ConcatKeyValue()));
}
if (this.MergeOption == MergeOption.AppendOnly)
{
return;
}
if (MergeOption.OverwriteChanges == this.MergeOption)
{
if (EntityState.Deleted == existingEntry.State)
{
existingEntry.RevertDelete();
}
existingEntry.UpdateCurrentValueRecord(wrappedEntity.Entity);
this.Context.ObjectStateManager.ForgetEntryWithConceptualNull(existingEntry, true);
existingEntry.AcceptChanges();
this.Context.ObjectStateManager.FixupReferencesByForeignKeys(existingEntry, true);
}
else if (EntityState.Unchanged == existingEntry.State)
{
existingEntry.UpdateCurrentValueRecord(wrappedEntity.Entity);
this.Context.ObjectStateManager.ForgetEntryWithConceptualNull(existingEntry, true);
existingEntry.AcceptChanges();
this.Context.ObjectStateManager.FixupReferencesByForeignKeys(existingEntry, true);
}
else if (this.Context.ContextOptions.UseLegacyPreserveChangesBehavior)
{
existingEntry.UpdateRecordWithoutSetModified(wrappedEntity.Entity, (DbUpdatableDataRecord)existingEntry.EditableOriginalValues);
}
else
{
existingEntry.UpdateRecordWithSetModified(wrappedEntity.Entity, (DbUpdatableDataRecord)existingEntry.EditableOriginalValues);
}
}
public IEntityWrapper HandleEntityAppendOnly <TEntity>(
Func <Shaper, IEntityWrapper> constructEntityDelegate,
EntityKey entityKey,
EntitySet entitySet)
{
IEntityWrapper entityWrapper;
if ((object)entityKey == null)
{
entityWrapper = constructEntityDelegate(this);
this.RegisterMaterializedEntityForEvent(entityWrapper);
}
else
{
EntityEntry entityEntry = this.Context.ObjectStateManager.FindEntityEntry(entityKey);
if (entityEntry != null && !entityEntry.IsKeyEntry)
{
if (typeof(TEntity) != entityEntry.WrappedEntity.IdentityType)
{
EntityKey entityKey1 = entityEntry.EntityKey;
throw new NotSupportedException(Strings.Materializer_RecyclingEntity((object)TypeHelpers.GetFullName(entityKey1.EntityContainerName, entityKey1.EntitySetName), (object)typeof(TEntity).FullName, (object)entityEntry.WrappedEntity.IdentityType.FullName, (object)entityKey1.ConcatKeyValue()));
}
if (EntityState.Added == entityEntry.State)
{
throw new InvalidOperationException(Strings.Materializer_AddedEntityAlreadyExists((object)entityEntry.EntityKey.ConcatKeyValue()));
}
entityWrapper = entityEntry.WrappedEntity;
}
else
{
entityWrapper = constructEntityDelegate(this);
this.RegisterMaterializedEntityForEvent(entityWrapper);
if (entityEntry == null)
{
this.Context.ObjectStateManager.AddEntry(entityWrapper, entityKey, entitySet, "HandleEntity", false);
}
else
{
this.Context.ObjectStateManager.PromoteKeyEntry(entityEntry, entityWrapper, false, true, false);
}
}
}
return(entityWrapper);
}