internal override void Exclude()
{
if (null != _wrappedRelatedEntities && null != this.ObjectContext)
{
if (!IsForeignKey)
{
foreach (IEntityWrapper wrappedEntity in _wrappedRelatedEntities.Values)
{
ExcludeEntity(wrappedEntity);
}
}
else
{
TransactionManager tm = ObjectContext.ObjectStateManager.TransactionManager;
Debug.Assert(tm.IsAddTracking || tm.IsAttachTracking, "Exclude being called while not part of attach/add rollback--PromotedEntityKeyRefs will be null.");
List <IEntityWrapper> values = new List <IEntityWrapper>(_wrappedRelatedEntities.Values);
foreach (IEntityWrapper wrappedEntity in values)
{
EntityReference otherEnd = GetOtherEndOfRelationship(wrappedEntity) as EntityReference;
Debug.Assert(otherEnd != null, "Other end of FK from a collection should be a reference.");
bool doFullRemove = tm.PopulatedEntityReferences.Contains(otherEnd);
bool doRelatedEndRemove = tm.AlignedEntityReferences.Contains(otherEnd);
if (doFullRemove || doRelatedEndRemove)
{
// Remove the related ends and mark the relationship as deleted, but don't propagate the changes to the target entity itself
otherEnd.Remove(otherEnd.CachedValue,
doFixup: doFullRemove,
deleteEntity: false,
deleteOwner: false,
applyReferentialConstraints: false,
preserveForeignKey: true);
// Since this has been processed, remove it from the list
if (doFullRemove)
{
tm.PopulatedEntityReferences.Remove(otherEnd);
}
else
{
tm.AlignedEntityReferences.Remove(otherEnd);
}
}
else
{
ExcludeEntity(wrappedEntity);
}
}
}
}
}
