public void Save()
{
foreach (T newObj in NewObjects)
{
Storage.Add(newObj);
}
foreach (T deletedObj in RemovedIds.Select(id => this.Find(id)))
{
Storage.Remove(deletedObj);
}
Storage.Save();
}
public ChangeSet(ValueChange <TParentToken> parentToken, ValueChange <IEnumerable <TChildToken> > childTokens)
{
OldIds = Ids(childTokens.OldValue).ToArray();
NewIds = Ids(childTokens.NewValue).ToArray();
RemovedIds = Ids(ExceptIds(childTokens.OldValue, NewIds)).ToArray();
AddedIds = Ids(ExceptIds(childTokens.NewValue, OldIds)).ToArray();
PersistentIds = NewIds.Intersect(OldIds).ToArray();
var persistedOld = IntersectIds(childTokens.OldValue, PersistentIds).OrderBy(t => t.Id);
var persistedNew = IntersectIds(childTokens.NewValue, PersistentIds).OrderBy(t => t.Id);
var persistedPairs = persistedOld.Zip(persistedNew, ValueChange.Create);
Diffs = persistedPairs.Where(vc => vc.IsChanged()).ToArray();
AddedChanges = AddedIds.Select(id => Change.Added(parentToken.NewValue.Id, id)).ToArray();
RemovedChanges = RemovedIds.Select(id => Change.Removed(parentToken.NewValue.Id, id)).ToArray();
}