private void TrackAddedEntities(StateManager stateManager, IEnumerable <object> addedEntities)
{
foreach (var addedEntity in addedEntities)
{
var addedEntry = stateManager.GetOrCreateEntry(addedEntity);
if (addedEntry.EntityState == EntityState.Unknown)
{
addedEntry.SetEntityState(EntityState.Added);
}
}
}
private async Task TrackAddedEntitiesAsync(
StateManager stateManager,
IEnumerable <object> addedEntities,
CancellationToken cancellationToken = default(CancellationToken))
{
foreach (var addedEntity in addedEntities)
{
var addedEntry = stateManager.GetOrCreateEntry(addedEntity);
if (addedEntry.EntityState == EntityState.Unknown)
{
await addedEntry.SetEntityStateAsync(
EntityState.Added, acceptChanges : false, cancellationToken : cancellationToken).WithCurrentCulture();
}
}
}
public virtual IEnumerable <EntityEntry> TraverseGraph([NotNull] object entity)
{
Check.NotNull(entity, "entity");
var entry = new EntityEntry(_context.Service, _stateManager.GetOrCreateEntry(entity));
if (entry.State != EntityState.Unknown)
{
yield break;
}
yield return(entry);
if (entry.State != EntityState.Unknown)
{
var navigations = entry.StateEntry.EntityType.Navigations;
foreach (var navigation in navigations)
{
var navigationValue = entry.StateEntry[navigation];
if (navigationValue != null)
{
if (navigation.IsCollection())
{
foreach (var relatedEntity in (IEnumerable)navigationValue)
{
foreach (var relatedEntry in TraverseGraph(relatedEntity))
{
yield return(relatedEntry);
}
}
}
else
{
foreach (var relatedEntry in TraverseGraph(navigationValue))
{
yield return(relatedEntry);
}
}
}
}
}
}
public virtual EntityEntry <TEntity> Entry <TEntity>([NotNull] TEntity entity)
{
Check.NotNull(entity, "entity");
return(new EntityEntry <TEntity>(_stateManager.GetOrCreateEntry(entity)));
}
