public static IEnumerable <IRelationById> GetRelations(this ICoreReadonlyRelationsRepository session, HiveId sourceId, Direction direction, RelationType relationType = null)
{
switch (direction)
{
case Direction.Ancestors:
return(session.GetAncestorRelations(sourceId, relationType));
case Direction.Children:
return(session.GetChildRelations(sourceId, relationType));
case Direction.Descendents:
return(session.GetDescendentRelations(sourceId, relationType));
case Direction.Parents:
return(session.GetParentRelations(sourceId, relationType));
}
return(Enumerable.Empty <IReadonlyRelation <IRelatableEntity, IRelatableEntity> >());
}
public static IEnumerable <IRelationById> GetAncestorRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity descendent, RelationType relationType = null)
{
Mandate.ParameterNotNull(descendent, "descendent");
return(session.GetAncestorRelations(descendent.Id, relationType));
}
private static HiveId[] GetAncestorRelationSourceIds(this ICoreReadonlyRelationsRepository session, RelationType relationType, HiveId sourceId)
{
return(session.GetAncestorRelations(sourceId, relationType).Select(x => x.SourceId).ToArray());
}