public Guid Subscribe(Concept observer, string label, EndemeSet enSetRelationship, Endeme enRelationship, EndemeSet enSet, Endeme en)
{
// --------------------------------------------------------------------------
// Most Concepts will be added to the Observer list
// --------------------------------------------------------------------------
EndemeItem standard = new EndemeItem(null);
if (standard.ItemKey == Guid.Empty)
{
throw new Exception("boom");
}
if (enRelationship.Count > 1 || !enRelationship.Contains('L'))
{
standard = Observer.Add(label, enSetRelationship, enRelationship, observer);
}
if (standard.ItemKey == Guid.Empty)
{
throw new Exception("boom");
}
// --------------------------------------------------------------------------
// A few Concepts will be added to the Friend list
// --------------------------------------------------------------------------
if (enRelationship.Contains('L'))
{
EndemeItem friend = Friend.Add(label, enSet, en, observer);
Observer.ChangeGuid(friend.ItemKey, standard.ItemKey);
}
return(standard.ItemKey);
}