private static void Expand <IParentEntity, IUniqueEntity>(IModel model, Func <IParentEntity, ICollection <IUniqueEntity> > accessor) where IParentEntity : IPersistEntity where IUniqueEntity : IPersistEntity
{
//get duplicates in one go to avoid exponential search
var candidates = new Dictionary <IUniqueEntity, List <IParentEntity> >();
foreach (var entity in model.Instances.OfType <IParentEntity>())
{
foreach (var val in accessor(entity))
{
List <IParentEntity> assets;
if (!candidates.TryGetValue(val, out assets))
{
assets = new List <IParentEntity>();
candidates.Add(val, assets);
}
assets.Add(entity);
}
}
var multi = candidates.Where(a => a.Value.Count > 1);
var map = new XbimInstanceHandleMap(model, model);
foreach (var kvp in multi)
{
var value = kvp.Key;
var entities = kvp.Value;
//skip the first
for (int i = 1; i < entities.Count; i++)
{
//clear map to create complete copy every time
map.Clear();
var copy = model.InsertCopy(value, map, null, false, false);
//remove original and add fresh copy
var entity = entities[i];
var collection = accessor(entity);
collection.Remove(value);
collection.Add(copy);
}
}
}
