private void ClearRelationCache(int?fromId)
{
if (fromId == null)
{
_rootRelations = null;
}
else
{
_relations.Remove(fromId.Value);
}
}
private LinkedList <DbRelation> GetCacheRelationsByParent(int?fromId)
{
CacheRelationList list;
if (fromId == null)
{
list = _rootRelations;
}
else
{
_relations.TryGetValue(fromId.Value, out list);
}
if (list == null)
{
list = new CacheRelationList
{
FromId = fromId
};
var relationsFromDb = _dataService.GetRelations(fromId);
if (relationsFromDb != null)
{
foreach (var relation in relationsFromDb)
{
list.AddLast(relation);
}
}
if (fromId == null)
{
_rootRelations = list;
}
else
{
_relations[fromId.Value] = list;
}
}
return(list);
}
