private void LoadHistory(IEAElement element)
{
History.Clear();
IEnumerable <IHistoryEntry> entries = element.GetTaggedValuesByName(EATaggedValueKeys.DecisionStateChange)
.Select(tv => (IHistoryEntry) new HistoryEntry(this, tv));
foreach (IHistoryEntry entry in entries)
{
History.Add(entry);
}
}
private void SaveHistory(IEAElement element)
{
//first old history needs to be removed but if I do this, then I will delete existing.
//I did not keep track of those that were deleted from the list.
//first need to check which one were deleted, i.e. exist in EAelem but not in this list
IEnumerable <string> removedHistroyEntries =
element.GetTaggedValuesByName(EATaggedValueKeys.DecisionStateChange)
.Select(tv => tv.GUID)
.Except(History.Select(h => h.TaggedValueGUID));
foreach (string tagGUID in removedHistroyEntries)
{
element.RemoveTaggedValueByGUID(tagGUID);
}
foreach (IHistoryEntry historyEntry in History)
{
historyEntry.SaveChanges();
}
}