public override bool ProcessUpdate(Item oldItem, Item newItem)
{
GoogleClient client = new GoogleClient(user, storage);
if (newItem.ItemTypeID != oldItem.ItemTypeID)
{ // remove appointment from Calendar if ItemType changes
ProcessDelete(oldItem);
// base handles ItemType changing
return base.ProcessUpdate(oldItem, newItem);
}
// update appointment on Calendar (if available)
if (client.ConnectToCalendar)
{ // update if Name, DueDate, EndDate, or Description have changed
FieldValue fvOldStart = oldItem.GetFieldValue(FieldNames.DueDate);
FieldValue fvNewStart = newItem.GetFieldValue(FieldNames.DueDate);
FieldValue fvOldEnd = oldItem.GetFieldValue(FieldNames.EndDate);
FieldValue fvNewEnd = newItem.GetFieldValue(FieldNames.EndDate);
FieldValue fvOldDesc = oldItem.GetFieldValue(FieldNames.Description);
FieldValue fvNewDesc = newItem.GetFieldValue(FieldNames.Description);
string oldDesc = (fvOldDesc == null) ? null : fvOldDesc.Value;
string newDesc = (fvNewDesc == null) ? null : fvNewDesc.Value;
if (newItem.Name != oldItem.Name || newDesc != oldDesc ||
(fvNewStart != null && !string.IsNullOrEmpty(fvNewStart.Value) && (fvOldStart == null || fvNewStart.Value != fvOldStart.Value)) ||
(fvNewEnd != null && !string.IsNullOrEmpty(fvNewEnd.Value) && (fvOldEnd == null || fvNewEnd.Value != fvOldEnd.Value)))
{
if (fvNewStart != null && fvNewEnd != null)
{
return client.UpdateCalendarEvent(newItem);
}
}
}
return false;
}
