public Task Filter()
{
if (!FilterQuery.IsNullOrEmpty())
{
try
{
if (FilterQuery != _lastFilterQuery)
{
if (_lastFilterQuery.IsNullOrEmpty())
{
_cachedEvents = Events;
}
_lastFilterQuery = FilterQuery;
char[] toTrim = { ' ', '"', '\'' };
var query = FilterQuery.Trim(toTrim);
Events = _dbs.GetEvents(query).ToObservableCollection();
}
}
catch (Newtonsoft.Json.JsonException)
{
throw new FormatException("Incorrect oauth token file format. Restore or delete it and try again");
}
catch (DataException)
{
throw new DataException("Failed to modify database. Verify the connection and try again");
}
}
else if (_cachedEvents != null)
{
Events = _cachedEvents;
}
return(Task.CompletedTask);
}
private EventPeriod <GXEvent>[] FetchEvents(int year)
{
var result = new EventPeriod <GXEvent> [quarter];
var yearEvents = _dbs.GetEvents(e => e.StartDate.Year == year);
for (int i = 1; i <= quarter; i++)
{
Quarter qt;
if (Enum.TryParse("Q" + i, out qt))
{
var quarterEvents = yearEvents.Where(e => (e.StartDate.Month >= 12 / quarter * (i - 1) + 1) &&
(e.StartDate.Month <= 12 / quarter * i))
.OrderBy(e => e.StartDate).ToArray();
result[i - 1] = new EventPeriod <GXEvent>(qt, quarterEvents);
}
}
return(result);
}