protected override bool Filter(IMappedFeature mappedFeature)
{
var recording = mappedFeature as Recording;
bool result = (recording != null);
if (result)
{
DateTime?recordedAt = recording.RecordedAt;
result = (recordedAt != null);
if (result)
{
var dateTime = (DateTime)recordedAt;
int year = dateTime.Year;
int month = dateTime.Month;
if (!YearMonth.ContainsKey(year))
{
YearMonth.Add(year, month);
ChangeHistoricalDate();
}
else
{
YearMonth[year] = month;
}
}
}
return(result);
}