public static PartialDateRange Map(this IHavePartialDateRangeEntity entity)
{
if (entity == null)
{
return(null);
}
// 1st possibility, no start or end date but is current.
if (entity.startDate == null && entity.startDateParts == null &&
entity.endDate == null && entity.endDateParts == null &&
entity.isCurrent)
{
return(new PartialDateRange());
}
// 2nd possibility, a start date but no end date/is current.
if (entity.startDate != null && entity.startDateParts != null &&
entity.endDate == null && entity.endDateParts == null)
{
return(new PartialDateRange(GetPartialDate(entity.startDate.Value, entity.startDateParts.Value)));
}
// 3rd possibility, no start date but does have an end date.
if (entity.startDate == null && entity.startDateParts == null &&
entity.endDate != null && entity.endDateParts != null)
{
return(new PartialDateRange(null, GetPartialDate(entity.endDate.Value, entity.endDateParts.Value)));
}
// 4th possibility, start date and end date.
if (entity.startDate != null && entity.startDateParts != null &&
entity.endDate != null && entity.endDateParts != null)
{
return(new PartialDateRange(GetPartialDate(entity.startDate.Value, entity.startDateParts.Value), GetPartialDate(entity.endDate.Value, entity.endDateParts.Value)));
}
// No other combination supported.
return(null);
}
public static void MapTo(this PartialDateRange partialDateRange, IHavePartialDateRangeEntity entity)
{
if (partialDateRange == null)
{
entity.startDate = null;
entity.startDateParts = null;
entity.endDate = null;
entity.endDateParts = null;
entity.isCurrent = false;
return;
}
// Convert the dates first to deal with errors etc.
DateTime? startDate;
DateParts?startDateParts;
DateTime? endDate;
DateParts?endDateParts;
partialDateRange.Start.MapTo(out startDate, out startDateParts);
partialDateRange.End.MapTo(out endDate, out endDateParts);
// 1st possibility, no start or end date.
if (startDate == null && endDate == null)
{
entity.startDate = null;
entity.startDateParts = null;
entity.endDate = null;
entity.endDateParts = null;
entity.isCurrent = true;
return;
}
// 2nd possibility, a start date but no end date.
if (startDate != null && endDate == null)
{
entity.startDate = startDate;
entity.startDateParts = (byte?)startDateParts;
entity.endDate = null;
entity.endDateParts = null;
entity.isCurrent = true;
return;
}
// 3rd possibility, no start date but does have an end date.
if (startDate == null)
{
entity.startDate = null;
entity.startDateParts = null;
entity.endDate = endDate;
entity.endDateParts = (byte?)endDateParts;
entity.isCurrent = false;
return;
}
// 4th possibility, start date and end date.
entity.startDate = startDate;
entity.startDateParts = (byte?)startDateParts;
entity.endDate = endDate;
entity.endDateParts = (byte?)endDateParts;
entity.isCurrent = false;
}