public void UpdateRange(IEnumerable <PeriodDate> periodDates)
{
ValidatePeriodDates(periodDates);
var term = TermService.Get(GetTermIdFromPeriodDates(periodDates));
term.PeriodDates = periodDates.ToList();
TermService.Update(term);
}
private void ValidatePeriodDates(IEnumerable <PeriodDate> periodDates)
{
if (periodDates.Count() < totalNumberOfPeriods)
{
throw new ArgumentNullException("periodDates");
}
var term = TermService.Get(GetTermIdFromPeriodDates(periodDates));
var outsideTermRange = periodDates
.Count(pd => pd.StartDate <term.StartDate || pd.EndDate> term.EndDate);
if (outsideTermRange > 0)
{
throw new ArgumentException("A period date is not between the term star and end dates.");
}
if (periodDates.Count(pd => pd.StartDate > pd.EndDate) > 0)
{
throw new ArgumentException("A period start date is greater its end date.");
}
if (periodDates.Count(pd => pd.StartDate.Equals(pd.EndDate)) > 0)
{
throw new ArgumentException("A period start date is equals to its end date.");
}
var periodIds = periodDates.Select(p => p.PeriodId).ToList();
for (int i = totalNumberOfPeriods; i > 0; i--)
{
var periodDate = periodDates.SingleOrDefault(pd => pd.PeriodId == i);
var overlaps = periodDates
.Where(pd => pd.EndDate >= periodDate.StartDate && pd.PeriodId != periodDate.PeriodId && periodIds.Contains(pd.PeriodId));
if (overlaps.Count() > 0)
{
throw new ArgumentException("A period dates' range ovelaps with another period dates' range.");
}
periodIds.Remove(i);
}
}
private void SetOfferingProperties(Offering offering)
{
offering.Course = CourseService.Get(offering.CourseId);
offering.Professor = ProfessorService.Get(offering.ProfessorId);
offering.Term = TermService.Get(offering.TermId);
}