public async Task <DataResult> Handle(Command request, CancellationToken cancellationToken)
{
ClassTime classTime = await _context.ClassTimes.Where(x => x.Id == request.Id)
.Include(x => x.GroupClass)
.FirstOrDefaultAsync(cancellationToken);
ClassTimeAggregate.FromState(classTime)
.WithDate(request.Start, request.End);
//Update order
List <ClassTime> allClasses = await _context.ClassTimes.Where(x => x.Id != request.Id)
.Where(x => x.GroupClassId == classTime.GroupClassId)
.OrderBy(x => x.StartDate)
.ToListAsync(cancellationToken);
allClasses.Add(classTime);
allClasses = allClasses.OrderBy(x => x.StartDate).ToList();
int nextNumber = 1;
allClasses.ForEach(x =>
{
x.NumberOfClass = nextNumber++;
x.NumberOfClasses = classTime.GroupClass.NumberOfClasses;
});
_context.UpdateRange(allClasses);
await _context.SaveChangesAsync(cancellationToken);
return(DataResult.Success());
}