public async Task AddWorkDayAttendeesAsync(int workDayId, List <string> attendeeIds)
{
if (attendeeIds != null)
{
WorkDayDTO workDay = await workDayService.GetByIdAsync(workDayId);
IEnumerable <StudentDTO> students = await studentService.GetStudentsByIds(attendeeIds);
foreach (StudentDTO student in students)
{
workDay.Attendances.Add(new AttendanceDTO {
Student = student, Come = DateTime.Now
});
}
await workDayService.SaveChangesAsync();
}
}
