public WeeklyClassStudent(WeeklyClass weeklyClass, long studentId, DateTime dateFrom)
{
WeeklyClass = weeklyClass;
WeeklyClassId = weeklyClass.Id;
StudentId = studentId;
DateFrom = dateFrom;
}
public WeeklyClassStudent(WeeklyClass weeklyClass, Student student, DateTime dateFrom)
{
WeeklyClass = weeklyClass;
WeeklyClassId = weeklyClass.Id;
Student = student;
StudentId = student.Id;
DateFrom = dateFrom;
}