public ScheduledEvent(Course course, Lection lection, Test test, DateTime date, Teacher teacher)
{
Course = course;
Lection = lection;
Test = test;
Date = date;
CreationDate = DateTime.Now;
Creator = teacher;
}
public LectionResult(Lection lection, Student student, int mark, int addMark, DateTime date, Course course, bool visited)
{
Lection = lection;
Student = student;
Mark = mark;
AdditionalMark = addMark;
Date = date;
Course = course;
IsVisited = visited;
}