public void AddSubjectForProfessor(Professor professor, Subject subject)
{
_db.Professors.Attach(professor);
_db.Subjects.Attach(subject);
professor.Subjects.Add(subject);
_db.SaveChanges();
}
public void UpdateProfessor(Professor professor)
{
_db.Professors.Attach(professor);
_db.SaveChanges();
}
public void InsertProfessor(Professor professor)
{
_db.Professors.Add(professor);
_db.SaveChanges();
}