public bool DelTeaching(int lecturerId, int courseId)
{
Teaching teaching = _ctx.Teachings.Find(lecturerId, courseId);
if (teaching != null)
{
_ctx.Teachings.Remove(teaching);
}
return(save()
);
}
public void AddTeaching(int lecturerId, int courseId)
{
Lecturer lecturer = _ctx.Lecturers.Find(lecturerId);
Course course = _ctx.Courses.Find(courseId);
Teaching teaching = new Teaching
{
LecturerId = lecturerId,
CourseId = courseId,
Lecturer = lecturer,
Course = course
};
_ctx.Teachings.Add(teaching);
save();
}