public Course RemoveLecturer(int courseId, int lecturerId)
{
var course = _courseRepository.GetById(courseId);
var lecturer = _userRepository.GetById(lecturerId);
if (course == null || lecturer == null || !UserServices.IsUserLecturer(lecturer))
{
return(null);
}
course.LecturersInCharge.Remove((Lecturer)lecturer);
return(_courseRepository.Update(course));
}
public List <Course> GetCoursesByLecturerId(int id)
{
var lecturer = _userRepository.GetById(id);
if (lecturer == null || !UserServices.IsUserLecturer(lecturer))
{
return(null);
}
var courses = _courseRepository.GetByLecturerInChargerId(id);
if (courses == null)
{
return(null);
}
var coursesList = courses.ToList();
coursesList.Sort((c1, c2) => c1.Name.CompareTo(c2.Name));
return(coursesList);
}