public bool DeleteCourse(int id)
{
if (_courseRepository.Records.Any(x => x.Id == id))
{
var studentCourse = _studentCourseRepository.Records.Where(x => x.CourseId == id).ToList();
foreach (var item in studentCourse)
{
var student = _studentRepository.GetById(item.StudentId);
student.Credit += 4;
_studentRepository.Update(student);
_studentCourseRepository.Delete(item);
}
var lecturerCourse = _lecturerCourseRepository.Records.Where(x => x.CourseId == id).ToList();
foreach (var item in lecturerCourse)
{
_lecturerCourseRepository.Delete(item);
}
_courseRepository.Delete(_courseRepository.GetById(id));
return(true);
}
else
{
return(false);
}
}
public bool Delete(int id)
{
if (_lecturerRepository.Records.Any(x => x.Id == id))
{
var courses = _lecturerCourseRepository.Records.Where(x => x.CourseId == id).ToList();
foreach (var course in courses)
{
_lecturerCourseRepository.Delete(course);
}
_lecturerRepository.Delete(_lecturerRepository.GetById(id));
return(true);
}
else
{
return(false);
}
}
public void UnteachCourse(int lecturerId, int courseId)
{
var lc = _lecturerCourseRepository.Records.FirstOrDefault(x => x.LecturerId == lecturerId && x.CourseId == courseId);
if (lc != null)
{
_lecturerCourseRepository.Delete(lc);
}
}