public IActionResult EditCourses(int StudentId, List <EditStudentCoursesViewModel> model)
{
if (StudentId == 0)
{
return(View("NotFound"));
}
for (int i = 0; i < model.Count; i++)
{
if (model[i].IsSelected == true && !(studentCourseRepository.IsRelationExist(StudentId, model[i].CourseId)))
{
var studentCourseRelation = new StudentCourseRelation
{
StudentId = StudentId,
CourseId = model[i].CourseId
};
studentCourseRepository.Add(studentCourseRelation);
}
else if (model[i].IsSelected == false && studentCourseRepository.IsRelationExist(StudentId, model[i].CourseId))
{
studentCourseRepository.Delete(StudentId, model[i].CourseId);
}
else
{
continue;
}
}
return(RedirectToAction("Details", new { id = StudentId }));
}
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 (_studentRepository.Records.Any(x => x.Id == id))
{
var courses = _studentCourseRepository.Records.Where(x => x.StudentId == id).ToList();
foreach (var course in courses)
{
_studentCourseRepository.Delete(course);
}
_studentRepository.Delete(_studentRepository.GetById(id));
return(true);
}
else
{
return(false);
}
}