public string Delete(Course course)
{
if (_courseRepository.Records.Any(c => c.Id == course.Id))
{
if (_lectureCourseRepository.Records.Any(lc => lc.CourseId == course.Id))
{
var lecturecourses = _lectureCourseRepository.Records.Where(lc => lc.CourseId == course.Id);
_lectureCourseRepository.Records.RemoveRange(lecturecourses);
_lectureCourseRepository.SaveChanges();
}
//--------------------------------------------------------------
if (_studentCourseRepository.Records.Any(sc => sc.CourseId == course.Id))
{
var studentcourses = _studentCourseRepository.Records.Where(sc => sc.CourseId == course.Id);
_studentCourseRepository.Records.RemoveRange(studentcourses);
_studentCourseRepository.SaveChanges();
}
//----------------------------------------------------------------
_courseRepository.Delete(course);
return("successfully deleted");
}
else
{
return("failed");
}
}
public string Delete(Student student)
{
if (_studentRepository.Records.Any(s => s.Id == student.Id))
{
if (_studentCourseRepository.Records.Any(sc => sc.StudentId == student.Id))
{
var studentcourses = _studentCourseRepository.Records.Where(sc => sc.StudentId == student.Id);
_studentCourseRepository.Records.RemoveRange(studentcourses);
_studentCourseRepository.SaveChanges();
}
_studentRepository.Delete(student);
return("successfully deleted");
}
else
{
return("No such student");
}
}