@Override
public void removeRequiredCourseFromDegree(int degreeId, int courseId) {
Degree degree = degreeDao.getDegree(degreeId);
Course course = courseDao.getCourse(courseId);
degree.getRequiredCourses().remove(course);
degreeDao.saveDegree(degree);
}
@Override
public void addRequiredCourseToDegree(int degreeId, int courseId) {
Degree degree = degreeDao.getDegree(degreeId);
Course course = courseDao.getCourse(courseId);
degree.getRequiredCourses().add(course);
degreeDao.saveDegree(degree);
}