}
	private void deleteValuationGroupings() {		for (ValuationGrouping valuationGrouping : getGroupings()) {			for (ValuationTeacher valuationTeacher : valuationGrouping.getValuationTeachers()) {				valuationTeacher.delete();			}			for (ValuationCompetenceCourse valuationCompetenceCourse : valuationGrouping.getValuationCompetenceCourses()) {				if(!valuationCompetenceCourse.getIsRealCompetenceCourse()){					valuationCompetenceCourse.delete();				}			}						valuationGrouping.delete();		}	}