protected void selectDefaultDisciplina() {
   disciplinaBO.open();
   Disciplina disciplinaDefault = null;
   try {
     disciplinaDefault = disciplinaBO.selectOneById(ParametersBusn.ID_DISCIPLINA_DEFAULT);
   } catch (QueryModelException e) {
     e.printStackTrace();
   }
   if (disciplinaDefault != null) {
     Spinner spnDisciplinas = getDisciplinasSpinner();
     spnDisciplinas.setSelection(disciplinasAdapter.getPosition(disciplinaDefault));
   }
 }