public Date getToDate() {
   if (toDate != null && toDate.getDate() != null) {
     return toDate.getDate();
   } else {
     return null;
   }
 }
 public Date getFromDate() {
   if (fromDate != null && fromDate.getDate() != null) {
     return fromDate.getDate();
   } else {
     return null;
   }
 }
 @Override
 @SuppressWarnings("unused")
 protected boolean validateFormLogic(UserRequest ureq) {
   boolean retVal = true;
   // datefields are valid
   // check complex rules involving checks over multiple elements
   Date fromDateVal = fromDate.getDate();
   Date toDateVal = toDate.getDate();
   if (!fromDate.hasError() && !toDate.hasError()) {
     // check valid dates
     // if both are set, check from < to
     if (fromDateVal != null && toDateVal != null) {
       /*
        * bugfix http://bugs.olat.org/jira/browse/OLAT-813 valid dates and not
        * empty, in easy mode we assume that Start and End date should
        * implement the meaning of
        * ----false---|S|-----|now|-TRUE---------|E|---false--->t .............
        * Thus we check for Startdate < Enddate, error otherwise
        */
       if (fromDateVal.after(toDateVal)) {
         fromDate.setTranslator(
             Util.createPackageTranslator(
                 org.olat.course.condition.Condition.class,
                 ureq.getLocale(),
                 fromDate.getTranslator()));
         fromDate.setErrorKey("form.easy.error.bdateafteredate", null);
         retVal = false;
       }
     } else {
       if (fromDateVal == null && !fromDate.isEmpty()) {
         // not a correct begin date
         fromDate.setTranslator(
             Util.createPackageTranslator(
                 org.olat.course.condition.Condition.class,
                 ureq.getLocale(),
                 fromDate.getTranslator()));
         fromDate.setErrorKey("form.easy.error.bdate", null);
         retVal = false;
       }
       if (toDateVal == null && !toDate.isEmpty()) {
         toDate.setTranslator(
             Util.createPackageTranslator(
                 org.olat.course.condition.Condition.class,
                 ureq.getLocale(),
                 toDate.getTranslator()));
         toDate.setErrorKey("form.easy.error.edate", null);
         retVal = false;
       }
     }
   }
   return retVal;
 }