public LearningElementDto getSpecificLearningElement(String id) throws UnknownHostException {
   LearningElement leModel = dao.getSpecificLearningElement(id);
   LearningElementDto dto = new LearningElementDto();
   if (leModel != null) {
     dto.setId(leModel.getId());
     dto.setTitle(leModel.getTitle());
     dto.setDescription(leModel.getDescription());
     dto.setSubject(leModel.getSubject());
     dto.setUploadDate(leModel.getUploadDate());
     dto.setDownloads(leModel.getDownloads());
     dto.setRating(leModel.getRating());
     dto.setRev(leModel.getRev());
     dto.setStatus(leModel.getStatus());
     dto.setComments(leModel.getComments());
     dto.setUploadedBy(leModel.getUploadedBy());
     dto.setFilePath(leModel.getFilePath());
   }
   return dto;
 }