document = baseService.getEntityById(Document.class, this.getId());
DocumentStatus status = document.getStatus();
if (status != null) {
statusID = status.getId();
}
DocumentCategory category = document.getCategory();
if (category != null) {
categoryID = category.getId();
}
DocumentSubCategory subCategory = document.getSub_category();
if (subCategory != null) {
subCategoryID = subCategory.getId();