code: public boolean saveIt() {
          boolean result = save();
          ModelDelegate.purgeEdges(metaModelLocal);
          if (!errors.isEmpty()) {
              throw new ValidationException(this);
          }
          return result;
      }
docs: This method will not exit silently like {@link #save()}, it instead will throw {@link org.javalite.activejdbc.validation.ValidationException}
  if validations did not pass.
  
  @return  true if the model was saved, false if you set an ID value for the model, but such ID does not exist in DB.