/**
  * @param string $id
  * @return string
  * @throws BaseEnvironmentMeasuringUnitCategoryIDMissingException
  * @throws BaseUserAccessDeniedException
  */
 public static function delete_measuring_unit_category($id)
 {
     global $user;
     if ($user->is_admin()) {
         if (is_numeric($id)) {
             $measuring_unit_category = new MeasuringUnitCategory($id);
             if ($measuring_unit_category->delete() == true) {
                 return "1";
             } else {
                 return "0";
             }
         } else {
             throw new BaseEnvironmentMeasuringUnitCategoryIDMissingException();
         }
     } else {
         throw new BaseUserAccessDeniedException();
     }
 }