public static function doDelete($values, ConnectionInterface $con = null)
     {
        if (null === $con) {
            $con = Propel::getServiceContainer()->getWriteConnection(AttributeTypeI18nTableMap::DATABASE_NAME);
        }

        if ($values instanceof Criteria) {
            // rename for clarity
            $criteria = $values;
        } elseif ($values instanceof \AttributeType\Model\AttributeTypeI18n) { // it's a model object
            // create criteria based on pk values
            $criteria = $values->buildPkeyCriteria();
        } else { // it's a primary key, or an array of pks
            $criteria = new Criteria(AttributeTypeI18nTableMap::DATABASE_NAME);
            // primary key is composite; we therefore, expect
            // the primary key passed to be an array of pkey values
            if (count($values) == count($values, COUNT_RECURSIVE)) {
                // array is not multi-dimensional
                $values = array($values);
            }
            foreach ($values as $value) {
                $criterion = $criteria->getNewCriterion(AttributeTypeI18nTableMap::ID, $value[0]);
                $criterion->addAnd($criteria->getNewCriterion(AttributeTypeI18nTableMap::LOCALE, $value[1]));
                $criteria->addOr($criterion);
            }
        }

        $query = AttributeTypeI18nQuery::create()->mergeWith($criteria);

        if ($values instanceof Criteria) { AttributeTypeI18nTableMap::clearInstancePool();
        } elseif (!is_object($values)) { // it's a primary key, or an array of pks
            foreach ((array) $values as $singleval) { AttributeTypeI18nTableMap::removeInstanceFromPool($singleval);
            }
        }

        return $query->delete($con);
    }