public static function doDelete($values, ConnectionInterface $con = null)
     {
         if (null === $con) {
             $con = Propel::getServiceContainer()->getWriteConnection(SmartyFilterI18nTableMap::DATABASE_NAME);
         }

         if ($values instanceof Criteria) {
             // rename for clarity
            $criteria = $values;
         } elseif ($values instanceof \SmartyFilter\Model\SmartyFilterI18n) { // 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
            $criteria = new Criteria(SmartyFilterI18nTableMap::DATABASE_NAME);
            // primary key is composite; we therefore, expect
            // the primary key passed to be an array of pkey values
            if (count($values) == count($values, COUNT_RECURSIVE)) {
                // array is not multi-dimensional
                $values = array($values);
            }
             foreach ($values as $value) {
                 $criterion = $criteria->getNewCriterion(SmartyFilterI18nTableMap::ID, $value[0]);
                 $criterion->addAnd($criteria->getNewCriterion(SmartyFilterI18nTableMap::LOCALE, $value[1]));
                 $criteria->addOr($criterion);
             }
         }

         $query = SmartyFilterI18nQuery::create()->mergeWith($criteria);

         if ($values instanceof Criteria) {
             SmartyFilterI18nTableMap::clearInstancePool();
         } elseif (!is_object($values)) { // it's a primary key, or an array of pks
            foreach ((array) $values as $singleval) {
                SmartyFilterI18nTableMap::removeInstanceFromPool($singleval);
            }
         }

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