/** * This is a method for emulating ON DELETE CASCADE for DBs that don't support this * feature (like MySQL or SQLite). * * This method is not very speedy because it must perform a query first to get * the implicated records and then perform the deletes by calling those Peer classes. * * This method should be used within a transaction if possible. * * @param Criteria $criteria * @param PropelPDO $con * @return int The number of affected rows (if supported by underlying database driver). */ protected static function doOnDeleteCascade(Criteria $criteria, PropelPDO $con) { // initialize var to track total num of affected rows $affectedRows = 0; // first find the objects that are implicated by the $criteria $objects = KotaPeer::doSelect($criteria, $con); foreach ($objects as $obj) { // delete related Customers objects $criteria = new Criteria(CustomersPeer::DATABASE_NAME); $criteria->add(CustomersPeer::ID_KOTA, $obj->getId()); $affectedRows += CustomersPeer::doDelete($criteria, $con); // delete related Produsen objects $criteria = new Criteria(ProdusenPeer::DATABASE_NAME); $criteria->add(ProdusenPeer::ID_KOTA, $obj->getId()); $affectedRows += ProdusenPeer::doDelete($criteria, $con); // delete related Supplier objects $criteria = new Criteria(SupplierPeer::DATABASE_NAME); $criteria->add(SupplierPeer::ID_KOTA, $obj->getId()); $affectedRows += SupplierPeer::doDelete($criteria, $con); } return $affectedRows; }