/** * 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 $objects = SchoolPeer::doSelect($criteria, $con); foreach ($objects as $obj) { // delete related Campus objects $criteria = new Criteria(CampusPeer::DATABASE_NAME); $criteria->add(CampusPeer::SCHOOL_ID, $obj->getId()); $affectedRows += CampusPeer::doDelete($criteria, $con); } return $affectedRows; }
public function delete($con = null) { foreach (sfMixer::getCallables('BaseCampus:delete:pre') as $callable) { $ret = call_user_func($callable, $this, $con); if ($ret) { return; } } if ($this->isDeleted()) { throw new PropelException("This object has already been deleted."); } if ($con === null) { $con = Propel::getConnection(CampusPeer::DATABASE_NAME); } try { $con->begin(); CampusPeer::doDelete($this, $con); $this->setDeleted(true); $con->commit(); } catch (PropelException $e) { $con->rollback(); throw $e; } foreach (sfMixer::getCallables('BaseCampus:delete:post') as $callable) { call_user_func($callable, $this, $con); } }