/**
* Removes this object from datastore and sets delete attribute.
*
* @param PropelPDO $con
* @return void
* @throws PropelException
* @see BaseObject::setDeleted()
* @see BaseObject::isDeleted()
*/
public function delete(PropelPDO $con = null)
{
foreach (sfMixer::getCallables('BasesfBreadNav: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(sfBreadNavPeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
}
$con->beginTransaction();
try {
sfBreadNavPeer::doDelete($this, $con);
$this->setDeleted(true);
$con->commit();
} catch (PropelException $e) {
$con->rollBack();
throw $e;
}
foreach (sfMixer::getCallables('BasesfBreadNav:delete:post') as $callable) {
call_user_func($callable, $this, $con);
}
}
/**
* Deletes $node and all of its descendants
*
* @param sfBreadNav $node Propel object for source node
* @param PropelPDO $con Connection to use.
*/
public static function deleteDescendants(NodeObject $node, PropelPDO $con = null)
{
$left = $node->getLeftValue();
$right = $node->getRightValue();
$c = new Criteria(sfBreadNavPeer::DATABASE_NAME);
$c1 = $c->getNewCriterion(self::LEFT_COL, $left, Criteria::GREATER_THAN);
$c2 = $c->getNewCriterion(self::RIGHT_COL, $right, Criteria::LESS_THAN);
$c1->addAnd($c2);
$c->add($c1);
if (self::SCOPE_COL) {
$c->add(self::SCOPE_COL, $node->getScopeIdValue(), Criteria::EQUAL);
}
$c->addAscendingOrderByColumn(self::RIGHT_COL);
$result = sfBreadNavPeer::doDelete($c, $con);
self::shiftRLValues($right + 1, $left - $right - 1, $con, $node->getScopeIdValue());
return $result;
}
/**
* 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
$objects = sfBreadNavApplicationPeer::doSelect($criteria, $con);
foreach ($objects as $obj) {
// delete related sfBreadNav objects
$c = new Criteria(sfBreadNavPeer::DATABASE_NAME);
$c->add(sfBreadNavPeer::SCOPE, $obj->getId());
$affectedRows += sfBreadNavPeer::doDelete($c, $con);
}
return $affectedRows;
}
