/**
* 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
$objects = ModulePeer::doSelect($criteria, $con);
foreach ($objects as $obj) {
// delete related ModuleHook objects
$c = new Criteria(ModuleHookPeer::DATABASE_NAME);
$c->add(ModuleHookPeer::MODULE, $obj->getId());
$affectedRows += ModuleHookPeer::doDelete($c, $con);
}
return $affectedRows;
}
/**
* Returns the number of related ModuleHook objects.
*
* @param Criteria $criteria
* @param boolean $distinct
* @param PropelPDO $con
* @return int Count of related ModuleHook objects.
* @throws PropelException
*/
public function countModuleHooks(Criteria $criteria = null, $distinct = false, PropelPDO $con = null)
{
if ($criteria === null) {
$criteria = new Criteria(ModulePeer::DATABASE_NAME);
} else {
$criteria = clone $criteria;
}
if ($distinct) {
$criteria->setDistinct();
}
$count = null;
if ($this->collModuleHooks === null) {
if ($this->isNew()) {
$count = 0;
} else {
$criteria->add(ModuleHookPeer::MODULE, $this->id);
$count = ModuleHookPeer::doCount($criteria, $con);
}
} else {
// criteria has no effect for a new object
if (!$this->isNew()) {
// the following code is to determine if a new query is
// called for. If the criteria is the same as the last
// one, just return count of the collection.
$criteria->add(ModuleHookPeer::MODULE, $this->id);
if (!isset($this->lastModuleHookCriteria) || !$this->lastModuleHookCriteria->equals($criteria)) {
$count = ModuleHookPeer::doCount($criteria, $con);
} else {
$count = count($this->collModuleHooks);
}
} else {
$count = count($this->collModuleHooks);
}
}
$this->lastModuleHookCriteria = $criteria;
return $count;
}