/**
* 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
$objects = AppBlogsBlogsPeer::doSelect($criteria, $con);
foreach ($objects as $obj) {
// delete related AppBlogsForms objects
$criteria = new Criteria(AppBlogsFormsPeer::DATABASE_NAME);
$criteria->add(AppBlogsFormsPeer::BLOG_ID, $obj->getId());
$affectedRows += AppBlogsFormsPeer::doDelete($criteria, $con);
// delete related AppBlogsMenu objects
$criteria = new Criteria(AppBlogsMenuPeer::DATABASE_NAME);
$criteria->add(AppBlogsMenuPeer::BLOG_ID, $obj->getId());
$affectedRows += AppBlogsMenuPeer::doDelete($criteria, $con);
// delete related AppBlogsPages objects
$criteria = new Criteria(AppBlogsPagesPeer::DATABASE_NAME);
$criteria->add(AppBlogsPagesPeer::BLOG_ID, $obj->getId());
$affectedRows += AppBlogsPagesPeer::doDelete($criteria, $con);
}
return $affectedRows;
}
/**
* 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 $con = null)
{
if ($this->isDeleted()) {
throw new PropelException("This object has already been deleted.");
}
if ($con === null) {
$con = Propel::getConnection(AppBlogsFormsPeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
}
$con->beginTransaction();
try {
$ret = $this->preDelete($con);
// symfony_behaviors behavior
foreach (sfMixer::getCallables('BaseAppBlogsForms:delete:pre') as $callable) {
if (call_user_func($callable, $this, $con)) {
$con->commit();
return;
}
}
if ($ret) {
AppBlogsFormsPeer::doDelete($this, $con);
$this->postDelete($con);
// symfony_behaviors behavior
foreach (sfMixer::getCallables('BaseAppBlogsForms:delete:post') as $callable) {
call_user_func($callable, $this, $con);
}
$this->setDeleted(true);
$con->commit();
} else {
$con->commit();
}
} catch (PropelException $e) {
$con->rollBack();
throw $e;
}
}