/**
* This function checks the local equal nest collection against the database
* and creates new relations or deletes ones that have been removed
*
* @param PropelPDO $con
*/
public function processEqualNestQueries(PropelPDO $con = null)
{
if (false === $this->alreadyInEqualNestProcessing && null !== $this->collEqualNestFriends) {
if (null === $con) {
$con = Propel::getConnection(PersonPeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
}
$this->alreadyInEqualNestProcessing = true;
$this->clearListFriendsPKs();
$this->initListFriendsPKs($con);
$this->collEqualNestFriends->save();
$con->beginTransaction();
try {
foreach ($this->getFriends()->getPrimaryKeys($usePrefix = false) as $columnKey => $pk) {
if (!in_array($pk, $this->listEqualNestFriendsPKs)) {
// save new equal nest relation
FriendPeer::buildEqualNestFriendRelation($this, $pk, $con);
// add this object to the sibling's collection
$this->getFriends()->get($columnKey)->addFriend($this);
} else {
// remove the pk from the list of db keys
unset($this->listEqualNestFriendsPKs[array_search($pk, $this->listEqualNestFriendsPKs)]);
}
}
// if we have keys still left, this means they are relations that have to be removed
foreach ($this->listEqualNestFriendsPKs as $oldPk) {
FriendPeer::removeEqualNestFriendRelation($this, $oldPk, $con);
}
$con->commit();
$this->alreadyInEqualNestProcessing = false;
} catch (PropelException $e) {
$con->rollBack();
throw $e;
}
}
}
