function flush()
{
$this->db_table->delete();
}
function remove($object)
{
$table = new lmbTableGateway($this->relation_info['table'], $this->conn);
$criteria = new lmbSQLCriteria();
$criteria->addAnd(lmbSQLCriteria::equal($this->relation_info['field'], $this->owner->getId()));
$criteria->addAnd(lmbSQLCriteria::equal($this->relation_info['foreign_field'], $object->getId()));
$table->delete($criteria);
$this->reset();
}
