/** * Exclude object from result * * @param ChildExtension $extension Object to remove from the list of results * * @return $this|ChildExtensionQuery The current query, for fluid interface */ public function prune($extension = null) { if ($extension) { $this->addUsingAlias(ExtensionTableMap::COL_ID, $extension->getId(), Criteria::NOT_EQUAL); } return $this; }