/**
* Exclude object from result
*
* @param ChildPreference $preference Object to remove from the list of results
*
* @return $this|ChildPreferenceQuery The current query, for fluid interface
*/
public function prune($preference = null)
{
if ($preference) {
$this->addUsingAlias(PreferenceTableMap::COL_KEY, $preference->getKey(), Criteria::NOT_EQUAL);
}
return $this;
}
