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