/**
* Exclude object from result
*
* @param ChildPromotion $promotion Object to remove from the list of results
*
* @return $this|ChildPromotionQuery The current query, for fluid interface
*/
public function prune($promotion = null)
{
if ($promotion) {
$this->addUsingAlias(PromotionTableMap::COL_PROMOTION_ID, $promotion->getPromotionId(), Criteria::NOT_EQUAL);
}
return $this;
}
