/** * Filter the query by a related BuyListing object * * @param BuyListing|PropelObjectCollection $buyListing the related object to use as filter * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL * * @return ItemQuery The current query, for fluid interface * @throws PropelException - if the provided filter is invalid. */ public function filterByBuyListing($buyListing, $comparison = null) { if ($buyListing instanceof BuyListing) { return $this->addUsingAlias(ItemPeer::DATA_ID, $buyListing->getItemId(), $comparison); } elseif ($buyListing instanceof PropelObjectCollection) { return $this->useBuyListingQuery()->filterByPrimaryKeys($buyListing->getPrimaryKeys())->endUse(); } else { throw new PropelException('filterByBuyListing() only accepts arguments of type BuyListing or PropelCollection'); } }