/** * Filter the query by a related Artista object * * @param Artista|PropelCollection $artista The related object(s) to use as filter * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL * * @return ProductoQuery The current query, for fluid interface */ public function filterByArtista($artista, $comparison = null) { if ($artista instanceof Artista) { return $this->addUsingAlias(ProductoPeer::IDARTISTA, $artista->getIdartista(), $comparison); } elseif ($artista instanceof PropelCollection) { if (null === $comparison) { $comparison = Criteria::IN; } return $this->addUsingAlias(ProductoPeer::IDARTISTA, $artista->toKeyValue('PrimaryKey', 'Idartista'), $comparison); } else { throw new PropelException('filterByArtista() only accepts arguments of type Artista or PropelCollection'); } }