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