/**
* 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');
}
}
