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