/**
* Filter the query by a related Country object
*
* @param Country|PropelObjectCollection $country The related object(s) to use as filter
* @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
*
* @return PrincipalQuery The current query, for fluid interface
* @throws PropelException - if the provided filter is invalid.
*/
public function filterByCountry($country, $comparison = null)
{
if ($country instanceof Country) {
return $this->addUsingAlias(PrincipalPeer::COUNTRY_ID, $country->getId(), $comparison);
} elseif ($country instanceof PropelObjectCollection) {
if (null === $comparison) {
$comparison = Criteria::IN;
}
return $this->addUsingAlias(PrincipalPeer::COUNTRY_ID, $country->toKeyValue('PrimaryKey', 'Id'), $comparison);
} else {
throw new PropelException('filterByCountry() only accepts arguments of type Country or PropelCollection');
}
}
