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