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