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