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