/**
* Filter the query by a related \Questions object
*
* @param \Questions|ObjectCollection $questions The related object(s) to use as filter
* @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
*
* @return ChildResponsesQuery The current query, for fluid interface
*/
public function filterByQuestions($questions, $comparison = null)
{
if ($questions instanceof \Questions) {
return $this->addUsingAlias(ResponsesTableMap::COL_QUESTION_ID, $questions->getId(), $comparison);
} elseif ($questions instanceof ObjectCollection) {
if (null === $comparison) {
$comparison = Criteria::IN;
}
return $this->addUsingAlias(ResponsesTableMap::COL_QUESTION_ID, $questions->toKeyValue('PrimaryKey', 'Id'), $comparison);
} else {
throw new PropelException('filterByQuestions() only accepts arguments of type \\Questions or Collection');
}
}
