/**
* Filter the query by a related \ExpertQuestionState object
*
* @param \ExpertQuestionState|ObjectCollection $expertQuestionState the related object to use as filter
* @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
*
* @return ChildExpertsQuery The current query, for fluid interface
*/
public function filterByExpertQuestionState($expertQuestionState, $comparison = null)
{
if ($expertQuestionState instanceof \ExpertQuestionState) {
return $this->addUsingAlias(ExpertsTableMap::COL_USERNAME, $expertQuestionState->getUsername(), $comparison);
} elseif ($expertQuestionState instanceof ObjectCollection) {
return $this->useExpertQuestionStateQuery()->filterByPrimaryKeys($expertQuestionState->getPrimaryKeys())->endUse();
} else {
throw new PropelException('filterByExpertQuestionState() only accepts arguments of type \\ExpertQuestionState or Collection');
}
}
