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