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