/**
  * Filter the query by a related \App\Propel\Resource object
  *
  * @param \App\Propel\Resource|ObjectCollection $resource the related object to use as filter
  * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
  *
  * @return ChildResourceTypeQuery The current query, for fluid interface
  */
 public function filterByResource($resource, $comparison = null)
 {
     if ($resource instanceof \App\Propel\Resource) {
         return $this->addUsingAlias(ResourceTypeTableMap::COL_RESOURCE_TYPE_ID, $resource->getResourceTypeId(), $comparison);
     } elseif ($resource instanceof ObjectCollection) {
         return $this->useResourceQuery()->filterByPrimaryKeys($resource->getPrimaryKeys())->endUse();
     } else {
         throw new PropelException('filterByResource() only accepts arguments of type \\App\\Propel\\Resource or Collection');
     }
 }