/**
* Filter the query by a related ItemType object
*
* @param ItemType|PropelObjectCollection $itemType The related object(s) to use as filter
* @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
*
* @return ItemSubTypeQuery The current query, for fluid interface
* @throws PropelException - if the provided filter is invalid.
*/
public function filterByMainType($itemType, $comparison = null)
{
if ($itemType instanceof ItemType) {
return $this->addUsingAlias(ItemSubTypePeer::MAIN_TYPE_ID, $itemType->getId(), $comparison);
} elseif ($itemType instanceof PropelObjectCollection) {
if (null === $comparison) {
$comparison = Criteria::IN;
}
return $this->addUsingAlias(ItemSubTypePeer::MAIN_TYPE_ID, $itemType->toKeyValue('PrimaryKey', 'Id'), $comparison);
} else {
throw new PropelException('filterByMainType() only accepts arguments of type ItemType or PropelCollection');
}
}
