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