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