Eccube\Controller\Admin\Product\ProductClassController::getProductClassesExcludeNonClass PHP Method

    private function getProductClassesExcludeNonClass(Product $Product)
    {
        $ProductClasses = $Product->getProductClasses();
        return $ProductClasses->filter(function ($ProductClass) {
            $ClassCategory1 = $ProductClass->getClassCategory1();
            $ClassCategory2 = $ProductClass->getClassCategory2();
            return $ClassCategory1 || $ClassCategory2;
        });
    }