Как в Woocommerce убрать кнопку «В корзину» у товаров без размеров и веса?

add_filter('remove_add_to_cart', 'my_woocommerce_is_purchasable', 10, 2);
function remove_add_to_cart($is_purchasable, $product) {
        if( $product->get_weight() == 0 )
            $is_purchasable = false;
            return $purchasable;   
}


function remove_add_to_cart_on_0 ( $purchasable, $product ){
        if( $product->get_weight() == 0 )
            $purchasable = false;
        return $purchasable;
    }
add_filter( 'woocommerce_is_purchasable', 'remove_add_to_cart_on_0', 10, 2 );