WC_Abstract_Legacy_Order::has_meta PHP Method

    public function has_meta($order_item_id)
    {
        global $wpdb;
        wc_deprecated_function('has_meta', '2.7', 'WC_Order_item::get_meta_data');
        return $wpdb->get_results($wpdb->prepare("SELECT meta_key, meta_value, meta_id, order_item_id\n\t\t\tFROM {$wpdb->prefix}woocommerce_order_itemmeta WHERE order_item_id = %d\n\t\t\tORDER BY meta_id", absint($order_item_id)), ARRAY_A);
    }