添加产品后更新结账

// 示例代码：检查产品列表是否正确渲染
function renderProductList(products) {
    const productListElement = document.getElementById('product-list');
    productListElement.innerHTML = ''; // 清空现有列表
    products.forEach(product => {
        const productItem = document.createElement('div');
        productItem.textContent = `${product.name} - $${product.price}`;
        productListElement.appendChild(productItem);
    });
}

// 示例代码：使用事务处理库存更新
async function updateStock(productId, quantity) {
    const session = getDatabaseSession();
    try {
        await session.startTransaction();
        const product = await session.get('Product', productId);
        if (product.stock < quantity) {
            throw new Error('Insufficient stock');
        }
        product.stock -= quantity;
        await session.save(product);
        await session.commitTransaction();
    } catch (error) {
        await session.abortTransaction();
        throw error;
    } finally {
        session.endSession();
    }
}