如何在 Sequelize 中更新关联表

Question

我有一个产品表和产品图片表。

    module.exports = (sequelize, DataTypes) => {
        const Product = sequelize.define("product", {
            id: { type: INTEGER, primaryKey: true, autoIncrement: true },
            name: { type: STRING },
            price: { type: STRING }
        }, {
            timestamps: false,
            freezeTableName: true,
        })
        Product.associate = function (models) {
            Product.hasMany(models.product_image, { as: 'images' });
        };
        return Product;
    
    }

module.exports = (sequelize, DataTypes) => {
    const ProductImages = sequelize.define("product_image", {
        id: { type: INTEGER, primaryKey: true, autoIncrement: true },
        productId: { type: INTEGER},
        title: { type: STRING },
        url: { type: STRING }
    }, {
        timestamps: false,
        freezeTableName: true,
    })
    return ProductImages;

}

我可以通过将模型包含在来自以下有效负载的 create 方法中，在单个语句中创建产品和产品图像整体

{
    "name": "Product 1",
    "price": "10.00",
    "images": [
        {
            "title": "image 1",
            "url": "url 1 here"
        },
        {
            "title": "image 2",
            "url": "url 2 here"
        }
    ]
}

db.product.create({
            name: body.name,
            price: body.price,
            images: body.images
        },
        {
            include: [
                {
                    model: db.product_images,
                    as: 'images'
                }
            ]
        }
        ).then(product => {\\ITS WORKED FINE. UPDATED BOTH TABLES WITH DETAILS

但我需要根据以下有效负载部分更新产品和图像详细信息。我可以更新产品详细信息。但是图像表没有更新

{
    "id": 1,
    "price": "55.00",
    "images": [
        {
            "id": 1,
            "title": "image 11111111",
        },
        {
            "id": 2,
            "url": "url 222222222 here"
        }
    ]
}

let product = {}
product.id = body.id;
if(body.name) product.name = body.name
if(body.price) product.price = body.price
let productImages = []
body.images.forEach(image=>{
    let imageItem = {}; 
    imageItem.id = image.id;
    if(image.title) imageItem.title = image.title
    if(image.url) imageItem.url = image.url
    productImages.push(imageItem);
});
if(productImages.length > 0) product.images = productImages
console.log(product);//GOT CORRECT RESULT HERE WITH ONLY UPDATED DETAILS
db.product.update(product,
    {where: {id: body.id}},
    {
        include:[
                {
                    model: db.product_images,
                    as: 'images'
                }
            ]
    }
    ).then(rowsUpdated=> {
    
        //UPDATED ONLY THE PRODUCT TABLE
    })

Answer 1

您可以使用事务来实现这一点。因此，您将完全控制更新事件。 https://sequelize.org/master/manual/transactions.html 参考非托管交易