Mysql 如何在sequelize的子模型中添加条件,这些条件会影响FindCountAll中的父模型?

Mysql 如何在sequelize的子模型中添加条件,这些条件会影响FindCountAll中的父模型?,mysql,node.js,express,sequelize.js,sequelize-cli,Mysql,Node.js,Express,Sequelize.js,Sequelize Cli,在sequelize中,我想在FindCountAll调用子模型中添加一个条件。如果条件为false,则应影响父模型,findAndCountAll应返回数组长度0。目前,仅该子模型的数组长度为0,其余父模型将返回 我在分享的代码中添加了更多细节。 我的代码是这样的: 好的,我找到了解决方案,但添加了一个带有连接的原始查询,我在需要的地方添加了我所需的条件,并获取了主模型的id。然后,我使用sequelize在where子句中添加这些ID来获取数据。我的代码现在看起来像这样 const { li

在sequelize中,我想在FindCountAll调用子模型中添加一个条件。如果条件为false,则应影响父模型,findAndCountAll应返回数组长度0。目前,仅该子模型的数组长度为0,其余父模型将返回

我在分享的代码中添加了更多细节。 我的代码是这样的:


好的,我找到了解决方案,但添加了一个带有连接的原始查询,我在需要的地方添加了我所需的条件,并获取了主模型的id。然后,我使用sequelize在where子句中添加这些ID来获取数据。我的代码现在看起来像这样

const { limit, offset } = dbHelpers.GetPagination(
    req.query.limit,
    req.query.offset
);

let querySting = "(SELECT count(DISTINCT p.id) FROM ModelA p " +
    "JOIN ModelB cp ON cp.pId = p.id " +
    "JOIN ModelC cs ON cs.cpId = cp.id " +
    "JOIN ModelD ms ON ms.csId = cs.id " +
    "LEFT JOIN ModelE sa ON sa.msId = ms.id " +
    "LEFT JOIN ModelF pp ON pp.msId = ms.id " +
    "LEFT JOIN ModelG sta ON sta.ppId = pp.id " +
    "LEFT JOIN ModelH ol ON ol.cdId = cd.id " +
    "WHERE "   //you can add your conditions here
    + " ORDER BY p.id desc LIMIT  " + offset + ",  " + limit + ")"


const rawQuery = await models.sequelize.query(querySting,
    { type: QueryTypes.SELECT })
const Ids = rawQuery.map(result => result.id)

const results = await models.ModelA.findAndCountAll({
    where: {
        id: Ids
    },
    include: [
        {
            model: models.ModelB,
            as: "ModelB",
            include: [
                {
                    model: models.ModelC,
                    separate: true,
                },
                {
                    model: models.ModelD,
                    separate: true,
                    include: [
                        {
                            model: models.ModelE,
                            separate: true,
                                            {
                            model: models.ModelF,
                            separate: true,
                        },
                    ],
                },
            ],
        },
    ],
},
    {
        model: models.ModelG,
        include: [
            {
                model: models.ModelH,
                as: "ModelH",
            },
        ],
    },
                ],
            });
const { limit, offset } = dbHelpers.GetPagination(
    req.query.limit,
    req.query.offset
);

let querySting = "(SELECT count(DISTINCT p.id) FROM ModelA p " +
    "JOIN ModelB cp ON cp.pId = p.id " +
    "JOIN ModelC cs ON cs.cpId = cp.id " +
    "JOIN ModelD ms ON ms.csId = cs.id " +
    "LEFT JOIN ModelE sa ON sa.msId = ms.id " +
    "LEFT JOIN ModelF pp ON pp.msId = ms.id " +
    "LEFT JOIN ModelG sta ON sta.ppId = pp.id " +
    "LEFT JOIN ModelH ol ON ol.cdId = cd.id " +
    "WHERE "   //you can add your conditions here
    + " ORDER BY p.id desc LIMIT  " + offset + ",  " + limit + ")"


const rawQuery = await models.sequelize.query(querySting,
    { type: QueryTypes.SELECT })
const Ids = rawQuery.map(result => result.id)

const results = await models.ModelA.findAndCountAll({
    where: {
        id: Ids
    },
    include: [
        {
            model: models.ModelB,
            as: "ModelB",
            include: [
                {
                    model: models.ModelC,
                    separate: true,
                },
                {
                    model: models.ModelD,
                    separate: true,
                    include: [
                        {
                            model: models.ModelE,
                            separate: true,
                                            {
                            model: models.ModelF,
                            separate: true,
                        },
                    ],
                },
            ],
        },
    ],
},
    {
        model: models.ModelG,
        include: [
            {
                model: models.ModelH,
                as: "ModelH",
            },
        ],
    },
                ],
            });