Sequelize 关联查询数据合并字段

例如现在有一张文章表article，category_id 代表的是文章的分类，另一张tags表存储的是文章的分类名称，两者的关系是article中的category_id与tags中的id关联，如何根据category_id获取到tags中的分类名称

Tags表：

Tag.init({
    id: {
        type: Sequelize.INTEGER,
        primaryKey: true,//设置主键
        autoIncrement: true,//自增长 
    },
    tag_name: {
        type: Sequelize.STRING,
        unique: true,
        validate: {
            notEmpty: {
                msg: "标签名不能为空"
            }
        }
    },

}, {
    sequelize,
    tableName: 'tags'

})

article表：

ArticleModel.init({
    id: {
        type: Sequelize.INTEGER,
        primaryKey: true,//设置主键
        autoIncrement: true,//自增长 
    },
    title: {
        type: Sequelize.STRING,
        require: true

    },
    top: {
        type: Sequelize.BOOLEAN,

    },
    category_id: {
        type: Sequelize.INTEGER,
        require: true

    },
    keyword: Sequelize.STRING,
    thumb_url: Sequelize.STRING,
    desc: {
        type: Sequelize.STRING,
        require: true

    },
    content: Sequelize.TEXT,
    article_author: Sequelize.STRING,
    count: {
        type: Sequelize.INTEGER,
        defaultValue: 0
    }
}, {
    sequelize,
    tableName: 'article'

})

关联查询：

ArticleModel.belongsTo(关联的模型, { foreignKey: '使用什么字段关联', targetKey: '与关联的模型那个字段关联', as: '别名' });
ArticleModel.belongsTo(Tag, { foreignKey: 'category_id', targetKey: 'id', as: 'tag_category' });

大白话翻译就是 Article需要与tag模型关联，根据articleModel的categoty_id和Tag中的id关联

关联查询：

  static async findAllArticle(page, size) {
        try {
            let tagInfo = await ArticleModel.findAndCountAll({

                limit: Number(size),
                offset: Number(size * (page - 1)),
                order: [

                    ['createdAt', 'DESC']
                ],
                include: [{
                    model: Tag,
                    as: 'tag_category',//这里的 as需要与之前定义的as名字相同

                }]
            })
            return {
                code: 0,
                message: tagInfo
            }
        } catch (e) {
            return {
                code: -1,
                message: e
            }
        }
    }