Question

我正在关注官方的Sequelizer文档，但无法与多个“ hasMany”关联一起使用。

在使用hasMany()和belongsTo()关联（通过sequelize，node js和express）时，我只想显示邮递员中的总员工而不是整个项目资源模型

这如何正确完成？

Project.hasMany(projectResource, {foreignKey: 'projectId', sourceKey: 'id'}),  
projectResource.belongsTo(Project, {foreignKey: 'projectId', targetKey: 'id'})  

many(request)
{
    return Project.findAll({
        where: request,
        attributes: {
            include: [[Sequelize.fn("COUNT", Sequelize.col("projectId")), "totalEmployee"]]
        },
        include: [
          {
            model: projectResource
          }
        ],
        group: ['Project.id']
    })
}

在邮递员中我得到

"project": [
            {
                "id": 1,
                "projectName": "enuke",
                "projectManagerId": 2,
                "projectType": "2",
                "status": "3",
                "startDate": "2019-06-18",
                "endDate": "2019-06-29",
                "createdAt": null,
                "updatedAt": "2019-06-19T06:57:57.000Z",
                "deletedAt": null,
                "totalEmployee": 1,
                "projectresources": [
                    {
                        "id": 1,
                        "projectId": 1,
                        "employeeId": 2,
                        "createdAt": "2019-06-20T00:00:00.000Z",
                        "updatedAt": "2019-06-20T00:00:00.000Z",
                        "deletedAt": null
                    }
                ]
            }]

Answer 1

Project.hasMany(projectResource, {foreignKey: 'projectId', sourceKey: 'id'}),  
projectResource.belongsTo(Project, {foreignKey: 'projectId', targetKey: 'id'})  

many(request)
{
    return Project.findAll({
        where: request,
        attributes: {
            include: [[Sequelize.fn("COUNT", Sequelize.col("projectId")), "totalEmployee"]]
        },
        include: [
          {
            model: projectResource,
            attributes: [],
          }
        ],
        group: ['Project.id']
    })
}

你可以试试这个吗

如何从hasMany（）关联中“删除模型”

1 个答案: