node.js - Sequelize - SQL Server - 关联表的排序依据

Question

我有 3 个表，例如 user、userProfile 和 userProfileImages。 User 与 userPrfoile 有很多映射，userProfile 与 userProfileImages 有很多映射。

我需要在 userProfileImages 中编写order by query，我试过如下，但没有成功。

User.findById(uID, { 
include: [
   model: sequelize.models.userProfile
   as: userProfile,
   include: [
    {
      model: sequelize.models.userProfileImages,
      as: 'profileImages',

    }
   ],
    order: [[sequelize.models.userProfileImages.id, "desc"]]
  // order: [["id", "desc"]] --> Tried this way also no luck
] }

我得到了结果，但是 userProfilePicture 表的结果不是 desc。

请给出解决方案

Answer 1

来自 Sequelize 官方文档:

    // Will order by an associated model's created_at using an association object. (preferred method)
    [Subtask.associations.Task, 'createdAt', 'DESC'],

    // Will order by a nested associated model's created_at using association objects. (preferred method)
    [Subtask.associations.Task, Task.associations.Project, 'createdAt', 'DESC'],

通过引用上面的语法，如下更新您的订单选项

User.findById(uID, { 
    include: [{
        model: sequelize.models.userProfile
        as: userProfile,
        include: [{
           model: sequelize.models.userProfileImages,
           as: 'profileImages',
        }],
        order: [['profileImages','id', 'desc']]
    }]
});

官方文档:http://docs.sequelizejs.com/manual/tutorial/querying.html#ordering

有关更多解决方案，请参阅此线程:https://github.com/sequelize/sequelize/issues/4553