Ordering results of eager-loaded models in Node Sequelize

问题

I have a complex set of associated models. The models are associated using join tables, each with an attribute called 'order'. I need to be able to query the parent model 'Page' and include the associated models, and sort those associations by the field 'order'.

The following is having no effect on the results' sort order:

db.Page.findAll({
  include: [{
    model: db.Gallery,
    order: ['order', 'DESC'],
    include: [{
      model: db.Artwork,
      order: ['order', 'DESC']
    }]
  }],
})

回答1:

I believe you can do:

db.Page.findAll({
  include: [{
    model: db.Gallery
    include: [{
      model: db.Artwork
    }]
  }],
  order: [
    [ db.Gallery, 'order', 'DESC' ],
    [ db.Gallery, db.ArtWork, 'order', 'DESC' ]
  ]
})

回答2:

If you also use 'as' and let's say you want to order by 'createdDate' , the query looks like this:

DbCategoryModel.findAll({
    include: [
        {
            model: DBSubcategory,
            as: 'subcategory',
            include: [
                {
                    model: DBProduct,
                    as: 'product',
                }
            ],
        }
    ],
    order: [
        [
            {model: DBSubcategory, as: 'subcategory'},
            {model: DBProduct, as: 'product'},
            'createdDate',
            'DESC'
        ]
    ]
})

回答3:

order: [
[ db.Sequelize.col('order'), 'DESC'],    /*If you want to order by page module as well you can add this line*/
[ db.Gallery, db.ArtWork, 'order', 'DESC' ]
]

来源：https://stackoverflow.com/questions/29995116/ordering-results-of-eager-loaded-models-in-node-sequelize