How to order by many to many relationship in Sequelize?

Issue

I have a many to many relationship between User and Category through UserCategory as below.

let user = await User.findAll({
  where: {
    id: req.query.user
  },
  attributes: ["id", "name"],
  include: [
    {
      model: models.Category,
      as: "interests",
      attributes: ["id", "name", "nameTH", "icon"],
      through: {
        model: models.UserCategory,
        as: "user_categories",
        attributes: ["id", "userId", "categoryId", "updatedAt"]
      }
    }
  ],
  // Here, I want to order by updatedAt in user_categories
  order: [["user_categories", "updatedAt", "DESC"]] 
});

How can I order the result by “updatedAt” inside UserCategory model?

Solution

Please refer the following code to sort the result by updatedAt inside UserCategory model-

let user = await User.findAll({
  where: {
    id: req.query.user
  },
  attributes: ["id", "name"],
  include: [
    {
      model: models.Category,
      as: "interests",
      attributes: ["id", "name", "nameTH", "icon"],
      through: {
        model: models.UserCategory,
        as: "user_categories",
        attributes: ["id", "userId", "categoryId", "updatedAt"]
      }
    }
  ],
  // Here, I want to order by updatedAt in user_categories
  order: [[Sequelize.literal('`interests->user_categories`.`updatedAt`'), 'DESC']] 
});

I hope it helps!

Answered By – Soham Lawar

Answer Checked By – Cary Denson (AngularFixing Admin)

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