在查询中查询查询

Question

我有2个型号Shop和Beacon。我必须返回分配给每个商店的总和信标。我知道如何在SQL中执行它：

SELECT Shops.*, (SELECT COUNT(id) FROM Beacons WHERE shopId = Shops.id) FROM Shops 

但我有Sequelize的问题，我尝试下面的事情：

models.Shop.findAll({
  attributes: ['id', sqz.fn('count', sqz.col('shopId'))],
  include: [
    {
      model: models.Beacon
    }
  ]
});

Answer 1

此解决方案有效，但返回查询：

SELECT Shop.*, count(shopId) FROM Shops LEFT OUTER JOIN Beacons ON Shop.id = Beacons.shopId