排序，检查行是否存在并返回布尔值

Question

请帮助

如何实现请求“ SELECT EXISTS（SELECT FROM FROM Followers WHERE follower_id = 100）;”通过Sequelize并将结果显示在单独的字段中？

类似的东西

await Followers.findAll({
  where: { user_id: userId },
  include: [
     {
      model: Followers,
      as: 'isSubscribed',
      ...
      },
    },
  ]

Answer 1

做类似

let followersCount = Followers.count({ where: {follower_id: 100} })

if(followersCount > 0){
  //EXISTS, Do Something
}
else{
   //Does not exist
 }