When you delete user let the user posts get deleted too in node js

Question

Please am finding it difficult to delete user and also get the user posts removed automatically. I can only delete user or the user posts separately but I want it in a way that when I delete the user from the database the user posts also get deleted

Answer 1

You can look into mongoose pre middleware something like this should work:

UserSchema.pre('remove', function (next) {
  let id = this._id
  Post.deleteMany({ user: id }, function (err, result) {
    if (err) {
      next(err)
    } else {
      next()
    }
  })
})

The call the middleware like this :

User.findById(id, function (err, doc) {
      if (err) {
        console.log(err)
        return res.status(500).send('Something went wrong')
      } else {
        if (!doc)
          return res.status(404).send('User with the given id not found')
        doc.remove(function (err, postData) {
          if (err) {
            throw err
          } else {
            return res.send('User successfully deleted')
          }
        })
      }
    })