ActiveRecord Find All not sorting by ID?

Question

I\'ve got a strange issue on a Heroku deployment that I can\'t seem to duplicate locally. Basically when I find all on a specific model instead of sorting by ID it seems to

Answer 1

You should explicitly order your queries. Usually, there's no guaranteed or fixed order provided by the database.

Also, you should not use default_scope (see: 1, 2, 3). Use a normal scope or explicit ordering instead:

class Model < ApplicationRecord
  scope :oldest_first { order(created_at: :asc) }
end

Model.oldest_first.limit(10)
Model.order(created_at: :desc).limit(10)