How to sort out data from a database in Rails where the nesting level is unknown ???

Question

Ruby on Rails

Take, for example, the assistant manager. That is, each chief has his assistants, and in turn these assistants have their assistants, and so on.
For example, they have such a relationship Boss.id = Аssistant.boss_id (has_many, belongs_to - many to one).
So there is a boss with id = 5. And I need to take all the id-shniks of my assistants, including their assistants, and so on until the end.
And how to implement it if I don't know the levels???

Answer 1

the best solution would be to include the gem https://github.com/collectiveidea/awesome_nested_set

Answer 2

If speed is not important, then simple recursion.

Answer 3

habrahabr.ru/post/130371
will help a lot if you use pg))