Question

I have four models: a, b, c, d

here is what I want to do:

a has_many b, :through => c
a has_many d, :through => b

so that in the console I can then do:

a.b
a.b.first.d
a.d

currently the first two commands work but on the third I get an SQL error. it appears to be trying to go straight through b to get d and not picking up the fact that a -> b goes through c.

How to solve?

Answer 1

I dont think you can call a.d directly but you can do a.b.map(&:d).flatten to get all d of a