form_for non-AR model - fields_for Array attribute doesn't iterate

Question

I\'m having trouble getting fields_for to work on an Array attribute of a non-ActiveRecord model.

Distilled down, I have to following:

models/pa

Answer 1

I ditched the fields_for and added multiple: true

= form_for @parent, :url => new_parent_path do |f|
  - @parent.bars.each_with_index do |bar, i|
    = f.text_field :bars, value: bar, multiple: true, id: "bar#{i}"