Backbone and Rails associations: Avoiding JSON HashWithIndifferentAccess errors

Question

I\'m trying to get my backbone associations working inside a rails app , and I\'m having difficulty when trying to update existing models. Specifically, Rails throws the followi

Answer 1

For those who are Googling...

While the current accepted answer certainly works, the following was how I worked out my problem (very similar, but slightly different):

I was using a nested form, with models nested 4 layers deep. In my controller which was rendering the form, I needed to build out the form.

def new
  @survey = Survey.new
  3.times do
    question = @survey.questions.build
    4.times { question.answers.build }
  end
end

This allowed the params to include params[:survey][:questions_attributes]. Rails renamed the parameters for me because I informed it ahead of time.

Hope this helps!