Rails 4 simple_form_for和嵌套资源未定义方法

Question

I'm getting undefined method error:

undefined method `challenges_path'

I thought I had my form correct, _form.haml

= simple_form_for [@skit, @challenge], html: { class: "form-horizontal" } do |f|

The link to the form above:

= link_to 'Submit', new_skit_challenge_path(params[:skit_id]), class: "btn btn-default" 

This is my routes

resources :skits do
  resources :challenges
end

This is my challenge_controller.rb

def new
  @challenge = Challenge.new
end

What am I doing wrong? What else information do you need that can help debug this issue?

Answer 1

Perhaps you could try doing this:

resources :skits, shallow: true do
  resources :challenges
end

Answer 2

undefined method `challenges_path'

The problem is @skit is nil because you haven't initialized @skit in the new action.

def new
  @challenge = Challenge.new
  @skit = Skit.find(params[:skit_id]) #you need this line
end