Rails nested routing issue

问题:

I have Q+A model inside an events model and having issue with understanding how the nested routes work. I'm getting a No route matches {:action=>"create", :controller=>"event_questions" and missing required keys: [:event_id]`

My question form sits inside my show.hrml.erb for my event model right now. Some of the relationship stuff is from neo4j gem so it isn't standard but the issue shouldn't be related to that. From what I know, I am posting to /events/events_id/event_questions

events_controller.rb

def show
    @event = Event.find(params[:id])
    @event_question = EventQuestion.new
end

event.rb

  has_many :out, :event_questions, type: 'questions_of'

event_question.rb

  has_one :in, :events, origin: :event_questions

events/show.html.erb

<%= form_for [:event, @event_question] do |f| %>

#form stuff

<% end %>

event_questions_controller.rb

def create
    @event_question = EventQuestion.new(event_question_params)
    if @event_question.save
        @event = Event.find(params[:event_id])
        @event_question.update(admin: current_user.facebook_id)
        @event_question.events << @event
        redirect_to @event
    else
        redirect_to :back
    end
end

routes.rb

resources :events do
    resources :event_questions, only: [:create, :destroy]
  end

回答1:

I think it's in your routes. Change it to look like this:

resources :events do
  resources :questions, controller: 'event_questions`, only: [:create, :destroy]
end

That'll give you http://youraddress/event/:event_id/questions and put it in the expected controller. Make sure it's event_questions.rb and not events_questions.rb. From terminal, also run rake routes and it'll show you the actions, paths, and controllers responsible for them.

回答2:

Got it to work with

form_for(@event_question, :url => event_event_questions_path(@event)) do |f|

I'm not sure how to pass the @event via the other way (in the question), but assuming you can, both methods should work.