gistfile1.txt

###### routes.rb

resources :surveys do
     resources :questions do
        resources :responses
     end
  end

###### questions/new.html.erb

<%= form_for([@survey, @survey.questions.build]) do |f| %>
  <% if @question.errors.any? %>
  <div id="errorExplanation">
    <h2><%= pluralize(@question.errors.count, "error") %> prohibited this question from being saved: </h2>
    <ul>
    <% @question.errors.full_messages.each do |msg| %>
      <li><%= msg %></li>
    <% end %>
    </ul>
  </div>
  <% end %>

  <div class="field">
    <%= f.label :question %><br />
    <%= f.text_field :question %>
  </div>
  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>

###### questions_controller.rb

  def create
    @question = Question.new(params[:question])
    @question.survey_id = Survey.find(params[:survey_id])
    
    respond_to do |format|
      if @question.save
        format.html  { redirect_to(@question,
                    :notice => 'question was successfully created.') }
        format.json  { render :json => @question,
                    :status => :created, :location => @question }
      else
        format.html  { render :action => "new" }
        format.json  { render :json => @question.errors,
                    :status => :unprocessable_entity }
      end
    end
  end