How to build a nested form for Poll Voting?

How to create a form that is for a poll that shows if you have voted or not. Given a poll like so:

What is the best camera manufacturer?

1. HP
2. Kodak
3. Cannon

I have the following models:

Poll (question)
PollOption (poll_id, title)
PollVote(user_id, poll_id, poll_option_id)

My question is how do I output a form with the question/options a开发者_StackOverflow中文版long with radio buttons to allow voting?

Here's what I have below. I'm stuck on how to build the radio buttons? Thanks

<div class="question">
    <%= @poll.title %>
</div>
<div class="choices">
    <% @poll.poll_options.each do |poll_option| %>
        <div class="row clearfix">
            <div class="pollRadioBtn">
                <input type="radio" name="option_id" value="" id="">
            </div>
            <div class="pollVotesBar">
                <%= poll_option.title %>
            </div>
        </div>
    <% end %>
</div>

Routes:

  resources :polls do
    resources :poll_options do
      resources :poll_votes
    end
  end

jQuery to post a vote:

$.ajax({
    type: 'POST',
    url: '/polls/<%=@poll.id%>/poll_options/' + $(this).val() + '/poll_votes',
    data: 'poll_vote[poll_id]=' + <%=@poll.id%> + '&poll_vote[poll_option_id]=' + $(this).val()
});

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i would advise you check out this project where they created a poll system it is help full because it helped me to acomplish my own risealumni