postcard.html.erb

Enter a message (optional) and address. If you don't have an address, enter an email and we'll email that person for their address.
<br />
<%= form_for(@postcard, :remote => true) do |f| %>
  <% if @postcard.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@postcard.errors.count, "error") %> prohibited this postcard from being saved:</h2>

      <ul>
      <% @postcard.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= f.label :message %><br />
    <%= f.text_area(:message, :size => "40x8") %>
  </div>
  <div class="field">
    <%= f.label :email %><br />
    <%= f.email_field :email %>
  </div>
  <div class="field">
    <%= f.label :size %><br />
    <%= f.select(:size, options_for_select([['Regular (4x6)', 'regular'], ['Jumbo (5.5x8.5)', 'jumbo']])) %>
  </div>
  <div class="field">
    <%= f.hidden_field(:user_id, :value => current_user.id) %>
    <%= f.hidden_field(:photo_id, :value => params[:photo]) %>
  </div>

  <%= f.fields_for :addresses do |builder| %>
  <p>
    <%= render 'addresses/form', :builder => builder %>
  </p>
  <% end %>

  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>

routes.rb

  match "/share/postcard" => "home#postcard", :as => :postcards

  post "/share/postcard" => "home#postcard_create", :as => :postcards_create