An example of using layouts with partials in Rails

_rating_form.html.erb

<form action="/path/to/some/action" method="post">
  <ul id="rating-list">
    <li class="average" style="width: 50px;"><span class="alt">2.5</span></li>
    <%- (1..5).each do |score| -%>
      <li class="rate-<%= score %>"><button type="submit" name="score" value="<%= score %>"><%= score %></button></li>
    <%- end -%>
  </ul>
</form>

_rating_widget.html.erb

<div id="rating">
  <h2>Average Rating <span>(100)</span></h2>
  <%= yield %>
</div>

show.html.erb

<div class="article hentry">
  <div class="header">
    <h1 class="entry-title"><%= h( @article.title ) %></h1>
    <ul class="entry-meta">
      <li class="vcard">By <%= h( @article.author ) %></li>
      <li class="pubdate">Added: <abbr class="published updated" title="...">...</abbr></li>
    </ul>
  </div>
  <div class="entry-content">
    <%= @article.body %>
  </div>
</div>

<%#= render :partial => 'rating_form' %>
<%= render :partial => 'rating_form', :layout => 'rating_widget' %>