gistfile1.erb

<%= form_for @photo, :html => {:multipart => true}  do |f| %>
  <% if @photo.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@photo.errors.count, "error") %> prohibited this photo from being saved:</h2>

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

  <fieldset>
		<legend>Upload a Photo</legend>
		<div class="field">
			<%= f.file_field :image %>
		</div>				
	</fieldset>	

	<%= f.submit "Upload Photo", :class => "btn btn-small" %>
<% end %>