Rails 3 form error partial

_error_messages.html.erb

<% if target.errors.any? %>
<div class="error_explanation">
  <h2><%= pluralize(target.errors.count, "error") %> prevented this record from being saved:</h2>
  <ul>
  <% target.errors.full_messages.each do |msg| %>
    <li><%= msg %></li>
  <% end %>
  </ul>
</div>
<% end %>

form.html.erb

<%= form_for @user, :url => user_path do |f| %>
<%= render "shared/error_messages", :target => @user %>
  <p>
    <%= f.label :email %>
    <%= f.text_field :email %>
  </p>
  <p>
    <%= f.label :password %>
    <%= f.password_field :password %>
  </p>
  <p class="actions"><%= f.submit %></p>
<% end %>

awesome