rails errors

gistfile1.erb

<% if @entry.errors.include?(:state) %>
<div class="control-group">
  <div class="controls">
    <div class="error"> <%= @entry.errors["state"][0]  %></div>
  </div>
</div>
<% end %>


###############OR

#in application rb
 Include the errors in the html fields
 ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
   "<div class=\"field_with_errors\">
       #{html_tag}
       <div class=\"error\">#{instance.error_message.first}</div>
     </div>".html_safe
 end