How to get last record? (JS)

I need to get last date time like 24-02-11 (updated desc) of my question but through JavaScript. My way doesnt work, but $time or $all_users working perfectly.

my_controller
  $all_users                 = User.count('id')
    $last_question             = Question.find(:last, :order => "updated_at DESC", :limit => 1)
  $time                      = Time.now.strftime("%d %B, %Y")

my_layout_view

  <% javascript_tag do %>
    Ext.BLANK_IMAGE_URL = '<%= image_path '/ext/resources/images/default/s.gif' %>';
    <%= "time = \"#{$time}\"" %>;
    <%= "last_question = \"#{$last_question}\"" %>;
  <% end %> 

my_view

..........
    items : [
         {
         region      : 'north',
         minWidth    : 75,
         height      : 35,
         maxWidth    : 150,
         collapsible : false开发者_如何学Python,
         resizable   : false,   
         width       : 400,
         html        : 'Last question was:' <b> + last_question + '</b>',                 
                }
.......................

$last_question would return a Question object - not a string. You need to get a specific value from your Question model and return it.

:order => "updated_at DESC will sort your items, but doesn't tell the find to only return the updated_at time.