// description of your code here
In your controller add the name of the .rhtml file in <project>/apps/layouts/ that you want to use, without the suffix (.rhtml).
When rails spits out your view, it will use this given layout as the container for your rendered action.

layout "<layout_name>"

// How to use Views to display Gmap of nodes of node-type?
// http://drupal.org/node/73420
// http://drupal.org/files/issues/gmap_view.patch

--- gmap.module  2006-07-15 12:23:18.000000000 -0700
+++ gmap.module.new   2006-07-15 12:22:42.000000000 -0700
@@ -1191,20 +1191,21 @@
  */
 function theme_views_view_gmap($view, $nodes) {
   $fields = _views_get_fields();
+       $markers = array();
   foreach ($nodes as $node) {
     $node_data = node_load(array("nid"=>$node->nid));
     $location = $node_data->location;
-    if (strlen($location['lat'])>0 && strlen($location['lon']>0)) {
-      $newmarker['label'] = '';
+    if (($location['lat']) && ($location['lon'])) {
+                       $marker_label = "";
       foreach ($view->field as $field) {
-        $newmarker['label'] .= "<p>" . views_theme_field('views_handle_field', $field['queryname'], $fields, $field, $node) . "</p>";
+        $marker_label .= "<p>" . views_theme_field('views_handle_field', $field['queryname'], $fields, $field, $node) . "</p>";
       }
-      $newmarker['point']= $location['lat'] . ',' . $location['lon'];
-      $newmarker['markername']='drupal_view';
-      $thismap['markers'][]= $newmarker;
+      $markers[] = array('markername'=>'view',
+                                                                                               'label' => $marker_label,
+                                                                                               'point' =>$location['lat'] . ',' . $location['lon']);                                                                                        
     }
   }
+       $thismap = array('id' => 'view_gmap', 'markers' => $markers);
   $output .= gmap_draw_map($thismap);
   return $output;
 }
-

The solution—or at least a nice, cheap bandaid that can be applied easily, consists of adding a method to ActiveRecord::Base to help generate these ids without any brainpower involved.

Here’s a very simple implementation that I use in my projects, courtesy of Jamis Buck:

class ActiveRecord::Base
  def dom_id(prefix=nil)
    display_id = new_record? ? "new" : id
    prefix ||= self.class.name.underscore
    prefix != :bare ? "#{prefix.to_s.dasherize}-#{display_id}" : display_id
  end
endSo, you can do stuff like this in your views:

<ul>
<% @entries.each do |entry| %>
  <li id='<%= entry.dom_id %>'>
    <%= entry.body %>
  </li>
<% end %>
</ul>And stuff like this in your controller:

def remove_entry
  entry = JournalEntry.find(params[:id])
  update_page do |page|
    page[entry.dom_id].remove
  end
end