add theme1 with subnavigation first setup kind of ugly layout

app/helpers/application_helper.rb

@@ -221,4 +221,35 @@ module ApplicationHelper
       end
     end
   end
+
+  # used for rendering page trees
+  def tree_ul(acts_as_tree_set, options = {}, &block)
+    # If only one option is given, a select is assumed
+    options = {:select => options} unless options.is_a?(Hash)
+    # Ensure a select option
+    options[:select] ||= lambda{|p| true}
+    options[:select] = options[:select].to_proc if options[:select].is_a?(Symbol)
+    block ||= lambda{|item| item.name }
+    acts_as_tree_set.reject!{|m| not options[:select].call(m)}
+    ret = ''
+    if acts_as_tree_set.size > 0
+      if list_id = options.delete(:list_id).presence
+        ret = %|<ul id="#{list_id}">|
+      else
+        ret = "<ul>"
+      end
+      acts_as_tree_set.collect do |item|
+        #next if item.parent_id && init
+        ret += '<li>'
+        ret += capture(item, &block)
+        #tmp = tree_ul(item.children, checker, &block) if item.children.size > 0
+        #return "#{tmp} is no valid result\n\n" unless tmp.is_a?(String)
+        #ret += tmp
+        ret += tree_ul(item.children, options, &block) if item.children.size > 0
+        ret += '</li>'
+      end
+      ret += '</ul>'
+    end
+    ret.html_safe
+  end
 end