preventing recursive loop when used as engine in an app

app/cells/admin/menu_cell.rb

@@ -40,6 +40,8 @@ class Admin::MenuCell < Cell::Base
     method_name = "build_list_with_#{name}".to_sym
     previous_method_name = "build_list_without_#{name}".to_sym
 
+    unless self.instance_methods.include?(method_name) # prevents the method to be called twice which will raise a "stack level too deep" exception
+
       self.send(:define_method, method_name) do
         self.send(previous_method_name)
         block.call(MenuProxy.new(self))
@@ -47,6 +49,8 @@ class Admin::MenuCell < Cell::Base
 
       # Note: this might cause "stack level too deep" if called twice for the same name
       alias_method_chain :build_list, name.to_sym
+
+    end
   end
 
   protected

app/cells/admin/settings_menu_cell.rb

@@ -1,4 +1,4 @@
-class Admin::SettingsMenuCell < ::Admin::MenuCell
+class Admin::SettingsMenuCell < ::Admin::SubMenuCell #::Admin::MenuCell
 
   protected
 
@@ -8,10 +8,10 @@ class Admin::SettingsMenuCell < ::Admin::MenuCell
     add :account, :url => edit_admin_my_account_url
   end
 
-  def build_item(name, attributes)
+  # def build_item(name, attributes)
-    item = super
+  #   item = super
-    enhanced_class = "#{'on' if name.to_s == sections(:sub)} #{item[:class]}"
+  #   enhanced_class = "#{'on' if name.to_s == sections(:sub)} #{item[:class]}"
-    item.merge(:class => enhanced_class)
+  #   item.merge(:class => enhanced_class)
-  end
+  # end
 
 end

app/cells/admin/sub_menu_cell.rb

@@ -0,0 +1,11 @@
+class Admin::SubMenuCell < ::Admin::MenuCell
+
+  protected
+
+  def build_item(name, attributes)
+    item = super
+    enhanced_class = "#{'on' if name.to_s == sections(:sub)} #{item[:class]}"
+    item.merge(:class => enhanced_class)
+  end
+
+end