Apotomo support for builders

apotomo_builders.rb

# in lib/apotomo/widget.rb
# This comes redundant with Cells internals, but this is due to what may be a flaw in current Apotomo's design,
# which bypass Cells workflow (render_cell_for) and hook directly into AbstractController::Rendering #render_state

    # Renders the +widget+ (instance or id).
    def render_widget(widget_id, state=:display, *args)
      if widget_id.kind_of?(Widget)
        widget = widget_id
      else
        widget = find_widget(widget_id) or raise "Couldn't render non-existent widget `#{widget_id}`"
      end

      # *** added ***
      # Ensure the proper widget class is used in case the widget delegates to some other fellow
      target_class = self.class.build_class_for(parent_controller, widget.class, args.first)
      if widget.class != target_class
        widget = target_class.new(parent_controller, widget_id, args.first)
      end
      # *** /added ***

      widget.invoke(state, *args)
    end