Cells Without ActionView

class ApplicationController < ActionController::Base
  include Trailblazer::Operation::Controller
  respond_to :html, :json, :xml
  #....
end

# app/concepts/layout/cell.rb
class Layout::Cell < Cell::App
  def show
    render
  end
  def head
    render :head
  end

  def javascripts
    render :javascripts
  end

  def stylesheets
    render :stylesheets
  end

  def header
    render :header
  end

  def flash
    render :flash
  end

  def page_title
    render :page_title
  end

  def breadcrumbs
    render :breadcrumbs
  end

  def footer
    render :footer
  end

 
  def sidebar_user_panel
    render :sidebar_user_panel
  end

 # .... etc
end


# app\views\layouts\application.haml
# !!!
%html{lang: 'en'}
  - @js = javascript_include_tag 'application'
  - @sh = stylesheet_link_tag 'application'
  = concept('layout/cell', nil, javascript: @js, stylesheet: @sh ).(:head)
  = yield :javascripts
  %body.sidebar-mini.skin-black-light.sidebar-collapse{class: "#{ controller.controller_name }" }
    .wrapper
      = concept('layout/cell', @user_session).(:header)
      = concept('layout/cell', nil).(:sidebar_left)
      %article.content-wrapper
        / Content Header (Page header)
        %section.content-header
          .row
            .col-sm-12
              .page-title.pull-left
                = concept('layout/cell', nil).(:page_title)
              .text-right.pull-right
                = concept('layout/cell', nil).(:breadcrumbs)
        = concept('layout/cell', nil, flash: flash.to_hash).(:flash)
        / Main content
        %section.content
          .row
            .col-sm-12
              = yield
      = concept('layout/cell', nil, generated_in: (Time.now - @start_time)).(:footer)
      = concept('layout/cell', nil).(:sidebar_right)
      = concept('layout/cell', nil).(:back_to_top)
      / Control Sidebar
      
      
# app/controllers\rates_controller.rb
class RatesController < ApplicationController
  include React::Rails::ViewHelper
  def index
    present Rate::Search
    #redirect_to action: :new and return if @model.empty?
    respond_with @operation do |format|
      format.html{ concept('rate/cell/react', @operation)}
      format.json{ Rate::Representer::Json::Collection}
      format.xml{ Rate::Representer::Xml::Collection}
    end
  end
  # ... 
end