cms_helper.rb

module CmsHelper
  
  def embed_calendar_widget(area_slug)
    calendar = Cms::Page.find_by_slug("#{area_slug}_calendar")

    is_enabled = get_page_block(calendar.blocks, "is_enabled")
    widget_body = get_page_block(calendar.blocks, "widget_body")
    
    if is_enabled == 'true'
      content_tag(:div, widget_body, :id => "calendar_widget")
    end
  end

  private

  def get_page_block(blocks, label)
    blocks.select { |b| b["label"] == label}[0].content
  end

end

cms_helper_test.rb

require 'test_helper'

class CmsHelperTest < ActionView::TestCase
  fixtures :all

  def setup
    build_calendar_widget_layout
    build_calendar_pages
  end

  def test_embed_calendar_widget
    render :text => embed_calendar_widget("huntington")
    assert_select "div#calendar_widget", "huntington embedded calendar code"
  end

  def test_calendar_does_not_embed_when_not_enabled
    render :text => embed_calendar_widget("fivesisters")
    assert_select "div#calendar_widget", false, "fivesisters embedded calendar code" 
  end

 private 

 def build_calendar_widget_layout
   
    @calendar_widget_layout = cms_sites(:default).layouts.create(
      :label    => 'Calendar Widget',
      :slug     => 'calendar_widget',
      :content  => '{{cms:page:widget_body:text}} {{cms:page:is_calendar:string}} {{cms:page:is_enabled:string}} {{cms:page:area_slug:string}}',
      :css      => 'css',
      :js       => 'js'
    )
 end

 def build_calendar_pages

    @calendar_widget = cms_sites(:default).pages.create!(
      :slug => "huntington_calendar", 
      :label => "Huntington Calendar Widget",
      :parent => cms_pages(:default), 
      :layout => @calendar_widget_layout,
      :blocks_attributes => [
          {
            :label        => 'widget_body',
            :content  => 'huntington embedded calendar code'
          },
          {
            :label        => 'area_slug',
            :content  => 'huntington'
          },
          {
            :label        => 'is_enabled',
            :content  => 'true'
          },
          {
            :label        => 'is_calendar',
            :content  => 'true'
          }
        ]
      )

    @calendar_widget = cms_sites(:default).pages.create!(
      :slug => "fivesisters_calendar", 
      :label => "Five Sisters Calendar Widget",
      :parent => cms_pages(:default), 
      :layout => @calendar_widget_layout,
      :blocks_attributes => [
          {
            :label        => 'widget_body',
            :content  => 'five sisters embedded calendar code'
          },
          {
            :label        => 'area_slug',
            :content  => 'fivesisters'
          },
          {
            :label        => 'is_enabled',
            :content  => 'false'
          },
          {
            :label        => 'is_calendar',
            :content  => 'true'
          }
        ]
      )
 end

end