gistfile1.rb

class Page < ActiveRecord::Model
  scope :by_permalink, -> { |permalink| where(:permalink => permalink) }
  
  def content_data
    Oj.load(content)
  end
  
  def self.find_by_permalink(permalink)
    by_permalink(permalink).first
  end
end

class PagesController < ApplicationController
  def show_static
    # code to retrieve the correct subdomain
    @page = Page.find_by_permalink(subdomains.first)
    @feature = Feature.new(@page.user)
    @data = @page.data_content # usually we change some of the content but it's been deactivated
    
    render :show, :layout => 'show', :formats => [:html]
  end
end