orbit-basic/app/controllers/pages_controller.rb

class PagesController < ApplicationController
  
  Liquid::Template.register_filter(SnippetFilter)
  
  def show
    @page = Page.find_by_name(params[:page_name])
    @layout = @page.layout
    
    if @page
       @page_content = Liquid::Template.parse(@page.content).render
       @layout_content = (@page.layout)? @layout.content : "{{page_content}}"
       render :text => Liquid::Template.parse(@layout_content).render( 'page_content' => @page_content )
    else
      render :text => '404 not found'
    end
    
  end
  
end