gistfile1.rb

module DatatablesRails
    class Structify 
      attr_accessor :struct
      def initialize(data)
        @struct = {}
        @struct = data.collect{|d| d.attributes }        
      end
      
      def formatter(&block)
        #block.call(@struct)
        @struct.each do |s|
          block.call(s)
        end
      end

  end
end


def index
    respond_to do |format|
      format.html
      format.json { 
        tmp = {}
        tmp = DatatablesRails::Structify.new(users_and_roles)
        tmp.formatter {|u| 
          logger.info u['id']
          u['edit'] = "<a href='#{edit_admin_user_path(u['id'])}' class='button_button'>Edit</a>"
        }
        render :json => tmp.struct }
    end
  end