messages_controller.rb

class MessagesController < ApplicationController
  class IndexContext
    # Cargo cult this include
    include ActionView::Context

    def initialize controller, person
      @person = person
      @controller = controller
      _prepare_context
    end

    def messages
      Message.for(@person)
    end

    def lookup_context
      @controller.lookup_context
    end
  end

  def index
    return redirect_to '/' unless session.person?
    @view_context = IndexContext.new(self, session.person)
  end

  private

  def view_context
    @view_context || super
  end
end