如何使用HAML渲染方法escape_javascript

Question

我想用新的消息替换所有消息，并再次将计时器设置为关闭。但脚本index.js.erb不呈现消息。

我做了以下事情：

polling.coffee：

window.Poll = ->
  setTimeout ->
    $.get('/messages')
  , 5000

jQuery ->
  Poll() if $('#messages').size() > 0

index.js.erb的

$('#messages').find('.media-list').html('#{<%= escape_javascript(render(
                                   :partial => @messages,
                                   :layout => false
                                    ))%>}');

window.Poll();

我在application.js

中添加了// = require polling

new.html.haml

- if current_user
  .panel.panel-default#messages
    .panel-body
      %ul.media-list
        = render @messages

  .page-header
    %h1 Join the discussion!
  = render "form"
- else
  visit root_path

escape_javascript有什么问题（渲染....？如何正确传递给HAML？

更多代码：

class MessagesController < ApplicationController
  before_action :authenticate_user!

  def index
    @messages = Message.order('created_at ASC')
  end

  def new
    @message = Message.new
    @messages = Message.order('created_at ASC')
  end

  def create
    respond_to do |format| 
      @message = current_user.messages.build(message_params)
      if @message.save
        flash[:success] = 'Your message was successfully posted!'
      else
        flash[:error] = 'Your message cannot be post!'
      end

      format.html{ redirect_to root_path }
      format.js
    end  
  end

  private

  def message_params
    params.require(:message).permit(:body)
  end
end