Message chat for rails using ajax

In message controller.rb


class MessagesController < ApplicationController
  # GET /messages
  def index
   @messages=Message.all
    @raj=Message.new
  end

  def create
    @message = Message.create!(params[:message])
  end
end

In messages/index.html

<h2>Chat</h2>

<ul style="background-color:#aaaaaa;width: 100px;border:1px solid blueviolet;" id="chat">

  <%= render :partial => @messages%>

</ul>

<div id="message_form">

<%= form_for(@raj, :remote=>true) do |f| %>

  <div class="field">

    <%= f.text_field :content %>

  </div>

  <div class="actions">

    <%= f.submit 'Send' %>

  </div>

<% end %>

</div>

In messages/_message.html.erb

<%= content_tag_for(:li, message) do %>

  <%= message.content %>

<% end %>

In messages/create.js.erb

$('#chat').append('<%= escape_javascript(render(@message)) %>');

$("#message_form")[0].reset();