rails, select2 and ajax

application.js

// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// the compiled file.
//
// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
// GO AFTER THE REQUIRES BELOW.
//
//= require jquery
//= require jquery_ujs
//= require select2
//= require ckeditor-jquery
//= require_tree .
 $(document).ready(function() {
    $('#test').select2({
        minimumInputLength: 3,
        placeholder: 'Search',
        ajax: {
            url: "/search",
            dataType: 'json',
            quietMillis: 100,
            data: function(term, page) {
                return {                                       
                    term: term
                };
            },
            results: function(data, page ) {
                return { results: data.users }
            }
        },
        formatResult: function(user) { 
            return "<div class='select2-user-result'>" + user.hodem + " " + user.ten + "</div>"; 
        },
        formatSelection: function(user) { 
            return user.hodem + " " + user.ten; 
        },
        initSelection : function (element, callback) {
            var elementText = $(element).attr('data-init-text');
            callback({"term":elementText});
        }
    });
});

home_controller.rb

require "xmlrpc/client"



class HomeController < ApplicationController
  before_filter :init_client
  def all
    result = @client.call("sample.sumAndDifference", "*:*")
	render json: {:users => JSON.parse(result) }
  end
  def search
  	  	# Make an object to represent the XML-RPC server.
	param = params[:term] || ""

	# Call the remote server and get our result
	result = @client.call("sample.sumAndDifference", "*#{param}*")

	
	render json: {:users => JSON.parse(result) }
  end
  def index
	

  end
  private
  def init_client
	@client = XMLRPC::Client.new( "localhost", "/", 8080)
  end
end

index.html.erb

<input type='hidden' value="192" data-init-text='Bla bla' name='input' id='test' style="width:300px;"/>