Automatically update index with elasticsearch-rails

I am implementing a completion helper using a gem elasticsearch-rails

. Everything works except update or uninstall.

For example, when I update the title of an article and try to do research again, the same title still exists.

I have included Elasticsearch::Model::Callbacks

Model:

require 'elasticsearch/model'

class Article < ActiveRecord::Base
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks

  def self.suggest(query)
    Article.__elasticsearch__.client.suggest(:index => Article.index_name, :body => {
        :suggestions => {
            :text => query,
            :completion => {
                :field => 'suggest'
            }
        }
    })
  end

 settings :index => { :number_of_shards => 1 } do
   mappings :dynamic => 'false' do
     indexes :title, :type => 'string', :analyzer => 'english'
     indexes :suggest, :type => 'completion', :index_analyzer => 'simple', :search_analyzer =>       'simple', :payloads => true
   end
  end

  def as_indexed_json(options={})
    {
        :name => self.title,
        :suggest => {
            :input => [self.title, self.content],
            :output => self.title,
            :payload => {
                :id => self.id,
                :content => self.content
            }
        }
    }
  end
end

      

        
        
        
      

    

Controller:

class ArticlesController < ApplicationController
  def update
    @article = Article.find(params[:id])

    if @article.update_attributes(article_params)
       render :json => @article
    else
       render :json => @article.errors
    end
  end
  # ...
end