module Elasticsearch::Model::Callbacks

Allows to automatically update index based on model changes, by hooking into the model lifecycle.

@note A blocking HTTP request is done during the update process.

If you need a more performant/resilient way of updating the index,
consider adapting the callbacks behaviour, and use a background
processing solution such as [Sidekiq](http://sidekiq.org)
or [Resque](https://github.com/resque/resque).

Public Class Methods

included(base) click to toggle source

When included in a model, automatically injects the callback subscribers (`after_save`, etc)

@example Automatically update Elasticsearch index when the model changes

class Article
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks
end

Article.first.update_attribute :title, 'Updated'
#  SQL (0.3ms)  UPDATE "articles" SET "title" = ...
#  2013-11-20 15:08:52 +0100: POST http://localhost:9200/articles/article/1/_update ...
# File lib/elasticsearch/model/callbacks.rb, line 45
def self.included(base)
  adapter = Adapter.from_class(base)
  base.__send__ :include, adapter.callbacks_mixin
end