36 lines
1.2 KiB
Ruby
36 lines
1.2 KiB
Ruby
module Elasticsearch
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module Model
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# Allows to automatically update index based on model changes,
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# by hooking into the model lifecycle.
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#
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# @note A blocking HTTP request is done during the update process.
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# If you need a more performant/resilient way of updating the index,
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# consider adapting the callbacks behaviour, and use a background
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# processing solution such as [Sidekiq](http://sidekiq.org)
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# or [Resque](https://github.com/resque/resque).
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#
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module Callbacks
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# When included in a model, automatically injects the callback subscribers (`after_save`, etc)
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#
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# @example Automatically update Elasticsearch index when the model changes
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#
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# class Article
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# include Elasticsearch::Model
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# include Elasticsearch::Model::Callbacks
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# end
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#
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# Article.first.update_attribute :title, 'Updated'
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# # SQL (0.3ms) UPDATE "articles" SET "title" = ...
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# # 2013-11-20 15:08:52 +0100: POST http://localhost:9200/articles/article/1/_update ...
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#
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def self.included(base)
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adapter = Adapter.from_class(base)
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base.__send__ :include, adapter.callbacks_mixin
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end
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end
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end
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end
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