elasticsearch-model/spec/support/app/article.rb

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#
#   http://www.apache.org/licenses/LICENSE-2.0
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class ::Article < ActiveRecord::Base
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks

  settings index: {number_of_shards: 1, number_of_replicas: 0} do
    mapping do
      indexes :title, type: 'text', analyzer: 'snowball'
      indexes :body, type: 'text'
      indexes :clicks, type: 'integer'
      indexes :created_at, type: 'date'
    end
  end

  def as_indexed_json(options = {})
    attributes
        .symbolize_keys
        .slice(:title, :body, :clicks, :created_at)
        .merge(suggest_title: title)
  end
end