ruby-on-rails - 带mongoid的elasticsearch-rails-本文的未定义方法as_indexed_json

Question

嗨，我正在我的Rails + mongo应用程序中尝试使用elasticsearch-rails。
我正在为索引使用映射块，但是当我尝试通过以下方式将记录导入到elasticsearch中时

Article.import

它为我提供了文章的错误未定义方法as_indexed_json

而且，如果我为此创建任何文章和注释，则它将为elasticsearch服务器中的文章模型的所有属性创建索引，但不会为我在映射块中提到的嵌套注释属性创建索引

我在sqlite3数据库中尝试了同样的方法，但一切正常，但在mongodb数据库中却无法正常工作

gem 文件

..................... .....  
..................... .....  
gem "elasticsearch", :git => "git://github.com/elasticsearch/elasticsearch-ruby.git"     
gem "elasticsearch-model", :git => "git://github.com/elasticsearch/elasticsearch-rails.git"
gem "elasticsearch-rails", :git => "git://github.com/elasticsearch/elasticsearch-rails.git"

config / initializers / elasticsearch.rb

Elasticsearch::Model.client = Elasticsearch::Client.new host: 'http://localhost:9200'

app / models / article.rb

class Article
  include Mongoid::Document
  include Mongoid::Timestamps
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks

  field :title, :type => String
  field :content, :type => String
  field :published_on, :type => Date
  field :abstract, :type => String

  has_many :comments

  index_name "name_of_elasticsearch"

  settings index: { number_of_shards: 1, number_of_replicas: 0 } do
    mapping do
      indexes :_id, :as => "_id.to_s", :index => "not_analyzed"
      indexes :title, :type => "string", :index => "not_analyzed"
      indexes :content, :type => "string", :index => "not_analyzed"
      indexes :published_on, :type => "date"

      indexes :comments, type: 'nested' do
        indexes :body, analyzer: 'snowball'
        indexes :stars
        indexes :pick
        indexes :user, analyzer: 'keyword'
        indexes :user_location, type: 'multi_field' do
          indexes :user_location
          indexes :raw, analyzer: 'keyword'
        end
      end 
   end 
 end
end  

app / models / comments.rb

class Comment
   include Mongoid::Document
   include Mongoid::Timestamps

   field :body, :type => String
   field :pick, :type => String
   field :stars, :type => Date
   field :user, :type => String
   field :user_location, :type => String

   belongs_to article
end

提前致谢

Answer 1

您需要显式定义as_indexed_json方法:

  def as_indexed_json(options={})
    as_json()
  end

就我而言，这对完全相同的问题有所帮助。