ruby-on-rails - 如何使用Searchkick和Rails处理嵌套文档？

Question

我有equity_contracts表，其中有一个user_contract和许多prices。 EquityContract模型如下所示:

class EquityContract < ActiveRecord::Base
  validates_presence_of :ticker, :name, :country, :currency

  has_one :user_contract, as: :contract
  has_many :prices

  searchkick

  scope :search_import, -> { includes(:user_contract, :prices) }

  def search_data
    {
      name: name,
      ticker: ticker,
      country: country,
      user_id: user_contract.try(:user_id),
      prices: prices.map do |price|
        {
          traded_on: price.traded_on.to_s,
          close: price.close
        }
      end
    }
  end
end

UserContract如下所示:

class UserContract < ActiveRecord::Base
  belongs_to :user
  belongs_to :contract, polymorphic: true
end

现在我想索引 name中的键( ticker， country， user_id， prices， EquityContract)，以便运行 EquityContract.reindex。

现在，当我尝试做类似 equity = EquityContract.search "APPL_US"的操作时，我得到了 Searchkick::Results对象，看起来像这样:

[24] pry(main)> equity = EquityContract.search "APPL_US", limit: 1
ETHON: performed EASY effective_url=http://127.0.0.1:9200/equity_contracts_development/_search response_code=200 return_code=ok total_time=0.101687
  EquityContract Search (109.5ms)  curl http://127.0.0.1:9200/equity_contracts_development/_search?pretty -d '{"query":{"dis_max":{"queries":[{"match":{"_all":{"query":"APPL_US","operator":"and","boost":10,"analyzer":"searchkick_search"}}},{"match":{"_all":{"query":"APPL_US","operator":"and","boost":10,"analyzer":"searchkick_search2"}}},{"match":{"_all":{"query":"APPL_US","operator":"and","boost":1,"analyzer":"searchkick_search","fuzziness":1,"prefix_length":0,"max_expansions":3}}},{"match":{"_all":{"query":"APPL_US","operator":"and","boost":1,"analyzer":"searchkick_search2","fuzziness":1,"prefix_length":0,"max_expansions":3}}}]}},"size":1,"from":0,"fields":[]}'
=> #<Searchkick::Results:0x0000036f6915a0
 @klass=
  EquityContract(id: integer, ticker: text, name: string, country: string, currency: string, created_at: datetime, updated_at: datetime),
 @options=
  {:page=>1,
   :per_page=>1,
   :padding=>0,
   :load=>true,
   :includes=>nil,
   :json=>false,
   :match_suffix=>"analyzed",
   :highlighted_fields=>[]},
 @response=
  {"took"=>99,
   "timed_out"=>false,
   "_shards"=>{"total"=>5, "successful"=>5, "failed"=>0},
   "hits"=>
    {"total"=>3,
     "max_score"=>0.005845671,
     "hits"=>
      [{"_index"=>"equity_contracts_development_20160317185615341",
        "_type"=>"equity_contract",
        "_id"=>"234",
        "_score"=>0.005845671}]}}>

这里的主要问题是，我想像以前一样查看索引结果，并查看字段的结果( name， ticker， country， user_id， prices)。

当我尝试通过RESTful API访问ElasticSearch时:

curl http://127.0.0.1:9200/equity_contracts_development/_search\?pretty -d '{"query":{"filtered":{"query":{"match_all":{}},"filter":{"and":[{"not":{"filter":{"missing":{"field":"user_id","existence":true,"null_value":true}}}}]}}},"size":100,"from":0,"fields":[]}'

我得到的结果是:

{
  "took" : 54,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 207,
    "max_score" : 1.0,
    "hits" : [ {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "64",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "83",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "90",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "127",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "139",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "590",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "608",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "622",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "658",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "665",
      "_score" : 1.0
    }, {
      "_index" : "equity_contracts_development_20160317185615341",
      "_type" : "equity_contract",
      "_id" : "672",
      "_score" : 1.0
    }]
  }
}

如何查看相关的映射对象的结果，例如 prices中的结果？目前， equity.results返回 Activity 记录对象 EquityContract的数组，而不返回索引属性。

我想返回 EquityContract#search_data中指定的属性，并尝试 equity.response['hits']['hits']位，其中不包含所需的属性。有任何想法吗？

Answer 1

看来我必须将load: false添加到#search中，例如:

equity = EquityContract.search "APPL_US", limit: 1, load: false

然后，我将获得带有响应的 _source，其中包括属性。您可以将 source=true添加到HTTP请求中，并且应该获得响应的完整属性。