mongoid - 通过Tire(mongoid4，rails4)插入新文档后，Elasticsearch映射未更新

Question

最近，我在使用rails4 / mongoid4 / tire进行 flex 搜索时遇到了一个奇怪的行为。我设法进行了临时修复，但我想知道是否有更清洁的解决方案以及问题的确切出处(这是Elasticsearch问题吗？)

我的Gemfile的相关部分

gem 'rails', '4.0.0'
gem "mongoid", github: 'mongoid/mongoid'
gem 'tire'

Elasticsearch版本:

  "version" : {
    "number" : "0.90.2",
    "snapshot_build" : false,
    "lucene_version" : "4.3.1"
  }

我的模特:

我模型的相关部分包括广告类:

class Ad
  include Mongoid::Document
  field :title, type: String
  [... other stuff...]
end

和广告子类，其中之一是:

class AdInAutomotiveAutomobile < Ad
  field :make
  field :model
  field :body_type
  tire.index_name 'ads'
  [... other stuff ...]
end

使用继承似乎没有任何重要性，但我仅出于记录目的提及它

问题

插入新广告不会更新“广告”索引的映射

{
  "ads": {
    "ad_in_automotive_automobile": {
      "properties": {
        "$oid": {
          "type": "string"
        }
      }
    }
  }
}

日志输出，已精简:

# 2013-08-02 15:40:58:387 [ad_in_automotive_automobile/51fbb6b26f87e9ab1d000001] ("ads")
#
curl -X POST "http://localhost:9200/ads/ad_in_automotive_automobile/51fbb6b26f87e9ab1d000001" -d '{
  "_id": {
    "$oid": "51fbb6b26f87e9ab1d000001"
  },
  "active": null,
  "body_type": "hatchback",
  "c_at": "2013-08-02T13:40:57.647Z",
  "category_id": {
    "$oid": "51e8020c6f87e9b8e0000001"
  },
  "color": null,
  "description": null,
  "engine_displacement": null,
  "expire_at": null,
  "fuel_type": null,
  "locale": null,
  "make": "ford",
  "meta": {},
  "mileage": null,
  "model": "focus",
  "power": null,
  "price": null,
  "title": "foo",
  "transmission": null,
  "u_at": "2013-08-02T13:40:57.647Z",
  "year": null,
  "category_slug": "automotive-automobile"
}'

# 2013-08-02 15:40:58:388 [201]
#
# 
{
  "ok": true,
  "_index": "ads",
  "_type": "ad_in_automotive_automobile",
  "_id": "51fbb6b26f87e9ab1d000001",
  "_version": 1
}

解决方案

不知何故，这:

"_id":{"$oid":"51fbb6b26f87e9ab1d000001"}

正在停止Elasticsearch更新映射
所以我已经在 #to_indexed_json方法中“解决”了这个问题:

  def to_indexed_json
    to_json(methods: [:category_slug]).gsub( /\{\"\$oid\"\:(\".{24}\")\}/ ) { $1 }
  end

结果是:

# 2013-08-02 15:50:08:689 [ad_in_automotive_automobile/51fbb8fb6f87e9ab1d000002] ("ads")
#
curl -X POST "http://localhost:9200/ads/ad_in_automotive_automobile/51fbb8fb6f87e9ab1d000002" -d '{
  "_id": "51fbb8fb6f87e9ab1d000002",
  "active": null,
  "body_type": "hatchback",
  "c_at": "2013-08-02T13:50:08.593Z",
  "category_id": "51e8020c6f87e9b8e0000001",
  "color": null,
  "description": null,
  "engine_displacement": null,
  "expire_at": null,
  "fuel_type": null,
  "locale": null,
  "make": "ford",
  "meta": {},
  "mileage": null,
  "model": "focus",
  "power": null,
  "price": null,
  "title": "foo",
  "transmission": null,
  "u_at": "2013-08-02T13:50:08.593Z",
  "year": null,
  "category_slug": "automotive-automobile"
}'

# 2013-08-02 15:50:08:690 [201]
#
# 
{
  "ok": true,
  "_index": "ads",
  "_type": "ad_in_automotive_automobile",
  "_id": "51fbb8fb6f87e9ab1d000002",
  "_version": 1
}

现在映射就可以了:

{
  "ads": {
    "ad_in_automotive_automobile": {
      "properties": {
        "$oid": {
          "type": "string"
        },
        "body_type": {
          "type": "string"
        },
        "c_at": {
          "type": "date",
          "format": "dateOptionalTime"
        },
        "category_id": {
          "type": "string"
        },
        "category_slug": {
          "type": "string"
        },
        "make": {
          "type": "string"
        },
        "meta": {
          "type": "object"
        },
        "model": {
          "type": "string"
        },
        "title": {
          "type": "string"
        },
        "u_at": {
          "type": "date",
          "format": "dateOptionalTime"
        }
      }
    }
  }
}

问题，再次

为什么会发生？

堆栈的哪一部分负责？

可以用更清洁的方式固定它吗？

Answer 1

我是评论中的人，看来这已固定在轮胎HEAD中，请看此问题https://github.com/karmi/tire/issues/775。自从我给类(class)打补丁以来，我还没有验证过此修复程序。如果您想这样做，这是补丁:

require "tire"
module Tire
  class Index
    def get_id_from_document(document)
     case
        when document.is_a?(Hash)
          document[:_id] || document['_id'] || document[:id] || document['id']
        when document.respond_to?(:id) && document.id != document.object_id
          document.id.to_s   # was document.id.as_json
      end
    end
  end
end