Question

我正在使用弹性搜索来增强我的应用中的搜索功能。搜索工作正常，但排序不适用于包含多个单词的字段。

当我尝试按日志'消息'对搜索进行排序时，我收到错误：

“无法对每个文档具有多个值的字符串类型进行排序，或者每个字段使用多个标记”

我用Google搜索了错误，发现我可以在：message字段上使用多字段映射（一个分析，另一个没有）来对它们进行排序。所以我这样做了：

class Log < ActiveRecord::Base
  include Tire::Model::Search
  include Tire::Model::Callbacks

  tire.mapping do
    indexes :id, index: :not_analyzed
    indexes :source, type: 'string'
    indexes :level, type: 'string'
    indexes :created_at, :type => 'date', :include_in_all => false
    indexes :updated_at, :type => 'date', :include_in_all => false
    indexes :message, type: 'multi_field', fields: { 
      analyzed: {type: 'string', index: 'analyzed'},
      message: {type: 'string', index: :not_analyzed} 
    }
    indexes :domain, type: 'keyword'
  end
end

但是，由于某种原因，没有将此映射传递给ES。

rails console
Log.index.delete #=> true
Log.index.create #=> 200 : {"ok":true,"acknowledged":true}
Log.index.import Log.all #=> 200 : {"took":243,"items":[{"index":{"_index":"logs","_type":"log","_id":"5 ... ...

# Index mapping for :message is not the multi-field 
# as I created in the Log model... why?

Log.index.mapping
=> {"log"=>
  {"properties"=>
    {"created_at"=>{"type"=>"date", "format"=>"dateOptionalTime"},
     "id"=>{"type"=>"long"},
     "level"=>{"type"=>"string"},
     "message"=>{"type"=>"string"},
     "source"=>{"type"=>"string"},
     "updated_at"=>{"type"=>"date", "format"=>"dateOptionalTime"}}}}

# However if I do a Log.mapping I can see the multi-field
# how I can fix that and pass the mapping correctly to ES? 

Log.mapping
=> {:id=>{:index=>:not_analyzed, :type=>"string"},
 :source=>{:type=>"string"},
 :level=>{:type=>"string"},
 :created_at=>{:type=>"date", :include_in_all=>false},
 :updated_at=>{:type=>"date", :include_in_all=>false},
 :message=>
  {:type=>"multi_field",
   :fields=>
    {:message=>{:type=>"string", :index=>"analyzed"},
     :untouched=>{:type=>"string", :index=>:not_analyzed}}},
 :domain=>{:type=>"keyword"}}

因此，Log.index.mapping是ES中的当前映射，它不包含我创建的多字段。我错过了什么吗？以及为什么多字段显示在Log.mapping但不显示在Log.index.mapping？

中

Answer 1

我更改了工作流程：

Log.index.delete; Log.index.create; Log.import

到

Log.index.delete; Log.create_elasticsearch_index; Log.import

MyModel.create_elasticsearch_index使用模型定义中的正确映射创建索引。请参阅轮胎问题#613。

为什么多场映射不适用于有弹性搜索的轮胎宝石？

1 个答案: