ruby - 使用 elasticsearch 过滤带空格的标签

Question

我正在使用带有 mongoid 的轮胎 (https://github.com/karmi/tire)。这是我的模型定义:

class SomethingWithTag
  include Mongoid::Document
  include Mongoid::Timestamps
  field :tags_array, type: Array

  include Tire::Model::Search
  include Tire::Model::Callbacks
  mapping do
      indexes :tags_array, type: :array, index: :not_analyzed
  end
end

假设我有一个文档 {tags_array: ["hello world"]}。然后下面的查询工作正常:

SomethingWithTag.tire.search { filter :terms, :tags_array => ["hello"] }
SomethingWithTag.tire.search { filter :terms, :tags_array => ["world"] }
SomethingWithTag.tire.search { filter :terms, :tags_array => ["hello", "world"] }

但以下不返回任何结果:

SomethingWithTag.tire.search { filter :terms, :tags_array => ["hello world"] }

我应该怎么做才能让它发挥作用？

编辑:这是要测试的一小段代码:http://pastebin.com/n1rUtK3e

Answer 1

问题解决时间:

对 tags_array 属性使用 keyword 分析器:

class SomethingWithTag
  # ...
  mapping do
    indexes :tags_array, analyzer: 'keyword'
  end
end