Elasticsearch-rails补全建议器、映射数据、创建索引、建议方法

Question

我正在使用 elasticsearch-model 和 elasticsearch-rails 个宝石。

在我的个人资料模型中，我有

settings index: { number_of_shards: 3 } do
    mappings dynamic: 'false'  do
      indexes :profile_type, analyzer: 'keyword'
      indexes :profile do |p|
        indexes :name, type: 'multi_field' do
          indexes :name, analyzer: 'snowball'
          indexes :tokenized, analyzer: 'keyword'
        end
      end
    end
 end

我尝试添加 suggest 字段

settings index: { number_of_shards: 3 } do
    mappings dynamic: 'false'  do
      indexes :profile_type, analyzer: 'keyword'
      indexes :suggest, type: 'suggest' # not sure about this
      # do not really know how to index this field
      indexes :profile do |p|
        indexes :name, type: 'multi_field' do
          indexes :name, analyzer: 'snowball'
          indexes :tokenized, analyzer: 'keyword'
        end
      end
    end
 end

我正在尝试在 profile.name 上提出建议，我添加了 as_indexed_json

def as_indexed_json(options={})
    suggest= {
     suggest: {
      :input => profile.name,
      :output => profile.name,
      :payload => {
        name: profile.name
      }
     }
    }
    self.as_json(
      :only => [:profile_type, :slug],
      :include => {
        :profile => {}
      }
    ).merge(suggest)
end

任何帮助，任何建议，我们将不胜感激。

Answer 1

我想出了如何映射数据，使用 elasticsearch-rails gem

settings index: { number_of_shards: 3 } do
    mappings dynamic: 'false'  do
      indexes :profile_type, analyzer: 'keyword'
      indexes :suggest, type: 'completion', index_analyzer: 'simple', search_analyzer: 'simple', payloads: true
      # will do the trick
      indexes :profile do |p|
        indexes :name, type: 'multi_field' do
          indexes :name, analyzer: 'snowball'
          indexes :tokenized, analyzer: 'keyword'
        end
      end
    end
 end

然后创建索引

def as_indexed_json(options={})
    suggest= {
     suggest: {
      :input => profile.name,
      :output => profile.name,
      :payload => {
        name: profile.name
      }
     }
    }
    self.as_json(
      :only => [:profile_type, :slug],
      :include => {
        :profile => {}
      }
    ).merge(suggest)
end

那就不要用search方法，改用suggest方法

  def self.suggest query
    __elasticsearch__.client.suggest(:index => index_name, :body => {
      :suggestions => {
        :text => query,
        :completion => {
          :field => 'suggest',
          :size => 20
        }
      }
    })
  end

这样你就可以得到complete suggestion

Elasticsearch-rails补全建议器、映射数据、创建索引、建议方法

Elasticsearch-rails completion suggester, map data, create indexes, suggest method

ruby

ruby-on-rails

elasticsearch

elasticsearch-rails