Class: SuperSearch::Scroll

Inherits:
Object
  • Object
show all
Defined in:
lib/super_search/scroll.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model, term: '*', options: {}) ⇒ Scroll

ScrollSearch.new(Member, ‘*’, where: {}, order: {}, scroll: ‘5m’, size: 10000)



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# File 'lib/super_search/scroll.rb', line 7

def initialize(model, term: '*', options: {})
  self.expire_time = options.delete(:scroll) || '5m'

  # 單次筆數不得超過 10000
  self.size = options.delete(:size).to_i

  # TODO: 這裏多搜尋一次，解決效能問題
  searchkick = model.search(term, { execute: false }.merge(options))
  self.query = Searchkick::Query.new(searchkick.klass, searchkick.term, searchkick.options)
  query_inject_hack
  query.setup_scroll(expire_time)
  query.setup_size(size)
end

Instance Attribute Details

#expire_time ⇒ Object

Returns the value of attribute expire_time.



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# File 'lib/super_search/scroll.rb', line 4

def expire_time
  @expire_time
end

#query ⇒ Object

Returns the value of attribute query.



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# File 'lib/super_search/scroll.rb', line 4

def query
  @query
end

#size ⇒ Object

Returns the value of attribute size.



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# File 'lib/super_search/scroll.rb', line 4

def size
  @size
end

Instance Method Details

#query_inject_hack ⇒ Object

(hack) 改裝 Searchkick::Query



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# File 'lib/super_search/scroll.rb', line 22

def query_inject_hack
  query.instance_eval do
    # 設定遍歷參數
    def setup_scroll(scroll)
      @scroll_id = nil
      @scroll = scroll
    end

    # 設定遍歷 筆數/次
    def setup_size(size)
      @size = size
    end

    # searchkick/query line: 58
    def params
      options = { scroll: @scroll }
      options.merge!(body: { size: @size }) if @size <= 10000 && @size > 0
      super.deep_merge(options)
    end

    # searchkick/query line: 78
    def execute
      @execute = nil
      super
    end

    # searchkick/query line: 104
    def handle_response(response)
      # 從 response 設定 scroll ID
      @scroll_id = response['_scroll_id']
      super
    end

    # searchkick/query line: 205
    def execute_search
      # 第一次用原本的 search 來取 scroll id, 第二次以後 scroll id 跑 scroll api
      if @scroll_id.present?
        Searchkick.client.scroll(body: { scroll_id: @scroll_id }, scroll: @scroll)
      else
        Searchkick.client.search(params)
      end
    end
  end
end

#search(&block) ⇒ Object

開始遍歷搜尋



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# File 'lib/super_search/scroll.rb', line 68

def search(&block)
while r = query.execute and not r.response['hits']['hits'].empty? do
    block.call(r.results, r.total_count) if block
  end
end