Contents

module Workarea
  decorate Metrics::SearchByWeek, with: 'search_autocomplete' do
    decorated do
      index(
        { query_string: 1, total_results: 1, searches: 1 },
        { partial_filter_expression: { total_results: { '$gt' => 0 } } }
      )

      scope :by_query_string, ->(string) { where(query_string: /^#{string}/) }
    end

    class_methods do
      def autocomplete(query_string, max: 3)
        pipeline = [
          {
            '$match' => {
              total_results: { '$gt' => 0 },
              query_string: { '$regex' => /^#{query_string}/ }
            }
          },
          { '$project' => { 'query_id' => 1, 'searches' => 1, 'query_string' => 1 } },
          {
            '$group' => {
              '_id' => '$query_id',
              'searches' => { '$sum' => '$searches' },
              'query_string' => { '$first' => '$query_string' }
            }
          },
          { '$sort' => { 'searches' => -1 } },
          { '$limit' => max }
        ]

        collection.aggregate(pipeline).map { |r| r['query_string'] }
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
workarea-search_autocomplete-1.0.2	app/models/workarea/metrics/search_by_week.decorator
workarea-search_autocomplete-1.0.1	app/models/workarea/metrics/search_by_week.decorator
workarea-search_autocomplete-1.0.0	app/models/workarea/metrics/search_by_week.decorator