File: geo_distance.rb

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# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you under
# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

module Elasticsearch
  module DSL
    module Search
      module Aggregations

        # A multi-bucket aggregation which will return document counts for distance perimeters,
        # defined as ranges
        #
        # @example
        #
        #     search do
        #       aggregation :venue_distances do
        #         geo_distance do
        #           field  :location
        #           origin '38.9126352,1.4350621'
        #           unit   'km'
        #           ranges [ { to: 1 }, { from: 1, to: 5 }, { from: 5, to: 10 }, { from: 10 } ]
        #         end
        #       end
        #     end
        #
        # See the integration test for a full example.
        #
        # @see http://elasticsearch.org/guide/en/elasticsearch/guide/current/geo-distance-agg.html
        #
        class GeoDistance
          include BaseAggregationComponent

          option_method :field
          option_method :origin
          option_method :ranges
          option_method :unit
          option_method :distance_type
        end

      end
    end
  end
end