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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 Queries
# A query which returns the root documents for nested documents matching the specified query
#
# @example Return articles where John has commented
#
# search do
# query do
# nested do
# path 'comments'
# query do
# match user: 'John'
# end
# end
# end
# end
#
# @see http://elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-nested-query.html
#
class Nested
include BaseComponent
option_method :path
option_method :score_mode
option_method :inner_hits
# DSL method for building the `query` part of the query definition
#
# @return [self]
#
def query(*args, &block)
@query = block ? @query = Query.new(*args, &block) : args.first
self
end
# Converts the query definition to a Hash
#
# @return [Hash]
#
def to_hash
hash = super
if @query
_query = @query.respond_to?(:to_hash) ? @query.to_hash : @query
hash[self.name].update(query: _query)
end
hash
end
end
end
end
end
end
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