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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.
require 'test_helper'
module Elasticsearch
module Test
class ChildrenAggregationIntegrationTest < ::Elasticsearch::Test::IntegrationTestCase
include Elasticsearch::DSL::Search
context "A children aggregation" do
startup do
Elasticsearch::Extensions::Test::Cluster.start(number_of_nodes: 1) if ENV['SERVER'] and not Elasticsearch::Extensions::Test::Cluster.running?(number_of_nodes: 1)
end
setup do
@client.indices.create index: 'articles-and-comments', body: {
mappings: {
properties: {
title: {type: 'text'},
category: {type: 'keyword'},
join_field: {type: 'join', relations: {article: 'comment'}},
author: {type: 'keyword'}
}
}
}
@client.index index: 'articles-and-comments', id: 1,
body: { title: 'A', category: 'one', join_field: 'article' }
@client.index index: 'articles-and-comments', id: 2,
body: { title: 'B', category: 'one', join_field: 'article' }
@client.index index: 'articles-and-comments', id: 3,
body: { title: 'C', category: 'two', join_field: 'article' }
@client.index index: 'articles-and-comments', routing: '1',
body: { author: 'John', join_field: { name: 'comment', parent: 1 } }
@client.index index: 'articles-and-comments', routing: '1',
body: { author: 'Mary', join_field: { name: 'comment', parent: 1 } }
@client.index index: 'articles-and-comments', routing: '2',
body: { author: 'John', join_field: { name: 'comment', parent: 2 } }
@client.index index: 'articles-and-comments', routing: '2',
body: { author: 'Dave', join_field: { name: 'comment', parent: 2 } }
@client.index index: 'articles-and-comments', routing: '3',
body: { author: 'Ruth', join_field: { name: 'comment', parent: 3 } }
@client.indices.refresh index: 'articles-and-comments'
end
should "return the top commenters per article category" do
response = @client.search index: 'articles-and-comments', size: 0, body: search {
aggregation :top_categories do
terms field: 'category' do
aggregation :comments do
children type: 'comment' do
aggregation :top_authors do
terms field: 'author'
end
end
end
end
end
}.to_hash
assert_equal 'one', response['aggregations']['top_categories']['buckets'][0]['key']
assert_equal 3, response['aggregations']['top_categories']['buckets'][0]['comments']['top_authors']['buckets'].size
assert_equal 'John', response['aggregations']['top_categories']['buckets'][0]['comments']['top_authors']['buckets'][0]['key']
end
end
end
end
end
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