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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 documents which are similar to the specified text or documents
#
# @example Find documents similar to the provided text
#
# search do
# query do
# more_like_this do
# like ['Eyjafjallajökull']
# fields [:title, :abstract, :content]
# end
# end
# end
#
#
# @example Find documents similar to the specified documents
#
# search do
# query do
# more_like_this do
# like [{_id: 1}, {_id: 2}, {_id: 3}]
# fields [:title, :abstract]
# end
# end
# end
#
# @see http://elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-mlt-query.html
#
class MoreLikeThis
include BaseComponent
# like/unlike is since 2.0.0
option_method :like
option_method :unlike
# before 2.0.0 the following 3 options were available
option_method :like_text
option_method :docs
option_method :ids
option_method :fields
option_method :min_term_freq
option_method :max_query_terms
option_method :include
option_method :exclude
option_method :percent_terms_to_match
option_method :stop_words
option_method :min_doc_freq
option_method :max_doc_freq
option_method :min_word_length
option_method :max_word_length
option_method :boost_terms
option_method :boost
option_method :analyzer
end
end
end
end
end
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