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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
# Contains the classes for Elasticsearch queries
#
module Queries;end
# Wraps the `query` part of a search definition
#
# @see https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl.html
#
class Query
def initialize(*args, &block)
@block = block
end
# Looks up the corresponding class for a method being invoked, and initializes it
#
# @raise [NoMethodError] When the corresponding class cannot be found
#
def method_missing(name, *args, &block)
klass = Utils.__camelize(name)
if Queries.const_defined? klass
@value = Queries.const_get(klass).new *args, &block
else
raise NoMethodError, "undefined method '#{name}' for #{self}"
end
end
# Evaluates any block passed to the query
#
# @return [self]
#
def call
@block.arity < 1 ? self.instance_eval(&@block) : @block.call(self) if @block
self
end
# Converts the query definition to a Hash
#
# @return [Hash]
#
def to_hash(options={})
call
if @value
@value.to_hash
else
{}
end
end
end
end
end
end
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