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# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2014-2020 MongoDB Inc.
#
# Licensed 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 Mongo
module Operation
class Update
# Defines custom behavior of results for an udpate when sent as part of a bulk write.
#
# @since 2.0.0
class BulkResult < Operation::Result
include Aggregatable
# The number of modified docs field in the result.
#
# @since 2.0.0
MODIFIED = 'nModified'.freeze
# The upserted docs field in the result.
#
# @since 2.0.0
UPSERTED = 'upserted'.freeze
# Gets the number of documents upserted.
#
# @example Get the upserted count.
# result.n_upserted
#
# @return [ Integer ] The number of documents upserted.
#
# @since 2.0.0
def n_upserted
return 0 unless acknowledged?
@replies.reduce(0) do |n, reply|
if upsert?(reply)
n += reply.documents.first[UPSERTED].size
else
n
end
end
end
# Gets the number of documents matched.
#
# @example Get the matched count.
# result.n_matched
#
# @return [ Integer ] The number of documents matched.
#
# @since 2.0.0
def n_matched
return 0 unless acknowledged?
@replies.reduce(0) do |n, reply|
if upsert?(reply)
reply.documents.first[N] - n_upserted
else
if reply.documents.first[N]
n += reply.documents.first[N]
else
n
end
end
end
end
# Gets the number of documents modified.
# Not that in a mixed sharded cluster a call to
# update could return nModified (>= 2.6) or not (<= 2.4).
# If any call does not return nModified we can't report
# a valid final count so set the field to nil.
#
# @example Get the modified count.
# result.n_modified
#
# @return [ Integer ] The number of documents modified.
#
# @since 2.0.0
def n_modified
return 0 unless acknowledged?
@replies.reduce(0) do |n, reply|
if n && reply.documents.first[MODIFIED]
n += reply.documents.first[MODIFIED]
else
0
end
end
end
# Get the upserted documents.
#
# @example Get upserted documents.
# result.upserted
#
# @return [ Array<BSON::Document> ] The upserted document info
#
# @since 2.1.0
def upserted
return [] unless acknowledged?
@replies.reduce([]) do |ids, reply|
if upserted_ids = reply.documents.first[UPSERTED]
ids += upserted_ids
end
ids
end
end
private
def upsert?(reply)
upserted.any?
end
end
end
end
end
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