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# Copyright (C) 2014-2017 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
module Commands
# A MongoDB listCollections command operation.
#
# @example Create the listCollections command operation.
# ListCollections.new(db_name: 'test')
#
# @note A command is actually a query on the virtual '$cmd' collection.
#
# Initialization:
# param [ Hash ] spec The specifications for the command.
#
# option spec :db_name [ String ] The name of the database whose list of
# collection names is requested.
# option spec :options [ Hash ] Options for the command.
#
# @since 2.0.0
class ListCollections < Command
private
def selector
(spec[SELECTOR] || {}).merge(
listCollections: 1, filter: { name: { '$not' => /system\.|\$/ }}
)
end
end
end
end
end
require 'mongo/operation/commands/list_collections/result'
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