mongo-ruby-driver/lib/mongo/message/update_message.rb

# --
# Copyright (C) 2008-2009 10gen 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.
# ++

require 'mongo/message/message'
require 'mongo/message/opcodes'

module XGen
  module Mongo
    module Driver

      class UpdateMessage < Message

        def initialize(db_name, collection_name, sel, obj, repsert)
          super(OP_UPDATE)
          write_int(0)
          write_string("#{db_name}.#{collection_name}")
          write_int(repsert ? 1 : 0) # 1 if a repsert operation (upsert)
          write_doc(sel)
          write_doc(obj)
        end
      end
    end
  end
end