57 lines
1.5 KiB
Ruby
57 lines
1.5 KiB
Ruby
# --
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# Copyright (C) 2008-2009 10gen Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ++
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module Mongo
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# WARNING: This class is part of a new, experimental GridFS API. Subject to change.
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class Grid
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DEFAULT_BUCKET_NAME = 'fs'
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def initialize(db, bucket_name=DEFAULT_BUCKET_NAME)
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check_params(db)
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@db = db
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@files = @db["#{bucket_name}.files"]
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@chunks = @db["#{bucket_name}.chunks"]
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@chunks.create_index([['files_id', Mongo::ASCENDING], ['n', Mongo::ASCENDING]])
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end
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def put(data, filename, opts={})
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file = GridIO.new(@files, @chunks, filename, 'w', false, opts=opts)
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file.write(data)
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file.close
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file.files_id
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end
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def get(id)
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GridIO.new(@files, @chunks, nil, 'r', false, :_id => id)
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end
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def delete(id)
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@files.remove({"_id" => id})
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@chunks.remove({"_id" => id})
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end
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private
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def check_params(db)
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if !db.is_a?(Mongo::DB)
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raise MongoArgumentError, "db must be an instance of Mongo::DB."
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end
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end
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end
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end
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