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Rails session store class implemented for MongoMapper and Mongoid or any other MongoDB ODM

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MongoSessionStore

Description

MongoSessionStore is a collection of Rails-compatible session stores for MongoMapper and Mongoid, but also included is a generic Mongo store that works with any (or no!) Mongo ODM.

Usage

MongoSessionStore is compatible with Rails 3.0, 3.1, and 3.2.

In your Gemfile:

gem "mongo_mapper" # or "Mongoid," or another Mongo ODM, or nothing
gem "mongo_session_store-rails3"

In the session_store initializer (config/initializers/session_store.rb):

# MongoMapper
MyApp::Application.config.session_store :mongo_mapper_store

# Mongoid
MyApp::Application.config.session_store :mongoid_store

# anything else
MyApp::Application.config.session_store :mongo_store
MongoStore::Session.database = Mongo::Connection.new.db('my_app_development')

Note: If you choose to use :mongo_store you only need to set its database if you aren't using MongoMapper or Mongoid in your project.

By default, the sessions will be stored in the "sessions" collection in MongoDB. If you want to use a different collection, you can set that in the initializer:

MongoSessionStore.collection_name = "client_sessions"

And if for some reason you want to query your sessions:

# MongoMapper
MongoMapperStore::Session.where(:updated_at.gt => 2.days.ago)

# Mongoid
MongoidStore::Session.where(:updated_at.gt => 2.days.ago)

# Plain old Mongo
MongoStore::Session.where('updated_at' => { '$gt' => 2.days.ago })

Performance

The following is the benchmark run with bson_ext installed. Without bson_ext, speeds are about 10x slower. The benchmark saves 2000 sessions (~12kb each) and then finds/reloads each one.

$ ruby perf/benchmark.rb
MongoMapperStore...
3.65ms per session save
2.25ms per session load
           Total Size: 23648924
         Object count: 2000
  Average object size: 11824.462
          Index sizes: {"_id_"=>172032}
MongoidStore...
2.59ms per session save
1.33ms per session load
           Total Size: 23648924
         Object count: 2000
  Average object size: 11824.462
          Index sizes: {"_id_"=>172032}
MongoStore...
1.42ms per session save
1.11ms per session load
           Total Size: 23648924
         Object count: 2000
  Average object size: 11824.462
          Index sizes: {"_id_"=>204800}

Development

To run all the tests:

rake

To switch to the Gemfile.lock for a certain Rails version:

rake use_rails_30
rake use_rails_31
rake use_rails_32

To run the tests for a specific store:

MONGO_SESSION_STORE_ORM=mongo_mapper bundle exec rspec spec
MONGO_SESSION_STORE_ORM=mongoid bundle exec rspec spec
MONGO_SESSION_STORE_ORM=mongo bundle exec rspec spec    

Previous contributors

MongoSessionStore started as a fork of the DataMapper session store, modified to work with MongoMapper and Mongoid. Much thanks to all the previous contributors:

  • Nicolas Mérouze
  • Chris Brickley
  • Tony Pitale
  • Nicola Racco
  • Matt Powell
  • Ryan Fitzgerald

License

Copyright (c) 2011-2012 Brian Hempel Copyright (c) 2010 Nicolas Mérouze Copyright (c) 2009 Chris Brickley Copyright (c) 2009 Tony Pitale

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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Rails session store class implemented for MongoMapper and Mongoid or any other MongoDB ODM

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