mongodb.rb

# http://www.mongodb.org/display/DOCS/Rails+3+-+Getting+Started

db_config = YAML::load(File.read(File.join(Rails.root, "/config/database.yml")))

mongo = db_config[Rails.env]
MongoMapper.connection = Mongo::Connection.new(
  mongo['hostname'] || 'localhost',
  mongo['port'] || 27017
)

MongoMapper.database = mongo['database']

if defined?(PhusionPassenger)
   PhusionPassenger.on_event(:starting_worker_process) do |forked|
     MongoMapper.connection.connect_to_master if forked
   end
end