rails

# environment.rb
  config.gem 'mongo_mapper'

#initializers/mongo.rb
 
begin YAML.load_file("#{RAILS_ROOT}/config/mongo_config.yml")
  MONGOCONNECTION = YAML.load_file("#{RAILS_ROOT}/config/mongo_config.yml")[RAILS_ENV]
rescue => e
  puts "WARNING! loading config file mongo_config.yml , #{e}"
end
MongoMapper.connection = Mongo::Connection.new(MONGOCONNECTION['ip'])
MongoMapper.database = MONGOCONNECTION['db']
 
#config/mongo_config.yml
 
development:
  ip: 127.0.0.106
  db: mongo_dev
test:
  ip: localhost
  db: mongo_test