Rails with mongodb

Rails with MongoDB Kosuke Matsuda

• MongoDB• Mac MongoDB• Ruby MongoDB• Rails MongoDB

MongoDBMongoDB C++ http://ja.wikipedia.org/wiki/MongoDB

MongoDB••••• http://www.mongodb.org/display/DOCSJP/Home

• RDB• RDB• RDB

Mac MongoDB• http://www.mongodb.org/display/DOCS/Downloads• MacPorts $ sudo port install mongodb

MongoDB$ sudo mkdir -p /opt/local/var/db/mongodb$ sudo mkdir -p /opt/local/var/log/$ sudo touch /opt/local/var/log/mongodb.log$ /opt/local/bin/mongod --dbpath /opt/local/$ var/db/mongodb --logpath /opt/local/var/log/mongodb.log# /data/db/# Mac http://github.com/AndreiRailean/MongoDB-OSX-Launchctl

Ruby MongoDB• mongo-ruby-driver • Ofﬁcial Ruby driver for MongoDB • http://github.com/mongodb/mongo-ruby-driver

Set up$ sudo gem install mongo# mongo gem BSON gem$ sudo gem install bson# C$ sudo gem install bson_ext

Tutorialrequire "rubygems"require "mongo"db = Mongo::Connection.new.db(test)coll = db.collection("sample")doc = { name => MongoDB, type => database, info => { language => ruby, driver => ruby_driver }}coll.insert(doc)mydoc = coll.ﬁnd_one()puts mydoc.inspect# {"_id"=>BSON::ObjectID(4c2733f4a27a137051000001), "name"=>"MongoDB","info"=>{"language"=>"ruby", "driver"=>"ruby_driver"}, "type"=>"database"}

Rails MongDB• O/R Mapper • MongoMapper • http://mongomapper.com/ • Mongoid • http://mongoid.org/

MongoDB• ActiveRecord• Rails Model• SQL-like• http://blog.madoro.org/mn/54

Set up• Configuration for Database $ cat config/initializers/database.rb MongoMapper.database = "mongo_sample-#{Rails.env}" if defined?(PhusionPassenger) PhusionPassenger.on_event(:starting_worker_process) do |forked| MongoMapper.connection.connect_to_master if forked end end $ echo "# Using MongoDB" > config/database.yml

Set up• Environment # config/environment.rb config.frameworks -= [ :active_record ] config.gem "mongo_mapper"

• $ script/generate model ‘ModelName’

•• Rails Rails3• MongoDB NoSQL• RDB Rails

any questions?

Rails with mongodb

by Kosuke Matsuda on Feb 19, 2011

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Rails with mongodb — Presentation Transcript