Mongoid

simple et rapide présentation de Mongoid

Transcript

1. Mongoid Mongoid Cyril Mougel 17 Janvier 2013
2. Mongoid Mongoid c’est ? 1 Mongoid c’est ? 2 Mais MongoDB ? 3 Mongoid c’est aussi ?
3. Mongoid Mongoid c’est ? Qu’est ce que Mongoid ? Un ODM Object Document Model ´ Ecrit en Ruby API comme ActiveRecord
4. Mongoid Mongoid c’est ? Exemple simple class User include Mongoid :: Document end
5. Mongoid Mongoid c’est ? R´ esultat > user = User.new => #<User _id: 50 f07c2444fd9947a7000001 , _type: nil >
6. Mongoid Mongoid c’est ? D´ efinition des champs
7. Mongoid Mongoid c’est ? class User include Mongoid :: Document field :first_name field :last_name end
8. Mongoid Mongoid c’est ? > user = User.new(: first_name => 123, :last_name => "Mougel") => #<User _id: 50 f07c4c44fd9947a7000003 , _type: nil , first_name: 123, last_name: "Mougel"> > user.first_name => 123 > user.last_name => "Mougel"
9. Mongoid Mongoid c’est ? Gestion de la Coercion
10. Mongoid Mongoid c’est ? class User include Mongoid :: Document field :first_name , :type => String field :last_name , :type => String end
11. Mongoid Mongoid c’est ? > user = User.new(: first_name => 123, :last_name => true) => #<User _id: 50 f07c4c44fd9947a7000003 , _type: nil , first_name: "123" , last_name: "true"> > user.first_name => "123" > user.last_name => "true"
12. Mongoid Mongoid c’est ? Gestion d’un valeur par d´ efaut
13. Mongoid Mongoid c’est ? class User include Mongoid :: Document field :first_name , :type => String field :last_name , :type => String field :location , :type => String , :default => "Nantes" end
14. Mongoid Mongoid c’est ? > user = User.new => #<User _id: 50 f07cbc44fd9947a7000004 , _type: nil , first_name: nil , last_name: nil , location: "Nantes"> > user.first_name => nil > user.location => "Nantes"
15. Mongoid Mongoid c’est ? Multiple Type de base
16. Mongoid Mongoid c’est ? BigDecimal Boolean Integer String Symbol Float Date DateTime Time Array Hash
17. Mongoid Mais MongoDB ? 1 Mongoid c’est ? 2 Mais MongoDB ? 3 Mongoid c’est aussi ?
18. Mongoid Mais MongoDB ? Base NoSQL NoSQL == Not Only SQL
19. Mongoid Mais MongoDB ? Base de donn´ ee orient´ e document stockage sous format BSON BSON == Binary JSON
20. Mongoid Mais MongoDB ? Base de donn´ ee orient´ e document Cr´ eation automatique du sch´ ema Pas d’obligation d’homog´ en´ eit´ e des documents
21. Mongoid Mais MongoDB ? Pas de jointure
22. Mongoid Mais MongoDB ? Query Op´ erator $in $nin $or $gt $lt etc..
23. Mongoid Mongoid c’est aussi ? 1 Mongoid c’est ? 2 Mais MongoDB ? 3 Mongoid c’est aussi ?
24. Mongoid Mongoid c’est aussi ? Include ActiveModel Gestion des erreurs Gestion des callbacks
25. Mongoid Mongoid c’est aussi ? Gestion des associations
26. Mongoid Mongoid c’est aussi ? Association entre collection has many :orders belongs to :user
27. Mongoid Mongoid c’est aussi ? class User include Mongoid :: Document has_many :posts end class Post include Mongoid :: Document belongs_to :user end
28. Mongoid Mongoid c’est aussi ? > user = User.new > user.posts = [ Post.new ] > user.save > user => #<User _id: 50 f07c2444fd9947a7000001 , _type: nil > > user.posts => [#<Post _id: 50 f07c2444fd9947a7000002 , _type: nil >]
29. Mongoid Mongoid c’est aussi ? Association des documents embarqu´ es embeds many :comments embedded in :post
30. Mongoid Mongoid c’est aussi ? class Post include Mongoid :: Document embeds_many :comments end class Comment include Mongoid :: Document embedded_in :post end
31. Mongoid Mongoid c’est aussi ? > user = User.new > user.comments = [ Comment.new ] > user.save > user => #<User _id: 50 f07c2444fd9947a7000001 , _type: nil > { ’_id’: 50 f07c2444fd9947a7000001 , ’comments ’: [{ ’_id’: 50 f07c2444fd9947a7000002 }] }
32. Mongoid Mongoid c’est aussi ? Criteria Model.where Model.all in Model.any in Model.any of Model.asc Model.desc Model.limit Model.only
33. Mongoid Mongoid c’est aussi ? Les criterias sont chainable
34. Mongoid Mongoid c’est aussi ? Les criterias sont ´ evalu´ es de mani` ere lazy
35. Mongoid Mongoid c’est aussi ? Finder Model.all Model.first Model.last Model.exists ? Model.find
36. Mongoid Mongoid c’est aussi ? Moped MongoDB driver d´ evelopp´ e par la communaut´ e Mongoid Gestion plus threadsafe par session
37. Mongoid Mongoid c’est aussi ? Plus d’information ? RTFM http ://mongoid.org