Initiation à Ruby on Rails
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The document provides an introduction to Ruby on Rails, covering its background, features, and basic usage to create a web application called 'mynotes'. It includes practical examples of generating CRUD operations, database migrations, and setting up controllers and views. Additionally, it mentions various resources and communities related to Ruby on Rails development.
![puts "Hello world"
Ruby
"ruby is cool".length # 12
-42.abs # 42
"Nice Day Isn't It?".downcase.split
# ["nice", "day", "isn't", "it?"]](https://image.slidesharecdn.com/int202initiationrubyonrails-130422064152-phpapp01/85/Initiation-a-Ruby-on-Rails-9-320.jpg)
![Contrôleur
class NotesController < ApplicationController
def show
@note = Note.find(params[:id])
end
end
app/controllers/notes_controller.rb
app/views/notes/show.html.erb
Request
GET /notes/1
<p>
<b>Title:</b>
<%= @note.title %>
</p>](https://image.slidesharecdn.com/int202initiationrubyonrails-130422064152-phpapp01/85/Initiation-a-Ruby-on-Rails-44-320.jpg)
Initiation à Ruby on Rails
- 1. Initiation à Ruby on Rails Ruby on Rails @humancoders
- 3. Matthieu Segret Formateur Ruby on Rails Cofondateur de Human Coders
- 4. Formation
- 6. • Langage interprété / orienté objet • Libre - Licence Ruby et GPL • Version 1.9.3 (bientôt 2.0) • Apparu en 1995 Ruby
- 9. puts "Hello world" Ruby "ruby is cool".length # 12 -42.abs # 42 "Nice Day Isn't It?".downcase.split # ["nice", "day", "isn't", "it?"]
- 10. class Book def initialize(name) @name = name end def name @name end end Ruby book = Book.new("Programming Ruby") book.name # "Programming Ruby"
- 13. Un framework : Ruby on Rails
- 14. • Framework web écrit en Ruby • Libre - MIT • Version 3.2 (bientôt 4.0) • Apparu en 2004 Ruby on Rails
- 17. Projet : MyNotes
- 18. Projet : MyNotes $ rails new MyNotes • Créer un nouveau projet $ cd MyNotes $ rails server• Démarrer le serveur
- 22. CRUD
- 24. Ressource : notes notes id integer title varchar content text
- 25. $ rails generate scaffold note title content:text invoke active_recordcreate db/migrate/20130130171611_create_notes.rbcreate app/models/note.rbinvoke test_unitcreate test/unit/note_test.rbcreate test/fixtures/notes.ymlinvoke resource_routeroute resources :notesinvoke scaffold_controllercreate app/controllers/notes_controller.rbinvoke erbcreate app/views/notescreate app/views/notes/index.html.erbcreate app/views/notes/edit.html.erbcreate app/views/notes/show.html.erbcreate app/views/notes/new.html.erb create app/views/notes/_form.html.erb... Génération du CRUD
- 26. Migration
- 27. migration 1 migration 2 migration 3 migration 4 devise_create_users acts_as_follower create_notes add_profile_to_user s 20110720095338_ 20110718190746_ 20110715205012_ 20110605152153_ rake db:migrate rake db:rollback current .rb Migration
- 28. Migration class CreateNotes < ActiveRecord::Migration def change create_table :notes do |t| t.string :title t.text :content t.timestamps end end end db/migrate/20130130175117_create_notes.rb $ rake db:migrate
- 29. Base de données notes id integer title varchar content text
- 31. Modèle
- 33. Modèle class Note < ActiveRecord::Base end app/models/note.rb
- 34. Modèle : création Note.create(content: "I created Ruby", title: "Matz")
- 35. Modèle : mise à jour note = Note.find(1) note.content = "I love Ruby" note.save
- 36. Modèle : lecture Note.where(:title => "Matz").order("title ASC").limit(5)
- 38. Vue
- 40. ERB <p> <b>Title:</b> <%= @note.title %> </p> <p> <b>Content:</b> <%= @note.content %> </p> app/views/notes/show.html.erb
- 41. Formulaires <%= form_for(@note) do |f| %> <%= f.label :title %> <%= f.text_field :title %> <%= f.label :content %> <%= f.text_area :content %> <%= f.submit %> <% end %>
- 42. Contrôleur
- 44. Contrôleur class NotesController < ApplicationController def show @note = Note.find(params[:id]) end end app/controllers/notes_controller.rb app/views/notes/show.html.erb Request GET /notes/1 <p> <b>Title:</b> <%= @note.title %> </p>
- 45. Déploiement
- 47. Les gems
- 48. Indexation Twitter NoSQL Paiement en ligne Géolocalisation Parsing Pagination Cache Tâches de fonds Upload de fichiers Facebook Authentification Localisation OAuth A/B teste LDAP
- 51. Aller plus loin
- 53. Programming Ruby 1.9 (3rd edition) Agile Web Development with Rails (4th edition)
- 55. Formation