This document contains information about Almir Mendes, including his contact information and links to his website and Flickr photos. It also provides an overview of Ruby on Rails, describing it as a web framework that favors programmer happiness and productivity through conventions over configurations. Finally, it gives a basic example of how to generate a sample Rails application with a User model and controller to manage users.

1. Almir 'm3nd3s'
http://www.almirmendes.com
m3nd3s@gmail.com
http://www.flickr.com/photos/bellalago/4874839499/ http://www.flickr.com/photos/tswicegood/3483353187

2. It's me

3. http://www.flickr.com/photos/chealion/2349587639

4. http://www.flickr.com/photos/rdohms/4103026062

5. http://www.flickr.com/photos/hlegius/3544338710

6. Oi!

8. Por que mudar?

9. Agilidade
http://www.flickr.com/photos/eriwst/3448608210

10. 10.times { |i| puts i }

12. 10.class
=> Fixnum

13. Dojo

14. http://reddevnews.com/articles/2007/11/01/testdriven-development-tdd.aspx

15. Continuous Integration

16. Ufa! Me
Time
livrei dessa Você quebrou
o build?

17. Gambiarras
http://www.flickr.com/photos/ricardo_ferreira/233163380/

18. <?php
echo “2Patos” +
“1Galinha” +
“2Codornas” == “5 Pássaros?”
// Acredite! Isto resulta em 1 (inteiro)
?>

19. Mercado

20. Então, o que é o tal
Ruby on Rails?

21. http://www.flickr.com/photos/benmillett/306074038
A web framework that's optimized for
programmer happiness and sustainable
productivity.

22. http://www.flickr.com/photos/arcticpuppy/4784727073
It lets you write beautiful code by
favoring convention over configuration.

23. http://www.codinguide.com/2010/04/mvc-pattern.html
MVC

24. Exemplo
Imagine que eu precise gerenciar
usuários, estes teriam apenas nome e
e-mail.

25. Instala a gem rails
$ gem install rails
$ rails new meu_projeto
Cria um novo projeto

26. $ cd meu_projeto
$ rails g model usuario nome:string
email:string

27. class CreateUsuarios < ActiveRecord::Migration
def self.up
create_table :usuarios do |t|
t.string nome
t.string email
t.timestamps
end
dnd
def self.down
drop_table :usuarios
end
end
Migration

28. $ rake db:migrate
Migration

29. Model
class Usuario < ActiveRecord::Base
end
app/models/usuario.rb

31. Model
u.save?() Usuario.all
u.update_attributes() Usuario.last(5)
u.destroy() Usuario.find(12)
u.valid?() Usuario.new
u.errors Usuario.query
u.new_record? Usuario.first()
u.meu_atributo_x
E muito mais...

32. Controller
class UsuariosController < ApplicationController
def index
@usuarios = Usuario.all
end
end
app/controllers/usuarios_controller.rb

33. View
<ul>
<% @usuarios.each do |u| %>
<%= u.nome %>
<% end %>
</ul>
Action
app/views/usuarios/index.html.rb

34. Gems
http://rubygems.org/
http://rubygems.org/

35. Por onde começar?

36. http://railsforzombies.org/
http://railsforzombies.org/

37. http://rubyonrails.org/screencasts/rails3
http://rubyonrails.org/screencasts/rails3

38. http://railscasts.com/
http://railscasts.com/

39. http://guides.rubyonrails.org/
http://guides.rubyonrails.org/

41. RailsRumble

42. www.rockandrails.com.br
Realização

43. Almir 'm3nd3s'
@m3nd3s
http://www.almirmendes.com
almir.mendes@giran.com.br