Sinatra is a micro web framework for Ruby. It uses Rack, supports RESTful routing, and allows defining URL patterns. Haml can be used as a templating language with Sinatra to generate HTML. Sass can also be used for CSS preprocessing. The presentation provided examples of defining routes and rendering templates in Sinatra using ERB and Haml.

1. SINATRA + HAML + TWITTER
Elber Ribeiro @dynaum
BBTI TechTalk #2
17/09/2010

2. SINATRA
Micro Web Framework

3. SINATRA
•RACK
•REST
•URL

4. EXEMPLO
require 'rubygems'
require 'sinatra'
get '/hi' do
"Hello World!"
end

5. EXEMPLO
$ gem install sinatra
$ ruby hello.rb
>> Listen on 0.0.0.0:4567

6. EXEMPLO
require 'rubygems'
require 'sinatra'
get '/hi' do
"Hello World!"
end

7. EXEMPLO
require 'rubygems'
require 'sinatra'
get '/hi' do
"Hello World!"
end

8. EXEMPLO
require 'rubygems'
require 'sinatra'
get '/hi' do
"Hello World!"
end

9. EXEMPLO
require 'rubygems'
require 'sinatra'
get '/hi' do
erb :index
end

10. EXEMPLO
require 'rubygems'
require 'sinatra'
require 'haml'
get '/hi' do
haml :index
end

11. URL PADRONIZADA
require 'rubygems'
require 'sinatra'
require 'haml'
post '/posts' do
post = Post.create! params
redirect “/posts/#{post.id}”
end
get '/posts/:id' do
@post = Post.find(params[:id])
haml :post
end

12. MAIS
• Template ( erb, haml, builder )
• Testes ( rspec, test::unit )
• Before filters
• Helpers
• Error handlers
• Inline templates
• HTTP Caching ( etag, last-modified )
• Rack

14. NICEDOG

15. NICEDOG
require 'NiceDog.php';
R('/posts')->controller('post')->action('index')->on('GET');
class Post extends C{
public function index(){
echo 'Hello';
}
}
run();

16. NICEDOG + LASA = LASA_API
• Conexão entra apps ruby com o sap (RFC)
• Login AD (apenas teste ainda)

18. ERB
<div id="profile">
<div class="left column">
<div id="date"><%= print_date %></div>
<div id="address"><%= current_user.address %></div>
</div>
<div class="right column">
<div id="email"><%= current_user.email %></div>
<div id="bio"><%= current_user.bio %></div>
</div>
</div>

19. HAML
#profile
.left.column
#date= print_date
#address= current_user.address
.right.column
#email= current_user.email
#bio= current_user.bio

20. TUTORIAL
ERB
<strong><%= item.title %></strong>
Haml
%strong= item.title

21. TUTORIAL
HTML
<strong class="code" id="msg">Hello!</strong>
Haml
%strong{:class => "code", :id => "msg"} Hello!

22. TUTORIAL
Haml
.content Hello, World!
HTML
<div class='content'>Hello, World!</div>

24. CSS
table.hl {
margin: 2em 0;
}
table.hl td.ln {
text-align: right;
}
li {
font-family: serif;
font-weight: bold;
font-size: 1.2em;
}

25. SASS
table.hl
margin: 2em 0
td.ln
text-align: right
li
font:
family: serif
weight: bold
size: 1.2em

32. EM BREVE

33. É ISSO!
Elber Ribeiro
dynaum.com
@dynaum