bastos / onde-esta-meu-metodo
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Description: Slides e scripts da palestra que fiz na Ceará On Rails
Homepage: http://tiago.zusee.com
Clone URL: git://github.com/bastos/onde-esta-meu-metodo.git 
formatado rdoc
bastos (author)
Sat Nov 15 00:16:45 -0800 2008
commit  8d48c88d4a6f7f8fa7c652f3e243e2c597bb82c4
tree    e34b534b44e0730fa026781c2c7919ea9b1c74e0
parent  bf2d3a7145d1b20de3879856eca4f1135797ec59
onde-esta-meu-metodo / ceara_on_rails.rb
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16bd2102 » bastos 2008-11-14 Initial commit 1 # -*- coding: utf-8 -*-
2 presentation :title => "Ruby - Onde está meu método? - Ceará on Rails" do
3 slide do
4 center do
5 h1 "Onde está meu método?" , :style=>"margin-top:25%"
6 h3 "Ruby, Mágica, Metaprogramação e diversão!"
7 end
8 end
9
10 slide do
11 h1 "Quem sou eu?"
12 h2 "Tiago Bastos"
13 h3 "%w{Estudante Desenvolvedor Python PHP Ruby *}.each {|a| puts a}"
14 end
15
16 slide do
17 center {
18 h1 "As coisas não precisam ser complicadas!"
19 img :src => "assets/frustration.png", :alt=> "http://xkcd.com/457/"
20 }
21 end
22
23 slide do
24 h1 "Operadores são syntax sugar"
25 code :type=>:ruby, :code => 'class Foo
26 def initialize
27 @fools = []
28 end
29
30 def << a
31 @fools << a
32 end
33
34 def * i
35 i.times { puts show_me_the_foo }
36 end
37
38 def show_me_the_foo
39 @fools.each {|foo| puts foo}
40 end
41 end'
42 end
43
44 slide do
45 h1 "Exemplo"
46 code :type => :ruby, :code => 'foo_box = Foo.new
47 foo_box << "LOL"
48 foo_box << "OMG"
49 foo_box.show_me_the_foo
50 foo_box * 10'
51 end
52
53 slide do
54 h1 "Monkey Patching"
55 h3 "Nada precisa ser tão difícil de se abrir, nem mesmo classes"
56 code :type=>:ruby, :code => 'class String
57 def lolize
58 "LOL #{self} LOL"
59 end
60 end
61
62 "Ruby!".lolize
63 '
64 end
65
66 slide do
67 h1 "Mixins"
68 h2 ""
69 code :type=>:ruby, :code => 'module Rubist;end
70 module Snaker;end
71 module Sysadmin;end
72 module JabbaTheHutt;end
73 class Programmer;end
74
75 class Me < Programmer
76 include Snaker
77 include Rubist
78 end
79 class You < Programmer
80 include Snaker
81 include Sysadmin
82 end
83 class UnHappy < Programmer
84 include JabbaTheHutt
85 end
86 '
87 end
88
89 slide do
90 h1 "Blocos!"
91 code :type=>:ruby, :code => 'LoLCat do
92 say "I haz Rubyz"
93 end'
94 end
95
96 slide do
97 h1 "Sinatra!"
98 code :type=>:ruby, :code => "require 'sinatra'
99
100 get '/about' do
101 \"Sinatra, um minimalista webframework usando blocos!\"
102 end
103 "
104 end
105
106 slide do
107 h1 "yield"
108 h3 "Blocos possuem o contexto de onde foram criadas"
109 code :type => :ruby, :code => 'class Cat
110 def initialize
111 yield
112 end
113 def say(str)
114 puts str
115 end
116 end'
117 p "undefined method `say' for main:Object (NoMethodError)"
118 end
119
120 slide do
121 h1 "eval is not evil"
122 h3 "Blocos + eval = DSL"
123 code :type=>:ruby, :code => 'class Cat
124 def initialize(&block)
125 instance_eval(&block)
126 end
127 def say(str)
128 puts str
129 end
130 end
131 '
132 end
133
134 slide do
135 h1 "Domain Specific Language"
136 h3 "Blocos + eval = DSL"
137 center { code :type=>:ruby, :code => 'Cat.new { say "Eval is not evil!" }' }
138 end
139
140 slide do
141 h1 "Estes slides foram feitos com uma DSL: Gary"
142 code :type=>:ruby, :code => 'presentation :title => "My First Presentation" do
143 slide do
144 h1 "Just a test"
145 code "def a; a+a;end"
146 end
147
148 slide do
149 h1 "Bye"
150 center { h3 "Bye people!" }
151 end
152 end
153 '
154 end
155
156 slide do
157 h1 "BOT"
158 code :type=>:ruby, :code => 'config do |c|
159 c.nick = "echo_bot"
160 c.server = "irc.freenode.net"
161 c.port = 6667
162 end
163
164 on :connect do
165 join "#Awesome_Channel"
166 end
167
168 on :channel, /.*/ do
169 msg channel, message
170 end'
171 end
172
173 slide do
174 h1 "Onde está meu método!?"
175 code :type=>:ruby, :code => 'class Cat
176 def method_missing(m, *args, &block)
177 if m.to_s =~/^gimme_(.+)_burgerz/
178 x = m.to_s.match(/^gimme_(.+)_burgerz/)[1]
179 puts "I Haz #{x.capitalize} burgerz"
180 else
181 super
182 end
183 end
184 end
185
186 Cat.new.gimme_ten_burgers
187 '
188 end
189
190 slide do
191 h1 "I Haz Ten burgerz", :style=>"margin-top:30%"
192 end
193
194 slide do
195 h1 "Lindo!", :style=>"margin-top:25%"
196 h1 "Mas e ai?", :style=>"margin-top:25%"
197 end
198
199 slide do
200 h1 "Ai que você entende o ActiveRecord!"
201 code :type=>:ruby, :code => "Dummy.find_by_name('Tiago')"
202 code :type=>:ruby, :code => "Dummy.find_by_name_and_age('Tiago', 22)"
203 end
204
205 slide do
206 h1 "Ei Classe quero o fale"
207 code :type=>:ruby, :code => "class DHH
208 def fale
209 puts 'FUCK YOU'
210 end
211 def exemplo
212 send(:fale)
213 end
214 end
215
216 DHH.new.exemplo
217 "
218 end
219
220 slide do
221 h1 "Podemos simplesmente criar um alias para o método antigo"
222 h2 "E redeclarar"
223 code :type => :ruby, :code => 'class DHH
224 alias_method :antigo, :exemplo
225 def exemplo
226 puts ":D"
227 end
228 end
229 # O novo
230 DHH.new.exemplo
231 # O antigo!
232 DHH.new.old
233 '
234
235 end
236
237 slide do
238 h1 "Ruby é divertido!"
239 ul do
240 li "Escreva DSL nele"
241 li "Funções anônimas"
242 li "Sintaxe Natural"
243 li "Rails, Merb, Sinatra, Markaby, Grit, Rake..."
244 end
245 end
246
247 slide do
248 center { img :src=>"assets/vodka.jpg" }
249 end
250
251 slide :style=>"background-image:url(assets/mafia.jpg);
252 background-repeat: no-repeat;
253 background-attachment:fixed;
254 background-position: top center
255 " do
256 h1 "Perguntas?"
257 end
258
259 slide do
260 h1 "Obrigado!"
261 div do
262 p "Links:"
263 ul do
264 li "Meus projetos OpenSource http://github.com/bastos"
265 li "Gary Presentation Builder http://github.com/bastos/gary"
266 li "Frustation by http://xkcd.com/457/"
267 li "Sinatra http://github.com/bmizerany/sinatra/tree/master"
268 li "Isaac http://github.com/ichverstehe/isaac"
269 end
270 end
271 end
272 end