Best Rails Book You've Never Read

A presentation on all the benefits you gain after reading Rebuilding Rails by Noah Gibbs.

Transcript

1. The best Rails book you’ve never read. DAMIR SVRTAN
2. 01 RUBY/RAILS BOOKS
3. WELL KNOWN BOOKS POODR Sandi Metz RoR Tutorial Michael Hartl Pickaxe David Thomas Metaprogramming Ruby Paolo Perrotta
4. and many more..
5. 02 REBUILDING RAILS
7. NOAH GIBBS
8. Get your hands dirty and build your own Ruby Web Framework - NOAH GIBBS
9. RAILS INTERNALS CAN TEACH YOU A LOT…
10. NOT JUST READING - ALSO LOTS OF CODING
11. BUILD YOUR OWN GEM bundler new my_framework
12. PUBLISH YOUR FIRST GEM push it to rubygems.org
13. LEARN HOW RACK WORKS what is Rack?
14. Browser App Server RACK Ruby App
15. ALMOST EVERY RUBY FRAMEWORK USES IT! Rails, Sinatra, Hanami, Roda..
16. # config.ru require 'rack' class MyApp def call(env) [200, { 'Content-Type' => 'text/html' }, ["Hello World"]] end end run MyApp.new
17. run object.call
18. run proc { |env| [200, { 'Content-Type' => 'text/html' }, [Time.now] }
19. # config.ru require 'rack' class MyApp def call(env) [200, { 'Content-Type' => 'text/html' }, ["Hello World"]] end end run MyApp.new
20. env argument
21. { "SERVER_SOFTWARE"=>"THIN 1.6.3 CODENAME PROTEIN POWDER", "SERVER_NAME"=>"LOCALHOST", "RACK.INPUT"=>#<STRINGIO:0X007FFD50C4A9C8>, "RACK.VERSION"=>[1, 0], "RACK.ERRORS"=>#<IO:<STDERR→, "RACK.MULTITHREAD"=>FALSE, "RACK.MULTIPROCESS"=>FALSE, "RACK.RUN_ONCE"=>FALSE, "REQUEST_METHOD"=>"GET", "REQUEST_PATH"=>"/", "PATH_INFO"=>"/", "REQUEST_URI"=>"/", "HTTP_VERSION"=>"HTTP/1.1", "HTTP_HOST"=>"LOCALHOST:3000", "HTTP_CONNECTION"=>"KEEP-ALIVE", "HTTP_CACHE_CONTROL"=>"MAX-AGE=0", "HTTP_UPGRADE_INSECURE_REQUESTS"=>"1", "HTTP_USER_AGENT"=>"MOZILLA/5.0 (MACINTOSH; INTEL MAC OS X 10_11_3) APPLEWEBKIT/537.36 (KH™L, LIKE GECKO) CHROME/51.0.2704.103 SAFARI/537.36", "HTTP_ACCEPT"=>"TEXT/H™L,APPLICATION/XH™L+XML,APPLICATION/XML;Q=0.9,IMAGE/WEBP,*/*;Q=0.8", "HTTP_ACCEPT_ENCODING"=>"GZIP, DEFLATE, SDCH", "HTTP_ACCEPT_LANGUAGE"=>"EN-US,EN;Q=0.8", "HTTP_COOKIE"=> "", "GATEWAY_INTERFACE"=>"CGI/1.2", "SERVER_PORT"=>"3000", "QUERY_STRING"=>"", "SERVER_PROTOCOL"=>"HTTP/1.1", "RACK.URL_SCHEME"=>"HTTP", "SCRIPT_NAME"=>"", "REMOTE_ADDR"=>"127.0.0.1" }
22. # config.ru require 'rack' class MyApp def call(env) [200, { 'Content-Type' => 'text/html' }, ["Hello World"]] end end run MyApp.new
23. [200, { 'Content-Type' => 'text/html' }, ["Hello World”]]
24. use Rack::Session::Cookie, :secret => 'abc123' use BetterErrors::Middleware if Noodles.env.development? use Rack::CommonLogger, $stdout use Rack::ContentType use Rack::MethodOverride use Rack::Static, urls: ["/css", "/images", "/js", "/favicon.ico"], root: "public" run Noodles.application
25. BUILD YOUR OWN ROUTER
26. Noodles.http_app.routes do root_to 'home#index' get 'chat', 'chat#index' get "auth/:provider/callback", 'session#success' get "auth/failure", 'session#failure' post "rooms", "rooms#create" delete "logout", 'session#logout' resources :users end
27. BUILD YOUR OWN CONTROLLERS
28. class RoomsController < BaseController def create room = Room.new(name: params['name'], public: true) room.save! redirect_to ‘/' end end
29. HOW TO LOAD CONTROLLERS?
30. HOW TO LOAD RAILS CONTROLLERS? Rails magic autoloading
31. require ‘users_controller’
32. $LOAD_PATH
33. puts $LOAD_PATH [ "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/eventmachine-1.0.7/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/daemons-1.1.9/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/thin-1.6.3/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.4/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/slop-3.6.0/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/method_source-0.8.2/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/pry-0.10.3/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/coderay-1.1.1/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/pry-byebug-3.3.0/lib", "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/byebug-8.2.4/lib" ]
34. puts $LOAD_PATH [ "/Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib" ] ls /Users/damirsvrtan/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/did_you_mean-1.0.0/lib/did_you_mean core_ext formatter.rb spell_checkable.rb version.rb extra_features jaro_winkler.rb spell_checkers extra_features.rb levenshtein.rb verbose_formatter.rb require 'did_you_mean/extra_features'
36. controllers_folder_path = File.join("app", "controllers") $LOAD_PATH << controllers_folder_path
37. method_missing?
38. const_missing?
39. class Object def self.const_missing(constant) require Noodles.to_underscore(constant.to_s) Object.const_get(constant) end end Admin::UsersController -> admin/users_controller
40. Learn how redirects work (30× status)
41. Learn how render and ERB work (use haml, slim, tilt)
42. Learn how cookies work
43. class UsersController < ApplicationController def index cookies[:favorite_color] ||= :black end end
44. class UsersController < ApplicationController def index unless request.cookies[:favorite_color] == :black response.headers.push('Set-Cookie', 'favorite_color=black') end end end
45. Build your own small ORM
46. 03 BENEFITS
47. REINVENTING THE WHEEL
48. BETTER GRASP ON RAILS, RACK, GEMS & THE HTTP LAYER
50. Any questions? DAMIR.SVRTAN@INFINUM.CO @DAMIRSVRTAN Visit infinum.co or find us on social networks: infinum.co infinumco infinumco infinum