Rails5について（仮）

2016年8月19日 イドバタ会議 #2

Transcript

1. Πυόλձٞ#2 / 2016೥8݄19೔ Rails5ʹ͍ͭͯ(Ծ)
2. ࣗݾ঺հ • খᖒণथʢ͓͟Θ·͖͞ʣ • גࣜձࣾγΦϥϘ • Ruby΍RailsͷΤϯδχΞ • GitHub: ozamasa • Twitter: @ozamasa
4. http://rubyonrails.org/
5. “Ruby on Rails (୯ʹʮRailsʯͱݺͿ͜ͱ΋͋ Γ·͢) ͸ɺRubyϓϩάϥϛϯάݴޠͰهड़ ͞ΕͨɺWeb։ൃϑϨʔϜϫʔΫͰ͢ɻ - Ruby on Rails νϡʔτϦΞϧ
6. rails new • gem install rails • rails new hello_rails5 • cd hello_rails5 • rails s http://localhost:3000
7. scaffold • rails g scaffold Book name:string auther:string • rails db:migrate http://localhost:3000/books
8. Railsͷྺ࢙ 2004-10-25 2007-12-07 2009-03-15 2010-08-29 2012-01-20 2013-06-25 2014-12-20 2016-06-30 0.8.0 2.0.1 2.3.2 3.0.0 3.2.0 4.0.0 4.2.0 5.0.0 RESTful SQlite3 Rack DRY CoC i18n Arel jQuery SCSS CoffeeScript Ruby2.0 Strong Parameters Turbolinks Active Job
10. Rails5Ͱͷ৽ػೳɾมߋ఺ 1. Action Cable͕஥ؒೖΓ 2. APIϞʔυΛ౷߹ 3. railsίϚϯυ΁ҰຊԽ 4. ࡉ͔͍มߋ͍Ζ͍Ζ
11. 1. Action Cable͕஥ؒೖΓ • WebsocketΛ࢖ͬͨϦΞϧλΠϜʹ૒ํ޲௨৴Λ͓͜ͳ͏Ξϓ ϦέʔγϣϯΛ؆୯ʹ࡞ΕΔΑ͏ʹͳΓ·ͨ͠ɻνϟοταʔ ϏεΈ͍ͨͳ΋ͷΛ؆୯ʹ࡞Ε·͢ɻ • Websocketॲཧʹ͓͍ͯίϯτϩʔϥͷΑ͏ͳ໾ׂΛ͢Δɺ νϟωϧΛ࡞੒͢ΔδΣωϨʔλ͕௥Ճ͞Ε·ͨ͠ɻ • rails g channel room speak
12. 2. APIϞʔυΛ౷߹ • WebAPI༻ͷΞϓϦέʔγϣϯΛ؆୯ʹ࡞ΔͨΊͷ࢓૊Έ͕ಋ ೖ͞Ε·ͨ͠ɻ • RailsΞϓϦέʔγϣϯΛ࡞੒͢Δࡍʹʮ--apiʯΦϓγϣϯΛ ͚ͭ·͢ɻ • rails new hello_rails5_api --api
13. 3. railsίϚϯυ΁ҰຊԽ • bin/rake ίϚϯυ͕ bin/rails ίϚϯυͰ΋࣮ߦͰ͖ΔΑ͏ʹ ͳΓ·ͨ͠ɻ • rails db:migrate # rake db:migrate • rails restart # touch tmp/restart.txt • rails test # rake test
14. 4. ࡉ͔͍มߋ͍Ζ͍Ζ • Ruby 2.2.2Ҏ্͕ඞਢɻ • σϑΥϧτAPαʔόʔ͕WEBrick͔Βpumaʹɻ • Model͸ ActiveRecord::Base ͔Β ApplicationRecord Λܧঝ͢ΔΑ͏ʹมߋɻ • ActiveRecord Attributes API͕௥Ճɻ • belongs_to ͸ରԠ͢Δσʔλ͕ଘࡏ͢Δ͜ͱ͕ඞਢʹɻଘࡏ͠ͳ͍৔߹͸όϦσʔγϣϯΤ ϥʔʹͳΔͷͰɺճආ͢Δʹ͸ optional: true ͕ඞཁɻ • View template ͕ͳ͍ͱ͖204͕ฦ͞ΕΔΑ͏ʹͳͬͨɻ • model.errors.details ͰΤϥʔλΠϓͱ option ͕औಘͰ͖ΔΑ͏ʹͳͬͨɻ • ActiveRecord::Relation#or • Numeric#positive?, negative? • Date#prev_day, next_day, next_weekday, prev_weekday, on_weekend? • Enumerable#pluck
15. Rails5Ͱͷ৽ػೳɾมߋ఺(͓͞Β͍) 1. Action Cable͕஥ؒೖΓ 2. APIϞʔυΛ౷߹ 3. railsίϚϯυ΁ҰຊԽ 4. ࡉ͔͍มߋ͍Ζ͍Ζ
16. Rails5͸ϚΠΫϩαʔϏεΛ ҙࣝ(Ծ)
17. ϚΠΫϩαʔϏε • ୯ҰͷΞϓϦέʔγϣϯΛখ͞ͳαʔϏε܈ͷ૊Έ߹Θͤͱ͠ ͯߏங͠ɺαʔϏε૬ޓΛRESTful Web APIͷΑ͏ͳγϯϓϧ ͰܰྔͳػߏʹΑͬͯ࿈ܞ͢Δ͜ͱͰɺશମతͳϓϩμΫτΛ ఏڙ͠Α͏ͱ͢Δߟ͑ํɻ • খ͞ͳαʔϏεΛૄ݁߹͢ΔΑ͏ͳߏ੒Λ࡞Δ͜ͱʹΑͬͯɺ ϞϊϦγοΫͳγεςϜͷෳࡶ͔͞Βࣗ༝ʹͳΔ͜ͱ͕Ͱ͖ɺ มԽʹڧ͍γεςϜΛ࡞Δ͜ͱ͕Ͱ͖Δɻ • http://martinfowler.com/articles/microservices.html
18. ϚΠΫϩαʔϏε͕஫໨͞ΕΔഎܠ • Ϋϥ΢υ • Ϛϧνςφϯτ • ܧଓతσϦόϦʔ • ܧଓతΠϯςάϨʔγϣϯ • ϏδωεαΠΫϧͷ୹໋Խ • ҰํͰɺ ✦ ӡ༻͸ਂࠁ ✦ ΠϯλʔϑΣʔεͷ࢓༷มߋʹΑΔӨڹ͕େ͖͍ ✦ ίϛϡχέʔγϣϯίετͷ૿େ ✦ ֶशίετͷ૿େ
19. “ ͨͱ͑͹300ਓ͍ͨͱͨ͠ΒɼզʑͰͦΕΛ๊͑ΔͷͰ ͸ͳ͘ɼ30ݸ͘Β͍ձࣾΛ࡞ͬͯͦΕͧΕ͕ߦಈ͢Ε͹ ͍͍Μ͡Όͳ͍͔ͳɻͦͯͦ͠͏͍͏΍Γํ͕͏·͍͘ ͘͜ͱΛੈʹ໰͏΄͏͕ɼੈͷதͷͨΊʹͳΔͷͰ͸ͳ ͍͔ͱࢥ͏ɻ -David Heinemeier Hansson