Ginza Rails 1 - Speaker Deck

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10.years of Rails Development @a_matsuda ۜ࠲Rails #1

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self Twitter: @a_matsuda GitHub: amatsuda

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࢓ࣄ ྲྀ͠ͷٕज़ސ໰ۀΈ͍ͨͳ

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झຯ

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झຯ͸৯΂า͖

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RubyϓϩάϥϚʔ / Railsϓϩά ϥϚʔ

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ࠓ೔ͷ͓͸ͳ͠

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΍ͬͺGinza SIX͔ͩΒ  Rails 6ͷ࿩

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΍ͬͺGinza SIX͔ͩΒ  Rails 6ͷ࿩ ͱࢥ͚ͬͨͲɺ ͋Μ·Γ࿩͍ͨ͜͠ͱ͕ͳ͍ͷͰɺ

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ʮRailsʹ͍ͭͯͷ஌ࣝΛަ׵͠ɺ ೔ʑͷ։ൃʹ໾ཱ͍ͯͯ͜͏ʯ

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Rails։ൃऀͷํʁ

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10೥Ҏ্Rails։ൃऀ  ΍ͬͯΔํʁ

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ͪΐͬͱੲ࿩

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10.years.ago

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github.com͕Ͱ͖ͨ೥

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Rails͸͡Ί·ͨ͠

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Asakusa.rbୈ1ճmeetupͷ  ੒Ռ෺

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ϦϙδτϦ͸4݄͔ΒGitHubʹஔ͔Ε͚ͯͨͲɺ ύον͸΀ΔΓ͡Όͳͯ͘BTSʹషΔํࣜͩͬͨ https:/ / rails.lighthouseapp.com/ projects/8994/tickets/623

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͋Ε͔Β10೥

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739 Commits ฏۉ5೔Ͱ1ίϛοτ͙Β͍ͱ͍͏ ͜ͱ͕Θ͔Δ

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ࢥ͍ग़ਂ͍ίϛοτͨͪ

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always enable pp on the Rails console https:/ /github.com/rails/rails/ commit/d54c7781

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always enable pp on the Rails console 2011೥ͷ࣌఺Ͱmame͞Μͷ Ruby 2.5ͷ৽ػೳΛઌऔΓ͍ͯ͠ ͨ͜ͱ͕Θ͔Δ

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for ... in => .each https:/ /github.com/rails/rails/ commit/22ed6cb7

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for ... in => .each Railsਓͨͪ͸ each Λ࢖͏΋ͷͩ ͱࢥΘΕ͕͚ͪͩͲɺ࣮͸DHH ͸ for ... in Ͱॻ͍ͯͨʂ

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treat fullwidth whitespace as a blank character https:/ /github.com/rails/rails/ commit/9c608603

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treat fullwidth whitespace as a blank character String#blank? ͕શ֯εϖʔεͱ ͔ͦͷଞݟ͑ͳ͍จࣈΛશ෦ۭന ѻ͍͢ΔΑ͏ʹ ͭ·ΓɺString#blank? ஗ͨ͘͠ ͷΦϨΦϨ

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Relation.where with no args can be chained with not, like, and not_like https:/ /github.com/rails/rails/ commit/de75af7a

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Relation.where with no args can be chained with not, like, and not_like 4छྨͷsyntaxΛ࣮૷ͯ͠ఏҊ ࠓͷ where.not() ͷsyntax͸JeremyҊ where.like ͱ͔ where.not_like ΋  ࣮૷͚ͨ͠ͲɺޙʹDHHʹϦόʔτ  ͞Εͨ

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tyop https:/ /github.com/rails/rails/ commit/c7f1bcd2

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tabenai (typo) https:/ /github.com/rails/rails/ commit/407baa2b

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tabenai (typo) ͍·ͩʹkamipo͞Μʹݴٴ͞Ε Δίϛοτ……

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Space Oddity https:/ /github.com/rails/rails/ commit/d9bdb611

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Space Oddity David Bowie͕๢͘ͳͬͨͷͰ͓ ͔͠ͳεϖʔεΛ୳ͯ͠ίϛοτ

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Ruby and Rails ࣗ෼ͷओͳकඋൣғ͸Rubyͱ Railsͷؒͷ͋ͨΓ͔ͳɺͱࢥͬ ͯΔͷͰɺͪΐͬͱͦ͜΁Μͷ࿩ Λ͠·͢ɻ

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kwargs & binding.local_variable_get Rails Ͱ࢖ͬͯΈΔ͜ͱͰ :if ͱ͔  :unless ͱ͍͏ϢʔεέʔεΛൃݟ Ruby 2.2͋ͨΓͰ binding.local_variable_get Λ  ಋೖ

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frozen_string_literal https:/ /bugs.ruby-lang.org/ issues/8976#change-53900

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frozen_string_literal Railsͷ .freeze ஍ࠈΛղফ͢Δ  ͨΊʹRubyଆʹಋೖΛఏҊ

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Reﬁnements https:/ /github.com/rails/rails/ commit/571f0f32

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Reﬁnements Railsʹಋೖ͠(ͯRubiniusͰಈ͔ ͳ͘͠)ͨͷΦϨΦϨ

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require_relative ͩ͞͞͞Μʹͦͦͷ͔͞Εͯ RailsͰ࢖ͬͯΈͨΒόάͬͯͨ Ruby 2.4͙Β͍Ͱमਖ਼

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protected Railsք۾Ͱ΍ͨΒͱޡ༻͞Εଓ ͚͖ͯͨػೳ ΄΅શͯ private ͷؒҧ͍

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When you say `protected` in Ruby, you might 99% be meaning `private` https:/ /github.com/ amatsuda/rails/commit/ 6832343c

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࣮ࡍͷίϛοτ͸ϥΠϒϥϦ͝ͱʹ  rdocͷग़ྗ݁ՌΛ֬ೝ͠ͳ͕Β

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Privatize unneededly protected methods in Active Record https:/ /github.com/rails/rails/ commit/5b14129d ͳͲͳͲ

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ηΩϡϦςΟؔ࿈ύον΋  ͍͔ͭ͘ https:/ /github.com/rails/rails/ commit/87eab595 https:/ /github.com/rails/rails/ commit/dfa33fa3 ͱͦͷपล ͳͲͳͲ

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௨Βͳ͔ͬͨఏҊͨͪ

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Sexier migrations https:/ /github.com/rails/rails/ pull/1163

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Sexier migrations migrationͷ t. Λ࡟Δ΍ͭ t. ཁΒͳ͍ͱࢥ͏Μ͚ͩͲͳ͊

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automatic client side validation with HTML 5 "required" attribute https:/ /github.com/rails/rails/ pull/3590

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automatic client side validation with HTML 5 "required" attribute Ϟσϧʹॻ͍ͨvalidationΛΫϥ ΠΞϯταΠυʹ΋൓ө 2011೥ʹఏҊ ࣌୅ΛઌऔΓ͗ͯͯ͢͠ݟૹΒΕ ͨ

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Action Args ΞΫγϣϯϝιουʹҾ਺Λ ΀ΔΓ͸ग़ͯ͠ͳͯ͘ɺνϟοτͰ ఏҊͨ͠ؾ͕͢Δ DHHʹେےͰ͸ؾʹೖͬͯ΋Β͑ͨ ΋ͷͷɺࡉ͔͍෦෼ͷ࢓༷͕ંΓ߹ Θͣ٫Լ

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օ͞Μ͔Βͷ :+1:׻ܴ͠·͢

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͜Μͳײ͡ͰɺRailsຊମʹಥͬࠐΉҎ֎ʹ΋ɺ  ϓϥάΠϯͱ࣮ͯ͠૷͢Δ͜ͱ΋͋Γ·͢

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ϓϥΪϯ։ൃ

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i18n_generators

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i18n_generators I18nͷϦιʔεΛਓ͕ؒॻ͔ͳ͘ ͯΑ͘ͳΔ࠷ߴʹ΂ΜΓͳ΍ͭ 10೥લʹ࡞ͬͨ΍͚ͭͩͲɺ Rails 5.2Ͱະͩʹ࢖͑Δ

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kaminari

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kaminari ϖʔδωʔγϣϯ͢Δ΍ͭ Rails 3Ͱಈ͍ͯΔ΋ͷ͕ͳ͔ͬͨ ͷͰ࡞ͬͨ M, V, Cͷ3ͭͷϨΠϠʔʹ  ·͕ͨΔػೳ

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Rails 3ͷ৽ػೳɺRails Engine  ͬͯ΍ͭͰ࡞ͬͯΈͨͯ͘࡞ͬͨ

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ͨͿΜੈքͰ2൪໨͙Β͍ʹݹ͍  ࣮༻ϨϕϧͷEngine

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action_args

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action_args DHHʹఏҊ͕௨Βͳ͔͚ͬͨͲɺgemͰ ͝ར༻͍͚ͨͩ·͢ Asakusa.rb໊ٛͰϝϯς શRailsϓϥάΠϯͷதͰҰ൪޷͖ ͱ͍͏͔ɺ͜Ε͕ೖͬͯͳ͍ͱRailsΞϓ Ϧॻ͚ͳ͍

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active_decorator

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active_decorator ϔϧύʔॻ͖ͨ͘ͳ͍(ϔϧύʔࢮΜͰ ΄͍͠) ઌߦϓϩμΫτ͕ͼͬ͘Γ͢Δ͙Β͍ ϔϘ͔ͬͨͷͰ࢓༷΋࣮૷΋1000ഒ͙ Β͍Ϛγͳ΍ͭΛࣗ࡞ OpinionatedͳσβΠϯ

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OpinionatedͳσβΠϯ ࠷ۙͷόʔδϣϯͰ݁ہંΕͨͷ Ͱɺ෦෼తʹഊ๺ͨ͠ͱݴ͑Δ

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html5_validations ຊମ΁ͷఏҊ͸௨Βͳ͔͚ͬͨͲ gemͰ͝ར༻͍͚ͨͩ·͢ ϓϥάΠϯ࡞Γͷڭࡐʹͪΐ͏Ͳ ͍͍͔΋

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stateful_enum

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stateful_enum AR֦ுܥ ΊͪΌΊͪΌ࣮༻త σβΠϯ΋࣮૷΋γϯϓϧͰ៉ྷ (ͩͬͨ)

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erd

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erd ERਤΛϒϥ΢β্Ͱΰχϣΰ χϣ͢ΔEngine ඍົʹະ׬

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Rails Engine͍͍ΑͶ

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hocus_pocus

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hocus_pocus Rails Engineͷݶքʹ௅ઓͨ͠  ҙཉ࡞ υΩϡϝϯτ͕օແͳͷͰͨͿΜ  ࢖͑ͳ͍ web_consoleΛΠϯεύΠΞͨ͠ͱ ͍͏ྺ࢙తҙٛ