Coming Soon…💎 / coming soon

Transcript

1. @amatsuda Coming Soon...💎 @amatsuda

2. ಥવͰ͕͢ɺ

3. OSS΍Γ͍ͨʂ 🛤 Α͍͘ΖΜͳͱ͜ΖͰ૬ஊ͞ΕΔ

4. ͍ΖΜͳͱ͜Ζ 🛤 Asakusa.rb 🛤 Ӭ࿨γεςϜϚωδϝϯτ͞ΜͷOSSύονձ 🛤 ͍ΖΜͳձࣾ 🛤 Πϯλʔωοτ

5. 🤔

6. ʮ΍Γ͍ͨͳΒ΍Ε͹͍͍ͷ Ͱ͸ʁʯ 🛤 ʮύονΛॻ͘ʯҎ֎ʹ΍Δ΂͖͜ͱ͸ͳ͍ 🛤 ύονΛॻ͘ର৅ͷιϑτ΢ΣΞ͸ੈͷதʹແ਺ʹ ͋Δ

7. 🔜

8. ͨͿΜࠓ͙͢ύονΛॻ͔ͳ͍ ཧ༝͸ٕज़ྗෆ଍ͱ͔Ͱ͸ͳ͍ 🛤 ࢓૊Έ 🛤 Ϟνϕʔγϣϯ 🛤 ετʔϦʔ 🛤 ͖͔͚ͬ

9. ͖͔͚ͬ͸͞·͟· 🛤 ࠓ೔͸ɺ͍ΖΜͳϓϩμΫτΛ঺հ͠ͳ͕ΒɺͦΕ Λॻ͍͖͔͚ͨͬ΍ͦͷͱ͖ߟ͍͑ͯͨ͜ͱͳͲΛ ͝঺հ 🛤 OSS։ൃʹڵຯ͕͋Δ͚Ͳ࢝Ί͔͕ͨΘ͔Βͳ ͍ɺܧଓͰ͖ͳ͍ɺͱ͍͏ํͷࢀߟʹͳΕ͹

10. ͱ͍͏ײ͡Ͱɺࠓ೔͸ࣗຫΛ
 ͠ʹདྷ·ͨ͠ʂ 🛤 ࣗຫͱࣗըࣗࢍ 🛤 RubyKaigiͰ͍ͭ΋εϐʔΧʔͷօ͞Μʹ͓ئ͍
 ͯ͠Δ΍ͭ

11. self 🛤 name: Akira Matsuda 🛤 GitHub: @amatsuda 🛤 Twitter:

    @a_matsuda

12. ੈքతʹ༗໊ͳϓϩάϥϚʔ
 ͸͡Ί·ͨ͠

13. ոจॻ

14. https://jp.quora.com/ϓϩάϥϛϯάʹ͓͍ͯ- ੈքతʹ༗໊ͳ೔ຊਓ͸͍/answers/141576838

15. https://twitter.com/joker1007/ status/1157578882184183808

16. ͦΜͳ͜ͱͳ͍Ͱ͢ʼʻ 🛤 ݺ͹ΕΕ͹Ͳ͜Ͱ΋ߦ͘ؾຬʑͳͷʹࠃ಺͔Β͸
 ͥΜͥΜ੠͔͚ͯ΋Β͑ͳ͍͚ͩͳΜͰ

17. Rubyίϛολʔ

18. Railsίϛολʔ

19. ͔ͤͬ͘ͷୈ1ճKaigi on RailsͳͷͰ ͪΐͬͱ͚ͩRailsͷ࿩

20. Railsͱࢲ

21. ݹגίϯτϦϏϡʔλʔ 🛤 https://contributors.rubyonrails.org/

22. https:// contributors.rubyonrails.org/

23. SinceͷཝΛݟΔͱΘ͔Δ

24. 13೥໨

25. ͜ͷதͰɺݱ໾Ͱίϛοτ
 ͯ͠Δਓ 🛤 ҾୀΛද໌ͨ͠΋͘͠͸3೥Ҏ্ίϛοτͯ͠ͳ͍ ਓΛফ͜͠ΜͰΈΔ

26. ݱ໾

27. Railsίϛολʔ͸ͲΜͲΜਓ͕
 ೖΕସΘ͍ͬͯΔ͜ͱ͕Θ͔Δ 🛤 ྺͷઙ͍ϝϯόʔ͕ͨͪ׆༂͍ͯ͠Δ

28. RailsϓϩδΣΫτ͸ɺ௕೥ଓ͍͍ͯΔΘΓ ʹɺ͔ͳΓ݈શʹӡӦ͞Ε͍ͯΔͷͰ͸ͳ͍͔

29. Ruby΍Railsͷपลͷ͍Ζ͍Ζ

30. Asakusa.rbओ࠵ͯ͠·͢

31. Asakusa.rbओ࠵ͯ͠·͢

32. ΦϯϥΠϯͰຖिՐ༵೔ʹ΍ͬͯΔ ͷͰ͓ؾܰʹ༡ͼʹདྷ͍ͯͩ͘͞

33. RubyKaigiͷ
 νʔϑΦʔΨφΠβʔ΍ͬͯ·͢

34. RubyKaigi Takeout 2020͝ࢀՃ ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ

35. RubyKaigi 2021 🛤 https://rubykaigi.org/2021

36. Kaigi on Railsͱࢲ

37. ͳΜ͔RailsͷΠϕϯτ΍Γ͍ͨͬͯݴͬͯΔେ૔͞Μ Λogijun͞ΜʹҾ͖߹ΘͤͯKaigi on Railsͷ໊લΛ ݱ୅ʹોΒͤͨͷΦϨΦϨ 🛤 ͱ͍͏࿩͸ઌिͷۜ࠲RailsͰ΋͏΍ͬͨͷͰলུ

38. झຯͰΑ͘ύονΛ
 ॻ͍͍ͯ·͢

39. ࠓिɺͱ͋Δ͓࢓ࣄͷRailsΞϓϦ ͷϦϙδτϦͰूܭͯ͠Έͨ݁Ռ 🛤 Railsຊମ͓ΑͼrailsΦʔΨχθʔγϣϯͰϝϯς͍ͯ͠Δgemͨͪ (16ݸ) 🛤 ࣗ෼͕࡞ͬͨ΋ͷ (6ݸ) 🛤 ϝϯςφΛ΍ͬͯΔ(=

    ίϛοτݖΛ͍࣋ͬͯΔ)΋ͷ (4ݸ) 🛤 ্هҎ֎ͷ͏ͪɺաڈʹ1ͭҎ্Կ͔Λίϛοτͨ͜͠ͱ͕͋Δ΋ͷ (86ݸ) 🛤 ະίϛοτͷ΋ͷ (211ݸ)

40. ΞϓϦͰbundle͍ͯ͠Δgemͷ͏ͪ 112/323 ʹ͸Կ͔͠Βίϛοτͯͨ͠ 🛤 3෼ͷ1ڧ͙Β͍ 🛤 ͜Μͳײ͡Ͱɺͱʹ͔͍͘ΖΜͳgemΛಡΈॻ͖
 ͠·͘ΔελΠϧ

41. ͍ΖΜͳਓ͕ॻ͍͍ͨΖΜͳίʔυΛ ಡΈॻ͖͢Δͷ͸ָ͍͠ͷͰ͓͢͢Ί

42. ͦͷͨΊʹ͸ɺ೔ࠒ͔Β͍ΖΜͳίʔυΛಡΈ ॻ͖͢Δ·ͰͷϋʔυϧΛԼ͓͛ͯ͘ͷ͕େࣄ 🛤 ಡΈ͍ͨɺͱࢥͬͨ࣍ͷॠؒʹ͸αοͱಡΈ࢝ΊΒ ΕΔΑ͏ʹ 🛤 ͦͷ৔Ͱ͙͢ʹύονΛॻ͖࢝ΊΒΕΔΑ͏ʹ

43. OSSϥΠϒϥϦͷίʔυΛಡΜͰ ύονΛॻ͘ϋʔυϧΛԼ͛Δʹ͸ 🛤 ·ͣ͸gem-src

44. 💎 gem-src 🛤 ͍ΖΜͳgemͷιʔείʔυ͕ϞϦϞϦऩूͰ͖Δ ΍ͭ 🛤 gem installίϚϯυΛ֦ுͯ͠ɺΠϯετʔϧͷ ͍ͭͰʹgemͷιʔείʔυΛউखʹखݩʹclone ͯ͘͠ΕΔΑ͏ʹ͢Δ

45. ࠓேɺେ͖ͳػೳ௥ՃΛ
 ͠·ͨ͠

46. gem-src as a Bundler Plugin! % bundler plugin install gem-src

47. ࠓ೔·Ͱࠔ͍ͬͯͨ͜ͱ 🛤 ͠͹Β͘લͷBundlerͷ࢓༷มߋͷ͍ͤͰɺ Bundlerܦ༝ͰΠϯετʔϧ͞ΕͨgemͰ͸after- install hook͕૸Βͳ͘ͳ͍ͬͯͨ

48. BundlerϓϥάΠϯԽ͢Δ͜ͱͰɺBundlerܦ༝ͰΠϯ ετʔϧ͞Εͨgemʹ΋gem-src͕ޮ͘Α͏ʹͳͬͨ

49. RubyGemsϓϥάΠϯ݉
 rbenvϓϥάΠϯ݉BundlerϓϥάΠϯ 🛤 1ϦϙδτϦͰτϦϓϧϓϥάΠϯʂ 🛤 ͜ΜͳϓϩμΫτ͸ͨͿΜੈքॳͩͱࢥΘΕΔ 🛤 ͱ͍͏͔RubyGemsϓϥάΠϯ΋rbenvϓϥάΠϯ ΋BundlerϓϥάΠϯ΋ϚΠφʔ͗ͯ͢୭΋࡞ͬͯ ͳ͍

50. ࠓ೔͔Β͸ɺrbenvͱbundlerͷ྆ํ ͱ΋ʹ૊ΈࠐΜͰ͓͘ͷ͕ਪ঑ઃఆ % git clone https://github.com/amatsuda/gem-src.git "$(rbenv root)/plugins/gem-src" 
 %

    bundler plugin install gem-src

51. ར༻͍ͯ͠Δgemͷιʔείʔυ͸શͯखݩʹ
 ஔ͍͓͚ͯΔΑ͏ʹͳͬͯɺύονΛൃࣹ͢Δ·Ͱ ͷϦʔυλΠϜ͕ܶతʹॖ·Δ 🛤 ๻ͷखݩͰ͸ਪఆ2000ݸఔ౓͕cloneࡁΈͰɺ
 ͍ͭͰ΋ύον͕ॻ͚Δঢ়ଶʹͳ͍ͬͯΔ 🛤 ͜Ε͕ແ͍ͱOSS׆ಈ͕Ͱ͖ͳ͘ͳΔ͘Β͍ศར

52. ͜ΕͰࠓ೔͔Βύον͕ૉૣ͘ ॻ͚ΔΑ͏ʹͳΔ͸ͣͰ͢

53. 🔜

54. ࠓ೔͔ΒύονΛͨ͘͞Μ
 ॻ͍͍͖ͯ·͠ΐ͏

55. ͦΕ͔Βɺ๻ͷ৔߹ɺଞਓͷϓϩμΫτʹύονΛ ౤͛Δ͚ͩ͡Όͳͯ͘ɺझຯͰΑࣗ͘࡞ͷgemΛ ࡞͍ͬͯ·͢

56. ࢓ࣄฑɺओʹʮRailsϓϥΪϯʯ

57. "Rails Plugin" 🛤 ࢮޠʁ 🛤 ࠷ۙͰ͸୯ʹ"gem"ͬͯݴΘΕͯΔʁ

58. gem != Rails Plugin

59. ౰ͨΓલ͚ͩͲɺੈͷதʹ͸Railsͷ֦ ுҎ֎ͷgem΋͋Δ

60. 💎 rfd

61. rfd 🛤 RubyͰ࡞ͬͨFD(ϑΝΠϥʔ)ͷΫϩʔϯ

62. ݟͲ͜Ζ 🛤 rfd/commands.rb 🛤 Կ͔Ωʔ͕ԡ͞ΕΔͱɺͱʹ͔ͦ͘ͷΩʔͷ໊લͷ ϝιου͕࣮ߦ͞ΕΔ

63. ͖͔͚ͬ 🛤 ͜ͷcommands.rbͷ࢓૊ΈΛࢥ͍͍ͭͯ͠·ͬͨ ͷͰ࣮૷ͯ͠Έͨ͘ͳͬͯ࡞ͬͨ

64. ϝϯς 🛤 2ը໘ରԠͱ͔͍ͨ͠ͱࢥ͍ଓ͚ͯ਺೥ؒ์ஔத…… 🛤 ։ൃΛख఻ͬͯ͘ΕΔํืूத

65. gem != Rails Plugin 🛤 ࠓ౓͸ٯʹɺgemͰ͸ͳ͍Rails pluginͷύλʔϯ

66. ੲ͸Railsͷ֦ு͸gem͡Ό
 ͳ͔ͬͨ

67. 💎 i18n_generators

68. i18n_generators 🛤 Rails I18nͷϦιʔεϑΝΠϧΛࣗಈ຋༁Ͱੜ੒͠·͘Δ΍ͭ 🛤 ๻͕ॳΊͯࣗ෼Ͱ࡞ͬͨRails plugin 🛤 (ͦΕҎલʹ͸ଞਓ͕࡞ͬͨ΋ͷΛforkͯ͠ϝϯςͱ͔͙ͯͨ͠Β͍) 🛤

    2008೥ 🛤 GitHubͱ͔Asakusa.rbͱ͔͕Ͱ͖ͨ೥

69. First CommitΛݟͯΈΔͱ…… 🛤 https://github.com/amatsuda/ i18n_generators/commit/7a9b45c

70. Installation

71. gem install ͱ͔ bundle install ͡Όͳ͍ʂ 🛤 ౰࣌͸gem͡Όͳ͔ͬͨ͜ͱ͕Θ͔Δ

72. Rails pluginͱͯ͠͸ൺֱతྺ࢙ ͕௕ͯͣͬ͘ͱϝϯςͯ͠ΔͷͰ 🛤 Ruby 1.8ʙ3.0ͷશͯͷόʔδϣϯRubyͰಈ͘ 🛤 Rails 3.0ʙ6.1ͷશͯͷόʔδϣϯRailsͰಈ͘ 🛤

    ݱଘ͢ΔRails I18nؔ࿈ϓϩμΫτͱͯ͠͸࠷ݹͷ ΋ͷ͔΋͠Εͳ͍

73. ࡞͖͔͚ͬͨͬ 🛤 Rails I18nϓϩδΣΫτʹ࠷ॳ͔ΒؔΘͬͨ೔ຊਓͩͬͨ 🛤 ౰࣌޿͘࢖ΘΕ͍ͯͨ gettext-rails ͷϦιʔεΛϕʔεʹͯ͠ɺຊମଆ ͷ ja.yml

    Λॻ͍ͨ 🛤 ΞϓϦ಺ͷYAML͸Ωʔͷ໋໊نଇ͕ܾ·ͬͯΔΜ͔ͩΒࣗಈੜ੒Ͱ͖ ΔͷͰ͸ʁͱࢥͬͨͷͰ΍ͬͯΈͨ 🛤 Rails I18n͢ΔͳΒ͜͏͍͏΋ͷ͕ඞਢͰ͸ʁͱࢥͬͯ࡞͚ͬͨͲɺ
 ҙ֎ͱ޿·Βͳ͔ͬͨ

74. ٯʹɺ࡞ऀ͕ࢥͬͨҎ্ʹ
 ޿·ͬͯ͠·ͬͨ΋ͷ

75. 💎 kaminari

76. kaminari 🛤 ϖʔδωʔγϣϯ͢Δ΍ͭ 🛤 2011೥

77. ࡞͖͔͚ͬͨͬ 🛤 ౰࣌σϑΝΫτͩͬͨwill_paginate͕Rails 3ʹ
 ͳ͔ͳ͔ରԠͯ͘͠Εͳͯ͘ࠔͬͯͨ 🛤 ͦͷ͜Ζ࡞ऀͨͪ͸GitHub͍ͬͯ͏ελʔτΞοϓ Λ૑ۀͯͯ͠๩͔ͬͨ͠ 🛤 Rails

    3ͷ৽ػೳΛ࢖͑͹΋ͬͱ͏·͘࡞ΕΔؾ͕ͨ͠

78. Rails 3ͷ৽ػೳ 🛤 Active RecordͷϝιουνΣΠϯํࣜͷ৽API 🛤 Rails Engine

79. Rails 3ͷ৽ػೳʹ͍ͭͯͷৄ͍͜͠ͱ͸ ౰࣌ WEB+DB Press Vol. 58 ʹॻ͍ͨ 🛤 ૯ूฤͷDVDΛങ͑͹ࠓͰ΋ಡΊ·͢

80. ݱଘ͢ΔதͰ͸ੈքͰԿ൪໨͔ʹ ݹ͍Rails Engine͔΋͠Εͳ͍

81. kaminari͍ͬͯ͏;໊͚ͨ͟લ 🛤 ίʔυ͸ॻ͚ͨΜ͚ͩͲɺ໊લ͕ܾΊΒΕͳͯ͘
 2ि͙ؒΒ͍ϦϦʔεͰ͖ͳ͔ͬͨ 🛤 ౦ژRubyձ͔ٞͳΜ͔Ͱhsbt͞Μʹ͖ͯͱ͏ʹ
 ܾΊͯ΋Βͬͨ

82. ڞಉϝϯςφ 🛤 @yuki24 🛤 ౰࣌Issue͕100ݸͱ͔ཷ·ͬͯΔͷΛݟΔʹݟ͔Ͷ ͯɺAsakusa.rbͷmeetupͰʮख఻͍·͠ΐ͏ ͔ʁʯͬͯݴͬͯ͘Εͨ

83. ͻͲ͍ίʔυ 🛤 ·͍͋Ζ͍Ζྺ࢙తܦҢ͕͋ΔΜͰ͢Α 🛤 ࠓͱͳͬͯ͸ݟͲ͜Ζ͸ಛʹͳ͍͠ɺίʔυ͸৭ʑ ͻͲ͍ΜͰಛʹಡΉඞཁ͸ͳ͍

84. 2011೥ͭͳ͕Γ 🛤 2011೥ʹ࡞ͬͨଞͷgem

85. 💎 action_args

86. action_args 🛤 Railsͷίϯτϩʔϥʔ͕MerbΈ͍ͨʹͳΔ΍ͭ 🛤 ͜ΕφγͰ͸RailsͳΜ͔࢖͑ͳ͘ͳΔ͙Β͍ศར ͳ΍ͭ

87. ࣗ෼͕࡞ͬͨgemͷதͰҰ൪޷͖ ͳ΍͔ͭ΋͠Εͳ͍

88. ࡞͖͔͚ͬͨͬ 🛤 Rails 3ͷίϯτϩʔϥʔͷίʔυ͕ؾʹ৯Θͳ ͔͔ͬͨΒ

89. Rails 2 + Merb = Rails 3 🛤 ίϯτϩʔϥʔʹؔͯ͠͸ɺྑ͘ͳ͍ํͷAPIΛ
 બ୒ͯ͠͠·ͬͨ

    🛤 ͜͜ͰMerbํࣜΛαϙʔτͰ͖ͳ͔ͬͨͷ͸Rails ͷྺ্࢙਺গͳ͍DHHͷ൑அϛεͩͱࢥ͏

90. ݟͲ͜Ζ 🛤 https://github.com/asakusarb/action_args/ commit/895b1ad

91. "using Refinements in order not to reveal our plugin internal

    methods"

92. ͜ͷgemͷதͰ͔͠࢖Θͳ͍௒ϓϥΠϕʔτͳ ϝιουΛੜ΍ͨ͢ΊʹrefinementsΛ׆༻ 🛤 ͜͜Ͱ͸ɺActionController::Base ʹϓϥΪϯ಺ ෦༻ͷϩδοΫΛ௥Ճ͍ͯ͠ΔΜ͚ͩͲɺͦΜͳ΋ ͷ͕ϢʔβʔͷΞϓϦʹ࿙Εग़ͪ͠Ό͏ͱΧοίѱ ͍ 🛤 ͦ͜ͰɺϑΝΠϧείʔϓͳϝιουΛݺͼ͍ͨͱ

    ͜ΖͰ͚ͩੜ΍͢Α͏ʹ͢Δ

93. 2015೥8݄ 🛤 ͜ͷίϛοτ͕ߦΘΕͨ2015೥8݄ʹԿ͕͋ͬͨͷ ͔ʁ

94. ͖͔͚ͬ͸ @_ksss_ ͞Μͷπ Πʔτ

95. https://twitter.com/_ksss_/ status/631458253688340480

96. https://twitter.com/a_matsuda/ status/631470723974873093

97. https://twitter.com/_ksss_/ status/631478188414144512

98. https://twitter.com/_ksss_/ status/631589269283303424

99. https://twitter.com/a_matsuda/ status/631608168175415296

100. ͪͳΈʹཌ೥ʹ͸Railsʹ΋ೖΕͨ 🛤 https://github.com/rails/rails/commit/ 571f0f32 🛤 ͜Ε͕Rails্࢙ॳrefinements

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

102. Refinements 🛤 ͓࢓ࣄͷRailsΞϓϦͰ͸΄ͱΜͲ࢖͍ಓ͕ͳ͍͚ ͲɺϥΠϒϥϦ΍ϑϨʔϜϫʔΫͷ։ൃʹ͸͛͢ʔ ศར

103. ͓ͦΒ͘͜ͷػೳΛ͏·͘࢖͏ͱɺΊͪΌΊ ͪΌ៉ྷͳϑϨʔϜϫʔΫΛ࡞Δ͜ͱ΋Մೳ͔΋ 🛤 public APIϝιουҎ֎͸ϢʔβʔʹԿ΋ݟ͑ͯͳ ͍Έ͍ͨͳ 🛤 Ͱ΋Rails͸͍·͞Βແཧ͔ͳ……

104. ͦΕ͔Βɺ2011೥ʹ࡞ͬͨ΋ͷΛ ΋͏ͻͱͭ

105. 💎 active_decorator

106. active_decorator 🛤 ͍ΘΏΔσίϨʔλʔ 🛤 Active Model͕஀ੜͨ͜͠ͱ΋͋ͬͯɺ Presenterύλʔϯͱ͔ͦ͏͍͏ͷ͕ྲྀߦͯͨ͠ 🛤 Draper͕Ͱ͖ͨͷ΋͜ͷ͜Ζ

107. ͖͔͚ͬ 🛤 Draperͷख৮Γ͕͋·Γʹ΋RubyΒ͘͠ͳͯ͘
 ؾ࣋ͪѱ͍ͷͰɺࣗ෼Ͱ΋ͬͱײ৮ͷྑ͍΋ͷΛ ࡞ͬͨ 🛤 ਖ਼͍͠ઃܭͱਖ਼͍࣮͠૷Λࢥ͍͍ͭͯ͠·ͬͨ

108. ਖ਼͍͠ઃܭͱਖ਼͍࣮͠૷ 🛤 view helperͳΜ͔ͩΒɺhelperͱಉ༷viewͷதͰ
 ͚ͩ༗ޮʹͳΔ΂͖
 => 🛤 ͋ɺͱ͍͏͜ͱ͸ɺview_assigns ͷλΠϛϯάͰҾ ͖౉͠ର৅ͷivarΛObject#extend͢Ε͹͍͍ͷͰ

     ͸ʂ

109. view_assignsͱ͔;ͭ͏஌Βͳ͍ ͱࢥ͏ΜͰ͚͢Ͳɺ 🛤 ͜ͷAPIͷ஌͕ࣝ͋Δ͔ͳ͍͔͕ɺDraperͱͷ
 ख৮ΓͷࠩΛੜΜͩ

110. WEB+DB Press Vol.58ͷಛू1Λॻͨ͘Ίʹ Rails 3ͷίʔυΛಡΈ·ͬͨ͘ͷ͕࣮݁ͨ͠

111. ख৮Γ 🛤 ;ͭ͏ͷRubyͷϞδϡʔϧΛૉ௚ʹ࢖͏͚ͩ 🛤 ಛघͳجఈΫϥεΛܧঝͱ͔͠ͳ͍ 🛤 ͓·͡ͳ͍Λ֮͑ͳͯ͘ྑ͍ 🛤 RubyͷύϫʔΛͦͷ··࢖͏

112. ࣅͨΑ͏ͳίϯηϓτͷ΋ͷΛ
 ΋͏1ݸ

113. 💎 jb

114. jb 🛤 JSONΛ࡞ΔͨΊͷςϯϓϨʔτΤϯδϯ 🛤 jbuilder͍ͬͯ͏DSL͕ԚΒͯ͘͠࢖͍ํ͕֮͑
 ʹ͍͘΍ͭͷalternative

115. ίϯηϓτ 🛤 JSONͱRubyͷHash͍͍ͬͯͩͨҰॹͩΑͶ 🛤 ςϯϓϨʔτͷதͰจࣈྻΛ੾ͬͨுͬͨͯ͠ JSONͬΆ͍จࣈྻΛ૊ΈཱͯΔΜ͡Όͳͯ͘ɺ HashͷΠϯελϯεΛ࡞ͬͨΒͦΕΛJSONʹ͠ ͯ͘ΕΔ΄͏͕௚ײతͩ͠ے͕ྑ͍ͷͰ͸ʁ

116. ઃܭͱ࣮૷ 🛤 Action ViewͰ͸1ຕ1ຕͷςϯϓϨʔτ͕ίϯύΠϧ͞Εͨ ΋ͷ͕ϝιουͱͯ͠ఆٛ͞ΕΔ 🛤 jbͰ͸ίϯύΠϧ΋Կ΋ͳͯ͘ɺςϯϓϨʔτʹॻ͍ͨ΋ͷ ͕ͦͷ···ΔͬͱϝιουbodyʹͳΔ 🛤 ͦͷϝιου͕HashͷΠϯελϯεΛฦ͢Α͏ʹ͢Ε͹͍

     ͍͚ͩɻͱʹ͔͘;ͭ͏ͷRubyΛॻ͚͹ྑ͍

117. ϝϦοτ 🛤 ṖͷDSLΛ֮͑ͳͯ͘ྑ͍ 🛤 Կ΋ͯ͠ͳ͍ͷͰ଎͍ 🛤 jbuilderΑΓ΋ϑΝΠϧ໊ͷ֦ுࢠ͕୹͍

118. ݟͲ͜Ζ 🛤 template handlerͷԿ΋΍ͬͯͳͬ͞΀Γ

119. lib/jb/handler.rb

120. handler͕Կ΋΍ͬͯͳ͍ςϯϓϨʔτ
 ΤϯδϯΛ΋͏1ݸ

121. 💎 string_template

122. ݱଘ͢ΔRubyͷςϯϓϨʔτ
 ΤϯδϯͷதͰ͸Ӊ஦࠷଎

123. jbͱಉ͡ײ͡ͰɺςϯϓϨʔτ͕
 ͦͷ··ϝιουbodyʹͳΔ 🛤 ͦ͜Ͱฦͨ͠String͕ͦͷ··HTMLͱ͔ʹͳΔ

124. ςϯϓϨʔτ͕ΫΦʔτ͞Εͨ΋ͷ͕ ·Δ͝ͱ1ຊͷStringϦςϥϧʹͳΔ 🛤 ແବͳbufferΦϒδΣΫτ͕࢖ΘΕͣʹҰܸͰ String͕૊ΈཱͯΒΕΔͷͰੈք࠷଎

125. ͨͩͷRubyͳͷͰɺಛघͳຒΊࠐΈ
 ه๏ͱ͔͸Ұ੾ͳ͍

126. <%= %> ͱ͔ແͯ͘େৎ෉ͳͷʁ

127. RubyͷStringʹ͸ #{} ͷ interpolation ͕͋ΔΜͰ͢Αʂ 🛤 ͜ΕͰ͚ͬ͜͏ͳΜͱ͔ͳΔ

128. ࢖͍Ͳ͜Ζ 🛤 layoutϑΝΠϧͱ͔Έ͍ͨͳɺΊͬͪΌrender͞ ΕΔ͚Ͳ͋·Γසൟʹ͍͡Βͳ͍Α͏ͳ΋ͷ͸͜Ε Ͱॻ͍͓ͯ͘ͱύϑΥʔϚϯε͕Ք͛Δ͔΋

129. ݟͲ͜Ζ 🛤 ΍ͬͺΓtemplate handlerͷԿ΋΍ͬͯͳͬ͞΀ Γ

130. lib/string_template/ handler.rb

131. Τϯδϯͭͳ͕Γ 🛤 Τϯδϯ͸ΤϯδϯͰ΋ɺࠓ౓͸ςϯϓϨʔτΤϯ δϯ͡Όͳͯ͘ Rails Engine

132. 💎 heavens_door

133. heavens_door 🛤 ΈΜͳେ޷͖Capybaraͷςετίʔυ͕ɺϒϥ΢ βͷૢ࡞͔Βੜ੒Ͱ͖ΔEngine

134. ໊લ 🛤 ࿐൐ઌੜͷελϯυ 🛤 ͳΜ͔ͦΕͬΆ͍ؾ͕ͨ͠Μ͚ͩͲɺ·͋Θ͔Γʹ ͔ͬͨ͘Ͱ͢Ͷ

135. ͖͔͚ͬ 🛤 ZOZOςΫϊϩδʔζ͞Μͷ৽نҊ݅ͰɺΈΜͳͰ systemςετॻ͜͏͍ͥͬͯ͏͜ͱʹͳͬͯ 🛤 Ͱ΋खॻ͖Ͱ͍͍ͪͪॻ͘ͷ͸େมͩͬͨͷͰ

136. ࣮͸ϒϥ΢βૢ࡞Ϟʔυ͚ͩ͡Όͳͯ͘ ίϚϯυϥΠϯϞʔυ΋͋ͬͨΓ͢Δ

137. ίϚϯυϥΠϯϞʔυʁ 🛤 ࡞ͬͨຊਓʹ͔͠࢖͍ํ͕Θ͔Βͳ͍πʔϧʹͳΓ ͦ͏ͳͷͰ৸͔ͤͯ͋Δ

138. ઌߦݚڀ 🛤 ͜ͷϒϥ΢β্ͷૢ࡞Λه࿥ͯ͠capybaraͷίʔ υΛు͘ػೳ͸ɺ2010೥ʹ࡞ͬͨhocus_pocusͬ ͍ͯ͏Rails Engine pluginͷػೳͱͯ͠طʹ࣮૷ ࡁΈͩͬͨ΋ͷ

139. ͜Μͳ;͏ʹxx೥ܦ͔ͬͯΒੲॻ͍ͨ ίʔυͷժ͕ग़ͨΓ͢Δ͜ͱ΋͋Δ 🛤 ௕೥ίʔυΛॻ͖ଓ͚ͯΔͱΞυόϯςʔδ͕͋ͬ ͨΓ͢Δɺͱ͍͏ࣄྫ

140. 💎 hocus_pocus

141. hocus_pocus 🛤 WikiΈ͍ͨͳײ֮Ͱɺϒϥ΢β্Ͱૢ࡞ͨ͠Βαʔ όʔ্Ͱϖʔδ͕࡞ΕΔRails Engine

142. ࡞Γ࢝Ίͨͷ͸2010೥ 🛤 Kaminari͕Engineͱͯ͠͸૬౰ݹ͍͖ͬͯͬ͞ ݴ͚ͬͨͲɺͦΕΑΓݹ͔ͬͨ 🛤 ͍͢͝Φʔύʔπ͔΋͠Εͳ͍

143. ͍·͍ͪྲྀߦΒͳ͔ͬͨ…… 🛤 UI͕ϔϘ͗ͨ͢ 🛤 πʔϧࣗମͷ֓೦͕೉͗ͨ͢͠ 🛤 υΩϡϝϯτ͕ແͩͬͨ 🛤 ΍Γ͔ͨͬͨ͜ͱ͸Ͱ͖ͦ͏ʂͬͯࢥͬͨΒͳΜ͔ ๞͖ͨ

144. ͍͍ͩͨͰ͖ͨʂ => ͪΌΜͱ࢖͑ Δ·Ͱ࡞ΓࠐΉͷ͕ۤख

145. ίϯηϓτ͕ಛघͩ͠࢖͍ํ΋೉ղͰɺ࡞ͬͨ ຊਓʹ͔͠࢖͍ํ͕Θ͔Βͳ͍πʔϧʹͳͬͯ ͠·ͬͨ

146. ͜ͷϓϩμΫτ͕ٴ΅ͨ͠Өڹ 🛤 Railsඪ४ͷweb-consoleΛΠϯεύΠΞ 🛤 https://github.com/rails-girls-summer-of- code/summer-of-code-2014/wiki/Project- ideas#conductor-web-based-assistant-for- development

147. ࡞ͬͨߕ൹͸͋ͬͨΈ͍ͨ 🛤 ݁ہweb-console͸΍ͬͯΔ͜ͱ͸ͥΜͥΜҧ͏ ͚Ͳ……

148. Capybaraؔ࿈ͷϏδϡΞϧܥͷ EngineΛ΋͏1ͭ (͋ͱ͍ͭͰʹݴ͏ͱϓϩάϨۂ໊ͭͳ͕Γ)

149. 💎 roundabout

150. roundabout 🛤 ը໘ભҠਤੜ੒πʔϧ

151. ը໘ભҠਤͷੜ੒ 🛤 ࣮૷ͱͯ͠͸CapybaraͷϞϯΩʔύον 🛤 ςετίʔυதʹCapybaraͰൃੜͨ͠ϦΫΤετ ͷભҠΛશ෦ه࿥͢Δ 🛤 ͜ΕΛͭͳ͛ͯֆʹ͢Δͱը໘ભҠਤʹͳΔ

152. ͜Μͳײ͡(RedmineϓϩδΣΫτͰ ࣮ߦͨ݁͠Ռ)

153. ਤʹ͸ςετ͕ॻ͔Ε͍ͯΔ
 ΋ͷ͔͠ग़ͯ͜ͳ͍ 🛤 ͭ·Γɺ͋ΔछͷςετΧόϨοδతͳ΋ͷ͕Մࢹ Խ͞ΕΔπʔϧͰ͋Δͱ΋ݴ͑Δ

154. ΞΠσΞ͸͓΋͠Ζ͍͠ɺϙςϯγϟϧ͸͋Δ ؾ͕͢ΔΜ͚ͩͲɺ͋·Γ࢖ΘΕͯΔखԠ͑͸ ͳ͍͔΋ 🛤 ͜ΕΛػʹͥͻ͝ར༻͍ͩ͘͞

155. ΧόϨοδؔ࿈ͭͳ͕ΓͰ

156. 💎 per_file_coverage (unreleased)

157. per_file_coverage (Ծ) 🛤 ςετ࣮ߦ࣌ʹɺΞϓϦΛߏ੒͢Δ֤ϑΝΠϧ͕
 Ͳͷςετ͔Βݺͼग़͞Ε͍ͯΔ͔(ͱɺͦͷٯ)Λ
 શ෦ચ͍ग़ͯ͠ՄࢹԽ͢Δ

158. ࣮૷ͱͯ͠͸SimpleCovͷ
 ϓϥάΠϯ 🛤 (ͨͩ͠SimpleCovʹ͸ϓϥάΠϯͳͲͱ͍͏֓೦ ͸ͳ͍)

159. ஍ࠈͷϞϯΩʔύον 🛤 ͦ͏͍͑͹͍͓ͪ͏ SimpleCov ͷίϛολʔͰ͸ ͋ΔͷͰɺ֦ு͕͠΍͍͢Α͏ʹϑΟʔυόοΫ͙ Β͍͸͍͖͍ͯͨ͠

160. RubyͷCoverageϞδϡʔϧΛ
 ར༻

161. ͖͔͚ͬ 🛤 ANDPADࣾͷͦͦ͜͜ͷن໛ͷطଘΞϓϦʹࢀը ͯ͠ɺʮ͜ͷίʔυ͸ͲͷspecϑΝΠϧ͔Βςε τ͞ΕͯΔΜͩΖ͏ʁʯͱ͔ɺٯʹʮ͜ͷspec͸ Ͳ͜Β΁ΜͷϑΝΠϧΛςετͯ͠ΔΜͩΖ͏ʯͱ ͔஌Γͨ͘ͳͬͨͷͰ

162. application_controller͚ͩͰ΋300ݸͱ͔͋Δ ͷͰɺ΍ͬͺ͜͏͍͏ͷ͕஌Γͨ͘ͳΔΜͰ͢Α

163. Ξ΢τϓοτྫ

164. ͔͠͠ɺgem͸·ͩͳ͍…… 🛤 HTML͕ڊେԽͨ͠৔߹ͷύϑΥʔϚϯε໰୊͕
 ౗͍ͤͯͳ͍ 🛤 ໊લ͕ܾ·͍ͬͯͳ͍ʂ

165. ୭໊͔͍͍લΛ͚͍ͭͯͩ͘͞ 🛤 ͓ئ͍͠·͢

166. Coming Soon...💎

167. ࠷ۙͷ͓࢓ࣄؔ࿈Ͱ࡞ͬͨ΋ͷΛ ΋͏1ͭ

168. 💎 lightweight_attributes

169. lightweight_attributes 🛤 Active RecordͷϞσϧͷΠϯελϯεੜ੒Λۃྗ ܰ͘͢ΔͨΊͷ͑͛ͭͳ͍ϞϯΩʔύον

170. ARͷϞσϧͷΠϯελϯεੜ੒ 🛤 AR 4͙Β͍Ͱೖͬͨtype castingͱ͔͍͏୭΋࢖ͬͯͳ ͍ػೳͷͨΊʹٸܹʹॏͨ͘ͳͬͨ 🛤 ͱʹ͔͘DB͔ΒϞσϧΛΨόοͱҾͬுͬͯฦ͚ͩ͢Έͨ ͍ͳAPIͱ͔ͩͱɺ͕͜͜ϘτϧωοΫʹͳΔ 🛤

     RubyϨϕϧͰ͸ɺಛʹTimeతͳ΍ͭͷparse͕஗͔ͬͨ Γ͢Δ

171. RubyͰTimeతͳ΍ͭͷparse͕ ଎͘ͳΔͱ͍͍ͳ͊ 🛤 https://bugs.ruby-lang.org/issues/16005

172. https://bugs.ruby-lang.org/ issues/16005

173. ͱ΋͋Εɺ lightweight_attributes ʹ͍ͭͯ

174. sponsored by ΞΧπΩ 🛤 ࠓ೥͔Βnobuͷύτϩϯʹͳͬͨ͋ͷΞΧπΩࣾ Ͱ͢ʂ

175. ίʔυ͕͑͛ͭͳ͗ͯ͢͞
 ϝϯςෆೳ 🛤 ͜ͷ΁Μͷίʔυ͸Railsͷόʔδϣϯ͝ͱʹͥΜ ͥΜҧͬͯͯɺෳ਺όʔδϣϯରԠͱ͔Ϛδແཧ

176. ͱ͍͏͜ͱͰɺ·ͱ΋ʹϝϯς ͞Εͯͳ͍ͷͰར༻͸ඇਪ঑

177. type castingΛ஗Ԇͤ͞Δͱ͍͏ ΞΠσΞ 🛤 kamipo͞Μ͕͏·͍͜ͱरͬͯActive Record 6.1ʹίϛοτͯ͘͠Ε͔ͨΒ΋͏͓ଂೖΓͰ͍͍͔ ͳ……

178. Rails 6.1

179. Coming Soon...💎

180. ΞΧπΩ͞ΜεϙϯαʔͰ΋͏1ͭ

181. 💎 activerecord-ruby (unreleased) 🛤 ΞϓϦதͰߋ৽͞Εͳ͍͜ͱ͕લఏͷ͍ΘΏΔ
 ʮϚελʔσʔλʯΛΠϯϝϞϦʹల։ 🛤 ARͷΦϒδΣΫτͷ··Ωϟογϡ͢Δ 🛤 readonlyͳͷͰ҆৺ͯ͠࢖͍ճͤΔ

182. ૂ͍ 🛤 ΫΤϦͷແବଧͪΛ཈੍ 🛤 ARͷΦϒδΣΫτੜ੒ίετΛ࡟ݮ 🛤 GCෛՙΛܰݮ

183. ͜͜·ͰͳΒ୭΋͕ߟ͑ͨ͜ͱ͋Δͱࢥ͏ Μ͚ͩͲɺΠϯλʔϑΣΠεͱ࣮૷͕໰୊ 🛤 Model.fetch_from_cache ͱ͔ͦ͏͍͏ײ͡ͷ
 μα͍ίʔυ͸ઈରॻ͖ͨ͘ͳ͍ 🛤 ϓϩμΫγϣϯͷίʔυ͸;ͭ͏ͷARͷίʔυ͔Β Կ΋ม͑ͣʹɺͰ΋ͲͷϞσϧ͕ʮϚελʔςʔϒ ϧʯ͔͚ͩڭ͑ͯ΍ͬͨΒউखʹۭؾΛಡΜͰಈ࡞

     ͢Δ͙Β͍͕͍͍

184. activerecord-ruby ͷAPI 🛤 ʮϚελʔʯͬΆ͍ϞσϧʹҎԼͷΑ͏ͳએݴΛ
 ೖΕΔ class Country < ActiveRecord::Base find_by_ruby!

     end

185. ͦΕ͚ͩ 🛤 ଞͷίʔυ͸Ұ੾͍͡Βͳͯ͘΋ɺҎԼͷΫΤϦͨ ͕ͪDBΛݺͼग़͢͜ͱͳ͘ద੾ͳ஋Λฦ͢ Model.find(id) Model.where(prefecture: 'Tokyo').order(:created_at)

186. joins͕ೖͬͯͨΓ͢ΔΑ͏ͳෳࡶͳΫΤϦ ͕౤͛ΒΕͨΒDBʹϑΥʔϧόοΫ͢Δ

187. ϝϞϦ͔Βऔ͖ͬͯͨ΋ͷͱDB͔Βऔ͖ͬͯͨ ΋ͷʹᴥᴪ͕ͳ͍͔Ͳ͏͔ൺֱ͢ΔϞʔυΛ౥ࡌ 🛤 ςετΛ͜ΕͰճ͓ͯ͘͠ͱ҆৺Ͱ͖Δ͸ͣ

188. ύϑΥʔϚϯεήΠϯ 🛤 ະ஌਺ 🛤 ਖ਼௚ͳͱ͜Ζɺ·ͱ΋ͳ࣮ΞϓϦͰͷޮՌ͸ݶఆత ͳ༧ײ͸͍ͯ͠Δ 🛤 DBͷ઀ଓ͕ύοπϯύοπϯΈ͍ͨͳ؀ڥͰ͸
 ޮ͔͘΋

189. ݟͲ͜Ζ 🛤 ARͷΠϯλʔϑΣΠεͱγʔϜϨεʹ࿈ܞ͢ΔͨΊ ͷςΫχοΫ

190. ࣮૷ৄࡉ 🛤 AR͕૊ΈཱͯͨASTΛSQLͰ͸ͳͯ͘Rubyͷ
 ίʔυʹม׵͢Δ ToRuby visitor ΛΰϦΰϦ࣮૷

191. gem͸·ͩͳ͍

192. Coming Soon...💎

193. ࠓ·Ͱʹແ͔ͬͨΞϓϩʔνͩ͠ɺίʔυ΋͔ ͳΓ͓΋͠Ζ͍ͷͰɺੈʹग़ͨΞΧπΩʹ͸ͥͻ ͍ͬͯ͡Έ͍ͯͩ͘͞

194. ઌߦݚڀ 🛤 arel_ruby

195. 💎 arel_ruby 🛤 https://github.com/amatsuda/arel_ruby 🛤 (2012೥)

196. ArelͷASTͷRuby visitor 🛤 ͭ·ΓɺࠓճͷϓϩμΫτͷΤϯδϯ෦෼ͦͷ΋ͷ

197. ͜Ε͸౰࣌ɺRDB͔Β੾Γ཭ͯ͠Rubyͷੈք͚ͩ ͰΞϓϦͷςετ͕࣮ߦͰ͖ͨΒ͓΋͠Ζ͍͔΋ɺ ͱࢥͬͯ΍ͬͯΈͨ΋ͷ 🛤 ͋·Γݱ࣮తͳϢʔεέʔεͰ͸ͳ͔ͬͨͷͰɺ
 ୯ʹ໘നͦ͏͔ͩΒ࡞ͬͯΈ͚ͨͩΈ͍ͨͳײ͡ʹ ͳͬͯ͠·ͬͨ 🛤 ͦͯͣͬ͠ͱ͓ଂೖΓ

198. ίʔυ͸ॻ͚ͯ΋Ϣʔεέʔε Λݟޡͬͨྫ

199. 8೥ܦͬͯɺ৽ͨͳϢʔεέʔεΛ ݟ͚ͭͯ෮׆

200. ͜Μͳ;͏ʹxx೥ܦ͔ͬͯΒੲॻ͍ͨ ίʔυͷժ͕ग़ͨΓ͢Δ͜ͱ΋͋Δ 🛤 ௕೥ίʔυΛॻ͖ଓ͚ͯΔͱΞυόϯςʔδ͕͋ͬ ͨΓ͢Δɺͱ͍͏ࣄྫ

201. ·ͱΊ

202. ΍ͬͺRails 🛤 RailsΛ͍ͬͺ͍ಡΜͩΓॻ͍ͨΓ͍ͯ͠ΔͱRails ʹৄ͘͠ͳΔ

203. ͍ͭͰ΋Ͳ͜Ͱ΋ૉૣ͘
 ύονΛॻ͜͏ 🛤 Railsʹৄ͘͠ͳΔͱɺRails͚ͩ͡Όͳ͍ͯ͘ΖΜ ͳ΋ͷʹύον͕ॻ͚ΔΑ͏ʹͳΔ 🛤 gem-srcΛrbenv΍bundlerͱ࿈ܞ͓͍ͤͯͯ͞ɺ ৗʹ࠷୹खॱͰύονΛ౤͚͛ͭΕΔ४උΛ੔͑ͯ ͓͜͏

204. ͱʹ͔ͨ͘͘͞Μ
 ύονΛॻ͜͏ 🛤 ύονΛͨ͘͞Μॻ͔ͳ͍ͱɺύον͕ॻ͚Δ
 Α͏ʹ͸ͳΒͳ͍ 🛤 ྔ͕࣭ʹస͡Δ͜ͱ΋͋Δ

205. gem࡞Ո΁ͷಓ 🛤 ͍ΖΜͳ΋ͷʹύονΛॻ͍ͯΔͱɺଞਓʹॻ͔ͤ ΔΑΓࣗ෼Ͱॻ͍ͨ΄͏͕ྑ͍΋ͷ͕Ͱ͖Δ͜ͱ͕ Θ͔Δ 🛤 ͖͔͚ͬ΍ϢʔεέʔεΛ͔ͭ·͑ͯɺϓϩμΫτ ʹ͍ͯ͜͠͏

206. ͦΜͳΜ୭Ͱ΋ࢥ͍ͭ͘Ͱ͠ΐɺΈ͍ͨ ͳgemͰ΋ͱʹ͔͘΍ͬͯΈΔͱྑ͍ 🛤 ҙ֎ͱ୭΋΍Ζ͏ͱͯ͠ͳ͔ͬͨΓɺࣗ෼͕ੈքͰ Ұ൪͏·͘΍ΕͨΓ͢Δ

207. ໊લॏཁ 🛤 ໊લ͚ͭΔͷΉ͍ͣ 🛤 ໊લ͕͚ͭΕͳͯ͘ࠓ೔ͷൃදʹؒʹ߹Θͳ͔ͬͨ ΋ͷ͕͍͔ͭ͋͘ΔͷͰɺ୭͔Ұॹʹ໊લΛߟ͑ͯ ΄͍͠……

208. gemͷख़੒ 🛤 ࡞ͬͨgem͸͙͢ʹժ͕ग़ͳͯ͘΋ɺޙ͔ΒϢʔε έʔε͕͍͖ͭͯͯɺԿ೥΋ܦ͔ͬͯΒ໾ʹཱͬͨ Γ͢Δ 🛤 ͷͰɺ΍ͬͺΓΞΠσΞΛ͖ͪΜͱίʔυʹམͱ͠ ͓ͯ͘͜ͱ͕େࣄ

209. ϝϯς 🛤 gemΛ͍ͬͺ͍࡞ͬͨΓͯ͠Δͱɺϝϯςର৅͕
 ૿͑͗ͯ͢ख͕ճΒͳ͘ͳΔ 🛤 ͦ΋ͦ΋๞͖ͬΆ͍ਖ਼֬ͳͷͰϝϯςͱ͔ۤख…… 🛤 ͳͷͰɺ୭͔ϝϯςख఻ͬͯ͘ΕΔͱͱͯ΋خ͠ ͍……

210. Future Works 🛤 ࠓޙͱ΋ɺԿ͔ϓϩμΫτͷΞΠσΞ͕͖߱ͬͯͨ Βɺ਺ϲ݄ʹ1ճ͙Β͍ͷϖʔεͰgemΛ࡞Γଓ͚ ͍ͨ 🛤 @amatsuda ͷ࣍ճ࡞ʹ͝ظ଴͍ͩ͘͞ʂ

211. Coming Soon! 💎

212. ·ͱΊ 🛤 গ͠Ͱ΋օ͞Μͷ͜Ε͔ΒͷOSS׆ಈͷώϯτʹ ͳ͍ͬͯΕ͹޾͍Ͱ͢

213. end 🛤 name: Akira Matsuda 🛤 GitHub: @amatsuda 🛤 Twitter:

     @a_matsuda