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Active Recordͷ ޲͜͏ଆ Place: Rails Developers Beer Bash Date: 2019-09-26 Speaker: େ૔խ࢙

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ࣗݾ঺հ • ໊લɿେ૔խ࢙ • ৬ۀɿϑϦʔϥϯεͷRubyϓϩάϥϚ • ҰݴɿVimConfͷӡӦ΍ͬͯ·͢ɺ11݄3೔։ ࠵ʂνέοτ·ͩ͋ΔΑʂ • ೋݴɿGrow.rbͱ͍͏ίϛϡχςΟ΍ͬͯ·͢

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ActiveRecord ޷͖ͳਓ✋

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Ruby Weekly ஌͍ͬͯΔਓ✋

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ࠓ೔ͷLTͷ͖͔͚ͬ

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https://rubyweekly.com/ issues/467

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> Active Record is the worst of all the popular ORM patterns

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ຊ౰ʹͦ͏ͳͷ͔ʁ

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ʮRuby on Railsͷ ਖ਼ମͱ޲͖߹͍ํʯ https://speakerdeck.com/yasaichi/what-is-ruby-on-rails- and-how-to-deal-with-it

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Active RecordͰ͸ίʔϧ όοΫͱόϦσʔγϣϯͰ σʔλϞσϧͱϢʔεέʔε ͕ີ݁߹͓ͯ͠ΓɺͦΕ͕ߴ ଎։ൃΛՄೳʹ͍ͯ͠Δ

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ີ݁߹͸ѱ☠

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Active Record͸ಉ͡σʔλ Ϟσϧʹෳ਺ͷϢʔεέʔε ͕ద༻͞ΕΔͱਏ͘ͳΔ

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͜Ε·ͰʹఏҊ͞Εͨղܾࡦ

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ʮRuby (off|with) the Railsʯ https://speakerdeck.com/shinpeim/ruby-off-with-the- rails

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Ϣʔεέʔε͕ҟͳΔෳ਺ͷ Ϟσϧ͕ಉ͡ςʔϒϧΛࢀর ͢Δ

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ʮApplicationModel ͷ͋Δ ෩ܠʯ https://speakerdeck.com/hshimoyama/rails-with- applicationmodel

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ςʔϒϧʹඥ෇͔ͳ͍Ϟσϧ ʢApplicationModelʣΛఆ ٛ͢Δ

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ͦͯ͠ɺօ͞Μ͓ͳ͡Έͷ αʔϏεΫϥε

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ͲΕ΋Αͦ͞͏☺

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͕ͩͲΕ΋ެࣜͰ͸ͳ͍

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ͱ͜ΖͰɺ࠷ۙͷDHHͷൃݴ Λฉ͍͍ͯΔͱɺ ʮ౷߹͞ΕͨγεςϜ ʢintegrated systemsʣʯ ʮ૳ݫͳϞϊϦε ʢmajestic monolithsʣʯ ΁ͷݴٴ͕ଟ͍

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https://rubyonrails.org/ doctrine/#integrated- systems

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໌֬ͳϞϊϦεࢦ޲

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࠷ۙͷRails͸Active Storage ΍ϚϧνDBػೳͷΑ͏ʹgem ͷػೳΛऔΓࠐΈͭͭ͋Δ

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ཚཱ͢ΔαʔϏεΫϥεϥΠ ϒϥϦ

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DHH͞ΜɺActive Recordͷ ্ʹ৐ͤΔύλʔϯ ΋”Omakase”Ͱग़ͯ͘͠Ε· ͤΜ͔Ͷʁ

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·ͱΊ • Active Recordύλʔϯ͸࠷ॳ͸͍͍΍ͭɺͩ ͕ͦͷ͏ͪਏ͘ͳΔ • ղܾࡦ͸͢Ͱʹෳ਺ఏҊ͞Ε͍ͯΔ͕ɺެࣜ ͷ΋ͷ͸ͳ͍ • ʮ౷߹͞ΕͨγεςϜʯͷதʹղܾࡦ͕ೖͬͯ ͘Δͱ΋ͬͱྑ͘ͳΓ·͢Ͷʂ