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Active Record について考える
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jinroq
September 26, 2018
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Active Record について考える
Fukuoka.rb #107 Rails LT 特集
jinroq
September 26, 2018
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Transcript
Active Record ʹ͍ͭͯߟ͑Δ 2018/09/26 Fukuoka.rb #107 Rails LT ಛू ODA
Hirohito
͜ͷ LT େձͰ https://cdg.connpass.com/event/89504/
͜Μͳ LT Λͨ͠ https://speakerdeck.com/oda/rubykaigi-2018-de-not- accepted-saretaneta
ͦͷ LT ͷதͰ
͜Μͳωλ͕͋ͬͨ
CLOMO MDM ͱʁ
ΤΫεϙʔτػೳ
ΤΫεϙʔτػೳ
ͬͨ͜ͱ
ͬͨ͜ͱ
ͬͨ͜ͱ
ͬͨ͜ͱ
Α͘ݴΘΕΔ Rails ͷ ύϑΥʔϚϯεվળํ๏
Active Record Λ 0.0 msec ʹ͠Α͏ʂ
= Active Record ΛΘͳ͍
औΒΕΔબࢶ • ੜ SQL • Arel • ͦͷଞ
͜ͷ߹ੜ SQL Λબͨ͠
͜͜Ͱൃੜ͢Δٙ
Ұͭͷ SELECT จͰ CSV શཁૉΛ औಘ͢Δ͜ͱ Active Record Ͱ ࣮ݱͰ͖ͳ͔ͬͨͷ͔ʁ
͜Μͳهࣄ͕͋ͬͨʢ2013/06/03ʣ http://www.atmarkit.co.jp/ait/articles/1306/03/news057.html
͜Μͳهࣄ͕͋ͬͨʢ2013/06/03ʣ http://www.atmarkit.co.jp/ait/articles/1306/03/news057.html
2013/06/27 Rails ver. 4.0 ϦϦʔε
͜ΕΛ౿·͑ͨ͏͑Ͱ
ڪΒ͘Ͱ͖ͳ͍
ڽͬͨ͜ͱΛΖ͏ͱ͢Δͱ Active Record ͕ᐫʹͳΔ ߹͕͋Δ
ಛʹύϑΥʔϚϯεվળʹ ͓͍ͯݦஶͩͬͨ
Active Record ෆཁʁ
NO!!!
ෆཁͳΒ Rails ͔Βফ͑ ସ ORM ͕࠾༻͞ΕΔͣ
͔͠͠ɺΘΕଓ͚͍ͯΔ
͜Μͳهࣄ͕͋ͬͨʢ2013/06/03ʣ http://www.atmarkit.co.jp/ait/articles/1306/03/news057.html
ػೳ < ن
ػೳ < ن CoC (Convention over Configuration)
·ͱΊ • Active Record CoC ʹج͍͍ͮͯΔ • Active Record
ΛࣺͯΔঈେ͖͍ • Active Record Λਂ͘ΕΔ΄Ͳ Active Record ͷํ͕ศརʢͳͣʣ
͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠