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Active Record について考える

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September 26, 2018
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Active Record について考える

Fukuoka.rb #107 Rails LT 特集

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jinroq

September 26, 2018

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Transcript

  1. Active Record ʹ͍ͭͯߟ͑Δ 2018/09/26 Fukuoka.rb #107 Rails LT ಛू ODA

    Hirohito

  2. ͜ͷ LT େձͰ https://cdg.connpass.com/event/89504/

  3. ͜Μͳ LT Λͨ͠ https://speakerdeck.com/oda/rubykaigi-2018-de-not- accepted-saretaneta

  4. ͦͷ LT ͷதͰ

  5. ͜Μͳωλ͕͋ͬͨ

  6. CLOMO MDM ͱ͸ʁ

  7. ΤΫεϙʔτػೳ

  8. ΤΫεϙʔτػೳ

  9. ΍ͬͨ͜ͱ

  10. ΍ͬͨ͜ͱ

  11. ΍ͬͨ͜ͱ

  12. ΍ͬͨ͜ͱ

  13. Α͘ݴΘΕΔ Rails ͷ
 ύϑΥʔϚϯεվળํ๏

  14. Active Record Λ 0.0 msec ʹ͠Α͏ʂ

  15. = Active Record Λ࢖Θͳ͍

  16. औΒΕΔબ୒ࢶ • ੜ SQL • Arel • ͦͷଞ

  17. ͜ͷ৔߹͸ੜ SQL Λબ୒ͨ͠

  18. ͜͜Ͱൃੜ͢Δٙ໰

  19. Ұͭͷ SELECT จͰ CSV શཁૉΛ औಘ͢Δ͜ͱ͸ Active Record Ͱ ࣮ݱͰ͖ͳ͔ͬͨͷ͔ʁ

  20. ͜Μͳهࣄ͕͋ͬͨʢ2013/06/03ʣ http://www.atmarkit.co.jp/ait/articles/1306/03/news057.html

  21. ͜Μͳهࣄ͕͋ͬͨʢ2013/06/03ʣ http://www.atmarkit.co.jp/ait/articles/1306/03/news057.html

  22. 2013/06/27
 Rails ver. 4.0 ϦϦʔε

  23. ͜ΕΛ౿·͑ͨ͏͑Ͱ

  24. ڪΒ͘Ͱ͖ͳ͍

  25. ڽͬͨ͜ͱΛ΍Ζ͏ͱ͢Δͱ
 Active Record ͕଍ᐫʹͳΔ
 ৔߹͕͋Δ

  26. ಛʹύϑΥʔϚϯεվળʹ
 ͓͍ͯ͸ݦஶͩͬͨ

  27. Active Record ͸ෆཁʁ

  28. NO!!!

  29. ෆཁͳΒ͹ Rails ͔Βফ͑
 ୅ସ ORM ͕࠾༻͞ΕΔ͸ͣ

  30. ͔͠͠ɺ࢖ΘΕଓ͚͍ͯΔ

  31. ͜Μͳهࣄ͕͋ͬͨʢ2013/06/03ʣ http://www.atmarkit.co.jp/ait/articles/1306/03/news057.html

  32. ػೳ < ن໿

  33. ػೳ < ن໿ CoC
 (Convention over Configuration)

  34. ·ͱΊ • Active Record ͸ CoC ʹج͍͍ͮͯΔ • Active Record

    ΛࣺͯΔ୅ঈ͸େ͖͍ • Active Record Λਂ͘஌Ε͹஌Δ΄Ͳ
 Active Record ͷํ͕ศརʢͳ͸ͣʣ

  35. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠