個人アプリをRails 6.0.0rc2に上げたらバグを踏んだのでRailsにIssueを投げた話

Transcript

1. ݸਓΞϓϦΛRails 6.0.0rc2
   ʹ্͛ͨΒόάΛ౿Μͩͷ
   ͰRailsʹIssueΛ౤͛ͨ࿩
   2019/11/15 ۜ࠲Rails #15
   γϩ(@shiroemons)
   

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2. 2019/11/05
   Rails 6.0.1ϦϦʔε
   

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3. ࠓ೔͸Rails 6.0.0 rc2ͷ࿩
   

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4. ࿩͢͜ͱɾ࿩͞ͳ͍͜ͱ
   •
   " RailsʹIssueΛ౤͛ͨܦݧஊͰ͢
   •
   # ٕज़తͳ࿩͸͋·ΓͰ͖ͯ·ͤΜ…
   

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5. ࣗݾ঺հ
   γϩ
   ɹɹ@shiroemons
   ɹɹshiroemons
   Rubyྺɿ1.8.7ʙ
   Railsྺɿ2.3ܥʙ
   ྑ͘ߦ͘RubyɾRailsίϛϡχςΟ
   ɾۜ࠲Rails (ୈ1ճ͔ΒϑϧࢀՃ)
   ɾStep-to-Rails-Expert.rb
   ɾGrow.rb
   

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6. ࣗݾ঺հ
   झຯɿݸਓΞϓϦʮ౦ํฤۂ࿥ʯ։ൃ
   ɾ౦ํΞϨϯδ޷͖
   ɾ޷͖ͳ౦ํΩϟϥ
   ɹɹᒵ
   ɾ޷͖ͳݪۂ
   ɹɹ༓ྶָஂɹʙ Phantom Ensemble
   

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7. ࠓճͷςʔϚ
   ݸਓΞϓϦΛRails 6.0.0rc2ʹ
   ্͛ͨΒόάΛ౿ΜͩͷͰ
   RailsʹIssueΛ౤͛ͨ࿩
   

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8. ࠓճͷςʔϚ
   ౦ํฤۂ࿥ΛRails 6.0.0rc2ʹ
   ্͛ͨΒόάΛ౿ΜͩͷͰ
   RailsʹIssueΛ౤͛ͨ࿩
   

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9. ౦ํฤۂ࿥ͱ͸ʁ
   • ౦ํฤۂ࿥ɹʙ Arrangement Chronicle
   https://touhou.arrangement-chronicle.com/
   • ౦ํProjectͷԻָͷΞϨϯδۂͷσʔλϕʔεαΠτ
   • ౦ํΞϨϯδΛݪۂɺαʔΫϧɺ൦෍ΠϕϯτɺΞʔςΟ
   ετผͰݕࡧ͢Δ͜ͱ͕Ͱ͖Δɻ
   • 2014೥3݄ࠒ։ൃελʔτ͠ɺಉ೥10݄ʹຊ൪ӡ༻։࢝
   

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10. https://touhou.arrangement-chronicle.com/
    

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11. ౦ํฤۂ࿥ Ruby / Rails Ver.
    • ։ൃ౰ॳ(2014೥03݄)
    • Ruby 2.1ܥ
    • Rails 4.1ܥ
    • ࠓ೥ͷ7݄຤͝Ζ
    • Ruby 2.5.3
    • Rails 4.2ܥ
    

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12. Rails 6.0.0rc2ʹ
    ্͛Δ·ͰͷܦҢ
    

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13. Rails 6ϦϦʔε͢Δ͔΋ʁPartyʹࢀՃ
    https://roppongirb.connpass.com/event/138291/
    

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14. ਆ଎͞Μ(@sinsoku_listy)ͷ
    εϥΠυ͕͖͔͚ͬ
    https://www.slideshare.net/sinsoku/rails6-159723148
    

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15. ౦ํฤۂ࿥΋Ξοϓσʔτͩ
    https://www.slideshare.net/sinsoku/rails6-159723148
    

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16. Ruby / Rails όʔδϣϯΞοϓ
    

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17. 2019೥7݄30೔
    Rails 4.2 → Rails 5.0
    8݄1೔
    Rails 5.0 → Rails 5.1
    8݄2೔
    Rails 5.1 → Rails 5.2
    8݄3೔
    Ruby 2.5.3 → Ruby 2.6.3
    7݄31೔
    Rails 6ϦϦʔε͢Δ͔΋ʁParty
    

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18. ϨσΟɾύʔϑΣΫτϦʔ
    ४උ͸׬શʹ੔ͬͨ
    

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19. Rails 6.0.0rc2ʹ্͛ΔݖརΛಘΔ
    

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20. ૣ଎Rails 6.0.0rc2ʹ͋͛ͯΈͨ
    

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21. όάΛ౿Ή
    

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23. ͲΜͳࣄ৅ʁ
    • GROUP BY + COUNT Ͱൃੜ
    • COUNTͷΤΠϦΞεͷʮ_ʯ(ΞϯμʔείΞ)͕2ͭʹͳ͍ͬͯΔ…
    • COUNTͷΤΠϦΞεΛORDER BYͰ࢖༻͍ͯͨ͠ΒΤϥʔʹͳͬͨ
    • # Rails 5.2.3Ͱ͸ɺൃੜͤͣ
    • " Rails 6.0.0rc2Ͱ͸ɺൃੜ͢Δ
    • Rails 6.0.0rc1͸ࢼ͍ͯ͠ͳ͍
    

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24. ௐࠪͯ͠Θ͔ͬͨ͜ͱ
    •
    # ୯७ͳGROUP BY + COUNT Ͱ͸ൃੜ͠ͳ͍
    •
    " COUNTΛόοΫΫΥʔτͰࢦఆ͢Δͱൃੜ
    ͢Δ
    

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25. ࠶ݱίʔυ࡞੒
    • ࣮ࡍͷίʔυΛࢀߟʹඞཁͳ΋ͷΛऔΓআ͖࡞੒
    

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26. ࣮ߦ݁Ռ
    

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27. ࣮ߦ݁Ռ
    

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30. ࠶ݱίʔυͰ͖ͨʂ
    Α͠ʂRailsʹIssueͩʔʂ
    

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31. ࠶ݱίʔυ͸Ͱ͖͚ͨͲ…
    

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32. ೰ΜͰͨͱ͜Ζʹٹੈओొ৔
    

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34. ૣ଎ ruby-jp ͷ #rails Ͱ૬ஊ
    

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35. ૬ஊͨ݁͠Ռ
    • ༷ʑͳҊΛ͍͖ͨͩ·ͨ͠
    • ࠶ݱίʔυͷΤϥʔΛλΠτϧʹ͢ΔͰ͍͍ͷ
    Ͱ͸ʁ
    • ࠶ݱίʔυ͕͋Δ͔Β఻͍͑ͨ͜ͱ͸Θ͔Δ
    

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36. https://github.com/rails/rails/issues/36867
    

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37. ruby-jp ѹ౗తײँʂ
    

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38. https://github.com/rails/rails/issues/36867
    

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39. #kamipo͞Μ͸͍͢͝ਓ
    

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41. ਆ͔Βͷ͓ݴ༿
    

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42. ·ͱΊ
    • kamipo͞Μ͸͍͢͝ਓ
    • ࠶ݱίʔυ͸࠷ڧ
    • RailsΨΠυ͸ςετίʔυ΍Issueʹ͍ͭͯ΋͔
    ͍ͯ͋Δ͔ΒҰಡ͓ͯ͘͠ͱྑ͍
    • ruby-jpʹ૬ஊ͢Δͷ͓͢͢Ί
    

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43. ࡢ೔(11/14) ʹ Rails 6.0.1ʹ
    Ξοϓσʔτ͠·ͨ͠
    

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44. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·͢
    

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