RubyとRailsの何が強いのか

Presented in Qiita Night Lightning Talks on 2022-12-02
https://increments.connpass.com/event/265957/

Transcript

1. RubyͱRailsͷԿ͕ڧ͍ͷ͔
   ෢ऀ থل
   

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2. Software Engineer, Senior Expert at WED Inc.
   
   
   ✓Ruby Committer / ex. FreeBSD Committer
   
   
   ✓Huginn (⭐37k) Co-maintainer
   
   
   ✓Hammerspoon (⭐9.8k) Contributor
   
   
   Writes Production Code In
   
   
   Ruby / TypeScript / Go / Lua
   ෢ऀ থل (Akinori Musha)
   @knu on GitHub and Twitter
   

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3. ୺తʹݴ͏ͱɺ
   
   
   ͱͯͭ΋ͳ͍ॊೈ͞Λ͍࣋ͬͯΔ
   RubyͱRailsͷڧΈͱ͸
   ཭ΕͯΈΔͱ࿀͘͠ͳΔڧΈΛৼΓฦΔ
   

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4. Rails͸ࠓ΋ੜ࢈ੑͷ࠷దղͷͻͱͭ
   • ϏϡʔΛ࣋ͨͳ͍APIαʔόͰ͋ͬͯ΋ڧΈ͕ͨ͘͞Μ͋Δ
   
   
   • Ή͠ΖϑϩϯτΤϯυ͸JS/TSʹ೚͍ͤͨ
   
   
   • RubyͱRails͸ϏδωεϩδοΫΛॻ͘ͷʹదͨ͠ݴޠͱϑϨʔϜϫʔΫ
   
   
   • جຊޠኮ͕๛෋ͰɺυϝΠϯʹదͨ͠৽͍͠ޠኮΛ૿΍͢ͷ΋ಘҙ
   
   
   • ΍ΓͱΓ͢ΔΦϒδΣΫτ͕΄΅ActiveRecord ModelΠϯελϯε΍RelationΦϒδΣΫτʹدΔͷ
   Ͱɺ΄΅self-documented, ݟΔ࣮૷͕ܾ·͍ͬͯΔͷͰಈతܕ෇͚ͷऑΈ͕໨ཱͪͮΒ͍
   
   
   • ActiveRecordͷྫ֎ͱrescue_fromʹΑΔิ଍ػߏ͕RESTͱ͔ͬͪΓϋϚ͍ͬͯΔ
   

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5. ActiveRecord͕ڧ͍
   • CRUD: ܕม׵΍όϦσʔγϣϯΛ׬උ
   
   
   • ৚݅ݕࡧɺJOINɺूܭɺࢥ͍ͷ··
   
   
   • ·ͱ΋ͳSQLΛ࡞ͬͯ͘ΕΔ
   
   
   • DRYͷపఈ
   
   
   • DBͷεΩʔϚͱstructఆٛΛೋॏ؅ཧ͠ͳ͍͍ͯ͘
   
   
   • default஋΋ಡΜͰ͘ΕΔ
   

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6. ActiveRecord Migration͕ڧ͍
   • ฒߦ։ൃ΍ॱෆಉͷσϓϩΠʹ଱͑Δόʔδϣϯ؅ཧ
   
   
   • ݸʑͷϚΠάϨʔγϣϯʹ͍ͭͯద༻ঢ়ଶ͕؅ཧ͞Ε͍ͯͯɺݸผʹup/down΋Մೳ
   
   
   • DDL΋DML΋ྲྀͤΔ
   
   
   • Ϗϡʔ΍ϑΝϯΫγϣϯͷྨ΋௥ՃgemͰεΩʔϚͷҰ෦ͱͯ͠؅ཧՄೳ
   
   
   • σʔλϕʔεΤϯδϯΛ࢖͍౗ͤΔʂ
   GoͰۤ࿑͠·ͨ͠😝
   

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7. Sidekiq͕ڧ͍
   • खܰʹδϣϒΛ࡞͙ͬͯ͢࢖͑Δ
   
   
   • PubSubͩͱTerraformͰτϐοΫΛ৽ઃͯ͠ϫʔΧʔʹsubscriberΛ༻ҙͯ͠…
   
   
   • ߴ౓ͳྲྀྔ੍ޚ΍ॏෳɾഉଞ੍ޚ͕ඞཁʹͳͬͯ΋༰қʹରԠ
   
   
   • Sidekiq Pro/EnterpriseΛങͬͯ΋͍͍͠ɺOSSͷιϦϡʔγϣϯ΋๛෋
   

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8. RSpec͕ڧ͍
   • ͳΜͰ΋ϞοΫͰ͖Δ
   
   
   • ΠϯλϑΣʔεΛ෼཭ఆٛͨ͠Γ͠ͳͯ͘΋͢΂͕ͯTest Ready
   
   
   • σʔλϕʔεͷΫϦΞͳͲͥΜͿRails+RSpecଆͰ໘౗Λݟͯ͘ΕΔ
   
   
   • E2EςετʢFeature specʣ΋ඪ४૷උ
   

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9. Rails console͕ڧ͍
   • ௐࠪ΍σʔλෆ੔߹ͷۓٸमਖ਼ɺόονॲཧͷϦϋʔαϧͳͲʹେ׆༂
   
   
   • ίϯύΠϧ΋σϓϩΠ΋ͳ͠ʹɺ೚ҙͷϏδωεϩδοΫΛݺͼग़ͤΔ
   
   
   • όονॲཧͷྨ͸֎෦αʔϏε࿈ܞ΋ଟ͘ɺϫϯγϣοτͩͬͨΓ΋ͯ͠ɺ೦ೖΓͳςε
   τΛॻ͍͔ͯΒ࣮૷͢Δίετ͕·ͬͨ͘ݟ߹Θͳ͘ײ͡Δ͜ͱ΋ଟ͍
   
   
   • ͦΜͳͱ͖ɺ։ൃ؀ڥ΍εςʔδϯά؀ڥͰRails console͔Β൓෮ࢼߦͯ֬͠ೝͰ͖Δ͜
   ͱ͸େ͖ͳ෢ث
   ͜Εຊ౰ʹݟա͕ͪ͝͠😳
   

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10. ୺తʹݴ͏ͱɺ
    
    
    ։ൃମݧͰޙΕΛऔ͍ͬͯΔ
    RubyͱRailsͷऑΈͱ͸
    ཭ΕͯΈΔͱ໭Γͨ͘ͳ͘ऑΈΛৼΓฦΔ
    

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11. Rubyͷ։ൃମݧ͸ϋοϐʔͳΜ͡Όͳ͍ͷʁ
    👍
    ҙਤΛࣗ༝ʹදݱͰ͖ΔɺറΓ͕গͳ͍
    
    
    • ݴޠͷ੍໿ճආͷςΫχοΫ͕ཁΒͳ͍
    
    
    • ʮͨΊͷʯσβΠϯύλʔϯɺΠϯλʔϑΣʔε͕ͳ͍
    
    
    👎
    ੍໿Λදݱɺڧ੍͢Δޠኮʹ๡͍͠
    
    
    • ಡΈखʹͱͬͯͷώϯτɺΠϯλϓϦλʹͱͬͯͷώϯτ
    
    
    • ॻ͖खͷϛε๷ࢭ
    

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12. ॳΊͯ͞ΘΔਓʹ΋΍͘͞͠…
    • ϕʮRubyͰ͸͜Μͳ෩ʹॻ͚ΔΑʯ
    
    
    • ॳʮ͍͢͝ɺ؆ܿͰ͔͍͍ͬ͜Ͱ͢Ͷʂʯ
    
    
    • ॳʮʢͰ΋ଞͷݴޠʹԠ༻ޮ͔ͳ͍஌ࣝͩ…ʣʯ
    
    
    • ॳʮͥΜͥΜิ׬ީิ͕ग़ͯ͜ͳ͍Μ͚ͩͲΈͳ͞ΜͲ͏΍ͬͯઃఆͯ͠ΔΜͰ͔͢ʁʯ
    
    
    • ϕʮ͍͢͝ϓϥάΠϯઃఆͱ͔ಛʹͳͯ͘ɺΈΜͳۭͰॻ͍ͯ·͢…
    

    ͦΕ͔RubyMine࢖ͬͯΈΔʁʯ
    
    
    • ॳʮʢࢧԉͳ͠Ͱॻ͘ͷ·͔͡…ʣʯ
    TypeScript/Go/Kotlin͸ݴΘͣ΋͕ͳɺ΋͸΍Python΋PHP΋ܕΞ
    ϊςʔγϣϯΛॻ͘͠ఆٛδϟϯϓΛ͹Μ͹Μ࢖͏ͷ͕;ͭ͏😇
    

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13. LinterΛࣂ͍׳Β͢ͷ͕େม
    • RubocopͷσϑΥϧτઃఆ͕ͭΒ͍
    
    
    • ίϛϡχςΟʔϕʔεͱ͍͏ͷ͕ۂऀͰɺ௚ͤͱݴΘΕΔ͕ཧ༝͕ෆ໌ͳͷͰ࠷ॳ͔Β
    ܗ֚Խ͍ͯ͠Δ
    
    
    • ࣗಈϑΥʔϚολʔͱͯ͠͸ಈ࡞͕஗͗͢Δ
    
    
    • อଘ࣌ࣗಈ੔ܗʹͯ͠ؾܰʹηʔϒͰ੔ܗɺͱ͍͕ͨ͠਺ඵֻ͔ΔͷͰମݧ͕ྑ͘ͳ͍
    

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14. ܕ෇͚ରԠΛ΋ͬͱ͕Μ͹Γ͍ͨ
    • ܕ͸΋͸΍ݱ୅ϓϩάϥϚʔͷϝϯλϧϞσϧʹ͍ࠜͯ͟͠Δ
    
    
    • Ή͠ΖίʔυͷҙਤͷҰ෦ͱͯ͠ܕΛॻ͖͍ͨͰ͟͝Δ
    
    
    • ผϑΝΠϧ؅ཧ͸͠ΜͲ͍.rbs (.rbi)
    
    
    • ΤσΟλͰΠϯϥΠϯදࣔɾฤूͰ͖Ε͹؇࿨ʁ
    
    
    • SorbetʹΑΔΞϊςʔγϣϯ΋DRYʹͳ͍ͬͯͳ͍
    
    
    • ϝιουͷԾҾ਺ɺಛʹΩʔϫʔυҾ਺ͷೋ౓ॻ͖͕ͩΔ͍
    

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15. ͦΕͰ΋…
    

    RubyͱRails͸ڧ͍
    มԽΛแ༰͢Δྗ
    

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16. ͜Ε͕మ൘ߏ੒✨
    RailsϞϊϦεͷपΓʹϚΠΫϩαʔϏε
    • ߴϨΠϠʔΛ୲͏ʹ;͞Θ͍͠ॊೈੑ
    
    
    • GoͰ֎෦γεςϜ࿈ܞόοΫΤϯυΛॻ͍ͯRails͔ΒgRPC
    
    
    • PythonͰը૾ॲཧαʔϏεΛॻ͍ͯSidekiq͔Β࣮ߦ
    
    
    • LP΍ಛઃαΠτ͸Nuxt.js΍FreshͰָ͘͠ॻ͘
    

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17. https://wed.company/recruit
    WED Inc. is Hiring!
    WED͸Ұॹʹ։ൃ͢Δ஥ؒΛ୳͍ͯ͠·͢ʂ
    

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