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Rails歴==エンジニア歴の私の学び方 #omotesandorb #37 LT
Koji Mikami
August 02, 2018
Programming
0
71
Rails歴==エンジニア歴の私の学び方 #omotesandorb #37 LT
#omotesandorb #37 のLT資料です。Railsを書いて3年経ったので自分の学び方を振り返りました。Railsだけでなく何にでも応用できる考え方です。
Koji Mikami
August 02, 2018
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Transcript
Railsྺ==ΤϯδχΞྺ ͷࢲͷֶͼํ Thu, 02 Aug 2018 @mikaji #omotesandorb #37
ࣗݾհ • GitHub: @mikaji • Twitter: @mikaji_jp • ձࣾ: גࣜձࣾϦΫϧʔτϚʔέςΟϯάύʔτφʔζ
৽ଔ2 • Railsྺ: 3 (Rails3~5ܥ) • ॳ දࢀಓ.rb!!☺ • ࠷ۙYouTuberͬͯ·͢ https://www.youtube.com/c/mikaji
΅͘ͱ Ruby RailsͷؔΘΓΛ ͠·͢
͢͜ͱ • ະܦݧ͔ΒͲ͏ֶΜͰ͍͔ͬͨ • ࣮ମݧʹΑΔֶͼํͷྑ͔ͬͨɾѱ͔ͬͨ • ࠷ۙͷΩϟονΞοϓํ๏
ରऀ • WebΞϓϦΛॻ͍ͨ͜ͱ͕ͳ͍ਓ • RailsΞϓϦΛॻ͍ͨ͜ͱ͕ͳ͍ਓ • ݸਓͰܦݧ͋Δ͚ͲϓϩδΣΫτͰRailsΞϓ Ϧॻ͍ͯͳ͍ਓ
ֶੜ࣌ • ใֶΛઐ߈͍͕ͯͨ͠WebΞϓϦॻ͍ͨ͜ ͱͳ͍ • ݚڀࣨͰϚΠίϯ͍ͬͨ͡Γ౷ܭֶֶΜͩΓ • ॻ͍ͯͨݴޠ: C, C++,
Java, Scheme, Prolog, Haskell, etc… Rubyॻ͍ͨ͜ͱͳ͔ͬͨ
1. Θ͚͕Θ͔Βͳͯ͘ Rails TutorialΛ पճϓϨΠ͢Δ
Rails TutorialΛແ৺ͰΔ • MVCͷׂ͕Θ͔Βͳͯ͘Δ • ηογϣϯཧ͕Θ͔Βͳͯ͘Δ • ͱʹ͔͘ॻ͘͜ͱ͕େࣄ ΅͘3पͰ ྗਚ͖·ͨ͠
2. WebΛࢧ͑Δٕज़Λ ಡΉ
ಡΈ໊͍͢͠ஶ Ͱ͢
WebΛࢧ͑Δٕज़ͷྑ͍ͱ͜Ζ • HTTPͷΈ͕Θ͔Δ • Railsͱਂ͍ؔͷRESTͷ֓೦Λ͓͑͞ΒΕΔ • RailsͷϦιʔεઃܭͷΠϝʔδ͕͍ͭͯ͘Δ
3. RailsͬͯΔϓϩδΣ ΫτʹೖΔ
RailsͬͯΔϓϩδΣΫτʹೖΔ • MVCͷׂΛҙࣝ͢Δ • ActiveRecordʹ৮ΕΔ ϩάʹు͔ΕΔΫΤϦͷΈཱͯோΊΔͱ ߹ΘͤͯSQLຊ… • ଞਓͷίʔυͷॻ͖ํ͕Θ͔Δ ʢ͋ΔػೳΛ࡞Γ͍ͨͱ͖Ͳ͏࣮͍͔ͯ͘͠ʣ
4. ϝϯλʔΛݟ͚ͭΔ
ϝϯλʔ͕େͳཧ༝ • ࠓͷ͕ࣗཧղͰ͖͍ͯͳ͍ͱ͜Ζ͕Θ͔Δ ϨϏϡʔͰϘίϘίʹ͞ΕΔͷྑ͍ܦݧ • ઃܭʹ໎ͬͨͱ͖ٞͰ͖Δ • ϖΞϓϩͰ͖Δ ΅͘ͷܦݧ্ͬͱޮՌ͕͋Γ·ͨ͠
5. Railsͷ͖ͳͱ͜Ζ Λݟ͚ͭΔ
Railsͷ͖ͳͱ͜Ζ • ֤ϨΠϠͷׂ͖Ε͍ͳઃܭɺΠϯλϑΣʔεʹڵຯΛ࣋ͭΑ͏ʹ ͳͬͨ ⏩ͬͱΓ͍ͨʂ PofEAADDDͷཧղ͕૿͢ rails newͨ͠ͱ͖ʹੜ͞ΕΔͷҎ֎ͷύλʔϯΛΔ (FormObject, ServiceObject
…) ৄ͘͠#railsdmͰLTͨ͠ࢿྉΛ…ʂ • Ͳ͜Ͱྑ͍ͷͰ͖ͳ෦Λݟ͚ͭΔͱ͙ͬͱֶͼ͕ ਂ͘ͳΓ·͢
6. ࠷৽ͷRailsΛ͏
ใʹຖϙετ͞ΕΔ
࠷ۙͷΩϟονΞοϓํ๏ • ϠΪψϚ৽ฉΛಡΉ (#railsdmͰऔΓೖΕͨ) ຖslackʹྲྀͯ͠ࣄલͷ՝ʹ͍ͯ͠·͢ • RailsͷϦϙδτϦͷissue͑ΔͱϕλʔʢͰ͖ ͯͳ͍ʣ • ࠷ॳͬͯΔgemͷιʔείʔυோΊΔͰྑ͍
ͱࢥ͍·͢(OSSʹͭͳ͕Γ·͢)
·ͱΊ • ॳΊͱʹ͔͘ॻ͖·͠ΐ͏ • ଞਓΛר͖ࠐΈ·͠ΐ͏ʢϝϯλʔɺษڧձͰ ൃදʣ • ৗʹมԽʹରԠ͍͖ͯ͠·͠ΐ͏