メドピアの輪読会

by motsat

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αʔϏεΛ Ruby / Rails Ͱ੒ ௕ͤ͞ΔͨΊʹ΍ͬͨ͜ͱ

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ࣗݾ঺հ ɹɾ໊લ ɹɹࠤ౻ ݩل ɹɾϝυϐΞྺ ɹɹ 2017/9 ʙ WebΤϯδχΞɹɹ ɹɹʢ࠷ۙ͸ElasticsearchɺAWS SNSͰPush௨஌पΓʣ ɹɾͦͷલ ɹɹ- Ruby on Rails/ C++ (ιʔγϟϧήʔϜ) ɹɹ- PHP Maple/ΦϨΦϨ (ձһ੍ಈըܥαʔϏε)

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ϝυϐΞͷྠಡձ

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લஔ͖ ϝυϐΞͷݱঢ়

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ҩࢣઐ༻αΠτʮMedPeerʯ

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Ruby on Rails (৽؀ڥ)ͱ PHP on ಠࣗϑϨʔϜϫʔΫ(چ؀ڥ) ͕ڞଘ

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ฐࣾϒϩά: ɹϨΨγʔͳಠࣗϑϨʔϜϫʔΫ͔Β୤٫ͯ͠Rails΁ঃʑʹҠߦ ͍ͯ͠Δ࿩ http://tech.medpeer.co.jp/entry/2017/01/31/004227

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PHP͔ΒRuby on Rails΁ͷ Ҡߦελʔτ͸໿1.5೥લ

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RubyΤϯδχΞ : 10ਓத2ਓ

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Ҡߦͷҝʹ ɾPHP࢖͍ͬͯΔਓ͕RubyΛ࢝ΊͨΓ ɾRubyະܦݧऀ͕ೖͬͨΓʢܦݧऀ΋ೖͬͨΓʣ

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Ruby/Railsͷܦݧগͳ͍ਓ͔Βଟ͍ਓ·Ͱ ෯޿͍ҝɺRuby/RailsΛϝΠϯʹ੒௕ͷҝ ͷऔΓ૊ΈΛߦ͍ͬͯ·͢ɻ

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෱ԬRubyձٞ: ɹϝυϐΞͷશྗRailsԽͷऔΓ૊Έࡽ͠·͢! ( by CTO fukumura ) https://speakerdeck.com/fukumura/metohiafalsequan-li- railshua-falsequ-rizu-mishai-simasu

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ओͳऔΓ૊Έ ɾίʔυϨϏϡʔʢRailsܦݧଟ͍ਓͷϨϏϡʔʣ ɹ2017೥ʹ࢝ΊͨϝυϐΞΤϯδχΞνʔϜͷ৽͍͠औΓ૊Έʹ͍ͭͯ ɹhttp://tech.medpeer.co.jp/entry/2017/12/27/180000 ɾ։ൃ߹॓ ɹ։ൃ߹॓!?ͦΕͳΒϖϯγϣϯͰ͠ΐ!! ʙ܈അݝΈͳ͔Έொ΁ͷϝυϐΞ։ൃ߹॓೔ࢽʙ ɹ http://tech.medpeer.co.jp/entry/2017/12/06/110000

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ओͳऔΓ૊Έ ɾKPT಺ͰؾʹͳΔϨϏϡʔΛৼΓฦΔ ɾಡॻձʢྠಡձʣ

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ྠಡձ   ɾͲ͏΍͍ͬͯΔ͔ ɾྑ͔ͬͨ/ѱ͔ͬͨࣄ

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ྠಡձͱ͸ ਓʑ͕ू·ͬͯɺಉ͡ڭՊॻͳͲͷຊΛಡΈɺͦͷ ಺༰ʹ͍ͭͯҙݟΛަΘ͢͜ͱΛҙຯ͢Δޠ

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Ұਓಡॻͷྑ͍ॴ ɾ޷͖ͳ࣌ʹಡΊΔ ɾ޷͖ͳ৔ॴͰಡΊΔ ɾ޷͖ͳϖʔεͰಡΊΔʢௐ΂ͨΓɺࢼ ͨ͠Γ ɾ஌ͬͯΔॴ͸ඈ͹ͤΔ

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ྠಡձ > Ұਓͷಡॻ ͱ͍͏Θ͚Ͱ͸ͳ͍

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ྠಡձͱ͸ ਓʑ͕ू·ͬͯɺಉ͡ڭՊॻͳͲͷຊΛಡΈɺͦ ͷ಺༰ʹ͍ͭͯҙݟΛަΘ͢͜ͱΛҙຯ͢Δޠ (weblioΑΓ) →ྠಡձͷதͰ΋ɺಛʹ͜ͷதͰྑ͔ͬͨ෦෼ͷ ࿩

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ϝυϐΞͰͷ΍Γํ ຊ͝ͱʹ΍Γํม͑ͨΓ͍ͯ͠Δ͕ɺ ɾ1ਓ1߲໨ɺԻಡ͢Δ ɾಡΜͩॴͷ࣭໰΍ٞ࿦ʢແ͍࣌΋͋Δʣ ɾ౰൪੍Ͱൃදऀ͕ઌʹ಺༰·ͱΊͨΓ ɹˠ΍Γํ͸·ͩ໛ࡧத

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༷ࢠ

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ϝυϐΞͷΑ͏ʹɺ ɾRuby/Railsͷܦݧ →·ͪ·ͪ ɾϝυϐΞྺ → ·ͪ·ͪ ɾಉ͡ιʔείʔυʢϦϙδτϦʣ৮Δࣄ͕ଟ͍ ͱ͍͏ঢ়گͰɺ ྠಡձܗ͕ࣜྑ͔ͬͨͳͱࢥ͏ࣄྫͷ঺հ

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ྫ1 RailsGuides  https://railsguides.jp/ ʢຊͱݴ͏͔αΠτͰ͕͢ʣ

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ͳΜͰ͜ͷຊʹ͔ͨ͠ ɾRailsͷػೳΛମܥతʹΘ͔Γ΍͘͢঺հ͍ͯͯ͠ɺ ܦݧ(গ)ͳ͍ਓʹ΋ͱ͖ͬͭ΍͍͢

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͜ͷຊͷྠಡձͰ͋ͬͨٞ࿦

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Action Controller ͷ֓ཁ (8.ϑΟϧλ) ٞ࿦΍࣭໰ ʮControllerͷﬁllterɺonly΋͘͠͸exceptͰࢦఆ͢Δ৔ ߹ɺͲͪΒΛ࢖͏ʁʯ ʮͱΓ͋͑ͣ҆શଆʹ౗ΕΔํ͕ྑͦ͞͏ʯ ɹ

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ɾܦݧগͳ͍ਓ ɹػೳ + ࢖͏ஈ֊ʹͳͬͯ໎͏෦෼ΛઌʹҙࣝͰ͖ ͨ ɾͦΕҎ֎ͷਓ ɹνʔϜ಺Ͱ͸Ͳ͏͢Δ͔ͷҙࣝΛ߹ΘͤΔ͜ͱ͕ Ͱ͖ͨ ɹ

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ྫ2 Everyday Rails - RSpec ʹΑΔRailsςετೖ໳

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ͳΜͰ͜ͷຊʹ͔ͨ͠ ςετΛRSpecͰॻ͍͍͕ͯͨɺ ɾςετͷཻ౓͕ҧͬͨΓ ɾਖ਼͍͠ॻ͖ํͰ͖ͯΔ͔ո͍͠ʢଞͷΛਅࣅ͍ͯΔ͚ͩʁʣ ͱ͍͏໰୊఺ͷղফͷҝ

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͜ͷຊͷྠಡձͰ͋ͬͨٞ࿦

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7.ίϯτϩʔϥεϖοΫͷΫϦʔϯΞοϓ ٞ࿦΍࣭໰ ʮShared Examples ɺॏෳഉআͰ͖ͯྑ͍ʯ ʮॲཧ͕ݟ͑ʹ͘͘ͳΔ໘΋͋ΔɻݟͮΒ͘ͳΒͳ͍͔΋ߟ͑ ͯ࢖ͬͨํ͕ྑ͍ʯ

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ɾܦݧগͳ͍ਓ ɹػೳ+ܦݧऀͷͭΒΈΛઌʹ஌Εͨ ɾͦΕҎ֎ͷਓ ɹνʔϜ಺Ͱ͸Ͳ͏͢Δ͔ɺҙࣝ߹ΘͤͰ͖ͨ

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?.??(Ͳͷষ͔ͩͬͨ๨Ε·ͨ͠ʣ ٞ࿦΍࣭໰ ʮRakeλεΫ΋ςετॻ͘ʁʯ ʮmodel(౳)ʹϩδοΫҠৡͯͦ͠ΕΛݺͼग़͚ͩ͢ʹ ͍ͨ͠ʯ ʮͰ΋typoνΣοΫ͚ͩͷҝͰ΋ςετ͋ͬͨ΄͏͕҆ ৺ʯ

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ܦݧଟ͍/গͳ͍ݶΒͣɺνʔϜ಺Ͱ ͳΜͱͳ͘;Θͬͱ͍ͯͨ͠ॴ͕࿩߹ ͑ͨɻ·ͨɺͦͷߟ͑Λڞ༗Ͱ͖ͨɻ

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ྫ3ʣΦϒδΣΫτࢦ޲ઃܭ ࣮ફΨΠυͷ৔߹

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ͳΜͰ͜ͷຊʹ͔ͨ͠ ɾRailsҠߦ͕গ͠ਐΈɺΦϒδΣΫτࢦ޲ ઃܭతͳ෦෼Ͱ໰୊఺͕ݟ͖͑ͯͨͨΊ

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͜ͷຊͷྠಡձͰ͋ͬͨٞ࿦

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ୈ̑ষɹμοΫλΠϐϯάͰίετΛ࡟ݮ͢ Δ ٞ࿦΍࣭໰ ʮμοΫλΠϐϯάා͍ɻJavaͳΒΠϯλʔϑΣʔεͱ͔͋Δͷʹʯ ɹɹɹɹɹ

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ɾPHP/Ruby ܦݧऀ ɹ੩తܕ෇͚ݴޠͷܦݧऀͱײ֮ͷࠩΛײ͡Εͨ ɾJava ܦݧऀ ɹಉ͡ΦϒδΣΫτࢦ޲Ͱ΋ɺ࣮૷ํ๏ʹ͔ͳΓࠩ ͕͋Δ͜ͱ͕Θ͔ͬͨ

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4.5 σϝςϧͷ๏ଇ σϝςϧͷ๏ଇ͸ɺΦϒδΣΫτΛૄ݁߹ʹ͢Δ ͨΊͷن໿ͷू·Γɻ͜ͷதͰҕৡ΋ग़ͯ͘Δɻ

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4.5 σϝςϧͷ๏ଇ ٞ࿦΍࣭໰ ʮҕৡɺActiveRecordͰ΍ΔͳΒdelegate͕͋Δʯ ʮdelegateɺϧʔϓͰN+1͕ൃੜ͢ΔՕॴΛݟམͱ͠ ΍͘͢ͳΔ͜ͱ΋ʯ

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ຊ͸RubyϝΠϯͳͷͰRails΍ActiveRecordʹ͍ͭͯ͸ ৮Ε͍ͯͳ͍ ͕ɺ RailsΞϓϦ։ൃϝϯόʔͰͷಡॻձͩͬͨͷͰݱ৔Ͱ࢖ ͏࣌ͷ࢖͍ํ΍ؾΛ͚ͭΔϙΠϯτΛઌʹ࿩͢͜ͱ͕Ͱ ͖ͨɻ

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ୈ6ষ ܧঝʹΑͬͯৼΔ෣͍Λ֫ಘ͢Δ ٞ࿦΍࣭໰ ʮܧঝͰඍົͳڞ௨Խ͕͞ΕͯͭΒ͍ॴ͕hogeॲཧʹ͋ Δʯ ʮڞ௨Խ΋ͨͩιʔείʔυ͕ಉ͔ͩ͡Βͬͯ΍ͬͯ͘ͱޙ ͰٯʹͭΒ͘ͳΔʯ

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ಉ͡ιʔείʔυΛ৮Δϝϯόʔ͔Βɺ ۩ମతͳྫͷڞ༗΍ͱະདྷͷͭΒΈ๷͙͖͔͚͕ͬ Ͱ͖ͨɻ

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͜Μͳײ͡ͰɺྠಡձΛ͢Δ ࣄͰຊͷ಺༰Ҏ֎ʹ͍Ζ͍Ζ ಘΔ΋ͷ͕͋Γ·ͨ͠

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ྠಡձΛଓ͚ΒΕΔ؀ڥ

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ɾ࣌ؒ ɹۀ຿࣌ؒ಺ɻਫ༵10:30ʙ11:30 ɹۀ຿ޙ΍ேૣ͗͢ΔͱɺͨͿΜࢀՃऀݮΔɻ ɹશһͷͨΊͷऔΓ૊ΈͰͳ͘ͳͬͯ͠·͏ɻ

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ɾຊ୅ ɹձࣾܦඅɻ1ਓ1࡭ɺిࢠॻ੶Ͱ΋࣮෺Ͱ΋OKɻ ɹܦඅͰམͱͤͳ͍ͱΈΜͳͰಉ͡ຊΛݟΔͱ͍͏ ϋʔυϧ্͕Δɻ

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ձࣾͷཧղ͕͋ͬͯͦ͜ ಛʹ ɾۀ຿࣌ؒ಺ʹ΍Δ͜ͱ ຊಡΉͷ͕ۀ຿ͳͷʁͱɺΤϯδχΞҎ֎͕ී௨ʹٙ໰Λײ͡Δؾ͕͢Δɻ ɹˠʮಡॻձ/ྠಡձʯ໊ͬͯલ͕ۀ຿ײग़ʹ͍͘ͷͰʮγεςϜ։ൃख๏ ʹ͍ͭͯͷhogeʯͷΑ͏ͳ໊લʹͨ͠Γۀ຿ײग़͢ͷ͸͋Γ͔΋ʁ

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PRϖʔδ ϝυϐΞ͸ΤϯδχΞ׆ಈʹཧղ͋ΔձࣾͰ͢ɻ CTO fukumuraʮؤுͬͯܦӦਞઆಘͯͨ͠Ͷͬͯੲͷಉ྅͔ΒݴΘΕͨɻ ͦΜͳʹؤுͬͯͨͭ΋Γແ͔ͬͨʯ ↓࠷ۙͷ࣮੷ ɹRuby25प೥ه೦ΠϕϯτɺܦඅͰߦ͚·͢ʢϝυϐΞ΋εϙϯαʔ΍ͬ ͯ·͢ʣ

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ٞࣄ࿥ ɹ͋ͬͨํ͕ྑ͍ɻ ʢձ࿩ͷதͰग़ͨࢀߟURLͳͲ΋SlackʹషͬͨΓ͍ͯ͠·͢ʣ ɹɾܽ੮ऀ͕࣍ʹࢀՃ͠΍͍͢Α͏ʹ ɹɾ๨Εͳ͍Α͏ʹ ɹɾະདྷͷϝϯόʔʹ΋఻ΘΔΑ͏ʹ ɹɾϒϩάωλ

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ࢀՃϝϯόʔ ͓୊ʹରͯ͠ɺܦݧଟ͍ਓ͕͍ͨํ͕ྑ͍ ɾ࣭໰ɺٞ࿦Λͦͷ৔ͰղܾͰ͖Δ ɾຊ͚ͩͩͱແ͍ܦݧΛઌʹ࿩ͤΔ ʢϝυϐΞ͸ɺٕज़ސ໰willnet͞ΜʹඞͣࢀՃͯ͠ ΋Β͍ͬͯ·͢ʣ

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ͲΜͳຊ͕ྑ͔͔ͬͨʢྑͦ͞͏͔ʣ 1.ͦͷ৔Ͱ΋͋Δఔ౓ཧղͰ͖Δ ɹ༧श͖͍ͯͯ͠ͳ͍લఏɻࢀՃϋʔυϧ্͛ͳ͍ɻ

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ͲΜͳຊ͕ྑ͔͔ͬͨʢྑͦ͞͏͔ʣ   2.αϯϓϧίʔυ͕ϝΠϯͰͳ͍ ɹ௕͍αϯϓϧίʔυ͕͋Δͱɺͦ͜ͰཧղͰ͖Δਓ/Ͱ͖ͳ͍ਓ͕Ͱ͖ͯ ΍͍͢ɻ ɹࢀߟఔ౓ʹॻ͍ͯ͋Δ΋ͷ΍ɺRails GuidesΈ͍ͨʹ୹ͯ͘ཧղ͠΍͍͢ ΋ͷ͸େৎ෉ɻ

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ͲΜͳຊ͕ྑ͔͔ͬͨʢྑͦ͞͏͔ʣ 3.಺༰͕ຖճ׬݁͢Δ΋ͷ ɹܽ੮ɺهԱ͕ඈͿͳͲɺલͷ಺༰͕಄ʹͳ͍ͱ࣍ͷཧղ͕೉͍͠ɻ ɹʮ ΦϒδΣΫτࢦ޲ઃܭ࣮ફΨΠυʯ΋ɺ͖͍ͭ෦෼͸͋Δɻ

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ͲΜͳຊ͕ྑ͔͔ͬͨʢྑͦ͞͏͔ʣ 4.ͦͷ࣌ඞཁͳ΋ͷ ɹRailsҠߦ౰ॳ͸RailsΨΠυɺগ͠ܦͬͯઃܭʹվળ఺͕ݟ͖͑ͯͨΒ ɹʮΦϒδΣΫτࢦ޲ઃܭ࣮ફΨΠυʯͳͲɻ ɹཧղ͠ͳ͍ͱ·͍ͣ > ཧղ͍ͨ͠

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՝୊ ɾਓ͕૿͑Δͱո͍͠ ɹࠓ͸10ਓఔ౓͕ͩɺਓ͕૿͑Δͱࣗ෼͕ಡΉ ॱ൪΋ճΓͮΒ͘ۓுײແ͘ͳΓձ࿩΋ͮ͠Β ͘ͳΔؾ͕͢Δ ɹ

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՝୊ ɾ໊લ͕ී௨͔ͩΒม͍͑ͨ ɹʮྠಡձʯΛΤοδ͕ޮ͍ͨײ͡ʹ

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·ͱΊ ɾҰਓಡॻ΋ྑ͍͚Ͳྠಡձ΋͍͍ ɾຊʹॻ͍ͯ͋Δ͜ͱҎ֎͕ಘΒΕͨ ɹ- ܦݧʢऀͷ੠ʣ ɹ- ҧ͏ࢹ఺ ɹ- ࣗ෼ͨͪ͸Ͳ͏͍͔ͯ͘͠ ɾձࣾͷཧղʢۀ຿࣌ؒɺ͓ۚʣඞཁ

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠