railsdm2019 - Speaker Deck

railsdm2019

by Takatoshi Maeda

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αʔϏεΛ੒௕ͤ͞ΔԾઆݕূจԽͷ࡞Γํ @takatoshi-maeda Rails Developers Meetup 2019 2019/03/22

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Agenda 1. ࣗݾ঺հ / τΫόΠͷ঺հ 2. ΠϯτϩμΫγϣϯ 3. ྑ͍Ծઆݕূͬͯʁ 4. νʔϜͰͷऔΓ૊Έํ 5. ·ͱΊ

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ର৅ͱͯ͠ߟ͑ͨํ 1. αʔϏεɾϓϩμΫτͷ࢓༷Λߟ͑ͳ͕Β࢓ࣄΛ͍ͯ͠Δํ • ࣗ෼ͷ࢓ࣄͷ݁Ռ͕ɺ࢖ͬͯ͘Ε͍ͯΔਓʹͱͬͯͲΕ͚ͩخ͍͔͠஌Γ ͍ͨํ 2. ϓϩμΫτνʔϜ΍ϓϩμΫτͦͷ΋ͷΛϦʔυɾϚωδϝϯτ͍ͯ͠Δํ • ଌΓํ΍ߟ͑ํͷώϯτʹͳΔ(͔΋͠Εͳ͍)

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ࣗݾ঺հ • લా ୎ढ़(@takatoshi-maeda) • גࣜձࣾτΫόΠɹ औక໾CTO • RailsΞϓϦ։ൃ / Πϯϑϥߏஙɺӡ༻ / ϓϩμΫτϚωʔδϝϯτ etc… • Railsྺ͸7೥ • ॳΊͯ৮ͬͨόʔδϣϯ͸3.2 • ޷͖ͳπʔϧ͸stackprof

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ࣗݾ঺հ - τΫόΠʹ͍ͭͯ • ಛച৘ใɺνϥγ৘ใΛ஍Ҭͷੜ׆ऀ ʹ഑৴͢ΔαʔϏε • খചళฮ༷͔Βݟͨͱ͖ʹ͸ϚʔέςΟ ϯάαʔϏε • େ໨ඪ͸͓ళͷࠓ೔͍͍ͱ͜ΖΛ୔ࢁ ͷਓʹݟͯ΋Β͏͜ͱ

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ࠓ೔͓࿩͢Δ͜ͱ

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• ΠϯλʔωοταʔϏεͷ։ൃʹؔΘΔԾઆݕূɺվળʹ͍ͭͯͷ͓࿩ • ๻ͨͪ͸ৗʹΰʔϧʹରͯ͠Ұ௚ઢʹ޲͔͍͍ͨ

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• ͔͠͠ݱ࣮͸؁͘ͳ͍ • ਅ͙ͬ͢ਐΜͰΔͭ΋ΓͰ΋ࢥͬͨҎ্ʹӈԟࠨԟͯ͠ΊͪΌΊͪΌʹͳΔ

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• ਖ਼͍͠ϧʔτ͸੺͍ํ • ෺ཧͰݟ͑Δొࢁͷਖ਼͍͠ϧʔτ Ͱ͢Β೉͍͠ • ๻ͨͪ͸ৗʹΰʔϧʹରͯ͠Ұ௚ ઢʹ޲͔͍͍ͨ

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• Ͱ͸ɺண࣮ʹ͍͍ۙͮͯͨ͘Ίʹ͸Ͳ͏͢Δ͔ʁ • ࠓ೔͸ͦͷͨΊͷ࿩Λ͠·͢

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BUILD LEARN MEASURE IDEA PRODUCT DATA 1. ͍͍Ծઆݕূͬͯʁ 2. νʔϜͰͷऔΓ૊Έํ Ծઆݕূ จԽ

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͍͍Ծઆݕূͷ৚݅ ɹ1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ɹ2. ఺ͱઢΛ༻͍ͨݕূ ɹ3. ϓϩμΫτʹด͡ͳ͍ࢹ໺

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1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ɹ1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ɹ2. ఺ͱઢΛ༻͍ͨݕূ ɹ3. ϓϩμΫτʹด͡ͳ͍ࢹ໺

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1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ஍Ҭ͓ళ·ͱΊϖʔδ ϝʔϧϚΨδϯ ݕࡧΤϯδϯ ϒοΫϚʔΫ τοϓϖʔδ ͜͜Λվળ͢Δͱ ૿͑Δ͸ͣͩʂ GOAL: ͓ళϖʔδϔ๚ΕΔਓΛ૿΍͍ͨ͠ʂ

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1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ஍Ҭ͓ళ·ͱΊϖʔδ ϝʔϧϚΨδϯ ݕࡧΤϯδϯ ϒοΫϚʔΫ τοϓϖʔδ GOAL: ͓ళϖʔδϔ๚ΕΔਓΛ૿΍͍ͨ͠ʂ 10 1 5 4 2 1 1. ࠷΋ࠩ෼͕େ͖͍ͱ͜Ζʹ஫໨͢Δ

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1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ 1. ͱ͋Δ஍Ҭʹ͋Δ͓ళͱ͍҆΋ͷΛ஌Γͨ ͍͕ 2. ͓ళ͕132ళฮ΋͋ͬͯɺ஍ҬΛ͜ΕҎ্ ࡉ͔͘ߜΓࠐΊͳ͍ͷͰɺ஌Γ͍ͨ৚݅Ͱ͓ ళΛ஌Γ͍ͨϢʔβʔ͸໎͍ͬͯΔ 3.ߜΓࠐΈػೳΛ࣮૷͢Δ͜ͱͰɺࣗ෼͕ؾ ʹͳΔϖʔδΛ஌͓ͬͯళϖʔδʹߦͬͯ͘ ΕΔ͸ͣͩʂ

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1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ஍Ҭ͓ళ·ͱΊϖʔδ ϝʔϧϚΨδϯ ݕࡧΤϯδϯ ϒοΫϚʔΫ τοϓϖʔδ ͜͜Λվળ͢Δͱ ૿͑Δ͸ͣͩʂ GOAL: ͓ళϖʔδϔ๚ΕΔਓΛ૿΍͍ͨ͠ʂ 1. ԿނվળͰ͖Δ͔ͷγφϦΦ͕໌֬ 2. ظ଴ޮՌྔ͕େ͖͍ͱ͜Ζʹ஫ྗ

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͍͍Ծઆݕূͷ৚݅ ɹ1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ɹ2. ఺ͱઢΛ༻͍ͨݕূ ɹ3. ϓϩμΫτʹด͡ͳ͍ࢹ໺

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2. ʮ఺ʯͱʮઢʯΛ༻͍ͨݕূ ݕࡧΤϯδϯ ஍Ҭ͓ళ·ͱΊϖʔδ ϒοΫϚʔΫ τοϓϖʔδ ϝʔϧϚΨδϯ ʁʁʁʁʁ ʁʁʁʁʁ

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2. ʮ఺ʯͱʮઢʯΛ༻͍ͨݕূ ݕࡧΤϯδϯ ஍Ҭ͓ళ·ͱΊϖʔδ ϒοΫϚʔΫ τοϓϖʔδ ϝʔϧϚΨδϯ 1. ߜΓࠐΈ͕ٻΊΒΕ͍ͯΔ͔͸ߜΓࠐΈࣗମͷΫϦοΫ཰ͰܭଌՄೳ 2. 1఺ͷΈͰ׬݁͢ΔࢦඪͳͷͰʮ఺ʯͷࢦඪ 3. ػೳ͕ٻΊΒΕͯΔ͔౳ΛଌΕΔ

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2. ʮ఺ʯͱʮઢʯΛ༻͍ͨݕূ ݕࡧΤϯδϯ ஍Ҭ͓ళ·ͱΊϖʔδ ϒοΫϚʔΫ τοϓϖʔδ ϝʔϧϚΨδϯ 1. ͓ళϦϯΫͷΫϦοΫ਺ͷઈରྔͰଌΔʁ 2. ͓ళϦϯΫͷΫϦοΫ཰ͰଌΔʁ ಋೖͨ͠UI͕ػೳͯ͠Δ͔Ͳ͏͔͸Θ͔Δ͕ɺ͓ళΛ୳ͤͯΔ͔Ͳ͏͔͸Ͳ͏ଌΔʁ -> PV͕૿͚͑ͨͩͷՄೳੑ͕͋Δ -> ୔ࢁߜΓࠐΜͰ͓ళΛݟ͚ͭͨ৔߹ɺ ΫϦοΫ཰͸Լ͕Δ(੒ޭ͍ͯ͠Δ͕ࢦඪ ͸Լ͕Δ)

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2. ʮ఺ʯͱʮઢʯΛ༻͍ͨݕূ ʢ͜ͷϧʔτͷʣ੒ޭηογϣϯͷׂ߹ ݕࡧΤϯδϯ ஍Ҭ͓ళ·ͱΊϖʔδ ϒοΫϚʔΫ τοϓϖʔδ ϝʔϧϚΨδϯ 1. ઢͷࢦඪ͸ετʔϦʔΛද͢ࢦඪ 2. ཧ૝ͷετʔϦʔΛͨͲͬͨϢʔβʔ͔͠੒ޭϢʔβʔ ʹΧ΢ϯτ͞Εͳ͍ͨΊϊΠζʹڧ͍ 3. ͨͩ͠ɺͲͷϦϯΫΛΫϦοΫ͔ͨ͠ͳͲͷɺߦಈ಺༰ ͷৄࡉ͸Θ͔Βͳ͍

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2. ʮ఺ʯͱʮઢʯΛ༻͍ͨݕূ 1. ಋೖͨ͠΋ͷ͕ҙਤ௨Γػೳ͢Δ͔͸ʮ఺ʯ ͷࢦඪͰݟΔ 2. Ұ࿈ͷϢʔβʔମݧ͕޲্͍ͯ͠Δ͔ɺᆝଛ͠ ͍ͯΔ͔͸ʮઢʯͷࢦඪͰݟΔ

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͍͍Ծઆݕূͷ৚݅ ɹ1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ɹ2. ఺ͱઢΛ༻͍ͨݕূ ɹ3. ϓϩμΫτʹด͡ͳ͍ࢹ໺

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3. ϓϩμΫτʹด͡ͳ͍ࢹ໺ ݕࡧΤϯδϯ ஍Ҭ͓ళ·ͱΊϖʔδ

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3. ϓϩμΫτʹด͡ͳ͍ࢹ໺ ݕࡧΤϯδϯ ஍Ҭ͓ళ·ͱΊϖʔδ •͍ͭ΋ͷങ͍෺Ͱ୳͍ͯ͠ΔϢʔβʔ •Ҿӽͨ͠͹͔ΓͰ͓ళΛ୳͍ͯ͠ΔϢʔβʔ •͓ग़͔͚ؼΓʹ͓ళΛ୳͍ͯ͠ΔϢʔβʔ ϢʔβʔϞνϕʔγϣϯ͸༷ʑ

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3. ϓϩμΫτʹด͡ͳ͍ࢹ໺ • Ϣʔβʔ͞Μ͕αʔϏεʹৼΕͯ͘ Ε͍ͯΔ࣌ؒ͸ੜ׆ͷதͰҰ෦෼Ͱ͠ ͔ແ͍ •αʔϏεʹ;ΕΔલޙͷจ຺΍ɺจ຺ ͷதͰͷײ৘ͷ༳Εಈ͖ʹେࣄͳώϯ τ͕ଘࡏ͢Δ͜ͱ͸ଟ͍ •௚઀໨ͰݟΔఆੑ৘ใΛ૿΍͍ͯ͘͠ ߦಈ͕େࣄ

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͍͍Ծઆݕূͷ৚݅ ɹ1. ໰୊ͷ໌֬͞ɺظ଴ޮՌͷେ͖͞ ɹ2. ఺ͱઢΛ༻͍ͨݕূ ɹ3. ϓϩμΫτʹด͡ͳ͍ࢹ໺

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BUILD LEARN MEASURE IDEA PRODUCT DATA 1. ͍͍Ծઆݕূͬͯʁ 2. νʔϜͰͷऔΓ૊Έํ Ծઆݕূ จԽ

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ɹ1. Agility ɹ2. ௕ظɾதظɾ୹ظͰৼΓฦΔ ɹ3. ԾઆݕূͷͨΊͷಓ۩Λॆ࣮ͤ͞Δ

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ɹ1. Agility ɹ2. ௕ظɾதظɾ୹ظͰৼΓฦΔ ɹ3. ԾઆݕূͷͨΊͷಓ۩Λॆ࣮ͤ͞Δ

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Photo by Olga Guryanova on Unsplash

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1. Agility • νʔϜͰऔΓ૊Ήͱ͖ʹεϐʔυɺࢼ͢ճ਺͸ॏཁ • ࡉཻ͔͍౓Ͱ࣮ߦ͢Ε͹ɺࣦഊʹର͢Δ৺ཧతোน͸Լ ͕Δ • େ͖࣮͘ߦ͢ΔͱαϯΫίετόΠΞε͕ॏ͘ͷ͔͔ͬ͠ ͯ͠·͏ • ϦζϜΑ͘։ൃ͢Δͷ͸େࣄ • ৼΓฦΓͷཻ౓ͱස౓Λߟྀͯ͠2िؒͷεϓϦϯτϕʔε • 1िؒͩͱৼΓฦΓͷͨΊͷਐḿ͕࡞Γʹ͍͘

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ɹ1. Agility ɹ2. ௕ظɾதظɾ୹ظͰৼΓฦΔ ɹ3. ԾઆݕূͷͨΊͷಓ۩Λॆ࣮ͤ͞Δ

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2. ௕ظɾதظɾ୹ظͰৼΓฦΔ 4݄ 7݄ 10݄ 1݄ 4݄

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2. ௕ظɾதظɾ୹ظͰৼΓฦΔ • ৭Μͳཻ౓ͷظؒͰৼΓฦΔ͜ͱ͕ͱͯ΋ॏཁ • 2िؒͷৼΓฦΓͰಘΒΕΔ஌ݟ͸ࢪࡦʹݶఆͨ͠΋ͷʹͳΓ͕ͪ • 1ϲ݄΍਺ϲ݄ͷ୯ҐͰৼΓฦΔ͜ͱͰɺେ͖ͳԾઆʹରͯ͠ݕূ͢Δ ػձ͕ಘΒΕΔ • େཻ͖͍౓ͷৼΓฦΓ͸ɺ૊৫Ͱ͸Ϛωʔδϟʔͷ੹຿Ͱ͋Δ͜ͱ͸ଟ͍ • ͨͩ͠ɺνʔϜͰҰॹʹৼΓฦΔ΂͖ • νʔϜͷڞ௨ݴޠΛ૿΍͠ɺԾઆϨϕϧΛ্͛Δ͜ͱ͕Ͱ͖Δ • ৼΓฦΓͷதͰɺϢʔβʔʹؔ͢Δٞ࿦ʹ࣌ؒΛׂ͘͜ͱ͕ॏཁ • ৼΓฦΓͰձ࿩͞ΕΔ಺༰͕จԽʹ௚݁͢Δ

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ɹ1. Agility ɹ2. ௕ظɾதظɾ୹ظͰৼΓฦΔ ɹ3. ԾઆݕূͷͨΊͷಓ۩Λॆ࣮ͤ͞Δ

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3. ԾઆݕূͷͨΊͷಓ۩Λॆ࣮ͤ͞Δ •ʮ෼ੳख๏ͷڞ༗ʯ΍ʮ෼ੳϋʔυϧΛԼ͛ΔͨΊͷج൫੔උʯ౳ɺݕূͷεϐʔ υΛ্͛ΔͨΊͷಓ۩Λ૿΍͢͜ͱΛॏࢹ͍ͯ͠·͢ •SQLͰ෼ੳ͢Δ৔߹ɺϋʔυϧΛԼ͛ΔͨΊʹதؒσʔλ΍ViewΛੜ੒͢Δ౳ •ϩάσʔλͦͷ··ͩͱΫΤϦͰѻ͍ͮΒ͍έʔε͕ଟ͍ •෼ੳख๏Λslackνϟϯωϧ΍ࣾ಺wikiͰͷڞ༗ •෼ੳษڧձΛ։͍ͯνʔϜͰύλʔϯԽ͢ΔͱɺΈΜͳͷಓ۩͕૿͑ͯͱͯ΋ศ ར •ఆྔతͳ΋ͷ͚ͩͰ͸ͳ͘ɺϢʔβʔΠϯλϏϡʔ΍ߦಈௐࠪͳͲ΋૊Έ߹ΘͤΔ •ࢦඪʹݱΕͳ͍ՕॴͰॏཁͳ͜ͱ͸ͨ͘͞Μ͋Δ

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ɹ1. Agility ɹ2. ௕ظɾதظɾ୹ظͰৼΓฦΔ ɹ3. ಓ۩Λॆ࣮ͤ͞Δ

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BUILD LEARN MEASURE IDEA PRODUCT DATA 1. ͍͍Ծઆݕূͬͯʁ 2. νʔϜͰͷऔΓ૊Έํ Ծઆݕূ จԽ

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αʔϏεΛ੒௕ͤ͞ΔԾઆݕূจԽͷܗ੒ ྑ͍ৼΓฦΓΛ୔ࢁੵΈॏͶΔ ໰୊ΛݟΔ؟ͷղ૾౓Λߴ͘͢ΔͨΊʹ

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ڞʹಇ͘஥ؒΛืू͍ͯ͠·͢ʂ https://corp.tokubai.co.jp/recruitments/recruit.html

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ࠓ೔ͷ࠙਌ձʹεΠʔπεϙϯαʔͱͯ͠ڠࢍ͍ͯ͠·͢ τΫόΠϝϯόʔ͓͢͢ΊεΠʔπΛἧ͖͑ͯ·ͨ͠ʂͥͻ৯΂ʹདྷ͍ͯͩ͘͞ʂ

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Thankyou! https://railsdm.herokuapp.com/issues/124