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tsutomu chikuba
May 24, 2018
Programming
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Meguro.rb #15 LT資料
Rails(プログラミング)初心者
FAQから学ぶ何か
tsutomu chikuba
May 24, 2018
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Transcript
Meguro.rb#15 LT Railsʢϓϩάϥϛϯάʣॳ৺ऀ FAQ͔ΒֶͿԿ͔ 2018/05/24() tchikuba
Profile SNS: tchikuba Blog: https:// tchikuba.github.io/ Company: Livesense Ruby: 5.years.ago
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ॳॻ੶ ແࣄग़൛ 2018/01/26ൃച
2 ແࣄग़൛ 2018/03/09ൃച
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gemใ͍ͩ͘͞m(_ _)m
ΈΜͳେ͖ ϙΠϯτɾΞϯυɾϑΟΪϡΞ
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ຯʹਓੜॳgem ※FIXME: Ϋιίʔυ
ຊ
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ϓϩάϥϛϯάߨࢣ ͡Ί·ͨ͠
ಘΒΕֶͨͼΛڞ༗ ※͋Μ·Γίʔυग़͖ͯ·ͤΜm(_ _)m
࣭ͷछྨ
Q. git diffΔͱͨΒ͕ࠩ…
A. σΟϨΫτϦ͕ҧ͍·͢Ͷɻ LinuxγεςϜʹ͓͍ͯͲͷσΟϨΫτϦͰ࡞ۀ ͢Δ͔ॏཁͰ͢ͷͰ(ry
Q. error͕ग़ΔΜͰ͚͢Ͳ…
None
None
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[1] pry(main)> buildings = Building.find(1) [2] pry(main)> building.rooms NameError: undefined
local variable or method `building' for main:Object
A. (ry
Q. partialݺͼग़͠ݩΞϯείͳ͍ ͷʹɺϑΝΠϧ໊͋ΔͷԿނʁ ▪ݺͼग़͠ݩ render ‘footer’ ▪ϑΝΠϧ໊ app/views/layouts/_footer.html.erb
A. This is the Rails way.
Q. ΦϦδφϧαʔϏε։ൃதͳΜͰ͕͢ɺ HerokuͰϧʔτυϝΠϯ͍͍ͨΜͰ͚͢Ͳ ՄೳͰ͠ΐ͏͔ʁ
A. SSLߟྀͱ͔౿·͑Δͱجຊwwwαϒυϝӡ༻ָ͕ɻ SSLͩͱ༗ྉdynoʢ࠷݄҆$7ʣݶఆɻ ҰԠCloudflare͑શແྉͰ ϧʔτυϝΠϯʴSSLͰ͑·͢ɻ ʲFYIʳ https://qiita.com/serinuntius/items/f7f08b2221f5ad068f5d
Q. CGMαʔϏε։ൃதͰ͢ɻ Ϣʔβʔͷ࣭ʢquestionsʣʹ ճʢanswersʣ͕Ͱ͖ɺ ࣗҎ֎ͷճʹථʢvotesʣ͕ Ͱ͖ΔγεςϜͰ͢ɻ ճͷථϥϯΩϯάΛ ूܭ͢ΔʹActiveRecordͰͲͷΑ͏ʹ දݱͰ͖·͔͢ʁ
A. ͜Μͳײ͡ (ଟ) User.joins(answers: votes) .group(‘users.id’) .order(‘count_all desc’).count
࣭Λྨͯ͠ΈΔ ୯७ͳΤϥʔܥɻݟΕେ͙͢ʹ͔Δɻ ཧղΛਂΊΔܥɻϋοͱ͢Δ࣭͋Δɻ ΑΓ࣮ફܥɻճ͕͍͕͋͠Δɻ
ͬ͘͟Γ͜Μͳൺ ※ࣾൺ Τϥʔܥ ࣮ફܥ ཧղܥ
·ͱΊ ʮڭ͑Δʯߦҝͷ͏ͪɺਓ͕Δ͖͜ͱͱਓ͕Βͳͯ͘ ࡁΉ͜ͱʢΈͰղܾͰ͖Δ͜ͱʣͷΈ͚͕ඞཁ ຊ࣭ΛΑΓཧղ͢Δ͜ͱ͕ඞཁͳͷͰɺͦ͜ΛͲ͏͑Δ͔ ڭ͑ΔଆͷεΩϧʹґଘ͢Δͱ͜Ζ͕େ͖͍ ʮڭҭʯͬͯۀͷׂʹʢܦࡁతʹʣใΘΕͳ͍ࣄʢͰ χʔζ͋Δʣ RubyͷΛ͛Δ׆ಈେม͚ͩͲҙٛ͋ΔΜ͡Όͳ͍ ͔
https://speakerdeck.com/kakakakakku/tips- for-teaching-rails
Meguro.rb#15 LT Railsʢϓϩάϥϛϯάʣॳ৺ऀ FAQ͔ΒֶͿԿ͔ 2018/05/24() tchikuba