MUGEN MEET UP #1

Transcript

1. MUGEN MEET UP #1 ૔੒ ஐٱ @ MUGENUP, inc 2015/08/19(Wed)
2. ࣗݾ঺հ • ૔੒ ஐٱ @ MUGENUP, inc • RailsΛத৺ʹ։ൃ͍ͯ͠·͢ • ࠷ۙ͸ษڧձʹΑ͘إΛग़ͯ͠·͢
3. ͓඼ॻ͖ 1. 10 Most Common Rails Mistakes: 
 A Best Practice Tutorial 2. Gr8 — A great utility brings Ruby power to your command-line. 3. Typeset.js
4. 10 Most Common Rails Mistakes: A Best Practice Tutorial • RailsͷΞϯνύλʔϯΛ10ݸ঺հ • ౰ͨΓલͷ͜ͱͳΜ͚ͩͲɺ΄΅શͯ౿Έൈ ͍͍ͯͨ 
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5. 10 Most Common Rails Mistakes: A Best Practice Tutorial 1. ίϯτϩʔϥʹϩδοΫΛॻ͖͗͢ Putting too much logic in the controller 2. ϏϡʔʹϩδοΫΛॻ͖͗͢ Putting too much logic in the view 3. ϞσϧʹϩδοΫΛॻ͖͗͢ Putting too much logic in the view 4. ϔϧύʔΛഇغ৔ॴͱͯ͠࢖͏ Using generic helper classes as a dumping ground
6. 10 Most Common Rails Mistakes: A Best Practice Tutorial 5. Gem࢖͍͗͢ Using too many gems 6. ϩάग़ྗΛແࢹ͢Δ Ignoring your log files 7. ςετෆ଍ Lack of automated tests
7. 10 Most Common Rails Mistakes: A Best Practice Tutorial 8. ֎෦αʔϏεΛಉظݺͼग़͢͠Δ Blocking on calls to external services 9. migrationϑΝΠϧʹґଘ͢Δ Getting married to existing database migrations 10.ػີ৘ใΛϦϙδτϦʹίϛοτ͢Δ Checking sensitive information into source code repositories
8. #1 ίϯτϩʔϥʹϩδοΫ
 ॻ͖͗͢ • Controllerʹॻ͍͍͍ͯॲཧ • ηογϣϯͱΫοΩʔͷ؅ཧ • Ϟσϧͷऔಘ • ϦΫΤετύϥϝʔλͷ؅ཧ • ϨϯμϦϯάͱϦμΠϨΫτ • ίϯτϩʔϥΛଠΒͤͳ͍ʂ
9. #7 ϩάग़ྗΛແࢹ͢Δ • ඇޮ཰ͳॲཧʹؾ͔ͮͣίϛοτ͢Δ • ϩάग़ྗ͕͞Βʹ૿͑Δ • ඇޮ཰ͳॲཧʹؾ͔ͮͣίϛοτ͢Δ • ϩάग़ྗ͕૿͑Δ • ඇޮ཰ͳ………
10. #8 ֎෦αʔϏεΛಉظݺͼग़ ͢͠Δ • ඇಉظͰߦ͏΂͖ॲཧɺಉظݺͼग़͍ͯ͠͠ ͳ͍ʁ • Delayed job, Resque, SidekiqͳͲΛ࢖ͬͯɺ ඇಉظॲཧ͢Δ΂͖
11. ͋Δ͋Δ͗ͯ͢ ٽ͚ͯͨ
12. Gr8 — A great utility brings Ruby power to your command-line. • RubyͷArrayૢ࡞ΛίϚϯυϥΠϯ͔Β΋࢖͑ Δ(࢖͍΍͘͢)Α͏ʹͨ͠΋ͷ map, select, inject, grep, min, max (S
    
    IUUQLXBUDIHJUIVCJPHS $ gem install gr8
13. Gr8 — map $ cat data Haruhi 100 Mikuru 80 Yuki 120 $ cat data | gr8 'map{|s| s }' Haruhi 100 Mikuru 80 Yuki 120
14. Gr8 — split, inject # Split $ cat data | gr8 'map{|s| s.split()[1] }' 100 80 120 # inject $ cat data | > gr8 'map{split()[1]}.map(&:to_i).inject(0,:+)' 300
15. Gr8 — grep $ ls img1.jpg img2.jpg img3.jpg img4.png img5.png img6.png $ ls | gr8 ‘grep(/(.*)\.png$/)’ img1.png img2.png img3.png
16. ͦΕ( awk | sed | grep )Ͱ ग़དྷΔΑʁ
17. ͦΕͰ΋ • ೃછΈͷ͋ΔRubyͰॻ͚Δͷ͸خ͍͠ • Մಡੑ͸ߴ͍ҹ৅ • RubyϫϯϥΠφʔΑΓ΋͔ͳΓಡΈ΍͍͢ • ΦϨΦϨCLI࡞ΔͱḿΔ͔΋
18. Typeset.js • λΠϙάϥϑΟΛ͍͍ײ͡ʹͯ͘͠ΕΔ • HTMLͷϓϦϓϩηοα 5ZQFTFUKT
    
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19. σϞ https://blot.im/typeset/
20. Typeset.js • σβΠϯΛ੔͑ΔϓϦϓϩηοα • ೔ຊޠͰ΋࢖͍͍ͨ • LPͳͲλΠϙάϥϑΟʹڽΓ͍ͨ৔໘Ͱ׆༂ ͦ͠͏ 5ZQFTFUKT
    
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21. ৘ใݯ — Hacker News