try_to_making_a_gem_with_pattern_matching.pdf

Ebisu.rb #25

Transcript

1. Ruby2.7Ͱಋೖ͞ΕΔ Pattern matchingͰ GemΛ࡞ͬͯΈͨ Ebisu.rb #25 @_morihirok
2. About me • Github: morihirok • Twitter: @_morihirok • STORES.jp inc,
3. Ruby 2.7ΑΓ Pattern matching ͱ͍͏ػೳ͕ೖΓ·͢
4. 3VCZ,BJHJ
   
   1BUUFSO
   NBUDIJOH
   
   /FX
   GFBUVSF
   JO
   3VCZ
   
   ΑΓҾ༻
   IUUQTTQFBLFSEFDLDPNL@UTKQBUUFSONBUDIJOHOFXGFBUVSFJOSVCZEPU
5. 3VCZ,BJHJ
   
   1BUUFSO
   NBUDIJOH
   
   /FX
   GFBUVSF
   JO
   3VCZ
   
   ΑΓҾ༻
   IUUQTTQFBLFSEFDLDPNL@UTKQBUUFSONBUDIJOHOFXGFBUVSFJOSVCZEPU
6. ࢖ͬͯΈ͍ͨͷͰ Կ͔࡞Ζ͏
7. STORES.jp͸ϝΠϯDB͕ MongoDB • ओཁͳσʔλ͸શͯMongoDBʹೖ͍ͬͯΔ • ओཁͳΫΤϦ΋શͯMongoDBʹ޲͔͍ͬͯΔ • ౰વ࣮ߦܭը΋MongoDBͷ΋ͷΛ֬ೝ͢Δ • MongoDBͷexplain͸ಡΈͮΒ͍
8. MongoDBͷexplain݁Ռͷ αϯϓϧ > db.items.find({price: 119}).explain("executionStats") { "queryPlanner" : { "plannerVersion" : 1, "namespace" : "sample_db.items", "indexFilterSet" : false, "parsedQuery" : { "price" : { "$eq" : 119 } }, "winningPlan" : { "stage" : "COLLSCAN", "filter" : { "price" : { "$eq" : 119 } શͯ+40/Ͱදݱ͞ΕΔ
9. Pattern matchingΛ࢖͑͹ JSONͷѻ͍͕ ָʹͳΔͷͰ͸ʁ
10. ͱ͍͏͜ͱͰ࡞ͬͨͷ͕͜Ε FYQMBJOͷ+40/Λ ͍͍۩߹ʹ.BSLEPXOͷ
    ςʔϒϧʹม׵͢Δ
11. ΠϯσοΫε͕ޮ͍ͯͳ͍ͱ͖ͷ explain݁Ռ ͕͜͜z$0--4$"/zʹͳΔ
12. ͜͏ॻ͚Δ ͕͜͜z$0--4$"/zʹͳΔ
13. ΠϯσοΫε͕ޮ͍͍ͯΔͱ͖ͷ explain݁Ռ ͕͜͜z'&5$)zʹมΘΔ ͕͜͜z*94$"/zʹͳΔ ͜͜ʹΠϯσοΫε໊͕ೖΔ
14. ͜͏ॻ͚Δ ͕͜͜z'&5$)zʹมΘΔ ͕͜͜z*94$"/zʹͳΔ ͜͜ʹΠϯσοΫε໊͕ೖΔ
15. ͜͏ॻ͚Δ ม਺ΛόΠϯυͰ͖Δ ͜͜ʹΠϯσοΫε໊͕ೖΔ
16. ࠷ऴతʹ͸͜͏ͳΔ
17. STORES.jpͰ΋ ͍͍ײ͡ʹ࢖͑ͦ͏
18. ͓લ͸ຊ൪ͷRubyΛ 2.7ʹ্͛Δͭ΋Γͳͷ͔ʁ
19. Pattern matchingແ͠Ͱ ॻ͖׵͑Δͱ
20. Pattern matchingແ͠Ͱ ॻ͖׵͑Δͱ όʔδϣϯ͝ͱͷ
    ίʔυͷဃ཭͕ܹ͘͠ͳΔ
21. ͜Μͳํ๏΋͋Γ·͢
22. pattern-matchΛར༻͢Δͱ 1SPDDBMM ͷγϯλοΫεγϡΨʔ͕
     Ͱ͋Δ͜ͱΛར༻͍ͯ͠Δ
23. pattern-matchΛར༻͢Δͱ ͋Δఔ౓ࣅͨίʔυΛ
    อͭ͜ͱ͕Ͱ͖Δ
24. Ruby2.7Ҏ্Ͱ͸ Pattern matchingΛ࢖͍͍ͨ Ruby2.6ҎԼͰ΋ gem͸࢖͍͍ͨ
25. RubyͷόʔδϣϯʹΑͬͯ require͢ΔϑΝΠϧΛม͑Δ • mongo_clarify.rb 3VCZͷόʔδϣϯʹΑͬͯ
    ϑΝΠϧΛม͍͑ͨϞδϡʔϧ
26. RubyͷόʔδϣϯʹΑͬͯ require͢ΔϑΝΠϧΛม͑Δ • investigate.rb 3VCZҎ্ͳΒ
    1BUUFSO
    .BUDIJOH൛Λ࢖͏
27. • ىಈதͷRubyͷόʔδϣϯจࣈྻΛอ࣋͢Δ ఆ਺ Gem::Version • όʔδϣϯจࣈྻΛൺֱՄೳʹ͢ΔΫϥε RUBY_VERSION
28. ςετ΋RubyͷόʔδϣϯʹΑͬͯ require͢ΔϑΝΠϧΛม͑Δ • mongo_clarify_spec.rb 3VCZͷόʔδϣϯʹΑͬͯ
    ϑΝΠϧΛม͍͑ͨϞδϡʔϧ
29. ςετ΋RubyͷόʔδϣϯʹΑͬͯ require͢ΔϑΝΠϧΛม͑Δ • .travis.yml $*ʹෳ਺όʔδϣϯͰ
    ςετͯ͠΋Β͏
30. RubyGemsʹస͕͍ͬͯ·͢ • https://rubygems.org/gems/mongo_clarify
31. ༨ஊ Gemͷ࡞੒աఔͰ MongoDBͷexplainʹ׳Ε ͜ͷGem࢖͍ͬͯͳ͍