Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
My patches for Rails 5
Search
Takashi Kokubun
May 29, 2016
Programming
5
6.3k
My patches for Rails 5
東急Ruby会議10 LT #tqrk10
Takashi Kokubun
May 29, 2016
Tweet
Share
More Decks by Takashi Kokubun
See All by Takashi Kokubun
Deoptimization: How YJIT Speeds Up Ruby by Slowing Down / RubyKaigi 2025
k0kubun
2
3.1k
YJIT Makes Rails 1.7x faster / RubyKaigi 2024
k0kubun
7
14k
Ruby JIT Hacking Guide / RubyKaigi 2023
k0kubun
2
10k
YJIT: Dive into Ruby's JIT compiler written in Rust / Rust.Tokyo 2022
k0kubun
1
2.2k
Towards Ruby 4 JIT / RubyKaigi 2022
k0kubun
3
11k
Optimizing Production Performance with MRI JIT / RubyConf 2021
k0kubun
1
470
Why Ruby's JIT was slow / RubyKaigi Takeout 2021
k0kubun
3
1.9k
数時間かかる週一リリースを毎日何度も爆速でできるようにするまで / CI/CD Conference 2021
k0kubun
21
14k
Ruby 3 JIT's roadmap / RubyConf China 2020
k0kubun
0
820
Other Decks in Programming
See All in Programming
ご注文の差分はこちらですか? 〜 AWS CDK のいろいろな差分検出と安全なデプロイ
konokenj
3
370
フロントエンドのパフォーマンスチューニング
koukimiura
4
1.5k
Composerが「依存解決」のためにどんな工夫をしているか #phpcon
o0h
PRO
1
320
ソフトウェア品質を数字で捉える技術。事業成長を支えるシステム品質の マネジメント
takuya542
2
14k
dbt民主化とLLMによる開発ブースト ~ AI Readyな分析サイクルを目指して ~
yoshyum
3
1.1k
AI Agent 時代のソフトウェア開発を支える AWS Cloud Development Kit (CDK)
konokenj
4
530
Agentic Coding: The Future of Software Development with Agents
mitsuhiko
0
120
効率的な開発手段として VRTを活用する
ishkawa
0
150
Modern Angular with Signals and Signal Store:New Rules for Your Architecture @enterJS Advanced Angular Day 2025
manfredsteyer
PRO
0
230
The Evolution of Enterprise Java with Jakarta EE 11 and Beyond
ivargrimstad
0
150
AIともっと楽するE2Eテスト
myohei
7
2.9k
たった 1 枚の PHP ファイルで実装する MCP サーバ / MCP Server with Vanilla PHP
okashoi
1
270
Featured
See All Featured
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
281
13k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
8
700
How To Stay Up To Date on Web Technology
chriscoyier
790
250k
Art, The Web, and Tiny UX
lynnandtonic
299
21k
Rails Girls Zürich Keynote
gr2m
95
14k
Statistics for Hackers
jakevdp
799
220k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
22k
Being A Developer After 40
akosma
90
590k
How STYLIGHT went responsive
nonsquared
100
5.6k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Transcript
My patches for Rails 5 @k0kubun TokyuRubyձٞ10
ࣗݾհ • Twitter, GitHub: @k0kubun • Cookpad • ٕज़෦։ൃج൫άϧʔϓ •
RailsͷϑΝϯ • ίϛοτ7
ࠓ͢͜ͱ • ͕ Rails 5.0 ʹ͍ΕͨҎԼͷύονʹؔͯ͠ࢥ͏ ͜ͱΛ͠·͢ • #22722 Use
CGI.escapeHTML for html escape • #18109 Allow joins to be unscoped • #22125 Alias left_joins to left_outer_joins
Use CGI.escapeHTML for html escape https://github.com/rails/rails/pull/22722
#22722 Use CGI.escapeHTML for html escape
#22722 Use CGI.escapeHTML for html escape • erbͷHTMLΤεέʔϓʹgsubͷݺͼग़͠Ͱ ͳ͘ CGI.escapeHTML
Λ͏Α͏ʹ͢Δౕ • Ruby 2.3 Ͱ CGI.escapeHTML ΛߴԽͨ͠
CGI.escapeHTMLͷߴԽύον
• ݩ୯ͳΔ gsub(/[&"'><]/, { '&' => '&', .. }) •
͜ΕΛ͔ͳΓ۪ʹCʹॻ͖͚ͨͩ͠ • UTF-8ؚΉASCIIޓͷΤϯίʔσΟϯάͰ࠷େ 7ഒߴԽ • ext/cgi/escape ര CGI.escapeHTMLͷߴԽύον
ͳͥHTMLΤεέʔϓΛߴԽ ͔ͨ͠ • RailsͷerbͷϨϯμϦϯάͰHTMLΤεέʔϓ͕Ϙ τϧωοΫͩͬͨ͠ɺଞʹ͘͠Α͏͕ͳ͍͔Β
Ͳͷ͘Β͍มΘ͔ͬͨ • લఏࣝ: String࿈݁ͷݱࡏͷੑೳൺֱ TMJNͷDPNQJMFECFODIͷ)5.-Τεέʔϓ༗ޮ൛ JT
IBNMJU W TMJN W GBNM W FSVCJT W IBNM WCFUB https://travis-ci.org/k0kubun/hamlit/jobs/131694989
Ͳͷ͘Β͍มΘ͔ͬͨ • ActionViewͰͷݩʑͷੑೳൺֱ https://gist.github.com/k0kubun/e9363d8359d9a9604c55bd23fb28c64d લͷϖʔδͷౕͷ"DUJPO7JFXԽ൛ FSCͷ$(*FTDBQF)5.-Խͳ͠ JT
IBNMJU W TMJN W GBNM W "75FNQMBUF )FMQFST&SVCJT IBNM WCFUB
Ͳͷ͘Β͍มΘ͔ͬͨ • ActionViewͰͷerbͷCGI.escapeHTMLԽͷޮՌ https://gist.github.com/k0kubun/3ea0c0dba78ac2e832c8fbe5a104d04b લͷϖʔδͷౕͷ"DUJPO7JFXԽ൛ FSCͷ$(*FTDBQF)5.-Խ͋Γ JT
IBNMJU W TMJN W GBNM W "75FNQMBUF )FMQFST&SVCJT IBNM WCFUB
RailsͰ࠷ͷςϯϓϨʔτΤϯδϯ • Hamlit ͔ σϑΥϧτͷ ActionView::Template::Handlers::Erubis • Ͳౕ͕ͬͪͨ͘͠ͳͷͰͲͬͪͬͯ ͘Ε͍͍ͯͰ͢
Allow joins to be unscoped https://github.com/rails/rails/pull/18109
#18109 Allow joins to be unscoped
#18109 Allow joins to be unscoped • (join͢Δ)includes, eager_load, joins
Ͱ unscopedΛͬͯ default_scope ͕֎ͤΔΑ ͏ʹͳΔ • 2͝͠ͷϚʔδ
default_scopeͷҋ • Ͳ͏ͬͨΒdefault_scopeͷόάमਖ਼ΛϚʔδ ͯ͠Β͑Δ͔૬ஊͯ͠Έͨ
default_scopeͷҋ • default_scopeʹࢥ͍ೖΕͷ͋Δίϛολʔ͕ ͍ͳ͍ͷͰ͏͖Ͱͳ͍
• ࣮ࡍͣͬͱϚʔδ͞Εͳ͔ͬͨ default_scopeͷҋ ↑ݴٴͯ͠Δissue͕ผͷํ๏Ͱղܾ͞ΕͨͷͰηϧϑΫϩʔζ
default_scopeͷҋ • ผͷϓϧϦͰdefault_scopeʹݴٴ͠ͳ͍Α ͏ʹͨ͠ΒϚʔδ͞Εͨ
default_scope͕֎ͤͳ͍ྫ • ͖ͬ͞ͷύον͕Ϛʔδ͞Εͯͳ͍ͷͰɺ
default_scope͕֎ͤͳ͍ྫ • preloadͯ͠Δ͔Ͳ͏͔Ͱ݁Ռ͕มΘΔ
Rails 5 ʹΔdefault_scopeͷόά • preload(join͠ͳ͍)includes default_scope͕֎ͤͳ͍
Rails 5 ʹΔdefault_scopeͷόά • Ͱࢿྉ࡞ͬͯͨΒͬͺͬͯཉ͘͠ͳͬ ͨͷͰࠓϓϧϦग़͠͠·ͨ͠
Alias left_joins to left_outer_joins https://github.com/rails/rails/pull/22125
#22125 Alias left_joins to left_outer_joins
#22125 Alias left_joins to left_outer_joins • left_outer_joins ͷΤΠϦΞε left_joins ΛՃ
͢Δ͚ͩ • ͨΓલ͚ͩͲҒ͍ͷͷϓϧϦͰͳ͘ left_outer_joins ΛՃ͢ΔํͷϓϧϦ • ·͋Ͱleft_outer_joinsͱ͔͗ͯ͢Θͳ ͍ΑͶ
ͦͦͳΜͰ left_outer_joins ͕ͦΜͳʹཉ͔͔ͬͨ͠ • ߜΓࠐΈͨΊͷLEFT OUTER JOINΛੜSQLΛ Θͣʹॻͨ͘ΊʹincludesΛ͏ਓ͕͍Δ • eager
loadͯ͠͏Θ͚Ͱͳ͍Ϩίʔυͷ AR::BaseΠϯελϯε͕େྔʹ࡞ΒΕ͍ • ͦ͏͍͏༻్ͷϝιου͡Όͳ͍ͱϨϏϡʔ ͢ΔͱΠϯλʔωοτΛࠜڌʹൃ͞ΕΔ
ͦͦͳΜͰ left_outer_joins ͕ͦΜͳʹཉ͔͔ͬͨ͠
ͦͦͳΜͰ left_outer_joins ͕ͦΜͳʹཉ͔͔ͬͨ͠ • eager loading͕ෆཁͳΒRails 4ҎԼͰੜΫ ΤϦॻ͍ͨํ͕Ϛγͱࢥ͍ͬͯ·͢ • Rails
5Ͱͬͱͦ͏͠ͳͯ͘Α͘ͳΔ
༨ஊ: ͦͷincludesຊʹ͘ ͳΔ͔֬ೝͯ͠Δʁ • N+1௵ͯ͠ΫΤϦ͚ͩͯ͘͠τʔλϧͰ͘ͳΔͱ ݶΒͳ͍ • ಛʹhas_many associationΛeager loadingͯ͠AR::Base
͕ಉ࣌ʹେྔʹ࡞ΒΕΔ߹ • ʮincludesͯ͠N+1ͳ͘͠·ͨ͠ʂʯΈ͍ͨͳϓϧϦɺ લޙͷࠩΛషͬͯ΄͍͠ • rails sͷϩάݟΔ͚ͩͰΘ͔Δ
༨ஊ: ͦͦԶincludesࣗମ ͕ݏ͍ͩ • ͏ਓͷؾ͕࣋ͪશ͘Θ͔Βͳ͍ • includesΛݟ͚ͨͩͰͲ͏͍͏ڍಈΛ͢Δͷ͔༧ଌͰ͖ͣ Մಡੑ͕͍ • JOIN͢ΔͭΓͳ͍ॴͰJOIN͞ΕͨΒΤϥʔʹͳͬͯཉ͍͠
• includes(:foo).references(:foo)ͱ͔includes(:foo).joins(:foo) Έ͍ͨͳͳॻ͖ํ͕ؾʹͳΔ • eager_load(:foo)Ͱ͍͍͡ΌΜ
༨ஊ: ͦͦԶincludesࣗମ ͕ݏ͍ͩ • Q: Recipe.includes(:steps).foo_scope.to_a stepsͱJOIN͢Δ͔?
༨ஊ: ͦͦԶincludesࣗମ ͕ݏ͍ͩ • Q: Recipe.includes(:steps).foo_scope.to_a stepsͱJOIN͢Δ͔? • A: Θ͔Βͳ͍
• foo_scopeͷఆٛʹΑΔ
·ͱΊ • Ruby 2.3 ͱ Rails 5.0 Λ͏ͱerb͕͘ͳΔ • default_scopeόάͬͯΔ͠ϝϯς͞Εͳ͍
• includesͷ͍ํΛݟͯ͠ཉ͍͠ • AR::BaseͷੜίετʹؾΛ͚ͭΑ͏