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
New Features in Rails 4.2
Search
murajun1978
February 21, 2015
Programming
0
920
New Features in Rails 4.2
murajun1978
February 21, 2015
Tweet
Share
More Decks by murajun1978
See All by murajun1978
How to Enjoy the Murajun’s Style
murajun1978
0
55
Building Tebukuro with Hotwire and Rails
murajun1978
0
1.3k
Zeitwerk integration in Rails 6.0
murajun1978
0
110
Efficient development with GraphQL
murajun1978
0
310
Effective Debugging Apps in VS Code
murajun1978
1
910
tebukuro
murajun1978
0
120
Shinosaka.rb #17 Hands on
murajun1978
0
53
shinosakarb #11 Rails 4 Pattenrs
murajun1978
1
140
FactoryGirl LT
murajun1978
1
70
Other Decks in Programming
See All in Programming
Rubyでやりたい駆動開発 / Ruby driven development
chobishiba
1
510
Select API from Kotlin Coroutine
jmatsu
1
200
#kanrk08 / 公開版 PicoRubyとマイコンでの自作トレーニング計測装置を用いたワークアウトの理想と現実
bash0c7
1
650
Is Xcode slowly dying out in 2025?
uetyo
1
240
deno-redisの紹介とJSRパッケージの運用について (toranoana.deno #21)
uki00a
0
160
PicoRuby on Rails
makicamel
2
110
Railsアプリケーションと パフォーマンスチューニング ー 秒間5万リクエストの モバイルオーダーシステムを支える事例 ー Rubyセミナー 大阪
falcon8823
4
1k
Google Agent Development Kit でLINE Botを作ってみた
ymd65536
2
210
20250628_非エンジニアがバイブコーディングしてみた
ponponmikankan
0
530
エラーって何種類あるの?
kajitack
5
320
明示と暗黙 ー PHPとGoの インターフェイスの違いを知る
shimabox
2
380
LINEヤフー データグループ紹介
lycorp_recruit_jp
0
1.5k
Featured
See All Featured
Being A Developer After 40
akosma
90
590k
Optimizing for Happiness
mojombo
379
70k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
357
30k
We Have a Design System, Now What?
morganepeng
53
7.7k
A Tale of Four Properties
chriscoyier
160
23k
Done Done
chrislema
184
16k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
281
13k
Producing Creativity
orderedlist
PRO
346
40k
Rebuilding a faster, lazier Slack
samanthasiow
82
9.1k
Designing for humans not robots
tammielis
253
25k
Embracing the Ebb and Flow
colly
86
4.7k
How to Think Like a Performance Engineer
csswizardry
24
1.7k
Transcript
New Features in Rails 4.2 ୈ65ճ Rubyؔ ษڧձ
about me ΉΒ͡ΎΜ murajun1978 Ruby <3 <3 <3
Shinosaka.rb #13 http://shinosakarb.doorkeeper.jp/events/19518 2 / 28
͢͜ͱ • Active Job • Global ID • Adequate Record
• Web Console • Foreign key support • Default Host for rails server
Active Job
Active Jobͱʁ queueing backends Active Job API Job adapter
Job࡞ $ rails generate job job_name
ಛఆͷΩϡʔͷJob࡞ $ rails generate job job_name —queue queue_name
JobΛΩϡʔʹొ
JobͷεέδϡʔϦϯά
ΞμϓλΛมߋ
ར༻Ͱ͖ΔΞμϓλ http://api.rubyonrails.org/classes/ActiveJob/ QueueAdapters.html
ίʔϧόοΫ • before_enqueue • around_enqueue • after_enqueue • before_perform •
around_perform • after_perform
Ωϡʔʹొ͞ΕΔ࣌ʹ࣮ߦ • before_enqueue • around_enqueue • after_enqueue
Job͕࣮ߦ͞ΕΔ࣌ʹ࣮ߦ • before_perform • around_perform • after_perform
ྫ֎ॲཧ
ඇಉظͰϝʔϧૹ৴
Global ID
URIʹΑΔϞσϧࢀর https://github.com/rails/globalid
Global IDͷੜ pry(main)> gid = post.to_gid => #<GlobalID:0x007f8ddfdb79e0 @uri=#<URI::GID gid://blog/Post/1>>
URI͕ੜ͞Εͨ ActiveRecordΦϒδΣΫτ
Global ID͔Β ModelͷใΛऔಘͯ͠ΈΔ gid.app #=> "blog" ɾΞϓϦέʔγϣϯ໊ ɾϞσϧ໊ gid.model_name #=>
"Post" ɾϞσϧΫϥε gid.model_class #=> Post(id: integer, title: string, published_at: datetime …) ɾID gid.model_id #=> "1"
Global ID͔ΒΦϒδΣΫτऔಘ globalid/lib/global_id/locator.rb GlobalID::Locator.locate gid => #<Post id: 1, title:
"Rubyؔ" ...>
Adequate Record
http://tenderlovemaking.com/2014/02/19/adequaterecord-pro- like-activerecord.html
ActiveRecord 2x faster ƅшƅ)ʂ
Rails 4.1 SELECT "posts".* FROM "posts" WHERE "posts"."id" = 1
LIMIT 1 SELECT "posts".* FROM "posts" WHERE "posts"."id" = 2 LIMIT 1 ݅ͷ͕มΘ͚ͬͨͩͳͷʹɺΫΤϦΩϟογϡ͞Εͯͳ͍
Rails 4.2 SELECT "posts".* FROM "posts" WHERE "posts"."id" = ?
LIMIT 1 [["id", 1]] SELECT "posts".* FROM "posts" WHERE "posts"."id" = ? LIMIT 1 [["id", 2]] Ωϟογϡ͞ΕͨΫΤϦʹΛ͍ͯ͠Δ
αϙʔτ͞Ε͍ͯΔͷ • find(id) • find_by(name: name) • find_by_name(name)
Ωϟογϡ͕ద༻͞Εͳ͍߹ • ϞσϧʹσϑΥϧτείʔϓ͕ઃఆ͞Ε͍ͯΔ • ϞσϧͰ୯Ұςʔϒϧܧঝ (STI) ͕༻͞Ε͍ͯΔ • PolymorphicΛͬͯΔ •
findͰ idͷྻΛ͢߹ • find(1,2) or find([1,2])
Web Console
ΤϥʔϖʔδͰσόοά
ಛఆͷϖʔδͰσόοά
ࢦఆIP͔ΒͷΈར༻͢Δ
Foreign Key Support
ϚΠάϨʔγϣϯͰ֎෦Ωʔ ͷՃɺআΛαϙʔτ
αϙʔτ͞ΕΔΞμϓλ • mysql • mysql2 • postgresql
Default Host for rails server
σϑΥϧτͷϗετ͕0.0.0.0͔Β localhost(127.0.0.1)ʹมߋ ֎෦PC͔ΒΞΫηε͢Δ߹ rails server -b 0.0.0.0
·ͱΊ • Active JobόοΫΤϯυͷΩϡʔγεςϜʹ͔͔ΘΒ ͣɺಉ͡هड़Ͱॻ͚Δ͕ྑ͍ • ܁Γฦ͢όονॲཧͳͲɺsidetipsidekiq-schedulerΛ ͏ͱྑ͍͔ • Global
IDActive JobҎ֎Ͱ͑ͦ͏ • Ruby on Rails 4.2 ϦϦʔεϊʔτಡ͏ • RailsͷContributorsʹײँ :)
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠