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
ROM.rb: Another Approach to Persistence
Search
Seiya IZUMI
September 28, 2017
Programming
1
910
ROM.rb: Another Approach to Persistence
Meguro.rb #7
Seiya IZUMI
September 28, 2017
Tweet
Share
More Decks by Seiya IZUMI
See All by Seiya IZUMI
Node.jsの宣言的マイグレーションツール作った
izumisy
0
33
TailorにおけるSchema-driven UIの実践例
izumisy
0
390
Elm, the functional frontend
izumisy
3
1.1k
Elmの歩き方2019
izumisy
5
3.4k
Our Journey with the Biggest Elm App in Japan
izumisy
0
170
jQueryからElmまで
izumisy
1
1.7k
Ordering and Ordered
izumisy
1
110
Choo: Fun Functional Framework
izumisy
1
510
StackoverflowでREPを稼ぐ技術
izumisy
1
830
Other Decks in Programming
See All in Programming
AI Coding Meetup #3 - 導入セッション / ai-coding-meetup-3
izumin5210
0
370
CSC305 Lecture 01
javiergs
PRO
1
390
dynamic!
moro
9
6k
いま中途半端なSwift 6対応をするより、Default ActorやApproachable Concurrencyを有効にしてからでいいんじゃない?
yimajo
2
320
CSC509 Lecture 01
javiergs
PRO
1
430
どの様にAIエージェントと 協業すべきだったのか?
takefumiyoshii
1
580
CSC305 Lecture 04
javiergs
PRO
0
230
あなたの知らない「動画広告」の世界 - iOSDC Japan 2025
ukitaka
0
360
Pythonスレッドとは結局何なのか? CPython実装から見るNoGIL時代の変化
curekoshimizu
4
1.2k
SpecKitでどこまでできる? コストはどれくらい?
leveragestech
0
480
エンジニアとして高みを目指す、 利益を生み出す設計の考え方 / design-for-profit
minodriven
23
12k
大規模アプリのDIフレームワーク刷新戦略 ~過去最大規模の並行開発を止めずにアプリ全体に導入するまで~
mot_techtalk
0
370
Featured
See All Featured
Why Our Code Smells
bkeepers
PRO
339
57k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
3.1k
Building an army of robots
kneath
306
46k
What's in a price? How to price your products and services
michaelherold
246
12k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
358
30k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.1k
Practical Orchestrator
shlominoach
190
11k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
Documentation Writing (for coders)
carmenintech
75
5k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4k
Writing Fast Ruby
sferik
629
62k
Transcript
ROM.rb: Another Approach to Persistence Seiya IZUMI (@sy_izumi)
About me • ଂେֶ4 • 1ؒٳֶͯ͠ITاۀͰΊͪΌͪ͘ΌΠϯλʔ ϯͨ͠Γͨ͠ • ීஈVue.jsReactNativeͳͲΛ৮ͬͯ·͢ @sy_izumi
IzumiSy
ࠓROM.rbͷͳ͠Λ͠·͢
RailsΞϓϦέʔγϣϯΛ࡞͍ͬͯͯ • Model͕σʔλϕʔεʹର͢Δૢ࡞ͱɺυϝΠ ϯର͢Δૢ࡞ͱ͍͏̎ͭͷΛ͕࣋ͪͪʹ ͳΔ͜ͱ͕ଟ͍ • Ϟσϧ͕࣮࣭ɺӬଓԽϨΠϠͱૄ݁߹ database schema ≒
domain model
ActiveRecordͷ͍ͤͰͳ͍ • ActiveRecordύλʔϯʹ͓͍ͯɺϞσϧ͕ ӬଓԽϨΠϠͷߏͱಉ͡Ͱ͋Δͱ͍͏͜ͱ རɻ • ϦϑΝΫλϦϯάύλʔϯͳͲʹΑͬͯదͳ ରॲ͕Ͱ͖Δ (FormObject, Validator,
Callback,etc …)
ʮAR͡Όͳ͍ͱμϝʯͰͳ͍ • ϦϑΝΫλϦϯάύλʔϯΛۦͯ͠ ActiveRecordΛ͍͜ͳ͢ͷͻͱͭͷબ • Ͱɺ͔ͨ͠͠ΒସʹͳΔΑ͏ͳҟͳΔ ࢥͷORϚούʔ͕͋Δ͔ʂ • άάͬͯΈΔ
͋ͬͨ
ROM.rbͱ • RubyΞϓϦέʔγϣϯͷͨΊͷӬଓԽϥΠϒ ϥϦ • ୯ͳΔORϚούʔͰͳ͘ɺ༷ʑͳӬଓԽ ஔΛϓϥΨϒϧͳΞμϓλͱͯ͑͠Δ • Separating persistence
from domain layer
ϔΩαΰφϧɾΞʔΩςΫνϟ http://blog.tai2.net/hexagonal_architexture.html
ӬଓԽΛͲ͏ଊ͑Δ͔ʁ User.create(name: “Bob”) POST https://api.stripe.com/v1/charges
ӬଓԽϨΠϠͱૄ݁߹ੑ • ΞϓϦέʔγϣϯͷ֎෦ʹ͋Δஔͷૢ࡞ํ ๏ʹؔͯ͠Ͱ͖Δ͚ͩૄ݁߹ʹ͢Δ • WebAPI͍ͭ·Ͱ͑ΔͱݶΒͳ͍ ʢcf. WebPayͷαʔϏεऴྃ in 2016ʣ
• ΞϓϦέʔγϣϯ͕ϏδωεҎ֎ͷͷʹґ ଘ͠ॊೈੑ͕ࣦΘΕΔͷΛආ͚Δ
How to use ROM.rb?
Architecture .PEFM 3FQPTJUPSZ 3FMBUJPO "EBQUFS Infratructure Layer Domain Layer
Architecture 1030 ROM::Repository ROM::Relation ROM::Gateway Infratructure Layer Domain Layer
Model module Domain class Book attr_reader :id, :title, :price def
initialize(attrs) @id, @title, @price = attrs.values_at(:id, :title, :price) end end end • POROͳΞϓϦέʔγϣϯݻ༗ͷϩδοΫΛ࣋ͭ • ଟ͘ͷ߹RepositoryʹΑͬͯੜ͞ΕΔ • ROM.rb͕͜͜ʹ༩͑ΔӨڹ࠷খݶ
Repository module Repository class Book < ROM::Repository[:books] def by_id(id) books.by_pk(id).map_to(Domain::Books).one!
end def all books.map_to(Domain::Book) end end end • υϝΠϯϨΠϠͱӬଓԽϨΠϠͷ૭ޱʹͳΔ෦ • υϝΠϯʹదͳΦϒδΣΫτΛੜ͠ɺӬଓԽஔʹݻ༗ͳΫΤϦੜ ͳͲRelation͕ͱ͚ͯ͠ෛ͏
Relation class Books < ROM::Relation[:sql] schema(infer: true) do associations do
belongs_to :author end def by_id(id) where(id: id) end def available where(is_available: true) end end end • ӬଓԽϨΠϠͱͯ͠Ξμϓλʹ ର͢Δૢ࡞Λϥοϓ͢Δ • ΞιγΤʔγϣϯϑΟʔϧυ όϦσʔγϣϯͳͲΛ͜͜Ͱఆ ٛ • ରͱͳΔΞμϓλʹݻ༗ͷૢ ࡞͕Ͱ͖Δ • ͜͜Ͱఆٛͨ͠ϝιου܈Λ RepositoryͰ͑Δ
Adapter • ӬଓԽஔͷ۩ମతͳૢ࡞Λߦ͏ • 3rd-partyͷओཁͳAPIΞμϓλ͍͔ͭ͘༻ҙ͞Ε͍ͯΔ • SQLΞμϓλʹSequel͕ϥοϓ͞Ε͍ͯΔ
·ͱΊ
·ͱΊ • ROM.rbӬଓԽϨΠϠͷநԽͱυϝΠϯϨ ΠϠ͔ΒͷΛΨονϦͱαϙʔτͯ͘͠ ΕΔ • υϝΠϯʢϞσϧʣϨΠϠͱӬଓԽϨΠϠΛ ૄ݁߹ʹͯ͠ɺΞϓϦέʔγϣϯΛมԽʹڧ ͘͠Α͏
Ұํ·ͨผͷҙݟ • ͲͷΛͲ͏͚Δ͔ͱ͍͏؍ͷ౷Ұ͕ ग़དྷ͍ͯͳ͍ͱӡ༻ͣ͠Β͍ݒ೦͕͋Δ • ιʔείʔυ͕ࢄΒͬͯݟ௨͕͠ѱ͘ͳΔͱ ͍͏ਓ͍Δ • ΞϓϦέʔγϣϯͷఆنʹ߹Θͤͯద ͳπʔϧΛબͿͷ͕BEST
https://github.com/IzumiSy/sample_bookshelf
Thank You! http://rom-rb.org