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
900
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
TailorにおけるSchema-driven UIの実践例
izumisy
0
300
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
160
jQueryからElmまで
izumisy
1
1.6k
Ordering and Ordered
izumisy
1
97
僕が新卒として意識している4つのこと
izumisy
0
120
Choo: Fun Functional Framework
izumisy
1
500
StackoverflowでREPを稼ぐ技術
izumisy
1
820
Other Decks in Programming
See All in Programming
階層化自動テストで開発に機動力を
ickx
1
420
Gemini CLIの"強み"を知る! Gemini CLIとClaude Codeを比較してみた!
kotahisafuru
2
150
状態遷移図を書こう / Sequence Chart vs State Diagram
orgachem
PRO
3
250
GPUを計算資源として使おう!
primenumber
1
290
MCPで実現できる、Webサービス利用体験について
syumai
7
1.9k
抽象化という思考のツール - 理解と活用 - / Abstraction-as-a-Tool-for-Thinking
shin1x1
1
620
フロントエンドのパフォーマンスチューニング
koukimiura
6
2.3k
Vibe Codingの幻想を超えて-生成AIを現場で使えるようにするまでの泥臭い話.ai
fumiyakume
18
9.2k
チームで開発し事業を加速するための"良い"設計の考え方 @ サポーターズCoLab 2025-07-08
agatan
1
490
MySQL9でベクトルカラム登場!PHP×AWSでのAI/類似検索はこう変わる
suguruooki
1
220
コーディングエージェント概観(2025/07)
itsuki_t88
0
130
코딩 에이전트 체크리스트: Claude Code ver.
nacyot
0
990
Featured
See All Featured
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
33
2.4k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
21
1.3k
Rails Girls Zürich Keynote
gr2m
95
14k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.4k
Agile that works and the tools we love
rasmusluckow
329
21k
How to Think Like a Performance Engineer
csswizardry
25
1.8k
Unsuck your backbone
ammeep
671
58k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
Scaling GitHub
holman
461
140k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
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