Layered Design for Ruby on Rails Applications
Packt Publishing Limited (Verlag)
978-1-80611-423-8 (ISBN)
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Key Features
Understand Rails’ architectural patterns, their strengths and limits
Organize business logic in Rails apps when the default MVC approach is insufficient
Introduce abstractions to integrate and manage AI features effectively
Purchase of the print or Kindle book includes a free PDF eBook
Book DescriptionRuby on Rails accelerates web development with its convention-over-configuration principle and model-view-controller (MVC) pattern. But as your app grows, that simplicity can turn into tangled complexity, making it harder to maintain and extend. The second edition of Layered Design for Ruby on Rails Applications helps you tackle this challenge head-on, guiding you toward a more scalable and maintainable architecture.
Written by a seasoned software engineer and open-source contributor to Ruby and Rails, this updated edition refines the proven techniques from the first edition and introduces timely new topics that reflect today’s development challenges. You’ll dive deeper into state machines and workflows, learning how to identify, embed, and eventually isolate them for clarity and resilience. You’ll also explore the exciting frontier of abstractions in the AI era, treating LLMs as APIs, structuring agent layers, and integrating third-party libraries to keep your AI features organized and testable.
By embracing layered abstractions, you’ll not only reduce complexity but also improve your ability to adapt to change - whether adding new features, scaling systems, or weaving AI capabilities into your applications.
By the end of the book, you’ll be equipped to design Rails applications that remain clean, extensible, and future-ready.What you will learn
Get to grips with Rails' core components and its request/response cycle
See how Rails' convention-over-configuration shapes development
Explore patterns for flexibility, extensibility, and testability in Rails
Identify and refactor Rails anti-patterns for improved maintainability
Implement patterns for taming bloated models and messy views
Transition from implicit to explicit state machines and workflows
Treat LLMs as APIs and extract agent layers for AI-powered features
Use third-party libraries and RAG strategies to manage AI context effectively
Who this book is forThis book is for Rails developers who want to manage and master the growing complexity of their applications. Whether you’re extending an MVP into a robust system, scaling a monolithic app, or exploring AI-driven features, this book equips you with the design patterns and abstractions to keep your codebase future-proof. A solid understanding of Rails principles is required, and prior experience building Rails apps will help you put these patterns into practice.
Vladimir Dementyev has been working on web applications for more than 10 years and launched his first Ruby on Rails project back in 2014. Since then, he has been working on a dozen of Rails web applications, used by hundreds of millions of customers, monolithic or component-based, following the Rails way or trying to swim against the current. He has been an active member of Rails open-source community since 2015, becoming a regular Rails contributor, a RailsConf speaker, and the author of dozens of gems, including AnyCable, TestProf, and Action Policy to name a few. For his work on the Ruby Next project, the author got the Fukuoka Ruby Award for outstanding performance in 2021. Currently, he's leading the backend developers' team at Evil Martians, helping dozens of web projects around the world build better software.
Table of Contents
Rails as a Web Application Framework
Active Models and Records
More Adapters, Less Implementations
Rails Anti-Patterns
When Rails Abstractions Are Not Enough
Data Layer Abstractions
State Transitions and Workflows
Handling User Input outside of Models
Pulling Out the Representation Layer
Authorization Models and Layers
Crafting the Notifications Layer
Better Abstractions for HTML Views
Abstractions in the AI era
Configuration as a First-Class Application Citizen
Cross-Layers and Off-Layers
Appendix: Gems and Patterns
| Erscheinungsdatum | 10.10.2025 |
|---|---|
| Verlagsort | Birmingham |
| Sprache | englisch |
| Maße | 191 x 235 mm |
| Themenwelt | Mathematik / Informatik ► Informatik ► Programmiersprachen / -werkzeuge |
| Informatik ► Software Entwicklung ► SOA / Web Services | |
| Mathematik / Informatik ► Informatik ► Theorie / Studium | |
| Mathematik / Informatik ► Informatik ► Web / Internet | |
| ISBN-10 | 1-80611-423-2 / 1806114232 |
| ISBN-13 | 978-1-80611-423-8 / 9781806114238 |
| Zustand | Neuware |
| Informationen gemäß Produktsicherheitsverordnung (GPSR) | |
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