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Layered Design for Ruby on Rails Applications

You're reading from   Layered Design for Ruby on Rails Applications Discover practical design patterns for maintainable web applications

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Product type Paperback
Published in Aug 2023
Publisher Packt
ISBN-13 9781801813785
Length 298 pages
Edition 1st Edition
Languages
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Author (1):
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Vladimir Dementyev Vladimir Dementyev
Author Profile Icon Vladimir Dementyev
Vladimir Dementyev
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Table of Contents (20) Chapters Close

Preface 1. Part 1: Exploring Rails and Its Abstractions
2. Chapter 1: Rails as a Web Application Framework FREE CHAPTER 3. Chapter 2: Active Models and Records 4. Chapter 3: More Adapters, Less Implementations 5. Chapter 4: Rails Anti-Patterns? 6. Chapter 5: When Rails Abstractions Are Not Enough 7. Part 2: Extracting Layers from Models
8. Chapter 6: Data Layer Abstractions 9. Chapter 7: Handling User Input outside of Models 10. Chapter 8: Pulling Out the Representation Layer 11. Part 3: Essential Layers for Rails Applications
12. Chapter 9: Authorization Models and Layers 13. Chapter 10: Crafting the Notifications Layer 14. Chapter 11: Better Abstractions for HTML Views 15. Chapter 12: Configuration as a First-Class Application Citizen 16. Chapter 13: Cross-Layers and Off-Layers 17. Index
18. Gems and Patterns 19. Other Books You May Enjoy

Summary

In this chapter, you learned about the Ruby on Rails trade-offs introduced by such design patterns as callbacks, Rails concerns, and Current attributes. You learned about different types of callbacks used in Rails controllers and models and how to assess their effect on maintainability. You got familiar with event-driven architecture and how it can be used to untangle models’ responsibilities.

You learned how Rails concerns differ from Ruby modules and how they can be used to extract behaviors from models. You learned the limitations of splitting classes into models and how extracting domain objects can be used as an alternative approach to refactoring models. You also learned about the downsides of having global state and how to minimize them.

In the next chapter, we will take the first step toward new abstraction layers by introducing service objects.

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