DevelClan

Where developers level up through deep technical content on Ruby on Rails, software architecture, and backend development. Interactive quizzes included.

[DevelClan @develclan]

A conditional that keeps growing is a design problem, not a style problem. How to turn each branch into an object, one green step at a time.

https://t.co/c9aVlV5MAQ

[DevelClan @develclan]

Three rules turn duplication into abstractions through tiny steps, and catch false abstractions before they ever reach the code.

https://t.co/3dCWq5izO5

[DevelClan @develclan]

Creating objects is a responsibility too. What problem a factory actually solves, how the Simple Factory differs from the GoF's Factory Method, and how Ruby simplifies both because classes are objects.

https://t.co/KQXY6G7JfV

[DevelClan @develclan]

Faced with a new problem, the elegant solution is almost always premature. Why simple code that passes the tests is the best starting point, and how to get there with TDD.

https://t.co/TeF7vNKbCj

[DevelClan @develclan]

How to write Ruby tests that survive refactoring: what to test, what to ignore, and how to keep doubles from going stale.

https://t.co/FvHbAZvCQo

[DevelClan @develclan]

Building complex objects in Ruby with composition and modules as roles, and knowing when each one beats inheritance for your design.

https://t.co/nXIKSgXKqJ

[DevelClan @develclan]

When to reach for duck typing and when for inheritance in Ruby. Template Method, hook messages, and the signals that point to a hidden abstraction.

https://t.co/mJCkQQFr30

[DevelClan @develclan]

Shift the focus from classes to conversations: sequence diagrams, stable interfaces, the Law of Demeter, and practical decoupling techniques in Ruby.

https://t.co/paPlwxVgG2

[DevelClan @develclan]

Learn how to implement the Singleton pattern in Ruby: built-in module, manual approach, thread safety, the class variable trap, and dependency injection.

https://t.co/toZZuKPwYU

[DevelClan @develclan]

Explore the philosophy behind software design: preserving changeability, measuring code friction, and balancing technical debt with over-engineering.

https://t.co/WDxmAHMALm

[DevelClan @develclan]

The Dependency Inversion Principle in Ruby: what it really means, when to use dependency injection, and when to keep your code simple.

https://t.co/CLmQkyhnVU

[DevelClan @develclan]

How to apply the Interface Segregation Principle in Ruby, and why taking it too far can hurt your design. Practical examples and trade-offs.

https://t.co/fJgag2VQQ8

[DevelClan @develclan]

Master the Liskov Substitution Principle in Ruby. Learn to spot structural violations, handle duck typing, and write better object-oriented code.

https://t.co/sRl6VIlGSg

[DevelClan @develclan]

Explore the Open-Closed Principle in Ruby through practical examples using inheritance and the Strategy pattern. Learn how to balance strict SOLID adherence with pragmatic design decisions.

https://t.co/kbboRIk0lM

[DevelClan @develclan]

Master Value Objects in Ruby using the modern Data.define class. Learn about immutability, value equality, and how to eliminate boilerplate code for cleaner, safer domain modeling.

https://t.co/DBlYC3tka1

[DevelClan @develclan]

Should a Ruby class do just one thing? Explore the Single Responsibility Principle, cohesion, and when to split classes through practical examples.

https://t.co/KycfOZur18

[DevelClan @develclan]

@KULKING Excellent point! For huge datasets, you're right that loading everything into memory has its own costs.
It could be solved using pagination, selecting only the needed columns, or loading in chunks.

[DevelClan @develclan]

Master the N+1 problem in Active Record. Understand when to use joins, includes, or both to optimize Rails database queries and boost performance.

https://t.co/WYbKkGAvnS

[DevelClan @develclan]

@viktorianer4 Good point! `references` is useful when you need to ensure a LEFT JOIN with conditions. Worth noting that in modern Rails, `includes` often handles this automatically, but `references` gives you explicit control when needed.

[DevelClan @develclan]

@bradgessler SQLite is great for small apps, but N+1 is still inefficient even there. No network latency helps, but you're still hitting the disk 1,000+ times vs once.