refactor:rails

What problem does it solve?

Rails projects frequently accumulate fat controllers and models, making maintenance difficult and error-prone. This skill provides a structured approach to refactor by extracting business logic into service objects, using concerns for shared behavior, and applying query objects for complex database interactions, all while embracing Rails 8 and Ruby 3.3+ features.

Core Features & Use Cases

• DRY & SRP refactoring: Break controllers/models into focused classes; move business logic into services and queries.
• Pattern matching and Data classes: Modern Ruby techniques to simplify conditional logic and value objects.
• Use Case: Refactor a Fat OrdersController into Orders::CreateService, with app/services, app/models/concerns, and app/queries for complex fetches.

Quick Start

Apply this skill to a Rails project with fat controllers and models. Extract business logic into service objects under app/services, move shared logic into concerns, and replace complex queries with query objects, ensuring behavior stays externally visible.