rails:refactor

What problem does it solve?

Identifies fat controllers, god models, repeated query chains, complex form handling, and display logic in Ruby on Rails projects and provides structured extraction patterns to reduce complexity, improve testability, and enforce single responsibility.

Core Features & Use Cases

• Service Extraction: Move controller and model business logic into focused service objects that follow project initialization and call conventions.
• Concern Extraction: Isolate cohesive model behavior into ActiveSupport::Concern modules for clarity and reuse.
• Query/Form/Presenter Patterns: Replace repeated query chains with query objects, encapsulate multi-model form handling into form objects, and move display logic into DelegateClass wrappers or presenters.
• Test & Verification Guidance: Create or update specs, run affected test suites, and lint new code to ensure behavior is preserved.
• Use Case: Convert a 45-line OrdersController#create that handles validation, payment, and notifications into a slim controller and an OrderCreationService with accompanying specs.

Quick Start

Ask to refactor OrdersController#create by extracting an OrderCreationService, list files to create and modify, and provide the before/after code changes.