About
This skill provides a comprehensive framework for building robust and performant database layers within Ruby on Rails applications. It guides developers through the implementation of core Active Record principles, including sophisticated model associations, data integrity via validations, and advanced query techniques like eager loading and batch processing. By following these established patterns, developers can avoid common performance bottlenecks like N+1 queries, manage complex application states with enums, and ensure long-term maintainability through modular concerns and transactional safety.