ruby-rails-application

Build comprehensive Ruby on Rails applications with proper model associations, RESTful controllers, Active Record queries, authentication systems, middleware chains, and view rendering following Rails conventions. Minimal working example: Detailed implementations in the references/ directory: - Overview - When to Use - Quick Start - Reference Guides - Best Practices - Building Rails web applications - Implementing Active Record models with associations - Creating RESTful controllers and actions - Integrating authentication and authorization - Building complex database relationships - Implementing Rails middleware and filters - Use conventions over configuration - Leverage Active Record associations - Implement proper scopes for queries - Use strong parameters for security - Implement authentication in ApplicationController - Use services for complex business logic - Implement proper error handling - Use database migrations for schema changes - Validate all inputs at model level - Use before_action filters appropriately - Use raw SQL without parameterization - Implement business logic in controllers - Trust user input without validation - Store secrets in code - Use select * without specifying columns - Forget N+1 query problems (use includes/joins) - Implement authentication in each controller - Use global variables - Ignore database constraints