Learn RUBY-ON-RAILS with Real Code Examples
Updated Nov 25, 2025
Architecture
MVC pattern: Models, Views, Controllers
RESTful routing system
Active Record for ORM
Template rendering via ERB or alternatives
Middleware stack for request/response processing
Rendering Model
Client sends HTTP request
Rails routes map request to controller action
Controller fetches data via models
View renders HTML or JSON response
Response sent back to client
Architectural Patterns
MVC full-stack framework
RESTful resource-oriented routing
Active Record ORM for database
Template rendering (ERB, Haml, etc.)
Middleware stack for request processing
Real World Architectures
E-commerce platforms
SaaS applications
RESTful API backends
Social networks
Content management systems
Design Principles
Convention over configuration
DRY (Don't Repeat Yourself)
MVC architecture
Integrated testing and security
Rapid development and maintainability
Scalability Guide
Use Puma or Unicorn web server
Horizontal scaling via load balancers
Database replication and sharding
Background jobs for heavy tasks
Caching layers to improve performance
Migration Guide
Move from Sinatra or Node.js frameworks to Rails
Refactor routes and controllers to Rails conventions
Migrate database schemas to Active Record
Reimplement views in ERB/Haml
Test all functionality with Rails test suite