Lecture 8: Models and Validation

In this lesson, we explore how to work with models, validations, and associations in Ruby on Rails. Learn how Active Record connects your app to the database, how to create and validate models, and how associations like has_many and belongs_to simplify your code.

We also cover callbacks, database indexes, and how to test your models effectively. Perfect for anyone learning Rails 8 or revisiting the fundamentals of MVC structure.