Hanami for Rails Developers: Part 2: Controllers

This tutorial demonstrates how Hanami handles web requests differently than Rails by splitting controller logic between separate "actions" and "views" classes. Hanami actions handle request parameters and decide which view to render, while views gather and present data through templates. The tutorial shows how to create routes for displaying books, including a parameterized route that filters books by year, with database queries placed in view classes rather than actions. This separation allows actions to make routing decisions before any database work occurs, creating a clearer division of responsibilities.