This guide describes how to debug Rails applications. It covers the different ways of achieving this and how to understand what is happening "behind the scenes" of your code.

1. Introduction Welcome to Ruby on Rails! In this guide, we'll walk through the core concepts of building web applications with Rails. You don't need any experience with Rails to follow along with this guide. …

You should also first upgrade to Rails 8.0 in case you haven't and make sure your application still runs as expected before attempting an update to Rails 8.1. A list of things to watch out for when …

This guide will walk you through installing the Ruby programming language and the Rails framework on your operating system. While your OS might come with Ruby pre-installed, it's often outdated and …

This guide covers the configuration and initialization features available to Rails applications.After reading this guide, you will know: How to adjust the behavior of your Rails applications.

Rails is a web application framework running on the Ruby programming language. If you have no prior experience with Ruby, you will find a very steep learning curve diving straight into Rails.

Once an incoming request is matched to a controller by the router, Rails creates an instance of that controller class and calls the method with the same name as the action.

After reading this guide, you will know: How to create a new Rails application with the rails-new tool. How to begin working with your application in a development container.

Before Rails 8, the asset pipeline was powered by Sprockets. You can read about the Sprockets Asset Pipeline in previous versions of the Rails Guides. You can also explore the evolution of asset …

Check the Ruby on Rails Guides Guidelines for style and conventions. If for whatever reason you spot something to fix but cannot patch it yourself, please open an issue. And last but not least, any kind of …