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 …

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.

Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.

After reading this guide, you will know how to use the Rails command line: To create a Rails application. To generate models, controllers, tests, and database migrations.

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.

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, …

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.

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.

What Object Relational Mapping and Active Record patterns are and how they are used in Rails. How to use Active Record models to manipulate data stored in a relational database.