Action Controller OverviewIn this guide, you will learn how controllers work and how they fit into the request cycle in your application.After reading this guide, you will know how to: Follow the flow of a request through a controller. Access parameters passed to your controller. Use Strong Parameters and permit values. Store data in the cookie, the session, and the flash. Work with action callbacks to execute code during request processing. Use the Request and Response Objects.| Ruby on Rails Guides
Rails Routing from the Outside InThis guide covers the user-facing features of Rails routing.After reading this guide, you will know: How to interpret the code in config/routes.rb. How to construct your own routes, using either the preferred resourceful style or the match method. How to declare route parameters, which are passed onto controller actions. How to automatically create paths and URLs using route helpers. Advanced techniques such as creating constraints and mounting Rack endpoints.| Ruby on Rails Guides
Learn how to use "Rails config x" and add your own configuration options to your Rails app with built-in methods, ActiveSupport::OrderedOptions, and practical use cases.| Joy of Rails
Securing Rails ApplicationsThis guide describes common security problems in web applications and how to avoid them with Rails.After reading this guide, you will know: How to use the built-in authentication generator. All countermeasures that are highlighted. The concept of sessions in Rails, what to put in there and popular attack methods. How just visiting a site can be a security problem (with CSRF). What you have to pay attention to when working with files or providing an administration in...| Ruby on Rails Guides
Active Support Core ExtensionsActive Support is the Ruby on Rails component responsible for providing Ruby language extensions and utilities.It offers a richer bottom-line at the language level, targeted both at the development of Rails applications, and at the development of Ruby on Rails itself.After reading this guide, you will know: What Core Extensions are. How to load all extensions. How to cherry-pick just the extensions you want. What extensions Active Support provides.| Ruby on Rails Guides
Action View Form HelpersForms are a common interface for user input in web applications. However, form markup can be tedious to write and maintain because of the need to handle form controls, naming, and attributes. Rails simplifies this by providing view helpers, which are methods that output HTML form markup. This guide will help you understand the different helper methods and when to use each.After reading this guide, you will know: How to create basic forms, such as a search form. How to ...| Ruby on Rails Guides
Active Record EncryptionThis guide covers encrypting your database information using Active Record.After reading this guide, you will know: How to set up database encryption with Active Record. How to migrate unencrypted data. How to make different encryption schemes coexist. How to use the API. How to configure the library and how to extend it.| Ruby on Rails Guides
Getting Started with RailsThis guide covers getting up and running with Ruby on Rails.After reading this guide, you will know: How to install Rails, create a new Rails application, and connect your application to a database. The general layout of a Rails application. The basic principles of MVC (Model, View, Controller) and RESTful design. How to quickly generate the starting pieces of a Rails application. How to deploy your app to production using Kamal.| Ruby on Rails Guides
Active Record Query InterfaceThis guide covers different ways to retrieve data from the database using Active Record.After reading this guide, you will know: How to find records using a variety of methods and conditions. How to specify the order, retrieved attributes, grouping, and other properties of the found records. How to use eager loading to reduce the number of database queries needed for data retrieval. How to use dynamic finder methods. How to use method chaining to use multiple Acti...| Ruby on Rails Guides
Configuring Rails ApplicationsThis 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. How to add additional code to be run at application start time.| Ruby on Rails Guides
