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 Storage OverviewThis guide covers how to attach files to your Active Record models.After reading this guide, you will know: How to attach one or many files to a record. How to delete an attached file. How to link to an attached file. How to use variants to transform images. How to generate an image representation of a non-image file, such as a PDF or a video. How to send file uploads directly from browsers to a storage service, bypassing your application servers. How to clean up files ...| Ruby on Rails Guides
Debugging Rails ApplicationsThis guide introduces techniques for debugging Ruby on Rails applications.After reading this guide, you will know: The purpose of debugging. How to track down problems and issues in your application that your tests aren't identifying. The different ways of debugging. How to analyze the stack trace.| Ruby on Rails Guides
The Asset PipelineThis guide explains how to handle essential asset management tasks.After reading this guide, you will know: What is an asset pipeline. The main features of Propshaft, and how to set it up. How to migrate from Sprockets to Propshaft. How to use other libraries for more advanced asset management.| Ruby on Rails Guides
Action View OverviewAfter reading this guide, you will know: What Action View is and how to use it with Rails. How best to use templates, partials, and layouts. How to use localized views.| Ruby on Rails Guides
Autoloading and Reloading ConstantsThis guide documents how autoloading and reloading works in zeitwerk mode.After reading this guide, you will know: Related Rails configuration Project structure Autoloading, reloading, and eager loading Single Table Inheritance And more| Ruby on Rails Guides
Action Text OverviewThis guide provides you with all you need to get started in handling rich text content.After reading this guide, you will know: What Action Text is, and how to install and configure it. How to create, render, style, and customize rich text content. How to handle attachments.| Ruby on Rails Guides
Testing Rails ApplicationsThis guide covers built-in mechanisms in Rails for testing your application.After reading this guide, you will know: Rails testing terminology. How to write unit, functional, integration, and system tests for your application. Other popular testing approaches and plugins.| 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
Caching with Rails: An OverviewThis guide is an introduction to speeding up your Rails application with caching.After reading this guide, you will know: What caching is. The types of caching strategies. How to manage the caching dependencies. Solid Cache - a database-backed Active Support cache store. Other cache stores. Cache keys. Conditional GET support.| Ruby on Rails Guides
Active Record BasicsThis guide is an introduction to Active Record.After reading this guide, you will know: How Active Record fits into the Model-View-Controller (MVC) paradigm. 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. Active Record schema naming conventions. The concepts of database migrations, validations, callbacks, and associations.| Ruby on Rails Guides
Action View HelpersAfter reading this guide, you will know: How to format dates, strings, and numbers. How to work with text and tags. How to link to images, videos, stylesheets, etc. How to work with Atom feeds and JavaScript in the views. How to cache, capture, debug and sanitize content.| Ruby on Rails Guides
