Ruby on Rails Guides

These guides are designed to make you immediately productive with Rails, and to help you understand how all of the pieces fit together. There are two different versions of the Guides site, and you should be sure to use the one that applies to your situation:

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-Edge Rails version - based on the Rails 2.3 branch -
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- -	This page is the result of ongoing Rails Guides hackfest and a work in progress.

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- -	Guides marked with this icon are currently being worked on. While they might still be useful to you, they may contain incomplete information and even errors. You can help by reviewing them and posting your comments and corrections at the respective Lighthouse ticket.

Start Here

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Everything you need to know to install Rails and create your first application.

Models

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This guide covers how you can use Active Record migrations to alter your database in a structured and organized manner.

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This guide covers how you can use Active Record validations and callbacks.

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This guide covers all the associations provided by Active Record.

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This guide covers the database query interface provided by Active Record.

Views

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This guide covers the basic layout features of Action Controller and Action View, -including rendering and redirecting, using content_for blocks, and working -with partials.

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Guide to using built in Form helpers.

Controllers

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This guide covers the user-facing features of Rails routing. If you want to -understand how to use routing in your own Rails applications, start here.

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This guide covers how controllers work and how they fit into the request cycle in your application. It includes sessions, filters, and cookies, data streaming, and dealing with exceptions raised by a request, among other topics.

Digging Deeper

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This guide describes how to use Action Mailer to send and receive emails.

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This is a rather comprehensive guide to doing both unit and functional tests -in Rails. It covers everything from “What is a test?” to the testing APIs. -Enjoy.

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This guide describes common security problems in web applications and how to -avoid them with Rails.

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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.

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This guide covers ways to benchmark and profile your Rails application.

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This guide covers how to build a plugin to extend the functionality of Rails.

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This guide introduces you to the basic concepts and features of the Rails I18n API and shows you how to localize your application.

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This guide covers the basic configuration settings for a Rails application.

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This guide covers the command line tools and rake tasks provided by Rails.

Authors who have contributed to complete guides are listed here.

This work is licensed under a Creative Commons Attribution-Share Alike 3.0 License

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Ruby on Rails

Sustainable productivity for web-application development

Ruby on Rails Guides

Start Here

Models

Views

Controllers

Digging Deeper