“Ruby on Rails™ 3 Tutorial: Learn Rails by Example by Michael Hartl has become a must read for developers learning how to build Rails apps.” —Peter Cooper, Editor of Ruby Inside   Using Rails 3, developers can build web applications of exceptional elegance and power. Although its remarkable capabilities have made Ruby on Rails one of the world’s most popular web development frameworks, it can be challenging to learn and use. Ruby on Rails™ 3 Tutorial is the solution. Leading Rails developer Michael Hartl teaches Rails 3 by guiding you through the development of your own complete sample application using the latest techniques in Rails web development.   Drawing on his experience building RailsSpace, Insoshi, and other sophisticated Rails applications, Hartl illuminates all facets of design and implementation—including powerful new techniques that simplify and accelerate development.   You’ll find integrated tutorials not only for Rails, but also for the essential Ruby, HTML, CSS, JavaScript, and SQL skills you’ll need when developing web applications. Hartl explains how each new technique solves a real-world problem, and he demonstrates this with bite-sized code that’s simple enough to understand, yet novel enough to be useful. Whatever your previous web development experience, this book will guide you to true Rails mastery.   This book will help you Install and set up your Rails development environment Go beyond generated code to truly understand how to build Rails applications from scratch Learn Test Driven Development (TDD) with RSpec Effectively use the Model-View-Controller (MVC) pattern Structure applications using the REST architecture Build static pages and transform them into dynamic ones Master the Ruby programming skills all Rails developers need Define high-quality site layouts and data models Implement registration and authentication systems, including validation and secure passwords Update, display, and delete users Add social features and microblogging, including an introduction to Ajax Record version changes with Git and share code at GitHub Simplify application deployment with Heroku

Table of Contents:
Foreword by Derek Sivers         xv Foreword by Obie Fernandez         xvii Acknowledgments         xix About the Author         xxi   Chapter 1: From Zero to Deploy         1 1.1 Introduction   3 1.2 Up and Running   9 1.3 Version Control with Git   24 1.4 Deploying   35 1.5 Conclusion   40   Chapter 2: A Demo App         41 2.1 Planning the Application   41 2.2 The Users Resource   44 2.3 The Microposts Resource   58 2.4 Conclusion   69   Chapter 3: Mostly Static Pages          71 3.1 Static Pages   74 3.2 Our First Tests   84 3.3 Slightly Dynamic Pages   103 3.4 Conclusion   115 3.5 Exercises   116   Chapter 4: Rails-Flavored Ruby         119 4.1 Motivation   119 4.2 Strings and Methods   125 4.3 Other Data Structures   134 4.4 Ruby Classes   144 4.5 Exercises   154   Chapter 5: Filling in the Layout         157 5.1 Adding Some Structure   157 5.2 Layout Links   177 5.3 User Signup: A First Step   186 5.4 Conclusion   191 5.5 Exercises   191   Chapter 6: Modeling and Viewing Users, Part I         193 6.1 User Model   194 6.2 User Validations   210 6.3 Viewing Users   227 6.4 Conclusion   236 6.5 Exercises   237   Chapter 7: Modeling and Viewing Users, Part II         239 7.1 Insecure Passwords   239 7.2 Secure Passwords   250 7.3 Better User Views   262 7.4 Conclusion   279 7.5 Exercises   280   Chapter 8 Sign Up 283 8.1 Signup Form 283 8.2 Signup Failure 292 8.3 Signup Success 305 8.4 RSpec Integration Tests 313 8.5 Conclusion 321 8.6 Exercises 321   Chapter 9: Sign In, Sign Out         325 9.1 Sessions  325 9.2 Signin Failure   332 9.3 Signin Success   338 9.4 Signing Out   354 9.5 Conclusion   363 9.6 Exercises   363   Chapter 10: Updating, Showing, and Deleting Users         365 10.1 Updating Users   365 10.2 Protecting Pages   376 10.3 Showing Users   384 10.4 Destroying Users   399 10.5 Conclusion   408 10.6 Exercises   409   Chapter 11: User Microposts         411 11.1 A Micropost Model   411 11.2 Showing Microposts   425 11.3 Manipulating Microposts   434 11.4 Conclusion   457 11.5 Exercises   458   Chapter 12: Following Users         461 12.1 The Relationship Model   463 12.2 A Web Interface for Following and Followers   482 12.3 The Status Feed   507 12.4 Conclusion   519 12.5 Exercises   523   Index         527