Ruby on Rails Tutorial

Foreword to the First Edition by Derek Sivers xv Foreword to the First Edition 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 27 1.4 Deploying 39 1.5 Conclusion 43 Chapter 2: A Demo App 45 2.1 Planning the Application 45 2.2 The Users Resource 49 2.3 The Microposts Resource 63 2.4 Conclusion 74 Chapter 3: Mostly Static Pages 77 3.1 Static Pages 82 3.2 Our First Tests 93 3.3 Slightly Dynamic Pages 103 3.4 Conclusion 114 3.5 Exercises 114 3.6 Advanced Setup 117 Chapter 4: Rails-Flavored Ruby 129 4.1 Motivation 129 4.2 Strings and Methods 134 4.3 Other Data Structures 142 4.4 Ruby Classes 153 4.5 Conclusion 164 4.6 Exercises 164 Chapter 5: Filling in the Layout 167 5.1 Adding Some Structure 167 5.2 Sass and the Asset Pipeline 187 5.3 Layout Links 197 5.4 User Signup: A First Step 211 5.5 Conclusion 215 5.6 Exercises 217 Chapter 6: Modeling Users 221 6.1 User Model 222 6.2 User Validations 236 6.3 Adding a Secure Password 254 6.4 Conclusion 267 6.5 Exercises 268 Chapter 7: Sign Up 271 7.1 Showing Users 271 7.2 Signup Form 292 7.3 Signup Failure 303 7.4 Signup Success 312 7.5 Conclusion 321 7.6 Exercises 321 Chapter 8: Sign In, Sign Out 325 8.1 Sessions and Signin Failure 325 8.2 Signin Success 343 8.3 Introduction to Cucumber (Optional) 363 8.4 Conclusion 371 8.5 Exercises 372 Chapter 9: Updating, Showing, and Deleting Users 373 9.1 Updating Users 373 9.2 Authorization 385 9.3 Showing All Users 396 9.4 Deleting Users 413 9.5 Conclusion 422 9.6 Exercises 424 Chapter 10: User Microposts 429 10.1 A Micropost Model 429 10.2 Showing Microposts 445 10.3 Manipulating Microposts 454 10.4 Conclusion 479 10.5 Exercises 480 Chapter 11: Following Users 483 11.1 The Relationship Model 484 11.2 A Web Interface for Following Users 503 11.3 The Status Feed 529 11.4 Conclusion 539 11.5 Exercises 543 Index 545

Michael Hartl is the author of the Ruby on Rails(TM) Tutorial, the leading introduction to web development with Ruby on Rails. His prior experience includes writing and developing RailsSpace, an extremely obsolete Rails tutorial book, and developing Insoshi, a once-popular and now-obsolete social networking platform in Ruby on Rails. In 2011, Michael received a Ruby Hero Award for his contributions to the Ruby community. He is a graduate of Harvard College, has a Ph.D. in Physics from Caltech, and is an alumnus of the Y Combinator entrepreneur program.

"My former company (CD Baby) was one of the first to loudly switch to Ruby on Rails, and then even more loudly switch back to PHP (Google me to read about the drama). This book by Michael Hartl came so highly recommended that I had to try it, and the Ruby on Rails(TM) Tutorial is what I used to switch back to Rails again." -From the Foreword by Derek Sivers (sivers.org), formerly, Founder, CD Baby; currently, Founder, Thoughts Ltd. "Michael Hartl's Rails Tutorial book is the #1 (and only, in my opinion) place to start when it comes to books about learning Rails... It's an amazing piece of work and, unusually, walks you through building a Rails app from start to finish with testing. If you want to read just one book and feel like a Rails master by the end of it, pick the Ruby on Rails(TM) Tutorial." -Peter Cooper, editor, Ruby Inside "Grounded in the real world." -I Programmer (www.i-programmer.info), by Ian Elliot "The book gives you the theory and practice, while the videos focus on showing you in person how it's done. Highly recommended combo." -Antonio Cangiano, Software Engineer, IBM "The author is clearly an expert at the Ruby language and the Rails framework, but more than that, he is a working software engineer who introduces best practices throughout the text." -Greg Charles, Senior Software Developer, Fairway Technologies "Overall, these video tutorials should be a great resource for anyone new to Rails." -Michael Morin, ruby.about.com "Hands-down, I would recommend this book to anyone wanting to get into Ruby on Rails development." -Michael Crump, Microsoft MVP