Rails 3.1实战：TDD与BDD探索

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Rails 3.1实战是一本深入探讨Ruby on Rails 3.1版本的实用指南，由Ryan Bigg和Yehuda Katz两位业界专家合著。这本书是Manning出版社的作品，特别适合那些希望掌握最新版本Rails框架的开发者，特别是关注测试驱动开发（TDD）和行为驱动开发（BDD）的实践者。在Rails 3.1实战中，读者可以学习到一系列关键知识点，如： 1. **MVC架构的升级**：Rails 3.1对Model-View-Controller（MVC）模式进行了优化，提供了更高效、灵活的开发环境，使得应用程序的模块化和可维护性得到了提升。 2. **Test-Driven Development (TDD)**：书中强调了TDD的重要性，指导如何通过编写测试驱动代码来确保功能的正确性和代码质量。这包括使用Rspec和Cucumber等工具进行测试框架的使用和实践。 3. **Behavior Driven Development (BDD)**：作者详细介绍了如何利用BDD方法论，如Cucumber与Rails集成，帮助开发者更好地理解和描述业务逻辑，从而写出更具业务价值的代码。 4. **ActiveRecord ORM增强**：Rails 3.1中的ActiveRecord ORM有了新特性，如改进的数据迁移工具，更好的模型关系处理以及数据库优化，使得数据库操作更为直观和高效。 5. **路由系统升级**：Rails 3.1对URL路由进行了改进，提供了更灵活的路径匹配规则，有助于创建更易于理解的URL结构。 6. **模板引擎和视图设计**：Rails 3.1中的ERb和Haml模板语言有新的特性和优化，开发者能更轻松地构建响应式和优雅的用户界面。 7. **性能优化与安全增强**：书中还会涉及如何在新版本中进行性能调优和安全性加固，如使用缓存、防止SQL注入和XSS攻击等。 8. **部署和运维实践**：对于部署流程和生产环境部署，Rails 3.1提供了新的最佳实践，如Capistrano和Heroku的集成等。此外，Manning出版社提供的资源还包括在线购买链接、折扣信息以及版权声明，提醒读者合法获取和使用书籍内容。对于想要进一步了解和实践Rails 3.1的开发者来说，这本书是不可或缺的参考资料。

preface

This book has been through quite the development process! It began in 2008 with

Michael Ivey, Yehuda Katz, and Ezra Zygmuntowicz and was called Merb in Action. Since

then it has changed name and hands a couple of times, winding up with people such as

James Cox and the great Mike Gunderloy, the latter of whom is probably most famous

for his work on Factsheet Five and many .NET books, not to mention being one of the

founding members of the RailsBridge (http://railsbridge.org) organization.

Then, somehow, I became involved with this book.

I received an email on a cold April morning in 2010 from Christina Rudloff at

Manning asking if I would have any interest in joining the project. I was exceptionally

excited! I had been writing short blog posts about Rails for years, and the idea of

focusing that effort into writing a book made me extremely happy. Long story short:

Yehuda Katz liked what he saw on my blog and wanted me to join the project. Working

with Yehuda has been brilliant. He’s got to be one of the smartest and most patient

people I have ever met.

Shortly after receiving that initial email from Christina, I talked with another per-

son from Manning, Michael Stephens, first via email and then very late at night over

the phone (we are on different continents) about the project. I worked out the initial

chapter layout, and I distinctly remember one thing that Michael asked me: “You

know what you’re getting yourself into, right?” I thought “Sure, I’ve written blog posts

before, how hard could it be?” and replied in much the same manner. How little did

I know!

Since then, I have learned a lot about the book-writing process. For starters, it

involves a lot more than just the two people and the publishing company on the front

ACKNOWLEDGMENTSxviii

gnarly ePub Ruby and XLST code. And yes, thanks to Andrew Snow for assisting with a

difficult moral problem in chapter 16 at Railscamp in June 2011.

In addition to those who’ve been leaving notes in Twist, there are the people at

Manning. First, thanks to Christina Rudloff for the initial contact and Michael Ste-

phens for the late-night chats and management of the process. Candace Gillhooley

and Nick Chase have also been enormously helpful.

Cynthia Kane, my development editor at Manning, is particularly special. Her job

was to tell me when I was doing things wrong, such as not segueing between sections

or making the text flow too fast, and to leave me notes such as “

FIGURE!!!” when I

needed an image to go along with the text. Our almost weekly catch-ups were well

worthwhile; it was great always having someone there, prodding me for more content

and talking through the process. Marjan Bace, fearless leader of Manning Publica-

tions, should also be credited for supporting this project for as long as it has been

around.

The production team at Manning, including Troy Mott, has been great throughout

this process too. The extreme focus they’ve shown in finishing this book is stunning. I

also need to mention the wonderful work by Doug Warren in the final technical

proofing of the book, as well as Manning’s copyeditors, who touched up basically

every single paragraph in the book.

Special thanks to the reviewers who took time out of their busy schedules to pro-

vide feedback on the manuscript at different stages during development. They

include Jason Rogers, Craig Smith, Emmanuel Asante, Chad Moone, Dr. Jamie P. Fin-

lay, Dave Nicolette, Grant Oladipo, Jean-Philippe Castro, Americo Savinon, Thomas

Athanas, Chris Kelly, Greg Vaughn, Pete Helgren, Joshua R Cronemeyer, Peter Melo,

Robby O’Connor, Philip Hallstrom, Curtis Miller, Patrick Peak, Anthony J. Topper,

Brian Rose, Daniel Bretoi, Wesley Moxam, Jon Agnes, and David Workman

Finally, my friends and family have been amazing throughout my entire life, all the

way from my parents—who supported my career choice in Ruby on Rails and techni-

cal writing, even though they paid for me to study Network Admin at

TAFE and always

told me that I should “get out the house more”—to my current housemate, who

accepts that we don’t see much of each other (or at least I think so). You’re all won-

derful people, and I hope now that the book is over I will see more of you. I would list

you all here if only it didn’t require this book to be printed in a multivolume series.

YAN BIGG

Rails 3 in Action is a long-time coming. To give you some perspective, the book was

originally called Merb in Action, and it managed a perpetual beta through the Merb

merge, the release of Rails 3.0, and is finally ready just in time for Rails 3.1.

I can say with confidence that Rails 3 in Action would not exist without the hard,

tireless work of Ryan Bigg. It was Ryan’s idea to focus the book around real-world test-

ing from the ground up, and it makes Rails 3 in Action the first book for Rails practitio-

ners that teaches Rails the way professional Rails developers do it.

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