It's better than Agile Web Development w/Rails (despite the grammatical error in the first sentence of the foreword -- don't judge it by that). It is also an intermediate to semi-advanced text, so don't expect a tutorial on how to build a shopping cart.
I particularly enjoyed some of the sidebar quips -- "Wilson says... Writing applications without tests makes you a bad person, incapable of love." -- although I don't necessarily agree with them all.
The chapters on controllers, routing, views are decent. I've read the ActionPack/ActiveSupport source and this is easier to digest (along with appendix A). The four chapters on ActiveRecord are as boring as, well, ActiveRecord. What can you do?
I find the code generated by Rails's Ajax helpers very ugly & obtrusive, so I skipped that chapter. Learn Javascript, or at least a decent JS library like jQuery or YUI. Actually, I've got nothing against Prototype or Mootools either, just the way Rails embeds it.
Similarly, skip the Testing chapter and jump straight to the one on RSpec.
Finally, the production configuration and deployment chapters, like much of the book, offer some good advice that will save you time. I've learned from experience and trial & error much of what Obie says here, and it would have been great to have this cheatsheet 6-8 months ago. Better late than never!
I tried reading this book years ago when I was just starting off my career as a software engineer and became overwhelmed with the information. Now, as a senior engineer I found this was much easier to read. This book gave me a deeper understanding of what is going behind the scenes when using the rails framework. It is very detailed and is a good reference book to have on hand.
Its ok, though i usually use the online rdocs instead, since rails is under such heavy development I don't think its practical to buy any rails book thats over 3 months old.
This guy definitely is a better coder than dave thomas.
Great book that finally made the Rails web application framework (http://en.wikipedia.org/wiki/Ruby_on_...) truly understandable to me. I read the Pragmatic Rails book, but it was not as clear and detailed as this book.
The ultimate Rails desk reference. Essential for anyone looking to develop quality Rails apps. The book will increase programming productivity and enjoyment with well thought written examples. Covers Rails 2.0, Testing, Ajax, E-Mail, deployment... etc.
This is the original version of the book, there is a newer one that has come out. Great reference for the Rails framework but tougher to read if you are looking for a tutorial.