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The Definitive Guide to Grails 2 2013th Edition
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Written for a beginner to Grails/Groovy, it's probably the first book to get on the subject if you are going to start with Grails. Has a good depth of topics covering just about all aspects of the Grails framework.
Even includes an appendix primer on Groovy (the language underlying the framework) so you might actually want to read that first.
Once you're done with this book you can move onto Programming Grails by Burt Beckwith to get into the deep innards of Grails if you want more. Also, maybe a Groovy book to get the language in some more detail. Programming Grails
Finally, a bit of context. Grails is very much the Java analog to Ruby on Rails. You'll find much of the features of Rails for a Java JVM environment, with complete interoperability with existing Java classes and toolset. So if you're a Java/Spring shop and thinking about getting the goodness of a framework like Rails but without completely leaving what you know, try Grails.
Having little programming knowledge myself, I had trouble understanding some of the code snippets provided in the book. If you're in a similar situation as myself, I recommend getting to know the basic java syntax, since this is what Grails is based upon, but in depth-knowledge is not required. Reading snippets like "album=Album" over and over again tends to make an uneducated head spin quite a lot, which is why I wish the authors would have chosen different names for the variables to make the distinction clearer. In addition, I think the book could've used a CD or an online source, so you can copy and paste the (at times rather long) snippets directly.
Overall though, this is complaining on a very high level. Given enough patience, even an uneducated reader will be able to use Grails after reading this book.
I like that it covers certain topics well. Such as how Config.groovy works and how to use it to configure services. I still refer to the book for this info. And I like the coverage of Gorm.
But then the frustrations being. First, I was using Grails 2.4.4, which has enough differences to make some of the code in the book not work, such as the unit tests. I got through this with little difficulty because I was already familiar with the Grails 2.4.4 documentation. So far, a minor inconvenience. Then came the incorrect references to illustrations/code, the gTunes "tutorial" doesn't distinguish between the code you should write and the code you just need to observe, and the unmet claims: Wicket (whatever that is) and security (not covered at all).
In the end, I'm barely satisfied. Useful, but didn't quite meet my expectations.
Some positive points,
I like that it is only 350 pages which means it is readable (compared to 650 page software books)
The structure of the book is very good, enabling you to learn in bite sized chunks
The reader is using Groovy without being aware of it is a new language, it feels easy! (I did buy separate Groovy book)
The gtunes examples are presented in snippets allowing the reader to focus on the key learning point instead of pages of code.
I looked at ruby on rails but was not comfortable with the ruby language. I had some Java, now I have the Grails framework, Groovy and I can fall-back on Java in emergencies - a great combination.
Most Recent Customer Reviews
Excellent mid-level coverage of the Grails web application framework. The only shortcoming was it has only a single chapter dedicated to plug-in extensibilityPublished 4 months ago by Christopher Johannsen
I have been developing a complex web application in Grails for almost a year. This is the best reference I have found on Grails. Read morePublished 12 months ago by Ian K.
I bought this book to learn grails for a project at work, I learned a lot but I had to investigate all about the spock languaje for the testsPublished 20 months ago by Ana M. Franco C
I give this book 5 stars. It is well organised. The sample application is easy to follow. And it opens with the general introductions on different topics within the Trails... Read morePublished 21 months ago by Tim Leung
Excellent book!! As the title says, this is the definitive guide when you want to enter the world of Grails. Read morePublished on November 6, 2013 by Mathias Fonseca
This is a good book to get to know grails with the condition you worked with a similar framework. If you worked with ruby on rails, this book will provide you a smooth start to... Read morePublished on August 15, 2013 by Filip Radovcic
So i wanted to learn Grails and came across this book.
Since i have a background in spring mvc i was able to grasp the concepts pretty quickly reading this book. Read more