June 2014
Intermediate to advanced
576 pages
19h 26m
English
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Chapter 3. Modeling the domain
This chapter covers
- What GORM is and how it works
- How domain classes are saved and updated
- Techniques for validating and constraining fields
- Domain class relationships (1:1, 1:m, m:n)
In this chapter, we explore Grails’s support for the data model portion of your applications (getting stuff into the database and querying to get it back), and if you’re worried we’ll dig deep into complex outer joins, you’ll be pleasantly surprised how straightforward Grails makes data access. We won’t write a line of SQL, and you won’t find any Hibernate XML mappings here either. We’ll take full advantage of the convention over configuration paradigm we introduced in chapter 1, which means less time configuring and more time ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.