October 2008
Intermediate to advanced
352 pages
10h 30m
English
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Exercises
Write unit tests for the
orer_payment_xorconstraint. Ensure that the data layer prohibits any order with zero or multiple payments but accepts orders with a single payment.Following the example laid out in this chapter, extend the MTI plugin with a
has_manyMTI association method.What other methods are needed to create a complete MTI plugin? How would you implement them?
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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.