November 2016
Beginner to intermediate
298 pages
6h 10m
English
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Modifying data
Unlike views, regular data records don't have an XML arch structure and can't be extended using XPath expressions. But they can still be modified replacing the values in their fields.
The <record id="x" model="y"> data loading elements actually perform an insert or update operation on the model y: if model x does not exist, it is created; otherwise, it is updated/written over.
Since records in other modules can be accessed using a <model>.<identifier> global identifier, it's possible for our module to overwrite something that was written before by another module.
Note
Note that since the dot is reserved to separate the module name from the object identifier, it can't be used in identifier names. Instead, use the underscore option.
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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.