April 2019
Beginner to intermediate
244 pages
6h 34m
English
Content preview from Programming EctoBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Wrapping Up
Ecto has excellent support for database transactions via the Repo.transaction function. The last section covered some of the ways that using Ecto.Multi is preferable to using functions, but cases definitely exist where calling transaction with a function works well.
If you’re only running a small number of operations and you don’t need to take different action depending on which operation succeeds or fails, using a function is a good option. For all other cases, you should consider Ecto.Multi. It has a lot more flexibility, and the code needed to respond to different types of errors will be much cleaner and easier to follow.
We’ve almost completed our tour of Ecto. We’ve looked at how to run queries, make changes, map records to structs, ...
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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.