September 2018
Beginner to intermediate
218 pages
4h 27m
English
Content preview from Magento 2 Development Quick Start Guide
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Creating extension attributes
Creating a new extension attribute for an existing entity is usually a case of doing the following:
- Using setup scripts to set the attribute, column, or table for persistence
- Defining the extension attribute via <VendorName>/<ModuleName>/etc/extension_attributes.xml
- Adding an after and/or before plugin to the save, get, and getList methods of an entity repository
Moving forward, we are going to create extension attributes for the order entity, that is, customer_note and merchant_note.
We can imagine customer_note as an attribute that does not persist its value(s) in the sales_order table as order entity does, whereas merchant_note attribute does. This is why we created the sales_order.merchant_note column earlier ...
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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.