May 2019
Intermediate to advanced
546 pages
12h 41m
English
Content preview from Salesforce Platform Developer I Certification Guide
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Server-side controller
Before we enrich the component with the code of the search movies functionality, we need to define some server-side actions. Due to several limits in regards to making callouts from the JavaScript in Lightning components, Salesforce recommends that we perform the callouts on an external system in an Apex class and call this class and method from a JavaScript controller/helper.
We wrote our search callout in Chapter 5, Apex - Beyond The Basics, and we want to reuse this logic. (We don't want to rewrite the same logic for the Lightning component.) We will call this function in a new Apex controller, which can be called by the Lightning Component framework. But why another controller?
The Lightning Component framework ...
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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.