Core Data: Beyond the Basics

Jul 26 2022 Swift 5.5, iOS 15, Xcode 13.3.1

Part 1: Fetching & Displaying Launches

11. Transient Properties

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Previous episode: 10. Challenge - Displaying Tags Next episode: 12. Conclusion

This video was last updated on Jul 26 2022

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Good job on those challenges! You’ve implemented quite a few challenging features so let’s end this part of the course on an easier note. There’s one little thing I’d like to add to the app, and that is to display how many RocketLaunches are associated with each tag.

@objc var launchCount: Int {}
willAccessValue(forKey: "launches")
let count = launches.count
didAccessValue(forKey: "launches")
return count
Text("\(tag.title) (\(tag.launchCount))")