Protocols in Swift With Core Data | Cocoa Is My Girlfriend
Sometimes you have a set of objects you want to display in the same form–say, for example, in a table view controller. What if those objects have, by design, nothing in common and nothing to do with each other? This is a case where you can create and conform to a protocol–known in some languages as an interface–to provide a simple way to have each class type provide a display name that can be disp
Multiple Managed Object Contexts with Core Data Tutorial
This is an abridged from our book Core Data by Tutorials, which has been completely updated for Swift 4 and iOS 11. This tutorial is presented as part of our iOS 11 Launch Party — enjoy! A managed object context is an in-memory scratchpad for working with your managed objects. Most apps need just a single managed object context. The default configuration in most Core Data apps is a single managed
Lightweight Migrations in Core Data Tutorial
This is an abridged from our book Core Data by Tutorials, which has been completely updated for Swift 4 and iOS 11. This tutorial is presented as part of our iOS 11 Launch Party — enjoy! When you create a Core Data app, you design an initial data model for your app. However, after you ship your app inevitably you’ll want to make changes to your data model. What do you do then? You don’t want to br
Core Data in Swift Tutorial (Part 1) - Jameson Quave
Jameson Quave Using computer technology to educate, and improve lives. This post compatible with Xcode 6.3 Beta, Updated on February 16, 2015 Don’t have 6.3 yet? Make sure to download it here using your iOS Developer account. Core Data is the de facto standard way to persist and manage data in both iPhone and Mac applications, and with Swift it’s a bit easier. So it’s only natural that we should t
Core Data from Scratch: Data Model | Envato Tuts+
Introduction In the first article of this series, we learned about the Core Data stack, the heart of a Core Data application. We explored the managed object context, the persistent store coordinator, and the managed object model. This article focuses on the data model of a Core Data application. We zoom in on Xcode's data model editor and we take a look at entities, attributes, and relationships.
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