How can I use Core Data with Swift 6?

To use Core Data with Swift 6, you can leverage the new Swift Data framework introduced in iOS 17. Swift Data simplifies building your app's model layer and persisting it across launches. Here are some key points and sessions that can help you get started:

1. Introduction to Swift Data:

   • Swift Data is a framework that allows you to model and persist your app's data in Swift across all of Apple's platforms. It provides persistence, modeling, migration, graph management, synchronization with CloudKit, and more.
   • What’s new in SwiftData

2. Adopting Swift Data:

   • To use Swift Data with your models, import the framework and decorate each model with the @Model macro. This macro is the powerhouse of Swift Data.
   • Example: In the "Trips" app, the model container modifier on the Window group tells the entire view hierarchy about the model trip.
   • What’s new in SwiftData

3. Custom Data Stores:

   • Swift Data allows you to create custom data stores using the new Datastore protocol. This enables support for any persistence backend, such as SQLite, a remote web service, or JSON files.
   • Create a custom data store with SwiftData

4. Schema Customization:

   • You can define your schema with just a few additions to a normal Swift class, starting with applying the @Model macro. You can further refine it using attributes to specify behaviors on properties and relationships to describe how models relate to one another.
   • Platforms State of the Union

5. Index and Unique Constraints:

   • Swift Data introduces the @Index and @Unique macros to make your queries more efficient and to avoid duplicate models.
   • What’s new in SwiftData

6. History API:

   • Swift Data provides a history API to track changes to your app's models, which is useful for tracking local changes that need to be synced to a remote web service.
   • Track model changes with SwiftData history

Relevant Sessions:

1. What’s new in SwiftData
2. Create a custom data store with SwiftData
3. Platforms State of the Union
4. Track model changes with SwiftData history

These sessions provide a comprehensive overview of how to use Swift Data, including adopting it in your app, customizing your data store, and optimizing your queries.