New in SwiftData
Asked on 09/06/2024
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New in SwiftData
SwiftData has introduced several new features and improvements, as highlighted in the WWDC 2024 sessions:
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Schema Macro: A new schema macro helps avoid duplicate models, making it easier to manage your app's data models.
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Model Containers: There are new ways to set up and configure model containers, allowing for more customization, including the ability to tailor the URL of the data on disk.
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Index and Unique Macros: The index macro improves query performance by optimizing how data is stored and retrieved. The unique macro ensures that a set of properties has no duplicate entries, which helps in maintaining data integrity.
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Custom Data Stores: SwiftData now supports custom data stores, allowing developers to use alternative backends like SQLite or a collection of JSON files. This flexibility enables the use of SwiftData's API with various storage solutions.
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History API: The new history API allows tracking changes to your app's models, which is useful for syncing with servers or responding to changes from app extensions.
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Expression Macro: This macro is designed to optimize queries with complex filters, enhancing performance.
For more detailed information, you can refer to the session What’s new in SwiftData (00:00:07).
Relevant Sessions
- What’s new in SwiftData
- Create a custom data store with SwiftData
- Track model changes with SwiftData history
These sessions provide a comprehensive overview of the new features and capabilities introduced in SwiftData.
Track model changes with SwiftData history
Reveal the history of your model’s changes with SwiftData! Use the history API to understand when data store changes occurred, and learn how to use this information to build features like remote server sync and out-of-process change handing in your app. We’ll also cover how you can build support for the history API into a custom data store.
What’s new in SwiftData
SwiftData makes it easy to add persistence to your app with its expressive, declarative API. Learn about refinements to SwiftData, including compound uniqueness constraints, faster queries with #Index, queries in Xcode previews, and rich predicate expressions. Join us to explore how you can use all of these features to express richer models and improve performance in your app. To discover how to build a custom data store or use the history API in SwiftData, watch “Create a custom data store with SwiftData” and “Track model changes with SwiftData history”.
Create a custom data store with SwiftData
Combine the power of SwiftData’s expressive, declarative modeling API with your own persistence backend. Learn how to build a custom data store and explore how to progressively add persistence features in your app. To get the most out of this session, watch “Meet SwiftData” and “Model your schema with SwiftData” from WWDC23.