swiftdata-inheritance

To implement SwiftData inheritance, you define a base model class with shared properties and annotate subclasses to extend it with type-specific attributes. This approach structures hierarchical data while maintaining a unified schema for querying across the entire type hierarchy.

Yes, you can query across specific subclasses in a SwiftData model hierarchy. The framework allows you to fetch all entities inheriting from a base class or filter your queries to return only instances of a specific subclass based on your data requirements.

Modeling polymorphic relationships in SwiftData involves linking to a shared base class rather than individual subclasses. This allows a single relationship property to reference different subclass types dynamically, simplifying your schema design.

SwiftData supports shared base properties with type-specific extensions by allowing you to store common attributes in a parent class and unique attributes in subclasses. This ensures data consistency while enabling specialized behaviors for different model types.

Best practices for SwiftData schema migration with inherited models involve carefully managing changes to shared base properties and subclass annotations. You must ensure schema compatibility during version transitions to prevent data loss when updating hierarchical structures.