How the new relationships in SwiftData work?

Question

Created Aug ’23

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There is a new Relationship macro in Xcode Beta 6. The macro includes two new arguments: minimumModelCount and maximumModelCount. I wonder if anyone knows what these values are for and if there is another change under the hood.

Relationship(
    _ options: PropertyOptions...,
    deleteRule: Schema.Relationship.DeleteRule = .nullify,
    minimumModelCount: Int? = 0,
    maximumModelCount: Int? = 0,
    originalName: String? = nil,
    inverse: AnyKeyPath? = nil,
    hashModifier: String? = nil
)

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Answer 1

VSilverstein OP

Jan ’24

I know it's a long time since you asked the question, but Paul Hudson gives a great example on how the "new" Relationship macro.

Top 3 searchresults should lead you to a great article if you search: "dog6 swiftdata".

Domain is HackingWithSwift if this is allowed to write.

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