Using existing CoreData objects with convenience initializers #438

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opened 2025-12-29 15:31:56 +01:00 by adam · 1 comment

adam commented 2025-12-29 15:31:56 +01:00

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Originally created by @bertayyonel95 on GitHub (Nov 4, 2024).

In the app that I'm working on I have been previously using CoreData, and now I am migrating all my CoreData logic to CoreStore. I have some convenience initializers for my CoreData objects as such;

convenience init(fromJson json: JSON) {
        self.init()
        self.addData(fromJson: json)
    }

I was wondering if it is possible to use these initializers with create(_ into) ? Since creating the object with those initializers and then using fetchExisting on the transaction doesn't seem to work.

Originally created by @bertayyonel95 on GitHub (Nov 4, 2024). In the app that I'm working on I have been previously using CoreData, and now I am migrating all my CoreData logic to CoreStore. I have some convenience initializers for my CoreData objects as such; ```swift convenience init(fromJson json: JSON) { self.init() self.addData(fromJson: json) } ``` I was wondering if it is possible to use these initializers with create(_ into) ? Since creating the object with those initializers and then using fetchExisting on the transaction doesn't seem to work.

adam commented 2025-12-29 15:31:57 +01:00

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@JohnEstropia commented on GitHub (Nov 8, 2024):

Unlike Core Data, CoreStore doesn't allow orphaned objects that do not belong to any store. Instead I would suggest to use the Importing API using ImportableObject or ImportableUniqueObject protocols and use the transaction.import***(...) methods instead.

@JohnEstropia commented on GitHub (Nov 8, 2024): Unlike Core Data, CoreStore doesn't allow orphaned objects that do not belong to any store. Instead I would suggest to use the [Importing API](https://github.com/JohnEstropia/CoreStore?tab=readme-ov-file#importing-data) using `ImportableObject` or `ImportableUniqueObject` protocols and use the `transaction.import***(...)` methods instead.

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Reference: starred/CoreStore#438