تخزين Swift Struct في Core Data

To store a Swift Struct in Core Data on iOS, you need to convert the struct to a class that can be represented in Objective-C. One way to do this is to create a separate class for your Stop struct and use it in your Favourite class. Here’s how you can do it:

First, create a class for your Stop struct:

swift
import Foundation
import CoreData

@objc(StopEntity)
class StopEntity: NSManagedObject {
    @NSManaged var name: String
    @NSManaged var id: String
}

Make sure to replace StopEntity with the actual name you want to use for your Core Data entity representing the Stop struct.

Then, update your Favourite class to use StopEntity:

swift
import Foundation
import CoreData

class Favourite: NSManagedObject {
    @NSManaged var origin: StopEntity
    
    struct Stop {
        var name: String
        var id: String
        
        init(name: String, id: String) {
            self.name = name
            self.id = id
        }
    }
    
    func getStop() -> Stop {
        return Stop(name: origin.name, id: origin.id)
    }
    
    func setStop(stop: Stop) {
        origin.name = stop.name
        origin.id = stop.id
    }
}

In your Core Data model file (xcdatamodeld), you can set up Favourite to have a one-to-one relationship with StopEntity.

When you need to access the Stop struct from Favourite, you can use the getStop() and setStop(stop:) methods to convert between Stop and StopEntity.

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