[Auto increment in Core Data] How to implement auto-increment in core data while saving it #coredata

MyCoredataObject+CoreDataProperties.swift

import Foundation
import CoreData

extension MyCoredataObject {

    @nonobjc public class func createFetchRequest() -> NSFetchRequest<MyCoredataObject> {
        return NSFetchRequest<MyCoredataObject>(entityName: "MyCoredataObject")
    }

	@NSManaged public var sortId: Int64
	
	public override func willSave() {
		super.willSave()
		
		if self.sortId == 0 {
			setPrimitiveValue(getAutoIncremenet(), forKey: "sortId")
		}
	}
	
	func getAutoIncremenet() -> Int64   {
		let url = self.objectID.uriRepresentation()
		let urlString = url.absoluteString
		if let pN = urlString.components(separatedBy: "/").last {
			let numberPart = pN.replacingOccurrences(of: "p", with: "")
			if let number = Int64(numberPart) {
				return number
			}
		}
		return 0
	}

}