CODEWITHSUNDEEP
swiftcore-dataswift3
Fr0zt
Fr0zt

Reputation: 1255

Delete an NSManaged Object

I've been trying to delete an NSManagedObject. This is my code:

    let app = UIApplication.shared.delegate as! AppDelegate
    let context = app.persistentContainer.viewContext
    let request = NSFetchRequest<NSFetchRequestResult>(entityName: "MyEnt")
    request.predicate = NSPredicate(format: "SELF = %@", EnttoDelete.objectID)
    request.returnsObjectsAsFaults = false

    do {
        let results = try context.fetch(request)

        if results.count > 0 {

            for result in results as! [NSManagedObject] {
                print ("Ent found")                    
                context.delete(result)

                 do {
                 try context.save()
                 } catch {
                 print("failed to delete")
                 }

            }

        }


    } catch {

        print ("Error in do")
    }
}

Has you see I have de Entitie do be deleted (EnttoDelete) and therefor it's ID (EnttoDelete.objectID). Now I've researchedm even in stackoverflow and I think this should work. But it's not. How can I delete desired entitie?

Upvotes: 0

Views: 523

Answers (1)

Fr0zt
Fr0zt

Reputation: 1255

I think I sort this, doing a different thing:

    let app = UIApplication.shared.delegate as! AppDelegate
    let context = app.persistentContainer.viewContext
    var thisID: NSManagedObjectID = (thatLand?.objectID)!
    let object = context.object(with: thisID)
    context.delete(object)

    do {
        try context.save()
    } catch {
        print("failed to delete")
    }

I thinks it's the better solution. Not sure though!

Upvotes: 4

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