How do you update a CoreData entry that has already been saved in Swift?

Question

I\'m not sure what I\'m doing wrong here, but when I save the first time into coredata, it works just fine. When I try to overwrite that, it doesn\'t.

func t         


        

Answer 1

//For Swift UI inside the view outside the body :)
@Environment(.managedObjectContext) var managedObjectContext

var isNewRecord = false
    let aNewContact: Contact!
      
    let fetchConcact: NSFetchRequest = Contact.fetchRequest() as! NSFetchRequest
    
    fetchConcact.predicate = NSPredicate(format: "record_id == %@", contactRemoteModel.contacts[i].record_id as CVarArg)
         
    let results = try? managedObjectContext.fetch(fetchConcact)
    
      if results?.count == 0 {
      // here you are inserting
      aNewContact = Contact(context: managedObjectContext)
      aNewContact.id = UUID()
      isNewRecord = true
             print("Insert")
      } else {
         // here you are updating
          aNewContact = results?.first
          print("UpDate")
      }