i crated a coredate in my project (Swiftui) i change the Attributes typa and now it make to me error when i save the data. it save the data but i cannot deleted..
From Debager:
2022-11-16 19:25:28.582162+0200 TorLight[14396:306398] [error] warning: Multiple NSEntityDescriptions claim the NSManagedObject subclass 'HistoryList' so +entity is unable to disambiguate.
CoreData: warning: Multiple NSEntityDescriptions claim the NSManagedObject subclass 'HistoryList' so +entity is unable to disambiguate.
2022-11-16 19:25:28.582325+0200 TorLight[14396:306398] [error] warning: 'HistoryList' (0x600001d54fd0) from NSManagedObjectModel (0x600000974500) claims 'HistoryList'.
CoreData: warning: 'HistoryList' (0x600001d54fd0) from NSManagedObjectModel (0x600000974500) claims 'HistoryList'.
2022-11-16 19:25:28.582409+0200 TorLight[14396:306398] [error] warning: 'HistoryList' (0x600001d5c580) from NSManagedObjectModel (0x6000009619f0) claims 'HistoryList'.
CoreData: warning: 'HistoryList' (0x600001d5c580) from NSManagedObjectModel (0x6000009619f0) claims 'HistoryList'.
2022-11-16 19:25:28.582484+0200 TorLight[14396:306398] [error] error: +[HistoryList entity] Failed to find a unique match for an NSEntityDescription to a managed object subclass
CoreData: error: +[HistoryList entity] Failed to find a unique match for an NSEntityDescription to a managed object subclass
Codegen in HistoryModel is Manual:
extension HistoryList {
@nonobjc public class func fetchRequest() -> NSFetchRequest<HistoryList> {
return NSFetchRequest<HistoryList>(entityName: "HistoryList")
}
@NSManaged public var date: Date?
@NSManaged public var time: Int16
}
extension HistoryList : Identifiable {
}
@objc(HistoryList)
public class HistoryList: NSManagedObject {
}
CoreData Manager:
class CoreDataManager {
let persistentContainer: NSPersistentContainer
init(){
persistentContainer = NSPersistentContainer(name: "HistoryModel")
persistentContainer.loadPersistentStores { (description , error) in
if let error = error {
fatalError("Core Data Store faild \(error.localizedDescription)")
}
}
}
func saveHistory(time: Int16, date: Date) {
let history = HistoryList(context: persistentContainer.viewContext)
history.time = time
history.date = date
do {
try persistentContainer.viewContext.save()
} catch {
print("failed to save \(error)")
}
}
func getAllHistory() -> [HistoryList] {
let fetchRequest: NSFetchRequest<HistoryList> = HistoryList.fetchRequest()
do {
return try persistentContainer.viewContext.fetch(fetchRequest)
} catch {
return []
}
}
func deleteHistory(history: HistoryList) {
persistentContainer.viewContext.delete(history)
do {
try persistentContainer.viewContext.save()
} catch {
persistentContainer.viewContext.rollback()
print("Failed to save context \(error)")
}
}
}
i cannot find the problem
make coredata and i get error, I went through all the messages here and I tried everything and it doesn't work!
