CODEWITHSUNDEEP
iosxcodeswiftcore-data
EvGeniy Ilyin
EvGeniy Ilyin

Reputation: 1919

CoreData: Error - entity is not key value coding-compliant ID

i have core data error, when i try save relation between Group <<->> Contact

i fetch one Contact from coredata by hashUser, and one Group by uid and try adding relation to-many with func

// extension CXDMContact
func addGroup(value: CXDMGroup) {
    let items = self.mutableSetValueForKey("groups");
    items.addObject(value)
}

when i try save it, i get exeption

CoreData: error: Serious application error.  Exception was caught during Core Data change processing.  This is usually a bug within an observer of NSManagedObjectContextObjectsDidChangeNotification.  [<CXDMGroup 0x7fb7924aa770> valueForUndefinedKey:]: the entity Group is not key value coding-compliant for the key "id". with userInfo {
    NSTargetObjectUserInfoKey = "<CXDMGroup: 0x7fb7924aa770> (entity: Group; id: 0xd0000000000c0000 <x-coredata://E66299CB-12A5-4152-8B49-8E9B3B68762F/Group/p3> ; data: {\n    contacts =     (\n        \"0xd000000000040002 <x-coredata://E66299CB-12A5-4152-8B49-8E9B3B68762F/Contact/p1>\"\n    );\n    uid = 5;\n})";
    NSUnknownUserInfoKey = id;
}

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<CXDMGroup 0x7fb7924aa770> valueForUndefinedKey:]: the entity Group is not key value coding-compliant for the key "id".'

but i not have any ID field, and if i look in managedObjectContext in the moment - i see

(lldb) po managedObjectContext.updatedObjects
▿ 2 elements
  - [0] : <CXDMContact: 0x7fb7927f5270> (entity: Contact; id: 0xd000000000040002 <x-coredata://E66299CB-12A5-4152-8B49-8E9B3B68762F/Contact/p1> ; data: {
    chatStatus = nil;
    companyId = nil;
    companyName = OWN;
    companySubscription = nil;
    connectedLoads = nil;
    countryCode2 = nil;
    departmentName = nil;
    email = nil;
    firstname = Ownname;
    groups =     (
        "0xd0000000000c0000 <x-coredata://E66299CB-12A5-4152-8B49-8E9B3B68762F/Group/p3>"
    );
    jobTitle = nil;
    lastname = Lastname;
    messages = "<relationship fault: 0x7fb7924a25b0 'messages'>";
    phone1 = nil;
    phone2 = nil;
    serialNumber = nil;
    status = Offline;
    timeZoneName = nil;
    userHash = 1002;
})
  - [1] : <CXDMGroup: 0x7fb7924aa770> (entity: Group; id: 0xd0000000000c0000 <x-coredata://E66299CB-12A5-4152-8B49-8E9B3B68762F/Group/p3> ; data: {
    contacts =     (
        "0xd000000000040002 <x-coredata://E66299CB-12A5-4152-8B49-8E9B3B68762F/Contact/p1>"
    );
    uid = 5;
})

(lldb) po managedObjectContext.insertedObjects
0 elements

(lldb) po managedObjectContext.deletedObjects
0 elements

i don't understand where does key "id"? please help

Upvotes: 4

Views: 3149

Answers (2)

Mundi
Mundi

Reputation: 80265

Look for an occurrence of trying to set or get id instead of uid somewhere in your controller.

Upvotes: 1

Marcus S. Zarra
Marcus S. Zarra

Reputation: 46718

This issue, as the error hints at, has to do with something observing the save of the context. If you are using a NSFetchedResultsController or something else that monitors that event it is there that you have the issue. Perhaps a typo somewhere in a UITableViewCell?

Upvotes: 5

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