CODEWITHSUNDEEP
iosxcodeuitableviewcore-datansmanagedobject
slozano95
slozano95

Reputation: 278

Update CoreData iOS

i want to know how can I update a coredata record that was selected from a tableView my code to save the coredata is:

- (IBAction)juardar:(id)sender {

NSUserDefaults *defs=[NSUserDefaults standardUserDefaults];

NSString *sedef_mat=[NSString stringWithFormat:@"%@",[defs objectForKey:@"Materia"]];
//NSLog(@"%@",sedef_mat);

NSManagedObjectContext *context = [self managedObjectContext];

// Create a new managed object
NSManagedObject *newtarea = [NSEntityDescription insertNewObjectForEntityForName:@"Tareas" inManagedObjectContext:context];
[newtarea setValue:self.Nombre.text forKey:@"nombre"];
[newtarea setValue:self.Descripcion.text forKey:@"descripcion"];
[newtarea setValue:sedef_mat forKey:@"materia"];

NSError *error = nil;
// Save the object to persistent store
if (![context save:&error]) {
    //NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
}

}

Thanks

Upvotes: 0

Views: 1252

Answers (1)

RegularExpression
RegularExpression

Reputation: 3541

Just set the new values then save the context just as you did above. But you'll be working with the fetched results:

for (Tareas *object in fetchedResultsController.fetchedObjects)
{
    Tareas *t = (Tareas *)object;
    if ([t.nombre isEqualToString:@"NewValue1"])
    {
        Tareas.nombre = @"NewValue1";
        Tareas.description = @"NewValue2";
        Tareas.materia = @"NewValue3";
    }
}

then save context like you did above:

if (![context save:&error])
    etc.

Upvotes: 1

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