NSDictionary and Core Data

Inserting NSDictionary into core data

  //dataForDB is a NSDictionary

NSData *data = [NSKeyedArchiver archivedDataWithRootObject:dataForDB];

Record * newEntry = [NSEntityDescription insertNewObjectForEntityForName:@"Record" inManagedObjectContext:appD.managedObjectContext];

newEntry.address=data;

NSError *error;

if (![self.managedObjectContext save:&error]) {

        NSLog(@"Whoops, couldn't save: %@", [error localizedDescription]);

    }

    

Fetching from core data

  NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];

    //Setting Entity to be Queried

    NSEntityDescription *entity = [NSEntityDescription entityForName:@"Record"

                                              inManagedObjectContext:appD.managedObjectContext];

    [fetchRequest setEntity:entity];

    NSError* error;

    // Query on managedObjectContext With Generated fetchRequest

    NSArray *fetchedRecords = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error];

    for (Record *info in fetchedRecords) {

        NSMutableDictionary *notes = [NSKeyedUnarchiver unarchiveObjectWithData:info.address];

}