CODEWITHSUNDEEP
objective-cios
artyom
artyom

Reputation: 58

Which type I should use to save many objects with same key? (iOS)

Which type I should use to save many objects with same key?

I should post data to server where one of parameter is suggestedTo and it contains userId. This parameters should be more then one. So I'm confused which data type I should use to save them. For example array or dictionary should looks like

{
  @"suggestedTo" = 111,
  @"suggestedTo" = 222,
  @"suggestedTo" = 333,
  etc.
}

Upvotes: 0

Views: 505

Answers (2)

Rob Napier
Rob Napier

Reputation: 299355

This is typically handled with a dictionary of sets (or arrays if the data is ordered). So in this case, you'd have something like:

NSSet *suggestedTo = [NSSet setWithObjects:[NSNumber numberWithInt:111],
                                           [NSNumber numberWithInt:222],
                                           [NSNumber numberWithInt:333], nil];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:suggestedTo,
                                                                @"suggestedTo", nil];

Upvotes: 3

Paul.s
Paul.s

Reputation: 38728

You could use a dictionary of arrays

NSArray      *suggestedTos = [[NSArray alloc] initWithObjects:
                               [NSNumber numberWithInt:111],
                               [NSNumber numberWithInt:222],
                               [NSNumber numberWithInt:333], nil];

NSDictionary *myDictionary = [[NSDictionary alloc] initWithObjectsAndKeys:
                               suggestedTos, @"suggestedTo", nil];

Upvotes: 2

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