Using an array of NSNumbers to sort paired arrays

[Ty Sayman]

Hi Folks,

I'm having a problem using the
sortArrayUsingSelector:withPairedMutableArrays function to sort
numbers.

After a bit of digging and lots of NSlog-ing I think that the compare:
is being done on the string value and not arithmatically. In other
words, 24 < 9 in the comparison because the first digit, 2, is less
than 9.

Is this correct?
If not, then I'm really confused. If it is, then how do you go about
sorting with an array of numbers, NSNumber(s) to get the desired
result?

Here is some of the code....not sure if it will help.

@interface OurGifts : SQLitePersistentObject {

NSNumber *displayPosition;

....and lots of other stuff

@implementation OurGifts

DECLARE_PROPERTIES(
DECLARE_PROPERTY(@"displayPosition", @"@\"NSNumber\""),

....and lots of other stuff....then...

- (void)setUpDisplayList{

NSArray *theProps = [NSArray arrayWithObjects:@"displayPosition" ,
@"giftName", nil];
NSArray *myArray = [OurGifts pairedArraysForProperties:theProps ];

NSMutableArray *ourPks = [myArray objectAtIndex:0];
NSMutableArray *ourDisplayOrder = [myArray objectAtIndex:1];

[ourDisplayOrder sortArrayUsingSelector:@selector(compare: options: )
withPairedMutableArrays:ourPks, nil];

self.displayList = ourPks;
}

At this point, displayList should be in the order of displayPosition,
but it isn't.
Should there be other function called instead of compare: ??

Thanks for your help.

On another note: THANK YOU to everyone who is contributing to SQLPO.

Ty