Dr. Tran's Hickory Chicken Sortables

gistfile1.m

NSSortDescriptor *groupSortDescriptor = [[[NSSortDescriptor alloc] initWithKey:@"group" ascending:YES selector:@selector(groupCompare:)] autorelease];
NSSortDescriptor *orderSortDescriptor = [[[NSSortDescriptor alloc] initWithKey:@"order" ascending:YES] autorelease];
NSArray          *descriptors         = [NSArray arrayWithObjects:groupSortDescriptor, orderSortDescriptor, nil];
NSArray          *sortedShortcuts     = [allShortcuts sortedArrayUsingDescriptors:descriptors];

// Re-sort the group name string objects (they've just been jumbled on Leopard - YAY!)
NSSortDescriptor *groupObjectSortDescriptor = [[[NSSortDescriptor alloc] initWithKey:@"self" ascending:YES selector:@selector(groupCompare:)] autorelease];
NSMutableArray   *distinctGroupNames        = [sortedShortcuts valueForKeyPath:@"@distinctUnionOfObjects.group"];
NSArray          *sortedDistinctGroupNames  = [distinctGroupNames sortedArrayUsingDescriptors:[NSArray arrayWithObject:groupObjectSortDescriptor]];

for (NSString *groupName in sortedDistinctGroupNames) {
    …
}