NSFetchedResultsController - sort as a number but string field

Question

I am returning some data from a fetch request, the field is stored as a String. What I want to do is sort the results so that the numbers are in order

let sortDescriptor = NSSortDescriptor(key: "number", ascending: true)
fetchRequest.sortDescriptors = [sortDescriptor]

The order I'm wanting is 1,2,3,100, 200, 1544, White The ones which are actual strings doesn't matter if its at the start or end ( End is preferred but not needed)

1, 100, 1544, 2, 3, White

Rahul Dasgupta · Accepted Answer · 2017-12-12T18:41:50.103

2

var sortDescriptor = NSSortDescriptor(key: "title", ascending: true,
            selector: #selector(NSString.localizedStandardCompare))
fetchRequest.sortDescriptors = [sortDescriptor]

edited Dec 12 '17 at 18:41

answered Dec 12 '17 at 18:36

Rahul Dasgupta

894
6
18

`localizedStandardCompare` yes it did the trick to sort numbered strings +1 – M Zubair Shamshad Aug 27 '18 at 07:56

NSFetchedResultsController - sort as a number but string field

1 Answers1