How to organize sorting in pdoPage?

Question

MODX

Last year I already solved this problem now I can’t remember what I did at all.
The essence of the problem:
it sorts the
subcategory
100 rubles.
102 rub.
103 rub.
subcategory
99 rub.
100 rub.
subcategory
88 rub.
100 rub.
How to make subcategories not affect sorting?
those. so
88 rubles.
99 rub.
100 rub.
102 rub.
103 rub.
I bring it out like this

Spippet of sorter

$sort = $_GET['sort'];
if($sort == '') {
    $output='&sortby=`{"editedon":"DESC"}`';
} else {
    $output = '&sortby=`{"'.$sort.'":"'.$_GET['dir'].'"}`';
}
return $output;

Answer 1

Figured out the answer, found it in old questions, I was stupid, the price should have had a price type and not a text