Function filtering DB doesn't work!

import wixData from ‘wix-data’;

let imgfilter = wixData.filter();

export function PdButton_click(event) {
console.log(“Test”) //ADD THIS LINE TO TEST WHETHER THIS FUNCTION IS RUN-ED!
let $item = $w.at(event.context);
let PdNumber = $item(‘#List’).getCurrentItem().partNum

imgfilter = imgfilter.hasSome(‘PdNum’, PdNumber);
$w(‘#imgtest’).setFilter(imgfilter);

}