Add form caching issue

Grocery CRUD Enterprise
23

This is my function, and it pulls the value in but only the once, it’s very strange. Is there some caching going on somewhere?

    // New ID Function

    public function newid()
        {
            // 
            $db      = \Config\Database::connect();

            $builder = $db->table('radios');
            $query = $builder->get();
            if($builder->countAllResults() > 0){
                // Return latest ID
                $builder->selectMax('radioID');
                $builder->get();
                $row = $query->getRow();
                $topID = $row->radioID;
                //print_r($topID);
                $topID++;
                return $topID;
            }
        }
24

I’ve tried calling this function from within the callback function…
It still only shows the value that would have been in the database the first time the page loaded.

        $crud->callbackAddField('radioID', function() {
            return '<input class="form-control" name="radioID" type="text" value="' . $this->newid() . '" readonly>';
        });