webman-buildadmin-mall/app/admin/library/crud/stubs/mixins/model/getters/stringToArray.stub

    public function get{%field%}Attr($value): array
    {
        if ($value === '' || $value === null) return [];
        if (!is_array($value)) {
            return explode(',', $value);
        }
        return $value;
    }