function updatePosition()
{
$positionList = $this->input->post('positionList');
$idList = $this->input->post('idList');
$productCat = new productCat();
for ($i = 0; $i < count($idList); $i++) {
$productCat->where("id", $idList[$i]);
$productCat->get();
$productCat->position = $positionList[$i];
$productCat->save();
$productCat->clear();
}
redirect("admin/productcats/listAll/" . $this->input->post('parentId'));
}
