function saveNewProductSpec($id)
{
$product = new product($id);
$productGenSpec = new productgenspec($this->input->post('newProductSpecId'));
$ps = new productspec();
$ps->where('productgenspec_id', $productGenSpec->id);
$ps->where('product_id', $id);
$ps->get();
if ($ps->result_count() == 0) {
$productSpec = new productspec();
$productSpec->product_id = $id;
$productSpec->save(array('productgenspec' => $productGenSpec));
}
}
