public function update()
{
if ($this->viewAccess() && JeproshopTools::checkProductToken()) {
$app = JFactory::getApplication();
$product_id = $app->input->get('product_id');
if (isset($product_id) && $product_id > 0) {
$productModel = new JeproshopProductModelProduct($product_id);
$productModel->updateProduct();
}
}
}