/**
* @param int $product_id
* @param int $sku_id
* @return bool
*/
public function deleteFromStocks($product_id, $sku_id)
{
$product_stocks_model = new shopProductStocksModel();
return $product_stocks_model->deleteByField(array('product_id' => $product_id, 'sku_id' => $sku_id));
}
