protected function addProduct($name, $description, $color = null, $size = null, $altKey = null, $seller = null, $parent = null)
{
if (($product = $this->isProductExist($name)) === false) {
$product = new Entity\Product();
}
$product->setName($name);
$product->setDescription($description);
$product->setCustomer($this->_customer);
$product->setCustomText1($color);
$product->setCustomText2($size);
$product->setCustomText3($altKey);
$product->setCustomText4($seller);
$product->setParent($parent);
$this->_em->persist($product);
return $product;
}