Uncaught exception on importing XML product list to Prestashop 1.5.6.0

[jitheshkt]

Hi I am just new and starting up. My requirement was to import XML product list to Prestashop as products. Thankfully there is already a sample documentation on the same provided in the documentation of prestashop. I just copy pasted and tried it out. Sadly it doesn't worked well. I will copy paste the code I tried below and the error message after that.

 

PHP File (located in the root directory of prestashop):

<?php

include(dirname(__FILE__).'/config/config.inc.php');
include(dirname(__FILE__).'/init.php');

$xml_string = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<Document>
<Products>
<Reference>1101TEST</Reference>
<Valid_internet_product>1</Valid_internet_product>
<Products_name>Test product</Products_name>
<Price>49.99</Price>
<Active_product>1</Active_product>
<SupplierNo>8</SupplierNo>
<Weight>5</Weight>
<Description>My long product description</Description>
<Short_Description>Product desc.</Short_Description>
<MinOrderQty>1</MinOrderQty>
<Categories>
<Category>
<CategoryID>3</CategoryID>
<CategoryName>Home\Prod</CategoryName>
<Active_category>1</Active_category>
<Changed>0</Changed>
</Category>
</Categories>
<Tax_Class_ID>1</Tax_Class_ID>
<Discount>
<Discount_percentage>percentage</Discount_percentage>
<discountprice_ex_vat>0</discountprice_ex_vat>
<Discountprice_include_vat>0</Discountprice_include_vat>
<Pct_ReductionPercent>0</Pct_ReductionPercent>
</Discount>
</Products>
</Document>
XML;

$xml = simplexml_load_string($xml_string);
foreach ($xml->Products as $product_xml)
{
if<?php

include(dirname(__FILE__).'/config/config.inc.php');
include(dirname(__FILE__).'/init.php');

$xml_string = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<Document>
<Products>
<Reference>1101TEST</Reference>
<Valid_internet_product>1</Valid_internet_product>
<Products_name>Test product</Products_name>
<Price>49.99</Price>
<Active_product>1</Active_product>
<SupplierNo>8</SupplierNo>
<Weight>5</Weight>
<Description>My long product description</Description>
<Short_Description>Product desc.</Short_Description>
<MinOrderQty>1</MinOrderQty>
<Categories>
<Category>
<CategoryID>3</CategoryID>
<CategoryName>Home\Prod</CategoryName>
<Active_category>1</Active_category>
<Changed>0</Changed>
</Category>
</Categories>
<Tax_Class_ID>1</Tax_Class_ID>
<Discount>
<Discount_percentage>percentage</Discount_percentage>
<discountprice_ex_vat>0</discountprice_ex_vat>
<Discountprice_include_vat>0</Discountprice_include_vat>
<Pct_ReductionPercent>0</Pct_ReductionPercent>
</Discount>
</Products>
</Document>
XML;

$xml = simplexml_load_string($xml_string);
foreach ($xml->Products as $product_xml)
{
if ($product_xml->Valid_internet_product == 1)
{
/* Update an existing product or Create a new one */
$id_product = (int)Db::getInstance()->getValue('SELECT id_product FROM '._DB_PREFIX_.'product WHERE reference = \''.pSQL($product_xml->Reference).'\'');
$product = $id_product ? new Product((int)$id_product, true) : new Product();
$product->reference = $product_xml->Reference;
$product->price = (float)$product_xml->Price;
$product->active = (int)$product_xml->Active_product;
$product->weight = (float)$product_xml->Weight;
$product->minimal_quantity = (int)$product_xml->MinOrderQty;
$product->id_category_default = 2;
$product->name[1] = utf8_encode($product_xml->Products_name);
$product->description[1] = utf8_encode($product_xml->Description);
$product->description_short[1] = utf8_encode($product_xml->Short_Description);
$product->link_rewrite[1] = Tools::link_rewrite($product_xml->Products_name);
if (!isset($product->date_add) || empty($product->date_add))
$product->date_add = date('Y-m-d H:i:s');
$product->date_upd = date('Y-m-d H:i:s');
$id_product ? $product->updateCategories(array(2)) : $product->addToCategories(array(2));
$product->save();

echo 'Product <b>'.$product->name[1].'</b> '.($id_product ? 'updated' : 'created').'<br />';
}
} ($product_xml->Valid_internet_product == 1)
{
/* Update an existing product or Create a new one */
$id_product = (int)Db::getInstance()->getValue('SELECT id_product FROM '._DB_PREFIX_.'product WHERE reference = \''.pSQL($product_xml->Reference).'\'');
$product = $id_product ? new Product((int)$id_product, true) : new Product();
$product->reference = $product_xml->Reference;
$product->price = (float)$product_xml->Price;
$product->active = (int)$product_xml->Active_product;
$product->weight = (float)$product_xml->Weight;
$product->minimal_quantity = (int)$product_xml->MinOrderQty;
$product->id_category_default = 2;
$product->name[1] = utf8_encode($product_xml->Products_name);
$product->description[1] = utf8_encode($product_xml->Description);
$product->description_short[1] = utf8_encode($product_xml->Short_Description);
$product->link_rewrite[1] = Tools::link_rewrite($product_xml->Products_name);
if (!isset($product->date_add) || empty($product->date_add))
$product->date_add = date('Y-m-d H:i:s');
$product->date_upd = date('Y-m-d H:i:s');
$id_product ? $product->updateCategories(array(2)) : $product->addToCategories(array(2));
$product->save();

echo 'Product <b>'.$product->name[1].'</b> '.($id_product ? 'updated' : 'created').'<br />';
}
}

Error message is :

Fatal error: Uncaught exception 'PrestaShopException' with message 'Property Product->link_rewrite is empty'

I tried to var_dump $product->link_rewrite1 inside the loop and it does have string "test-product".

What I am missing ?

Screenshot of complete error message :