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Duplicating product carriers in PrestaShop and ThirtyBees – text version

Create a new override in override/controllers/admin, and name it AdminProductsController.php:

class AdminProductsController extends AdminProductsControllerCore
{
}

We need to copy the original ProcessDuplicate method, and paste it into our override. You will see it’s calling a bunch of methods that start with “duplicate”. Add the following right after Product::duplicateSuppliers($id_product_old, $product->id):

            && Product::duplicateCarriers($id_product_old, $product->id)

Next, we have to add the method we are calling to the Product class. We will use another override, so let’s create Product.php in override/classes

Open it up, and paste the following, or if you have a product override already in place, just copy over the DuplicateCarriers method:

    public static function duplicateCarriers($id_product_old, $id_product_new)
    {
        $result = Db::getInstance()->executeS('
		SELECT *
		FROM `'._DB_PREFIX_.'product_carrier`
		WHERE `id_product` = '.(int)$id_product_old);

        foreach ($result as $row) {
            unset($row['id_product_carrier']);
            $row['id_product'] = $id_product_new;
            if (!Db::getInstance()->insert('product_carrier', $row)) {
                return false;
            }
        }

        return true;
    }	

Save, then reach the cache/ folder and erase class_index.php, so that the new overrides can get loaded in the system.

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