improvements to WC migration script

utils/woocommerce.py

@@ -53,6 +53,7 @@ def create_imported_product(info, company, history, user):
         'creator': user.id if user is not None else None,
         'history': history.id,
         'url': info['permalink'],
+        'stock': info['stock_quantity'],
         }
     # parse the product info
     for key in info:
@@ -144,6 +145,13 @@ def migrate_shop_products(url, key, secret, user=None, version="wc/v3"):
 
         counter = 0
         for product in products:
+            # check if exists
+            if product['sku'] and Product.objects.filter(sku=product['sku']).exists():
+                # product already registered
+                logging.info(f"Product with sku [{product['sku']}] already registered")
+                print(f"Product with sku [{product['sku']}] already registered")
+                # TODO: UPDATE instance??
+                continue
             new = create_imported_product(product, company, history, user)
             if new is not None:
                 new_products.append(new)