fix add one product

products/models.py

@@ -468,7 +468,7 @@ class CagetteProducts(models.Model):
         try:
             today = datetime.date.today().strftime("%Y-%m-%d")
 
-            if len(supplier_ids) > 0:
+            if supplier_ids is not None and len(supplier_ids) > 0:
                 # Get products/supplier relation
                 f = ["product_tmpl_id", 'date_start', 'date_end', 'package_qty', 'price', 'name']
                 c = [['name', 'in', [ int(x) for x in supplier_ids]]]
@@ -503,8 +503,8 @@ class CagetteProducts(models.Model):
 
             sales_average_params = {
                 'ids': ptids, 
-                'from': '2019-04-10', 
-                'to': '2019-08-10',
+                # 'from': '2019-04-10', 
+                # 'to': '2019-08-10',
             }
             sales = CagetteProducts.get_template_products_sales_average(sales_average_params)
 
@@ -515,7 +515,7 @@ class CagetteProducts(models.Model):
             
             # Add supplier data to product data
             for i, fp in enumerate(filtered_products_t):
-                if len(supplier_ids) > 0:
+                if supplier_ids is not None and len(supplier_ids) > 0:
                     psi_item = next(item for item in psi if item["product_tmpl_id"] is not False and item["product_tmpl_id"][0] == fp["id"])
                     filtered_products_t[i]['suppliersinfo'] = [{
                         'supplier_id': int(psi_item["name"][0]),