Lot invoicing + Fee padding

modules/purchase_trade/fee.py

@@ -687,6 +687,8 @@ class Fee(ModelSQL,ModelView):
     def get_padding_quantity(self):
         if Transaction().context.get('_purchase_trade_ignore_fee_padding'):
             return Decimal(0)
+        if getattr(self, 'state', None) == 'invoiced':
+            return Decimal(0)
         if not getattr(self, 'add_padding', False):
             return Decimal(0)
         return sum(

modules/purchase_trade/tests/test_module.py

@@ -3095,6 +3095,7 @@ class PurchaseTradeTestCase(ModuleTestCase):
         fee.mode = 'pprice'
         fee.price = Decimal('2')
         fee.add_padding = True
+        fee.state = 'not invoiced'
         fee.unit = unit
         fee.quantity = Decimal('5')
         fee.line = None
@@ -3131,6 +3132,8 @@ class PurchaseTradeTestCase(ModuleTestCase):
         with patch.object(
                 fee, '_get_effective_fee_lots', return_value=[lot]):
             self.assertEqual(fee.get_amount(), Decimal('14.00'))
+            fee.state = 'invoiced'
+            self.assertEqual(fee.get_amount(), Decimal('10.00'))
             with Transaction().set_context(
                     _purchase_trade_ignore_fee_padding=True):
                 self.assertEqual(fee.get_amount(), Decimal('10.00'))