add some fields to transaction & sale item

apps/warehouse/services/services.py

@@ -3,7 +3,8 @@ from apps.warehouse.models import (
     InventoryEntry,
     InventoryQuotaSaleTransaction,
     InventoryQuotaSaleItem,
-    ExtraSale
+    ExtraSale,
+    QuotaPreSaleItem
 )
 from apps.product.models import QuotaDistribution
 from apps.core.models import SystemConfig
@@ -87,7 +88,34 @@ def create_extra_sale(
             sale_item.quota_distribution.warehouse_balance = 0
             sale_item.quota_distribution.save()
 
+            # set transaction as free sale
+            transaction.free_sale_state = True
+            transaction.save()
+
+            # set sale item as extra sale
+            sale_item.is_extra = True
+            sale_item.save()
+
             return extra_sale
         pass
     pass
 
+
+def create_pre_sale(
+        transaction: InventoryQuotaSaleTransaction,
+        sale_item: InventoryQuotaSaleItem
+) -> typing.Any:
+    """
+    :param transaction
+    :param sale_item
+    Create pre_sale for distributions
+    """
+
+    if sale_item.quota_distribution.pre_sale:
+        # create pre sale
+        pre_sale = QuotaPreSaleItem.objects.create(
+            transaction=transaction,
+            sale_item=sale_item,
+            distribution=sale_item.quota_distribution,
+            weight=sale_item.weight
+        )