Mark a SalesOrder as "shipped"

- Option to hide non-stock items from stock list
- Update models with new feature

InvenTree/stock/models.py

@@ -634,6 +634,8 @@ class StockItem(MPTTModel):
         # Remove the specified quantity from THIS stock item
         self.take_stock(quantity, user, 'Split {n} items into new stock item'.format(n=quantity))
 
+        # Return a copy of the "new" stock item
+
     @transaction.atomic
     def move(self, location, notes, user, **kwargs):
         """ Move part to a new location.
@@ -656,6 +658,9 @@ class StockItem(MPTTModel):
         except InvalidOperation:
             return False
 
+        if not self.in_stock:
+            raise ValidationError(_("StockItem cannot be moved as it is not in stock"))
+
         if quantity <= 0:
             return False