add expiry date to po line item receive (#254)

Author: jacobfelknor

inventree/purchase_order.py

@@ -163,7 +163,7 @@ def getOrder(self):
         """
         return PurchaseOrder(self._api, self.order)
 
-    def receive(self, quantity=None, status=10, location=None, batch_code='', serial_numbers=''):
+    def receive(self, quantity=None, status=10, location=None, expiry_date='', batch_code='', serial_numbers=''):
         """
         Mark this line item as received.
 
@@ -184,6 +184,7 @@ def receive(self, quantity=None, status=10, location=None, batch_code='', serial
             location: Location ID, or a StockLocation item
 
         If given, the following arguments are also sent as parameters:
+            expiry_date
             batch_code
             serial_numbers
         """
@@ -210,6 +211,7 @@ def receive(self, quantity=None, status=10, location=None, batch_code='', serial
                     'quantity': quantity,
                     'status': status,
                     'location': location_id,
+                    'expiry_date': expiry_date,
                     'batch_code': batch_code,
                     'serial_numbers': serial_numbers
                 }