From 43c4e936a7726e2212af749254650823eab7df4c Mon Sep 17 00:00:00 2001
From: Oliver <oliver.henry.walters@gmail.com>
Date: Thu, 2 Sep 2021 10:41:23 +1000
Subject: [PATCH] Fix on_delete for PurchaseOrderLineItem.destination

- Currently set to DO_NOTHING
- However when deleting a StockLocation which has a PurchaseOrderLineItem.destionation point to it, this will cause an IntegrityError
---
 InvenTree/order/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/InvenTree/order/models.py b/InvenTree/order/models.py
index e55f5203ba..ad2105bb44 100644
--- a/InvenTree/order/models.py
+++ b/InvenTree/order/models.py
@@ -778,7 +778,7 @@ class PurchaseOrderLineItem(OrderLineItem):
     )
 
     destination = TreeForeignKey(
-        'stock.StockLocation', on_delete=models.DO_NOTHING,
+        'stock.StockLocation', on_delete=models.SET_NULL,
         verbose_name=_('Destination'),
         related_name='po_lines',
         blank=True, null=True,