From 20e209ced2fa40a2a963c537f1aa423eb2e64778 Mon Sep 17 00:00:00 2001
From: caoqianming <caoqianming@foxmail.com>
Date: Tue, 23 Jan 2024 18:03:05 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20update=5Fmb=E6=9B=B4=E6=96=B0=E7=89=A9?=
 =?UTF-8?q?=E6=96=99=E5=BA=93=E5=AD=98=E7=9A=84bug?=
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---
 apps/inm/services.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/apps/inm/services.py b/apps/inm/services.py
index 6865bb0b..dac653d5 100644
--- a/apps/inm/services.py
+++ b/apps/inm/services.py
@@ -63,6 +63,8 @@ class InmService:
             else:
                 raise ParseError('不支持的操作')
             material_count = MaterialBatch.objects.filter(
-                material=material).aggregate(total=Sum('count')).get('total', 0)
+                material=material).aggregate(total=Sum('count'))['total']
+            if material_count is None:
+                material_count = 0
             Material.objects.filter(id=material.id).update(
                 count=material_count)