feat: 更新material的count

apps/inm/services.py

@@ -1,5 +1,6 @@
 from apps.inm.models import MIO, MIOItem, MaterialBatch
 from rest_framework.exceptions import ValidationError
+from django.db.models.aggregates import Sum
 
 
 class InmService:
@@ -39,4 +40,8 @@ class InmService:
                 mb.count = mb.count - i.count
                 if mb.count < 0:
                     raise ValidationError('批次库存不足,操作失败')
-                mb.save()
+                mb.save()
+            else:
+                raise ValidationError('不支持的操作')
+            material.count = MaterialBatch.objects.filter(material=material).aggregate(total=Sum('count')).get('total', 0)
+            material.save()