From 68c28918398cff377ad4cf17c739e24b4f9efe28 Mon Sep 17 00:00:00 2001
From: caoqianming <caoqianming@foxmail.com>
Date: Fri, 1 Dec 2023 09:53:11 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20route=E5=88=9B=E5=BB=BA=E6=97=B6?=
 =?UTF-8?q?=E7=9A=84=E6=A0=A1=E9=AA=8C?=
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---
 apps/mtm/serializers.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/apps/mtm/serializers.py b/apps/mtm/serializers.py
index 6e8926d1..f13b0679 100644
--- a/apps/mtm/serializers.py
+++ b/apps/mtm/serializers.py
@@ -150,7 +150,8 @@ class RouteSerializer(CustomModelSerializer):
 
     def create(self, validated_data):
         process = validated_data['process']
-        if process and Route.objects.filter(material=validated_data['material'], process=process).exists():
+        material = validated_data.get('material', None)
+        if material and process and Route.objects.filter(material=material, process=process).exists():
             raise ValidationError('已选择该工序')
         with transaction.atomic():
             instance = super().create(validated_data)