mini

backend/shop/serializers.py

@@ -92,7 +92,7 @@ class CourseEnrollmentSerializer(serializers.ModelSerializer):
     课程报名序列化器
     """
     course_title = serializers.CharField(source='course.title', read_only=True)
-    ref_code = serializers.CharField(write_only=True, required=False, allow_blank=True)
+    ref_code = serializers.CharField(write_only=True, required=False, allow_blank=True, allow_null=True)
 
     class Meta:
         model = CourseEnrollment
@@ -124,7 +124,7 @@ class ServiceOrderSerializer(serializers.ModelSerializer):
     """
     service_name = serializers.CharField(source='service.title', read_only=True)
     # 接收前端传来的 ref_code
-    ref_code = serializers.CharField(write_only=True, required=False, allow_blank=True)
+    ref_code = serializers.CharField(write_only=True, required=False, allow_blank=True, allow_null=True)
 
     class Meta:
         model = ServiceOrder
@@ -212,7 +212,7 @@ class OrderSerializer(serializers.ModelSerializer):
     salesperson_name = serializers.CharField(source='salesperson.name', read_only=True)
     salesperson_code = serializers.CharField(source='salesperson.code', read_only=True)
     # 接收前端传来的 ref_code，用于查找 Salesperson
-    ref_code = serializers.CharField(write_only=True, required=False, allow_blank=True)
+    ref_code = serializers.CharField(write_only=True, required=False, allow_blank=True, allow_null=True)
     
     class Meta:
         model = Order