feat: 删除字段时会更新 fieldindex

device_data_op/views.py

@@ -16,6 +16,22 @@ class TableAllDevCmdDefineView(ModelViewSet):
         serializer = self.get_serializer(self.get_queryset(), many=True)
         data = tree_data(serializer.data, 'cmd_name')
         return Response(data)
+    
+    def perform_destroy(self, instance):
+        """
+        删除某个字段，需要将字段的 index 更新
+        """
+        
+        # 获取改字段的 cmd_name
+        cmd_name = instance.cmd_name
+        super().perform_destroy(instance)
+        fields = self.get_queryset().filter(cmd_name=cmd_name).all()
+
+        # 更新字段的 index
+        for i in range(len(fields)):
+            print(fields[i])
+            fields[i].fieldindex = i + 1
+            fields[i].save()
 
 
 class TableDevCmdNamePollView(ModelViewSet):