diff --git a/hb_server/apps/wpm/views.py b/hb_server/apps/wpm/views.py
index 913712a..18f7577 100644
--- a/hb_server/apps/wpm/views.py
+++ b/hb_server/apps/wpm/views.py
@@ -1,6 +1,6 @@
 from django.shortcuts import render
 from rest_framework.generics import CreateAPIView, GenericAPIView
-from rest_framework.mixins import CreateModelMixin, ListModelMixin, RetrieveModelMixin
+from rest_framework.mixins import CreateModelMixin, DestroyModelMixin, ListModelMixin, RetrieveModelMixin
 from rest_framework.utils import serializer_helpers
 from rest_framework.utils.field_mapping import get_relation_kwargs
 from rest_framework.views import APIView
@@ -264,7 +264,7 @@ class OperationViewSet(ListModelMixin, RetrieveModelMixin, CreateModelMixin, Gen
     生产操作记录
     """
     perms_map={'*':'*'}
-    queryset = Operation.objects.select_related('step', 'material').all()
+    queryset = Operation.objects.select_related('step').all()
     serializer_class = OperationListSerializer
     filterset_fields = ['step', 'step__process', 'is_submited']
     ordering_fields = ['id']