diff --git a/apps/wpm/filters.py b/apps/wpm/filters.py
index 91a59c68..9bd1a6d0 100644
--- a/apps/wpm/filters.py
+++ b/apps/wpm/filters.py
@@ -37,6 +37,7 @@ class WMaterialFilter(filters.FilterSet):
             "material": ["exact", "in"],
             "material__type": ["exact", "in"],
             "material__process": ["exact", "in"],
+            "material__process__name": ["exact", "contains", "in"],
             "belong_dept": ["exact"],
             "belong_dept__name": ["exact", "in"],
             "batch": ["exact"],
diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 941aa779..695a5778 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -154,6 +154,8 @@ class MlogViewSet(CustomModelViewSet):
     @transaction.atomic
     def perform_update(self, serializer):
         ins = serializer.instance
+        if ins.submit_time is not None:
+            raise ParseError('该日志已提交!')
         val_old = MlogSerializer(instance=ins).data
         serializer.save()
         val_new = MlogSerializer(instance=ins).data