diff --git a/hb_server/apps/mtm/views.py b/hb_server/apps/mtm/views.py
index 3600169..0c61d43 100644
--- a/hb_server/apps/mtm/views.py
+++ b/hb_server/apps/mtm/views.py
@@ -3,7 +3,7 @@ from rest_framework.viewsets import ModelViewSet, GenericViewSet
 from rest_framework.mixins import CreateModelMixin, ListModelMixin, UpdateModelMixin, RetrieveModelMixin, DestroyModelMixin
 
 from apps.mtm.models import InputMaterial, Material, OutputMaterial, Process, ProductProcess, Step, UsedStep
-from apps.mtm.serializers import InputMaterialListSerializer, InputMaterialSerializer, InputMaterialUpdateSerializer, MaterialDetailSerializer, MaterialSerializer, MaterialSimpleSerializer, OutputMaterialListSerializer, OutputMaterialSerializer, OutputMaterialUpdateSerializer, ProductProcessListSerializer, ProductProcessUpdateSerializer, ProcessSerializer, StepSerializer, UsedStepCreateSerializer, UsedStepListSerializer
+from apps.mtm.serializers import InputMaterialListSerializer, InputMaterialSerializer, InputMaterialUpdateSerializer, MaterialDetailSerializer, MaterialSerializer, MaterialSimpleSerializer, OutputMaterialListSerializer, OutputMaterialSerializer, OutputMaterialUpdateSerializer, ProductProcessListSerializer, ProductProcessUpdateSerializer, ProcessSerializer, StepDetailSerializer, StepSerializer, UsedStepCreateSerializer, UsedStepListSerializer
 from apps.system.mixins import CreateUpdateModelAMixin, OptimizationMixin
 from rest_framework.decorators import action
 from rest_framework.response import Response
@@ -73,6 +73,10 @@ class StepViewSet(CreateUpdateModelAMixin, CreateModelMixin, UpdateModelMixin, R
     filterset_fields = ['process']
     ordering = ['sort']
 
+    def get_serializer_class(self):
+        if self.action == 'retrieve':
+            return StepDetailSerializer
+        return StepSerializer
 
 # class ProductProcessViewSet(PageOrNot, CreateModelMixin, UpdateModelMixin, ListModelMixin, DestroyModelMixin, GenericViewSet):
 #     """
diff --git a/hb_server/apps/wf/services.py b/hb_server/apps/wf/services.py
index aea2eaf..2337b95 100644
--- a/hb_server/apps/wf/services.py
+++ b/hb_server/apps/wf/services.py
@@ -162,15 +162,17 @@ class WfService(object):
         state = ticket.state
         if participant_type == State.PARTICIPANT_TYPE_PERSONAL:
             if user.id != participant:
-                return dict(permission=False, need_accept=False, in_add_node=False, msg="非当前处理人")
+                return dict(permission=False, msg="非当前处理人")
         elif participant_type in [State.PARTICIPANT_TYPE_MULTI, State.PARTICIPANT_TYPE_DEPT, State.PARTICIPANT_TYPE_ROLE]:
             if user.id not in participant:
-                return dict(permission=False, need_accept=False, in_add_node=False, msg="非当前处理人")
+                return dict(permission=False, msg="非当前处理人")
             current_participant_count = len(participant.split(','))
-        need_accept = False
         if current_participant_count >1 and state.distribute_type == State.STATE_DISTRIBUTE_TYPE_ACTIVE:
-            # 如果是主动接单
-            need_accept = True
+            return dict(permission=False, msg="需要先接单再处理")
+        if ticket.in_add_node:
+            return dict(permission=False, msg="工单当前处于加签中,请加签完成后操作")
+        return dict(permission=True, msg="")
+           
 
 
 
diff --git a/hb_server/apps/wf/views.py b/hb_server/apps/wf/views.py
index 67d7e09..5bf968a 100644
--- a/hb_server/apps/wf/views.py
+++ b/hb_server/apps/wf/views.py
@@ -1,8 +1,9 @@
+from django.core.exceptions import AppRegistryNotReady
 from rest_framework.response import Response
 from rest_framework import serializers
 from rest_framework.mixins import CreateModelMixin, DestroyModelMixin, ListModelMixin, RetrieveModelMixin, UpdateModelMixin
 from apps.wf.serializers import CustomFieldSerializer, StateSerializer, TicketCreateSerializer, TicketSerializer, TransitionSerializer, WorkflowSerializer
-from django.shortcuts import render
+from django.shortcuts import get_object_or_404, render
 from rest_framework.viewsets import GenericViewSet, ModelViewSet
 from rest_framework.decorators import action, api_view
 from apps.wf.models import CustomField, Ticket, Workflow, State, Transition, TicketFlow
@@ -148,14 +149,18 @@ class TicketViewSet(OptimizationMixin, CreateUpdateCustomMixin, CreateModelMixin
                         participant=ticket.create_by, transition=transition)
         return Response(TicketSerializer(instance=ticket).data)
 
-    
 
-    def patch(self, request, *args, **kwargs):
+    @action(methods=['post'], detail=True, perms_map={'get':'*'})
+    def handle(self, request, pk=None):
         """
         处理工单
         """
+        try:
+            ticket = Ticket.objects.get(pk=pk)
+        except:
+            raise APIException('工单不存在')
         data = request.data
-        pass
+        result = WfService.ticket_handle_permission_check()
 
     @action(methods=['get'], detail=True, perms_map={'get':'*'})
     def flowsteps(self, request, pk=None):