added history endpoint

app/applicationlayer/cms/form/header/views.py

@@ -590,7 +590,7 @@ class ChangeRequestFormsViewset(viewsets.ModelViewSet):
                                         pk=instance.id)
 
         new_instance = model_to_dict(form_header)
-        
+
         # save history in form header
         crhistory_save(
             batchno,
@@ -1102,6 +1102,33 @@ class ChangeRequestFormsViewset(viewsets.ModelViewSet):
             status=status.HTTP_200_OK
         )
 
+
+    @action(
+        methods=['GET'], detail=True,
+        url_path='history', url_name='history'
+    )
+    def history(self, request, *args, **kwargs):
+
+        instance = self.get_object()
+        history = models.ChangeRequestHistory.objects.filter(
+            Q(form_code=instance) &
+            Q(main_action='RESUBMIT') &
+            Q(entity='CR_FRM_APPROVER')
+        ).values()
+        list_his = []
+        for data in history:
+            list_his.append(json.loads(data['fromValue']))
+        # print(type(model_to_dict(history)))
+        # ser = ChangeRequestFormApproversSerializer(data=list_his, many=True)
+        # ser.is_valid(raise_exception=False)
+        # print(ser.data)
+        
+
+        return Response(
+            {"results":list_his},
+            status=status.HTTP_200_OK
+        )
+
 class ChangeRequestFormPost(APIView):
 
     @transaction.atomic()