edit assignment

apps/pos_device/web/api/v1/serilaizers/client.py

@@ -13,7 +13,7 @@ class POSClientSerializer(ModelSerializer):
         org = attrs['organization']
 
         # check for duplicate organization client
-        if org:
+        if not self.instance and org:
             if self.Meta.model.objects.filter(organization=org).exists():
                 raise APIException("قبلا کلاینت با این سازمان ثبت شده است", code=status.HTTP_403_FORBIDDEN)  # noqa
 

apps/pos_device/web/api/v1/serilaizers/device.py

@@ -56,8 +56,9 @@ class DeviceAssignmentSerializer(ModelSerializer):
         device = attrs['device']
         client = attrs['client']
 
-        if self.Meta.model.objects.filter(device=device, client=client).exists():
-            raise pos_exceptions.DeviceAlreadyAssigned()
+        if not self.instance:
+            if self.Meta.model.objects.filter(device=device, client=client).exists():
+                raise pos_exceptions.DeviceAlreadyAssigned()
 
         return attrs