From 8c283b3ab33f5c72d813adada1fd0f5417e7f5df Mon Sep 17 00:00:00 2001
From: Alexandre Fayolle <alexandre.fayolle@camptocamp.com>
Date: Tue, 23 Jun 2020 19:05:54 +0200
Subject: [PATCH] [FIX] command key must be a string

not a list
---
 stock_vertical_lift/models/vertical_lift_command.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/stock_vertical_lift/models/vertical_lift_command.py b/stock_vertical_lift/models/vertical_lift_command.py
index 39883e9be..42491e527 100644
--- a/stock_vertical_lift/models/vertical_lift_command.py
+++ b/stock_vertical_lift/models/vertical_lift_command.py
@@ -35,7 +35,10 @@ class VerticalLiftCommand(models.Model):
 
     def _get_key(self, answer):
         key = answer.split("|")[1:2]
-        return key
+        if key:
+            return key[0]
+        else:
+            return ''
 
     @api.model_create_multi
     def create(self, vals_list):