From bb91bb1ee2705d5f26fdc0e094031284797169a1 Mon Sep 17 00:00:00 2001
From: Nicola Brunner <brunnn@usi.ch>
Date: Thu, 7 May 2020 09:51:38 +0200
Subject: [PATCH] fixed warning message in device panel thanks to andrea

---
 smart-hut/src/components/dashboard/DevicePanel.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/smart-hut/src/components/dashboard/DevicePanel.js b/smart-hut/src/components/dashboard/DevicePanel.js
index 23db867..f55ee11 100644
--- a/smart-hut/src/components/dashboard/DevicePanel.js
+++ b/smart-hut/src/components/dashboard/DevicePanel.js
@@ -25,7 +25,7 @@ class DevicePanel extends Component {
   render() {
     return (
       <Card.Group centered style={{ paddingTop: "3rem" }}>
-        {this.props.devices.length !== 0 ? (
+        {this.props.numbeOfRooms > 0 ? (
           <React.Fragment>
             {this.props.devices.map((e, i) => {
               return <Device key={i} tab={this.props.tab} id={e.id} />;
@@ -70,6 +70,9 @@ const mapStateToProps = (state, _) => ({
     return state.active.activeRoom === -1;
   },
   activeRoom: state.active.activeRoom,
+  get numbeOfRooms() {
+    return Object.keys(state.rooms).length;
+  },
 });
 const DevicePanelContainer = connect(
   mapStateToProps,