Undefined index: EMPTY

[moreamazingnick]

Describe the bug

ErrorException in /usr/share/icingaweb2/modules/businessprocess/library/Businessprocess/BpNode.php:88 with message: Undefined index: EMPTY

To Reproduce

Create a Business Process Dummy without Nodes

Fix

    protected static $emptyStateSummary = array(
     ...
        'EMPTY'               => 0,
     ...
    );

• Icinga Web 2 version and modules (System - About): 2.10
• Web browser used:. Chrome
• Icinga 2 version used (icinga2 --version): 2.13.1
• PHP version used (php --version): 7.4
• Server operating system and version: Ubuntu 20.04
• business process 2.4.0

Additional context

Add any other context about the problem here.

[nilmerg]

Works fine for me without your change. Please give more detailed steps to reproduce this, or even an example configuration.

[moreamazingnick]

i hope that helps:
we have this config /etc/icingaweb2/modules/businessprocess/processes/Security.conf

### Business Process Config File ###
#
# Title           : Security
# Description     :
# Owner           : admin
# AddToMenu       : yes
# Backend         :
# Statetype       : soft
#
###################################

Customers =
display 0;Customers;Customers

Employees =
display 0;Employees;Employees

IT-Administration =
display 0;IT-Administration;IT-Administration

Authentication = Customers & Employees & IT-Administration
display 1;Authentication;Authentication

With the last module there was the message:
There are 4 missing nodes: Customers, Businessprocesses-Master;Hoststatus, Employees, IT-Administration

but now without the patch we get:
[Error]
Undefined index: EMPTY

[nilmerg]

Successfully reproduced it, thanks.