Javascript script

Setup, Configuration and Use Scripts & Rules
1
  • Platform information:
    • Hardware: Intel, 16GB RAM
    • OS: Windows 10
    • Java Runtime Environment: Zulu newest LTS
    • openHAB version: 3.0.0.0
  • Issue of the topic:
  • Please post configurations (if applicable):
    • Items configuration related to the issue
    • Sitemap configuration related to the issue
    • Rules code related to the issue
    • Services configuration related to the issue
  • If logs where generated please post these here using code fences:

Hello,

I would like to access openhab.variables in my Javascript script:

print(ā€˜EZ_DoNotDisturb.state.toStringā€™);
print(Staubsauger_Kueche.state.toString);

if (Staubsauger_Kueche == OFF) {
raum = 17;
print(raum);
}

But the state of the variable is not printed. Could you please help me to find the syntax errors?

Addion to that, is there somehow a documentation how to programm Javascript scripts in Openhab? I just found a very tiny one. Some examples would be great.

Thanks a lot in advance,
Peter

2

Welcome to the openHAB forum :wave:

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3

Nice, you helped me :slight_smile:

For example:
// Get the state of an Item
logger.info("The state of ServiceStatuses is " + items.ServiceStatuses);

Thank you!

4

If I run the following Javascript script:

print(items.Staubsauger_Kueche);

if (items.Staubsauger_Kueche == ON) {
  var raum = 17;
  print(raum);
}

if (items.Staubsauger_Flur == ON) {
  var raum = raum + ',' + 18;
  print(raum);
}

events.sendCommand(event.EZ_ExecuteCommand, "app_segment_clean[18]");

I got following error:
ON
17
17,18

23:54:52.508 [ERROR] [.internal.handler.ScriptActionHandler] - Script execution of rule with UID ā€˜443f42942aā€™ failed: ReferenceError: ā€œeventā€ is not defined in at line number 28

Does someone have a hint for me to fix the error?

5

event only exists when the rule is triggered by an Item event. If it was triggered manually (by pressing the play button), from another rule, or via a time based trigger.

And it appears you are misusing event here. To send a command to an Item, pass the name of the Item as a String.

events.sendCommand("EZ_ExecuteCommand", "app_segment_clean[18]");