Trigger on change of multiple variables

Is it possible to trigger a python script when a set of variables has any changes? If so how?

If not, is it safe to get the values evaluated every second or even constantly watching the variables?

You can trigger on any change in a (one) variable. If you want to monitor several, but run the same script, you'll need to create a trigger for each variable. But you can put the script in an Action Group and then have all those triggers run the same group.

Yes but I would have to do this for over hundred variables.

Yes but I would have to do this for over hundred variables.

Then you probably need to rethink how you're setting those variables and why you need to monitor them.

Can you explain what you're actually doing with all those variables?

I have several devices and depending on their states I want to set a new state to be used in an app.

The calculations should be done on Indigo, not in the app.

I have several devices and depending on their states I want to set a new state to be used in an app.

The calculations should be done on Indigo, not in the app.

Sorry, can't help. The only other way I know to do this is to write a plugin that monitors the variables.

Thanks anyway.

The only way I know to do this is to use

Code: Select all

        indigo.variables.subscribeToChanges()

Which can only be used in a plugin. I tried to use it in a script, and got an error:

Code: Select all

>>> indigo.variables.subscribeToChanges()
Traceback (most recent call last):
  File "<console>", line 1, in <module>
ValueError: subscribeToChanges can only be called from plugins (not scripts or the interactive shell)
>>>


So you either need a plugin that can use subscribeToChanges(), or you need to use a standard Event Trigger. Unless someone else has written a plugin to do this already. Hmm.

Look what I found: http://www.indigodomo.com/pluginstore/category/4/

Group Change Listener looks promising. I will check that.

Thank you a lot!