Using descision tables?

General
1

Hi,

Are there ways to process messages based on a decision table? I am looking into some complex automation scenarios, and can't get myself to build out every variation manually. For example a number of different states like:

  • time of day
  • lighting scene preselected
  • time since last trigger
  • mood of my son's hamster
  • ...

And then act on the result, for example change something within msg.payload or choose a specific output connector to send the data to.

I know that all of this can be done with individual nodes and haven't found anything related to "decision table" - maybe for a good reason?

2

You might try searching the flows site for "finite state machine" which might possibly be related to what you are asking for?

3

Interesting, that concept is new for me. I need to wrap my head around how to transfer it to my use case.

Thank you so far!

4

Certainly! In Node-RED, you can emulate a decision table by using input nodes, a Switch node for conditions, and Function nodes for actions. It's a modular and scalable approach, offering flexibility in handling diverse automation scenarios without manual configuration for each variation.

5

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