Detect all Item-Changes within a Group

[Apfeltee (Dan Schil)]

Hello Community,

is it possible to get and trigger a Rule by any Item-Changes within an item-group?
So e.g. I have a Group with the name TestGroup and two items with the names test1 and test2.

Now I want to write a rule, that triggers if any of the both items (test1 or test2) of the Group TestGroup changes their Values.
Note: I dont want to write a Rule, that triggers manually in case of any single item, because i don’t have only 2 items in my Group. It was just an example.

So is their a chance, to programm such a Rule, that detects automatically an item-change within a group?
And if yes, is it also possible, to address the specific item?

[sihui]

Design Pattern: Working with Groups in Rules

Edit: Updates for OH 4, inclusion of JS Scripting and Blockly examples, removed the doors example as it’s superfluous. Please see Design Pattern: What is a Design Pattern and How Do I Use Them for how to read and use DPs. Problem Statement One powerful way to consolidate code in rules is to use array/list manipulation operations on the members of a Group. For example, filter down to just those members that are ON, get a list of the labels of those Items that are NULL, etc. Concept [image] T…

[Apfeltee (Dan Schil)]

Could you please show me the exact location for the answer of my question?

Something like:

when
    Item vGarageOpener1 changed or
    Item vGarageOpener2 changed or
    Item vFrontDoor changed or
    Item vBackDoor changed or
    Item vGarageDoor changed
then

is not an answer, I’m looking for.

[sihui]

I’m happy to click the forum search button for you:

Features for Rules that work with Groups

Introduction This post provides an overview of two features that have been added to openHAB recently to make it easier to write rules that work with groups of items. These features only apply to rules defined in .rules files (also know as DSL Rules), and not any other types of rules/scripts such as those for the Experimental Rule Engine or JSR223 Scripting. The following sections will provide examples of the usage of each feature. These examples will be based on the items shown here. Group All…

Feature: “Member of” Rule Triggers

New rule trigger options have been added that allow rules to operate on items that are members of groups. Group member based events use one or more of the following trigger formats.