Add/delete Group Members in Blockly?

[rlkoshak (Rich Koshak)]

@mimafamilie

Which code does Blockly actually generate, ECMA 5.1?

Yes, for now. Eventually it will produce 2021 and use the openhab-js library.

@mimafamilie

I should know the syntax to add an item to a group in a Blockly Block “Inline Script” and add a member to the group accordingly. Unfortunately I can’t do it.

This is a really advanced thing and there are only a few cases where this approach makes sense over alternative solutions. This smells a whole lot like an XY Problem.

@mimafamilie

I also cannot implement this example: [Javascript: how to dynamically add items to groups? - #2 by Gonzo666

That’s ECMAScript 5.1. without seeing the errors it’s impossible to say what’s wrong.

Using the JS Scripting add-on it would be as simple as:

items.getItem(triggeringItem.name).addGroups('gDoorOverdue');

@mimafamilie

Since I have many different scenes and things, I don’t want to query all scenes for their validity every time I update a lamp.

openHAB is event driven. When the light changes, trigger a rule based on that event and recalculate the scene state.

@mimafamilie

Also I want that a new scene can be defined without modifying the code/model.

Have you seen Scene Control Suite - Scene Activation?

@mimafamilie

For this I need the possibility to mark the things that are currently valid for an active scene.

Typically tags are used for this. But Groups could be used too. It’s still not clear though why Items would need to have their Group membership changed on the fly. The Scene is either ON or it’s not. When an Item changes state away from a scene, that doesn’t mean it’s no longer a part of that scene, it just means that scene is no longer active.

@mimafamilie

For this the tags would be well suited, but I can’t write them

Well that’s a different problem. Why can’t you write them?