How to define metadata with subkeys?

Xenophon · October 18, 2020, 8:29pm

Hi folks,

does anybody know, how I can define metadata with subkeys in my item files? With the helper libraries for openHAB Scripted Automation its not a big deal, but in an item file I was not able to do so. I also like to know if or how I can define the metadata without the value and just the config if possible in an item file.

denominator · October 19, 2020, 7:19am

Here is an Item configured with meta data to do what I want it to do in an item file.

Dimmer Dining_fan "Dining Fan" { ga="Fan" [ speeds="0=off:zero,1=slow:low:one:on,2=medium:two,3=high:three:100", lang="en", ordered=true, roomHint="Dining" ], channel="mqtt:topic:myMQTTBroker:fan1:fanspeed" }

Xenophon · October 19, 2020, 7:59am

Thx for your example, but that’s not what I wanted. You have no subkeys just plain key-value-pairs. Seems I can’t defined what I want to define in an item file. In the example “Area Triggers and Actions” of the helper libraries for openHAB Scripted Automation I found the following text:

It is possible to add simple Metadata to Items through .items files, but this is very limited and does not support the hierarchical key structures used here.

denominator · October 19, 2020, 8:54am

Did you see the script to add metadata.

github.com

openhab-scripters/openhab-helper-libraries/blob/master/Community/Area Triggers and Actions/automation/jsr223/python/personal/area_triggers_and_actions/update_metadata.py.example

from core.metadata import set_metadata

'''
# which Items have an `area_triggers_and_actions` namespace?
from core.metadata import get_metadata
from core.log import logging, LOG_PREFIX

log = logging.getLogger("{}.area_triggers_and_actions.update_metadata".format(LOG_PREFIX))
for item in ir.getAll():
    metadata = get_metadata(item.name, "area_triggers_and_actions")
    if metadata:
        log.warn("{}: {}".format(item.name, metadata))
'''

'''
# remove all metadata with a specific namespace
from core.metadata import remove_metadata

for item in ir.getAll():
    remove_metadata(item.name, "Area_Triggers_and_Actions")

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Xenophon · October 19, 2020, 9:22am

Yes, I saw it and I will do something similar.