Hey , i wanted to know if there is a possibility to automatically send item name and the items new state on change. I m trying to export all these Data for external use such as Data-analytics. Kind regards

Most of the persistence-services in openHAB do just that. Take a look at influxdb, if you set it up with everyChange it will log all item changes with item name, value and time. You can then query the database from another application using a REST API.

Thanks for the fast reply, this solutions seems to me like adding some extra steps, do you maybe know if i can catch item events via rules ? kind regards

I guess you could, but that would be even more steps, and rather complicated ones too. The persistence services are there for a reason… You could perhaps use somthing like: https://community.openhab.org/t/design-pattern-working-with-groups-in-rules/20512 But that also reqires a persistence servic…

thank you for your insight :slight_smile:

following this Topic would it be possible to get the name&State of the member that last changed ? @pacive @rlkoshak [image] Get the member of a Group that triggered the rule Tutorials & Examples Many run into a situation where they want to have a rule triggere…

Yes, but the gMyGroup.members.sortBy[lastUpdate].last requires a persistence service for the lastUpdate property, otherwise openHAB has no way of knowing when an item was updated.

If you want to do data analytics, how do you collect the data? If using (My-)SQL you get Name and Value whenever an item gets persisted in a sql database (one table each item), you could even use logging persistence (when on openHAB1) and simply get a text file with the format timestamp - itemname …

@pacive now i understand why the persistence you recommended seems like the easiest way @Udo_Hartmann using (my-)sql persistence, does every item get their own table automatically? Im on OH2 Thanks for the help :slight_smile:

Glad to help, good luck getting eferything together! :smiley:

another last question if i got the gMyGroup.members.sortBy[lastUpdate].last how do i get the name and status, since i expect it to be a list(i guessed here from the sortBy)

Automatic sending of events

Setup, Configuration and Use Scripts & Rules

pinks (Daniel Docekal) October 25, 2017, 7:42am 6

following this Topic would it be possible to get the name&State of the member that last changed ?
@pacive @rlkoshak