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Fix DateTimeTrigger not triggering on restored state #3277

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merged 1 commit into from
Jan 10, 2023

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J-N-K
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@J-N-K J-N-K commented Dec 28, 2022

Reported on the forum: https://community.openhab.org/t/trigger-based-on-datetime-item-not-firing-after-restart-server/142608

During startup most likely the item state is UndefType.NULL which results in no triggering. States are restored from persistence by directly setting the item state, not by an ItemStateEvent and were therefore missed. Since changing the trigger is not necessary when the state updates but does not change, the event listening was changed to ItemStateChangedEvent only.

Signed-off-by: Jan N. Klug github@klug.nrw

@J-N-K J-N-K added the bug An unexpected problem or unintended behavior of the Core label Dec 28, 2022
@J-N-K J-N-K requested a review from a team as a code owner December 28, 2022 19:53
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This pull request has been mentioned on openHAB Community. There might be relevant details there:

https://community.openhab.org/t/trigger-based-on-datetime-item-not-firing-after-restart-server/142608/9

During startup most likely the item state is `UndefType.NULL` which results in no triggering. States are restored from persistence by directly setting the item state, not by an `ItemStateEvent` and were therefore missed. Since changing the trigger is not necessary when the state updates but does not change, the event listening was changed to `ItemStateChangedEvent` only.

Signed-off-by: Jan N. Klug <github@klug.nrw>
@J-N-K J-N-K force-pushed the bug-datetimetrigger branch from fb123da to e26d664 Compare January 3, 2023 19:12
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lgtm, thanks!

@kaikreuzer kaikreuzer merged commit 6cd6f6a into openhab:main Jan 10, 2023
@kaikreuzer kaikreuzer added this to the 4.0 milestone Jan 10, 2023
@J-N-K J-N-K deleted the bug-datetimetrigger branch January 10, 2023 21:16
splatch pushed a commit to ConnectorIO/copybara-hab-core that referenced this pull request Jul 12, 2023
During startup most likely the item state is `UndefType.NULL` which results in no triggering. States are restored from persistence by directly setting the item state, not by an `ItemStateEvent` and were therefore missed. Since changing the trigger is not necessary when the state updates but does not change, the event listening was changed to `ItemStateChangedEvent` only.

Signed-off-by: Jan N. Klug <github@klug.nrw>
GitOrigin-RevId: 6cd6f6a
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3 participants