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fix: also re-attach a detached source to the TimedBelief object #745

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fix: also re-attach a detached source to the TimedBelief object #745

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10 changes: 6 additions & 4 deletions flexmeasures/data/models/time_series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -570,13 +570,15 @@ def __init__(
source: tb.DBBeliefSource,
**kwargs,
):
# get a Sensor instance attached to the database session (input sensor is detached)
# get a Sensor instance attached to the database session (if input sensor is detached)
# check out Issue #683 for more details
inspection_obj = inspect(sensor, raiseerr=False)
if (
inspection_obj and inspection_obj.detached
): # fetch Sensor only when it is detached
if inspection_obj and inspection_obj.detached:
sensor = Sensor.query.get(sensor.id)
# do the same for DataSource
inspection_obj = inspect(source, raiseerr=False)
if inspection_obj and inspection_obj.detached:
source = DataSource.query.get(source.id)

tb.TimedBeliefDBMixin.__init__(self, sensor, source, **kwargs)
tb_utils.remove_class_init_kwargs(tb.TimedBeliefDBMixin, kwargs)
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