Merge b0bda7c into 726cd32

documentation/changelog.rst

@@ -27,6 +27,12 @@ Infrastructure / Support
 
 .. warning:: The setting `FLEXMEASURES_PLUGIN_PATHS` has been deprecated since v0.7. It has now been sunset. Please replace it with :ref:`plugin-config`.
 
+v0.13.2 | Jun XX, 2023
+=======================
+Bugfixes
+---------
+* Fix failing to save results of scheduling and reporting on subsequent calls for the same time period [see `PR #709 <https://github.com/FlexMeasures/flexmeasures/pull/709>`_]
+
 
 v0.13.1 | May 12, 2023
 =======================

flexmeasures/data/models/time_series.py

@@ -10,6 +10,7 @@
 from sqlalchemy.ext.mutable import MutableDict
 from sqlalchemy.orm import Query, Session
 from sqlalchemy.schema import UniqueConstraint
+from sqlalchemy import inspect
 import timely_beliefs as tb
 from timely_beliefs.beliefs.probabilistic_utils import get_median_belief
 import timely_beliefs.utils as tb_utils
@@ -584,6 +585,14 @@ def __init__(
         source: tb.DBBeliefSource,
         **kwargs,
     ):
+        # get a Sensor instance attached to the database session (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
+            sensor = Sensor.query.get(sensor.id)
+
         tb.TimedBeliefDBMixin.__init__(self, sensor, source, **kwargs)
         tb_utils.remove_class_init_kwargs(tb.TimedBeliefDBMixin, kwargs)
         db.Model.__init__(self, **kwargs)