Bug report: Application crashed with DetachedInstanceError

[edan-bainglass]

Automated report

This issue was created with the app's automated bug reporting feature.
Attached to this issue is the full traceback as well as an environment
fingerprint that contains information about the operating system as well as all
installed libraries.

Additional comments (optional):

Issue during development. Reporting as a reference for a PR in AWB.

Attachments

Traceback

/opt/conda/lib/python3.9/site-packages/sqlalchemy/orm/attributes.py in __get__(self, instance, owner)
    567             except AttributeError as err:
    568                 raise orm_exc.UnmappedInstanceError(instance) from err
--> 569             return self.impl.get(state, dict_)  # type: ignore[no-any-return]
    570 
    571 

/opt/conda/lib/python3.9/site-packages/sqlalchemy/orm/attributes.py in get(self, state, dict_, passive)
   1094                     return PASSIVE_NO_RESULT
   1095 
-> 1096                 value = self._fire_loader_callables(state, key, passive)
   1097 
   1098                 if value is PASSIVE_NO_RESULT or value is NO_VALUE:

/opt/conda/lib/python3.9/site-packages/sqlalchemy/orm/attributes.py in _fire_loader_callables(self, state, key, passive)
   1124             and key in state.expired_attributes
   1125         ):
-> 1126             return state._load_expired(state, passive)
   1127         elif key in state.callables:
   1128             callable_ = state.callables[key]

/opt/conda/lib/python3.9/site-packages/sqlalchemy/orm/state.py in _load_expired(self, state, passive)
    801         )
    802 
--> 803         self.manager.expired_attribute_loader(self, toload, passive)
    804 
    805         # if the loader failed, or this

/opt/conda/lib/python3.9/site-packages/sqlalchemy/orm/loading.py in load_scalar_attributes(mapper, state, attribute_names, passive)
   1601     session = state.session
   1602     if not session:
-> 1603         raise orm_exc.DetachedInstanceError(
   1604             "Instance %s is not bound to a Session; "
   1605             "attribute refresh operation cannot proceed" % (state_str(state))

DetachedInstanceError: Instance <DbUser at 0x797ad2173cd0> is not bound to a Session; attribute refresh operation cannot proceed (Background on this error at: https://sqlalche.me/e/20/bhk3)

Environment fingerprint

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potentially be used to determine what kind of calculation was performed at the
time of error.