Attempt to fix problem with BH creation #255
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Attempt to blindly fix issue reported by Akaxia and Nicole. It is unclear why this issue arises sometimes and not others, but they report this fixes it.
```
2024-04-29 20:44:41,505 : Gathering BH tracking information for steps <TimeStep 'h568GML.cosmo75.4096gsHsbBH/h568GML.cosmo75.4096gsHsbBH.000064' z=16.65 t=0.23 Gyr> and <TimeStep 'h568GML.cosmo75.4096gsHsbBH/h568GML.cosmo75.4096gsHsbBH.000128' z=10.40 t=0.45 Gyr>
Traceback (most recent call last):
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/base.py", line 1719, in _execute_context
context = constructor(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/default.py", line 996, in _init_compiled
self.compiled_parameters = [
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/default.py", line 997, in <listcomp>
compiled.construct_params(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/sql/compiler.py", line 1041, in construct_params
pd[escaped_name] = value_param.effective_value
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/sql/elements.py", line 1599, in effective_value
return self.callable()
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/orm/relationships.py", line 1813, in _go
raise sa_exc.InvalidRequestError(
sqlalchemy.exc.InvalidRequestError: Can't resolve value for column dictionary.id on object <DictionaryItem at 0x7fefa0040070>; no value has been set for this column
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/noodle/miniconda3/bin/tangos", line 8, in <module>
sys.exit(main())
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/scripts/__init__.py", line 51, in main
args.func(args)
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/tools/__init__.py", line 53, in run
parallel_tasks.launch(obj.run_calculation_loop, [])
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/parallel_tasks/__init__.py", line 78, in launch
result = function(*args)
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/tools/changa_bh_importer.py", line 36, in run_calculation_loop
self._timelink_black_holes()
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/tools/changa_bh_importer.py", line 61, in _timelink_black_holes
self._generate_halolinks(pairs)
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/tools/changa_bh_importer.py", line 81, in _generate_halolinks
track_links_n, idf_n, idt_n = tracking.get_tracker_links(self._session, dict_obj_next)
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/tangos/tracking.py", line 35, in get_tracker_links
links = session.query(HaloLink).filter_by(relation=relation).all()
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/orm/query.py", line 2768, in all
return self._iter().all()
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/orm/query.py", line 2903, in _iter
result = self.session.execute(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/orm/session.py", line 1712, in execute
result = conn._execute_20(statement, params or {}, execution_options)
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/base.py", line 1631, in _execute_20
return meth(self, args_10style, kwargs_10style, execution_options)
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/sql/elements.py", line 332, in _execute_on_connection
return connection._execute_clauseelement(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/base.py", line 1498, in _execute_clauseelement
ret = self._execute_context(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/base.py", line 1725, in _execute_context
self._handle_dbapi_exception(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/base.py", line 2043, in _handle_dbapi_exception
util.raise_(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/util/compat.py", line 208, in raise_
raise exception
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/base.py", line 1719, in _execute_context
context = constructor(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/default.py", line 996, in _init_compiled
self.compiled_parameters = [
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/engine/default.py", line 997, in <listcomp>
compiled.construct_params(
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/sql/compiler.py", line 1041, in construct_params
pd[escaped_name] = value_param.effective_value
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/sql/elements.py", line 1599, in effective_value
return self.callable()
File "/Users/noodle/miniconda3/lib/python3.9/site-packages/SQLAlchemy-1.4.39-py3.9-macosx-10.9-x86_64.egg/sqlalchemy/orm/relationships.py", line 1813, in _go
raise sa_exc.InvalidRequestError(
sqlalchemy.exc.StatementError: (sqlalchemy.exc.InvalidRequestError) Can't resolve value for column dictionary.id on object <DictionaryItem at 0x7fefa0040070>; no value has been set for this column
[SQL: SELECT halolink.id AS halolink_id, halolink.halo_from_id AS halolink_halo_from_id, halolink.halo_to_id AS halolink_halo_to_id, halolink.weight AS halolink_weight, halolink.creator_id AS halolink_creator_id, halolink.relation_id AS halolink_relation_id
FROM halolink
WHERE halolink.relation_id = ?]
[parameters: [{}]]
```
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Attempt to blindly fix issue reported by Akaxia and Nicole. It is unclear why this issue arises sometimes and not others, but they report this fixes it.