[sqlalchemy-20] Add the needed DB context decorators in `db.api
`
The method ``_get_filter_query`` returns an active query and must be called always inside a DB context. Closes-Bug: #1976357 Change-Id: Idea915bd71bfb778f5009be9cf47eace83e11437
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@ -23,7 +23,6 @@ from oslo_utils import uuidutils
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# Common database operation implementations
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def _get_filter_query(obj_cls, context, query_field=None, query_limit=None,
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**kwargs):
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with obj_cls.db_context_reader(context):
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filters = _kwargs_to_filters(**kwargs)
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query = model_query.get_collection_query(
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context, obj_cls.db_model, filters, limit=query_limit,
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@ -31,6 +30,7 @@ def _get_filter_query(obj_cls, context, query_field=None, query_limit=None,
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return query
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@db_api.CONTEXT_READER
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def get_object(obj_cls, context, **kwargs):
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return _get_filter_query(obj_cls, context, **kwargs).first()
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