ephraimbuddy commented on code in PR #56422:
URL: https://github.com/apache/airflow/pull/56422#discussion_r2417391159
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airflow-core/src/airflow/models/serialized_dag.py:
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@@ -427,22 +427,24 @@ def write_dag(
# the serialized dag, the dag_version and the dag_code instead of
a new version
# if the dag_version is not associated with any task instances
latest_ser_dag = cls.get(dag.dag_id, session=session)
- if TYPE_CHECKING:
- assert latest_ser_dag is not None
- # Update the serialized DAG with the new_serialized_dag
- latest_ser_dag._data = new_serialized_dag._data
- latest_ser_dag._data_compressed =
new_serialized_dag._data_compressed
- latest_ser_dag.dag_hash = new_serialized_dag.dag_hash
- session.merge(latest_ser_dag)
- # The dag_version and dag_code may not have changed, still we
should
- # do the below actions:
- # Update the latest dag version
- dag_version.bundle_name = bundle_name
- dag_version.bundle_version = bundle_version
- session.merge(dag_version)
- # Update the latest DagCode
- DagCode.update_source_code(dag_id=dag.dag_id, fileloc=dag.fileloc,
session=session)
- return True
+
+ if latest_ser_dag:
Review Comment:
If there's a dag_version then we should have serdag. Can you check if
dag_version.serialized_dag would work? Should work, or we can improve the
DagVersion.get_latest_version to load the serdag when getting the latest
version.
Something like this:
`latest_ser_dag = dag_version.serialized_dag`
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