Lee-W commented on code in PR #40868:
URL: https://github.com/apache/airflow/pull/40868#discussion_r1688140014
##########
airflow/datasets/__init__.py:
##########
@@ -271,6 +306,20 @@ def iter_datasets(self) -> Iterator[tuple[str, Dataset]]:
yield k, v
seen.add(k)
+ def iter_dag_deps(self, *, source: str, target: str) ->
Iterator[DagDependency]:
+ """
+ Iterate dataset, dataset aliases and their resolved datasets as dag
dependency.
+
+ :meta private:
+ """
+ dag_deps: set[DagDependency] = set()
Review Comment:
Got your point! Yep, it's no longer in `iter_dag_dependencies`. But it still
happens in `airflow/serialization/serialized_objects.py`. So I think it's still
not ` strictly in the UI layer (i.e. somewhere in API or frontend),` But in the
"current" (before this PR) version, we're using `iter_datasets` to
[detect_dag_dependencies](https://github.com/apache/airflow/blob/9ec9eb79a0cc845d86e7380c73269d2ee1d3c210/airflow/serialization/serialized_objects.py#L963).
On the other hand, the [outlet
part](https://github.com/apache/airflow/blob/9ec9eb79a0cc845d86e7380c73269d2ee1d3c210/airflow/serialization/serialized_objects.py#L946-L955)
did not deduplicate.
I think what you suggest is better. (let the API layer do the deduplication
job, I'll probably do it
[here](https://github.com/apache/airflow/blob/9ec9eb79a0cc845d86e7380c73269d2ee1d3c210/airflow/www/views.py#L3498)),
but would like to check whether changing this behavior (which affect
serialized DAG) is actually ok. Thanks!
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