PNL0 commented on code in PR #47557:
URL: https://github.com/apache/airflow/pull/47557#discussion_r1989016938


##########
airflow/api_fastapi/core_api/routes/public/dags.py:
##########
@@ -235,6 +236,23 @@ def patch_dag(
 
     data = patch_body.model_dump(include=fields_to_update, by_alias=True)
 
+    is_paused = data.get("is_paused")
+    if is_paused is not None:
+        active_dag_runs = session.scalars(
+            select(DagRun).filter(
+                DagRun.dag_id == dag_id, 
DagRun.state.in_([DagRunState.RUNNING, DagRunState.QUEUED])
+            )
+        ).all()
+
+        for dag_run in active_dag_runs:
+            if is_paused:

Review Comment:
   > I think there is a problem here. It cannot get into else here since the 
parent `if` is already ensuring it isn't `None`.
   
   My idea, with the if-else clause, is to cover the cases when the user pauses 
the dag (is_paused = true) and unpauses the dag (is_paused = false, so the else 
clause). 
   
   Maybe this became confusing because of the parent if-clause (to check the 
None), but has I said in the other comment, I think that I can safely remove it.



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