bbovenzi commented on a change in pull request #22314:
URL: https://github.com/apache/airflow/pull/22314#discussion_r828232501
##########
File path: airflow/api_connexion/endpoints/task_instance_endpoint.py
##########
@@ -296,10 +298,49 @@ def get_task_instances_batch(session: Session =
NEW_SESSION) -> APIResponse:
ti_query = base_query.options(joinedload(TI.rendered_task_instance_fields))
task_instances = ti_query.all()
- return task_instance_collection_schema.dump(
+ results = task_instance_collection_schema.dump(
TaskInstanceCollection(task_instances=task_instances,
total_entries=total_entries)
)
+ if "summarize_mapped" in body and body["summarize_mapped"]:
+ dag_run_ids = [ti["dag_run_id"] for ti in results["task_instances"]]
+ mapped_ti_query = session.query(TI).join(TI.dag_run)
+ mapped_ti_query = _apply_array_filter(mapped_ti_query, key=TI.run_id,
values=dag_run_ids)
+ mapped_ti_query = mapped_ti_query.filter(TI.map_index != -1)
+ # FIXME without SLA block, this error when rendering:
+ # TypeError: 'TaskInstance' object is not subscriptable
+ mapped_ti_query = mapped_ti_query.join(
+ SlaMiss,
+ and_(
+ SlaMiss.dag_id == TI.dag_id,
+ SlaMiss.task_id == TI.task_id,
+ SlaMiss.execution_date == DR.execution_date,
+ ),
+ isouter=True,
+ ).add_entity(SlaMiss)
+ mapped_ti_query =
mapped_ti_query.options(joinedload(TI.rendered_task_instance_fields))
+ mapped_task_instances = mapped_ti_query.all()
+ mapped_summaries = task_instance_summary_collection_schema.dump(
+ TaskInstanceCollection(task_instances=mapped_task_instances,
total_entries=1)
+ )
+
+ by_dag_run_id = {}
+ for mapped_ti in mapped_summaries["task_instances"]:
+ dag_run_id = mapped_ti["dag_run_id"]
+ try:
+ by_dag_run_id[dag_run_id].append(mapped_ti)
+ except:
+ by_dag_run_id[dag_run_id] = [
+ mapped_ti,
+ ]
+
+ for ti in results["task_instances"]:
+ dag_run_id = ti["dag_run_id"]
+ if dag_run_id in by_dag_run_id:
+ ti["mapped_tasks"] = by_dag_run_id[dag_run_id]
Review comment:
Let's have the list of `mapped_tasks` be a separate endpoint with which
we can paginate with `limit` and `offset` params (and possibly, search).
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