dstandish commented on a change in pull request #5372: [AIRFLOW-3057] add
prev_*_date_success to template context
URL: https://github.com/apache/airflow/pull/5372#discussion_r291069964
##########
File path: airflow/models/taskinstance.py
##########
@@ -528,25 +532,43 @@ def _get_previous_ti(self, session=None):
if not previous_scheduled_date:
return None
- return TaskInstance(task=self.task,
- execution_date=previous_scheduled_date)
+ return TaskInstance(task=self.task,
execution_date=previous_scheduled_date)
dr.dag = dag
- if dag.catchup:
- last_dagrun = dr.get_previous_scheduled_dagrun(session=session)
+ if dag.catchup is False or state is not None or
dag.schedule_interval is None:
Review comment:
Yeah I will add comment. I don't like it but it's only because for whatever
reason current state is to use `get_previous_scheduled_dagrun` when
`dag.catchup=True`. `get_previous_scheduled_dagrun` is a little more efficient
because it just gets one row instead of order by limit 1. But when we are
filtering by state we don't care about schedule and same when there _is_ no
schedule.
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