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https://issues.apache.org/jira/browse/AIRFLOW-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16005695#comment-16005695
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Nicholaus E Halecky commented on AIRFLOW-637:
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Hi [~davidvtaylor], I was interested to know if there has been any progress on
this issue? If not, I'm interested in submitting a PR with a fix! Can we get a
maintainer to comment with any pointers? Thank you!
> Operators in Subdags don't have their associated DagRun in the context
> ----------------------------------------------------------------------
>
> Key: AIRFLOW-637
> URL: https://issues.apache.org/jira/browse/AIRFLOW-637
> Project: Apache Airflow
> Issue Type: Bug
> Components: DagRun, operators, subdag
> Reporter: Taylor Murphy
> Priority: Minor
>
> Currently in models.get_template_context we have:
> {code}
> run_id = ''
> dag_run = None
> if hasattr(task, 'dag'):
> if task.dag.params:
> params.update(task.dag.params)
> dag_run = (
> session.query(DagRun)
> .filter_by(
> dag_id=task.dag.dag_id,
> execution_date=self.execution_date)
> .first()
> )
> run_id = dag_run.run_id if dag_run else None
> session.expunge_all()
> session.commit()
> {code}
> Since subdags do not have associated DagRuns for their dag_id, the context
> will not contain the dagrun or run_id associated with the subdag, even though
> it exists associated with the parent dag.
> If we change this code to up the DagRun based on the dag_id of the parent
> dag, we can set these values.
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