[
https://issues.apache.org/jira/browse/AIRFLOW-54?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17068917#comment-17068917
]
Daniel Imberman commented on AIRFLOW-54:
----------------------------------------
moved to https://github.com/apache/airflow/issues/7906
> Special tags when referring to other tasks
> ------------------------------------------
>
> Key: AIRFLOW-54
> URL: https://issues.apache.org/jira/browse/AIRFLOW-54
> Project: Apache Airflow
> Issue Type: New Feature
> Components: hooks, operators
> Reporter: Adam Mustafa
> Assignee: Adam Mustafa
> Priority: Minor
>
> At the moment when you need to refer to other tasks, you either have to refer
> to them by name or search though a list of upstream objects.
> For example, in order to get the task_ids needed by xcom_pull for the
> upstream items, you need to do:
>
> ti.xcom_pull(task_ids=[task.task_id for task in self.upstream_list])[0]
> This issue suggests adding a keyword operator similar in form to those the
> schedule would use.
> Possible items might include:
> @upstream: Tasks directly upstream <--- *change this to @parent*
> @ancestor: Any task that is in the ancestor tree of this dag
> @sibling: other tasks stemming from the same upstream tasks
> @children: tasks from the children of this node
> Aside from providing more simple arguments, this also improves the
> readability of the functions.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
