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Posted to commits@airflow.apache.org by "Beau Barker (JIRA)" <ji...@apache.org> on 2017/12/22 22:08:00 UTC
[jira] [Created] (AIRFLOW-1950) Make xcom_pull's task_ids parameter
optional
Beau Barker created AIRFLOW-1950:
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Summary: Make xcom_pull's task_ids parameter optional
Key: AIRFLOW-1950
URL: https://issues.apache.org/jira/browse/AIRFLOW-1950
Project: Apache Airflow
Issue Type: Improvement
Components: models
Affects Versions: Airflow 1.8, Airflow 1.7.0
Reporter: Beau Barker
Assignee: Beau Barker
Priority: Minor
The xcom_pull methods require a {{task_ids}} parameter to specify which task pushed the value.
However you can pass None to bypass this filter, which says "give me the process_id value, regardless of which task pushed it".
{{ti.xcom_pull(task_ids=None, key='process_id')}}
Since task_ids is optional, we should make it an optional parameter.
{{ti.xcom_pull(key='process_id')}}
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