surabathini commented on code in PR #28097:
URL: https://github.com/apache/airflow/pull/28097#discussion_r1046904361
##########
airflow/sensors/external_task.py:
##########
@@ -140,21 +140,30 @@ def __init__(
f"`{self.allowed_states}` and failed states
`{self.failed_states}`"
)
- if external_task_id is not None and external_task_ids is not None:
+ if external_task_id and external_task_ids:
raise ValueError(
"Only one of `external_task_id` or `external_task_ids` may "
- "be provided to ExternalTaskSensor; not both."
+ "be provided to ExternalTaskSensor; "
+ "Use external_task_id or external_task_ids or
external_task_group_id."
)
- if external_task_id is not None:
- external_task_ids = [external_task_id]
+ if external_task_group_id and external_task_id:
+ raise ValueError(
+ "Only one of `external_task_group_id` or `external_task_id`
may "
+ "be provided to ExternalTaskSensor; "
+ "Use external_task_id or external_task_ids or
external_task_group_id."
+ )
if external_task_group_id and external_task_ids:
raise ValueError(
- "Values for `external_task_group_id` and `external_task_id` or
`external_task_ids` "
- "can't be set at the same time"
+ "Only one of `external_task_group_id` or `external_task_ids`
may "
+ "be provided to ExternalTaskSensor; "
+ "Use external_task_id or external_task_ids or
external_task_group_id."
)
Review Comment:
Thanks for the review, added the above code to give the explicit error
message between external_task_id and external_task_ids.
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