antonio-mello-ai opened a new pull request, #64384:
URL: https://github.com/apache/airflow/pull/64384
Fix TypeError in `GET /dags/{dag_id}/tasks` when sorting by a field whose
values
can be `None` (e.g. `start_date` on unscheduled DAGs). Previously this
caused a
500 Internal Server Error because Python 3 cannot compare `None` with `None`.
**Changes:**
- Add `_SORTABLE_TASK_FIELDS` whitelist to validate `order_by` upfront,
returning
400 for invalid fields (consistent with `SortParam` error format used in
other endpoints)
- Handle `None` values in the sort key so nullable fields sort correctly
(tasks with `None` values are placed at the end)
closes: #63927
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes — Claude (Anthropic)
Generated-by: Claude following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
---
* Read the **[Pull Request
Guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#pull-request-guidelines)**
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