1e4694d fix: remove invalid expunge call on Pydantic FileModel
📊 Changes
1 file changed (+3 additions, -4 deletions)
View changed files
📝backend/open_webui/routers/retrieval.py (+3 -4)
📄 Description
fix: remove invalid expunge call on Pydantic FileModel Files.get_file_by_id() returns a Pydantic FileModel, not an SQLAlchemy ORM object. Calling db.expunge() on a Pydantic model fails with UnmappedInstanceError since it lacks _sa_instance_state. The expunge was also unnecessary because subsequent DB updates already use fresh sessions via get_db() context manager. Fixes#20925
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## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/20931
**Author:** [@Classic298](https://github.com/Classic298)
**Created:** 1/25/2026
**Status:** ✅ Merged
**Merged:** 1/26/2026
**Merged by:** [@tjbck](https://github.com/tjbck)
**Base:** `dev` ← **Head:** `fix-expunge`
---
### 📝 Commits (1)
- [`1e4694d`](https://github.com/open-webui/open-webui/commit/1e4694d119a641a192ff21e24183bb6d9df4f62b) fix: remove invalid expunge call on Pydantic FileModel
### 📊 Changes
**1 file changed** (+3 additions, -4 deletions)
<details>
<summary>View changed files</summary>
📝 `backend/open_webui/routers/retrieval.py` (+3 -4)
</details>
### 📄 Description
fix: remove invalid expunge call on Pydantic FileModel Files.get_file_by_id() returns a Pydantic FileModel, not an SQLAlchemy ORM object. Calling db.expunge() on a Pydantic model fails with UnmappedInstanceError since it lacks _sa_instance_state. The expunge was also unnecessary because subsequent DB updates already use fresh sessions via get_db() context manager.
Fixes #20925
### Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms.
> [!NOTE]
> Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in.
---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
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📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/20931
Author: @Classic298
Created: 1/25/2026
Status: ✅ Merged
Merged: 1/26/2026
Merged by: @tjbck
Base:
dev← Head:fix-expunge📝 Commits (1)
1e4694dfix: remove invalid expunge call on Pydantic FileModel📊 Changes
1 file changed (+3 additions, -4 deletions)
View changed files
📝
backend/open_webui/routers/retrieval.py(+3 -4)📄 Description
fix: remove invalid expunge call on Pydantic FileModel Files.get_file_by_id() returns a Pydantic FileModel, not an SQLAlchemy ORM object. Calling db.expunge() on a Pydantic model fails with UnmappedInstanceError since it lacks _sa_instance_state. The expunge was also unnecessary because subsequent DB updates already use fresh sessions via get_db() context manager.
Fixes #20925
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.