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[PR #28249] fix(api): SegmentType.is_valid() raises AssertionError for SegmentType.GROUP #31994

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opened 2026-02-21 20:50:33 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:50:33 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/28249

State: closed
Merged: Yes

Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #<issue number>.

Summary

fix #28172

The issue was NOT that Array[File] was being treated as SegmentGroup. Rather, somewhere in the iteration workflow processing, SegmentType.GROUP validation was being called independently (perhaps during type inference or variable processing), and since GROUP wasn't handled in the is_valid() method, it hit the unreachable statement.

The fix ensures that if/when SegmentType.GROUP.is_valid() gets called during the workflow, it will return a proper boolean result instead of raising the AssertionError.

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... ...

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/28249 **State:** closed **Merged:** Yes --- > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: `Fixes #<issue number>`. ## Summary fix #28172 The issue was NOT that Array[File] was being treated as SegmentGroup. Rather, somewhere in the iteration workflow processing, SegmentType.GROUP validation was being called independently (perhaps during type inference or variable processing), and since GROUP wasn't handled in the is_valid() method, it hit the unreachable statement. The fix ensures that if/when SegmentType.GROUP.is_valid() gets called during the workflow, it will return a proper boolean result instead of raising the AssertionError. ## Screenshots | Before | After | |--------|-------| | ... | ... | ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:50:33 -05:00
yindo closed this issue 2026-02-21 20:50:33 -05:00
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Reference: langgenius/dify#31994
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