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[PR #31139] fix(log): fix load more messages infinite scroll issues #33109

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opened 2026-02-21 20:52:40 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:52:40 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/31139

State: closed
Merged: No

  • Fix pagination cursor: Correctly identify the oldest message ID for pagination (first_id) to fetch previous history instead of repeatedly fetching recent messages.
  • Improve scroll detection: Relax container validity check to bind scroll events even if content doesn't initially overflow, ensuring "load more" works on shorter lists.
  • Update effect dependencies: Add threadChatItems.length to useEffect deps to ensure the scroll listener re-binds correctly after the list renders.

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

fixes #30259

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Before After
... ...

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 make lint and make type-check (backend) and cd web && npx lint-staged (frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/31139 **State:** closed **Merged:** No --- - **Fix pagination cursor**: Correctly identify the oldest message ID for pagination (`first_id`) to fetch previous history instead of repeatedly fetching recent messages. - **Improve scroll detection**: Relax container validity check to bind scroll events even if content doesn't initially overflow, ensuring "load more" works on shorter lists. - **Update effect dependencies**: Add `threadChatItems.length` to `useEffect` deps to ensure the scroll listener re-binds correctly after the list renders. > [!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 <!-- Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change. --> fixes #30259 ## 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 `make lint` and `make type-check` (backend) and `cd web && npx lint-staged` (frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:52:40 -05:00
yindo closed this issue 2026-02-21 20:52:40 -05:00
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Reference: langgenius/dify#33109
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