langgenius/dify
1
0
Fork 0
mirror of https://github.com/langgenius/dify.git synced 2026-07-23 13:05:55 -04:00
Code Issues 775 Packages Projects Releases 10 Wiki Activity

[PR #23590] fix: empty arrays should convert to empty string in LLM prompts #30314

New Issue
Closed
opened 2026-02-21 20:47:15 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:47:15 -05:00
Owner
Copy Link
Copy Source

Original Pull Request: https://github.com/langgenius/dify/pull/23590

State: closed
Merged: Yes

Summary

  • Fixed empty array variables displaying as [] in LLM prompts
  • Empty arrays now correctly convert to empty strings

Changes

  • Override text property in ArraySegment class to return empty string for empty arrays
  • Update ArrayStringSegment.text to return empty string instead of json.dumps([]) for empty arrays

Testing

Tested all array segment types to ensure:

  • Empty arrays convert to empty strings
  • Non-empty arrays continue to work correctly
  • Template conversion with {{#sys.files#}} produces clean output

Related Issues

Fixes #23589

Example

Before:

Template: "Your files: {{#sys.files#}}"
Result: "Your files: []"

After:

Template: "Your files: {{#sys.files#}}"  
Result: "Your files: "
**Original Pull Request:** https://github.com/langgenius/dify/pull/23590 **State:** closed **Merged:** Yes --- ## Summary - Fixed empty array variables displaying as `[]` in LLM prompts - Empty arrays now correctly convert to empty strings ## Changes - Override `text` property in `ArraySegment` class to return empty string for empty arrays - Update `ArrayStringSegment.text` to return empty string instead of `json.dumps([])` for empty arrays ## Testing Tested all array segment types to ensure: - Empty arrays convert to empty strings - Non-empty arrays continue to work correctly - Template conversion with `{{#sys.files#}}` produces clean output ## Related Issues Fixes #23589 ## Example **Before:** ``` Template: "Your files: {{#sys.files#}}" Result: "Your files: []" ``` **After:** ``` Template: "Your files: {{#sys.files#}}" Result: "Your files: " ```
yindo added the pull-request label 2026-02-21 20:47:15 -05:00
yindo closed this issue 2026-02-21 20:47:15 -05:00
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
Knowledge Pipeline
Proposal
WIP
cloud
dependencies
feat:webapp
good first issue
outdated
performance
pull-request
Mirrored from GitHub Pull Request
 python:uv
refactor
size:L
stale
status: accepting prs
status: blocked
status: in discussion
stt & tts
vulnerablity
web
wont-fix
🌊 feat:workflow
🌚 invalid
🐞 bug
👻 feat:rag
💪 enhancement
📚 documentation
🔨 feat:tools
🙋‍♂️ question
🙏 help wanted
🤔 cant-reproduce
🤖 feat:agent
No Label pull-request
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: langgenius/dify#30314
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?