Fix/Update Qdrant: set field_schema to KEYWORD & add encoding="utf-8" for file opening

[richedperson1]

This PR introduces two improvements:

1. In the Qdrant provider, the creation of the payload index for the "project_id" field has been updated to explicitly set the field schema using models.PayloadSchemaType.KEYWORD. This change ensures that the data type is correctly interpreted by Qdrant, leading to more reliable indexing and search operations.

2. In the chart generation pipeline, the JSON file loading has been updated to enforce encoding="utf-8". This ensures consistent behavior when reading configuration files across various environments.

Both improvements are aimed at enhancing compatibility and reliability of the document

Summary by CodeRabbit

• Bug Fixes
  • Prevented encoding-related errors by explicitly loading chart schemas as UTF-8, improving cross-platform consistency when parsing Vega-Lite schemas.
• Chores
  • Aligned vector store payload indexing with official enum types for improved type safety and configuration robustness.

[coderabbitai]

Walkthrough

Whitespace-only edits to two binary file open statements in eval preparation; explicit UTF-8 encoding added when opening Vega-Lite schema JSON in two chart pipeline initializers; Qdrant payload index configured using models.PayloadSchemaType.KEYWORD with an added import. No public APIs or control flow changed.

Changes

Cohort / File(s)	Summary of Changes
Eval prep file open whitespace wren-ai-service/eval/preparation.py	Whitespace-only change in two binary file opens (e.g., with open(path, "rb") as f: → with open(path, "rb")as f:). No functional change; reading remains binary and parsed with orjson.
Vega‑Lite schema loading wren-ai-service/src/pipelines/generation/chart_adjustment.py, wren-ai-service/src/pipelines/generation/chart_generation.py	Open Vega‑Lite schema JSON with explicit encoding="utf-8" in initializers; schema loading and subsequent logic unchanged.
Qdrant payload index type wren-ai-service/src/providers/document_store/qdrant.py	Added from qdrant_client.http import models and use models.PayloadSchemaType.KEYWORD instead of the string "keyword" for field_schema.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Suggested labels

wren-ai-service

Suggested reviewers

• yichieh-lu
• paopa

Poem

I nibbled bytes by lantern light,
Ensured UTF‑8 would read them right.
Swapped a string for enum delight,
Payloads indexed, tidy and tight.
A rabbit hops — the code feels light! 🐇

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📥 Commits

Reviewing files that changed from the base of the PR and between 2be1f65 and c10fed5.

📒 Files selected for processing (1)

• wren-ai-service/eval/preparation.py (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• wren-ai-service/eval/preparation.py

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[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (2)

wren-ai-service/src/pipelines/generation/chart_generation.py (1)

141-141: UTF-8 read is good; tiny PEP8 nit on spacing

Style nit: add a space after the comma before encoding for readability.

-with open("src/pipelines/generation/utils/vega-lite-schema-v5.json", "r",encoding="utf-8") as f:
+with open("src/pipelines/generation/utils/vega-lite-schema-v5.json", "r", encoding="utf-8") as f:

wren-ai-service/src/pipelines/generation/chart_adjustment.py (1)

168-168: UTF-8 read looks good; minor spacing nit

Same spacing nit as the generation pipeline.

-with open("src/pipelines/generation/utils/vega-lite-schema-v5.json", "r",encoding="utf-8") as f:
+with open("src/pipelines/generation/utils/vega-lite-schema-v5.json", "r", encoding="utf-8") as f:

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

💡 Knowledge Base configuration:

• MCP integration is disabled by default for public repositories
• Jira integration is disabled by default for public repositories
• Linear integration is disabled by default for public repositories

You can enable these sources in your CodeRabbit configuration.

📥 Commits

Reviewing files that changed from the base of the PR and between d321f87 and 2be1f65.

📒 Files selected for processing (4)

• wren-ai-service/eval/preparation.py (2 hunks)
• wren-ai-service/src/pipelines/generation/chart_adjustment.py (1 hunks)
• wren-ai-service/src/pipelines/generation/chart_generation.py (1 hunks)
• wren-ai-service/src/providers/document_store/qdrant.py (2 hunks)

🔇 Additional comments (1)

wren-ai-service/src/providers/document_store/qdrant.py (1)

4-4: Reuse existing rest alias for PayloadSchemaType; drop models import

Replace models.PayloadSchemaType.KEYWORD with rest.PayloadSchemaType.KEYWORD and remove the from qdrant_client.http import models import (pinned qdrant-client 1.11.0 already supports PayloadSchemaType.KEYWORD).

[cyyeh]

@richedperson1 it seems we already provide "keyword" as PayloadSchemaType?