mirror of
https://github.com/bytedance/deer-flow.git
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rayhpeng
439c10d6f2
Following the rename/delete bug fix in PR1, migrate the remaining direct LangGraph Store reads/writes in the threads router and services to the ThreadMetaStore abstraction so that the sqlite and memory backends behave identically and the legacy dual-write paths can be removed. Migrated endpoints (threads.py): - create_thread: idempotency check + write now use thread_meta_repo.get/create instead of dual-writing the LangGraph Store and the SQL row. - get_thread: reads from thread_meta_repo.get; the checkpoint-only fallback for legacy threads is preserved. - patch_thread: replaced _store_get/_store_put with thread_meta_repo.update_metadata. - delete_thread_data: dropped the legacy store.adelete; thread_meta_repo.delete already covers it. Removed dead code (services.py): - _upsert_thread_in_store — redundant with the immediately following thread_meta_repo.create() call. - _sync_thread_title_after_run — worker.py's finally block already syncs the title via thread_meta_repo.update_display_name() after each run. Removed dead code (threads.py): - _store_get / _store_put / _store_upsert helpers (no remaining callers). - THREADS_NS constant. - get_store import (router no longer touches the LangGraph Store directly). New abstract method: - ThreadMetaStore.update_metadata(thread_id, metadata) merges metadata into the thread's metadata field. Implemented in both ThreadMetaRepository (SQL, read-modify-write inside one session) and MemoryThreadMetaStore. Three new unit tests cover merge / empty / nonexistent behaviour. Net change: -134 lines. Full test suite: 1693 passed, 14 skipped. Verified end-to-end with curl in gateway mode against sqlite backend (create / patch / get / rename / search / delete). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
61 lines
1.5 KiB
Python
61 lines
1.5 KiB
Python
"""Abstract interface for thread metadata storage.
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Implementations:
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- ThreadMetaRepository: SQL-backed (sqlite / postgres via SQLAlchemy)
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- MemoryThreadMetaStore: wraps LangGraph BaseStore (memory mode)
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"""
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from __future__ import annotations
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import abc
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class ThreadMetaStore(abc.ABC):
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@abc.abstractmethod
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async def create(
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self,
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thread_id: str,
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*,
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assistant_id: str | None = None,
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owner_id: str | None = None,
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display_name: str | None = None,
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metadata: dict | None = None,
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) -> dict:
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pass
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@abc.abstractmethod
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async def get(self, thread_id: str) -> dict | None:
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pass
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@abc.abstractmethod
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async def search(
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self,
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*,
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metadata: dict | None = None,
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status: str | None = None,
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limit: int = 100,
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offset: int = 0,
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) -> list[dict]:
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pass
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@abc.abstractmethod
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async def update_display_name(self, thread_id: str, display_name: str) -> None:
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pass
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@abc.abstractmethod
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async def update_status(self, thread_id: str, status: str) -> None:
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pass
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@abc.abstractmethod
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async def update_metadata(self, thread_id: str, metadata: dict) -> None:
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"""Merge ``metadata`` into the thread's metadata field.
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Existing keys are overwritten by the new values; keys absent from
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``metadata`` are preserved. No-op if the thread does not exist.
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"""
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pass
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@abc.abstractmethod
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async def delete(self, thread_id: str) -> None:
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pass
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