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fix: 会话落库/加载缺 app context——后台线程 db 操作必须包 _flask_app.app_context()（历史加载与完成写回两处），否则静默失败（消息不落库、标题不生成）

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butubb
2026-09-06 15:14:30 +08:00
parent a77635c925
commit caa646e89c
1 changed files with 14 additions and 10 deletions
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web/agent_api.py
+6 -2
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@@ -847,6 +847,8 @@ def _agent_thread(run_id, prompt, serial, cfg):
# 历史来源：绑定了会话 → 从会话读（多轮上下文延续，DeepSeek 式）； # 历史来源：绑定了会话 → 从会话读（多轮上下文延续，DeepSeek 式）；
# 无会话（CLI/兼容）→ 用运行态 history # 无会话（CLI/兼容）→ 用运行态 history
if conv_id: if conv_id:
# 后台线程需自行推 app context（与 _find_experiences 同思路）
with _flask_app.app_context():
msgs = _conv_msgs(conv_id) msgs = _conv_msgs(conv_id)
history = [{"role": m.get("role"), "content": m.get("content", "")[:4000]} history = [{"role": m.get("role"), "content": m.get("content", "")[:4000]}
for m in (msgs or []) if m.get("role") in ("user", "assistant")] for m in (msgs or []) if m.get("role") in ("user", "assistant")]
@@ -886,9 +888,11 @@ def _agent_thread(run_id, prompt, serial, cfg):
hist.append({"role": "user", "content": prompt[:2000]}) hist.append({"role": "user", "content": prompt[:2000]})
hist.append({"role": "assistant", "content": (answer or "")[:4000]}) hist.append({"role": "assistant", "content": (answer or "")[:4000]})
_run["history"] = hist[-24:] _run["history"] = hist[-24:]
# 会话落库：本轮追加写回（新会话自动用首条消息作标题） # 会话落库：本轮追加写回（新会话自动用首条消息作标题）。
if conv_id: # 后台线程 db 访问需 app context。
if conv_id and _flask_app is not None:
try: try:
with _flask_app.app_context():
saved = list(_run["history"]) saved = list(_run["history"])
title = None title = None
if not db.session.execute(db.text( if not db.session.execute(db.text(