python runtime_error ai_generated true

sqlalchemy.exc.InvalidRequestError: 会话处于'committed'状态；此事务中无法再发出SQL。

sqlalchemy.exc.InvalidRequestError: This session is in 'committed' state; no further SQL can be emitted within this transaction.

ID: python/flask-sqlalchemy-session-not-removed

其他格式: JSON · Markdown 中文 · English
80%修复率
85%置信度
0证据数
2025-02-18首次发现

版本兼容性

版本状态引入弃用备注
2.x active — — —
3.x active — — —

根因分析

在请求中调用db.session.commit()后继续使用该会话，但未开启新事务。

English

Calling db.session.commit() inside a request then continuing to use the session without a new transaction.

generic

解决方案

  1. 90% 成功率 
    with db.session.begin():\n    db.session.add(obj)
  2. 93% 成功率 
    def view():\n    db.session.add(x)\n    db.session.commit()\n    return 'ok'

无效尝试

常见但无效的做法:

  1. 70% 失败

    Rollback discards pending changes and does not re-open a usable transaction for the same objects.

  2. 60% 失败

    Keeps attributes but the session is still in committed state for new queries.