[BUG] 刷新网页，历史对话全部消失

[dapsjj]

Langchain-Chatchat版本0.3.1
python版本3.11
使用pip 安装部署
为什么启动项目后进行对话，再刷新网页，之前的对话的历史记录就全部没了？

[dosubot]

Hey @dapsjj, I'm here to help you with any issues you're facing in Langchain-Chatchat. I can assist with bug fixes, answering questions, and even guide you on how to contribute. Let's work together to resolve this issue!

I found a similar open issue titled "知识库对话bug" on the Langchain-Chatchat repository, but no solution was found in the comments ^[1].

Regarding your issue, Langchain-Chatchat handles conversation history using a ConversationBufferDBMemory when a conversation_id is provided and history_len is greater than 0. This setup allows it to retrieve historical messages from a database. If the web page is refreshed and the conversation_id is maintained, the conversation history can be retrieved from the database. However, if the conversation_id is not preserved, the conversation history would not be automatically maintained unless it is explicitly provided again ^[2][3].

Additionally, session state management is used to preserve conversation settings and history across page refreshes. Functions like save_session and restore_session help maintain the necessary context and settings ^[3].

To continue talking to Dosu, mention @dosu.

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