`langchain_community.chat_message_histories.sql`.BaseMessageConverter¶

class langchain_community.chat_message_histories.sql.BaseMessageConverter[source]¶

The class responsible for converting BaseMessage to your SQLAlchemy model.

Methods

`__init__`()
`from_sql_model`(sql_message)	Convert a SQLAlchemy model to a BaseMessage instance.
`get_sql_model_class`()	Get the SQLAlchemy model class.
`to_sql_model`(message, session_id)	Convert a BaseMessage instance to a SQLAlchemy model.

abstract from_sql_model(sql_message: Any) → BaseMessage[source]¶: Convert a SQLAlchemy model to a BaseMessage instance.

abstract get_sql_model_class() → Any[source]¶: Get the SQLAlchemy model class.

abstract to_sql_model(message: BaseMessage, session_id: str) → Any[source]¶: Convert a BaseMessage instance to a SQLAlchemy model.

Examples using BaseMessageConverter¶