BaseMessageConverter

class langchain_community.chat_message_histories.sql.BaseMessageConverter

Convert BaseMessage to the SQLAlchemy model.

Methods

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.

abstractmethod from_sql_model(

sql_message: Any,

) → BaseMessage

Convert a SQLAlchemy model to a BaseMessage instance.

Parameters:

sql_message (Any)

Return type:

BaseMessage

abstractmethod get_sql_model_class() → Any

Get the SQLAlchemy model class.

Return type:

Any

abstractmethod to_sql_model(

message: BaseMessage,

session_id: str,

) → Any

Convert a BaseMessage instance to a SQLAlchemy model.

Parameters:

• message (BaseMessage)

• session_id (str)

Return type:

Any