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78 lines
3.4 KiB
Python

from __future__ import annotations
import time
import sqlalchemy
from sqlalchemy import select, update
from sqlalchemy.orm import mapped_column, relationship, Mapped
from api.model.base import BaseHelper, BaseModel
from api.model.toolkit_ui.conversation import ConversationModel
from service.database import DatabaseService
from service.event import EventService
class ConversationChunkModel(BaseModel):
__tablename__ = "chat_complete_conversation_chunk"
id: Mapped[int] = mapped_column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
conversation_id: Mapped[int] = mapped_column(
sqlalchemy.ForeignKey(ConversationModel.id, ondelete="CASCADE", onupdate="CASCADE"), index=True)
message_data: Mapped[list] = mapped_column(sqlalchemy.JSON, nullable=True)
tokens: Mapped[int] = mapped_column(sqlalchemy.Integer, default=0)
updated_at: Mapped[int] = mapped_column(sqlalchemy.BigInteger, index=True)
class ConversationChunkHelper(BaseHelper):
async def add(self, obj: ConversationChunkModel):
obj.updated_at = int(time.time())
self.session.add(obj)
await self.session.commit()
await self.session.refresh(obj)
return obj
async def update(self, obj: ConversationChunkModel):
obj.updated_at = int(time.time())
obj = await self.session.merge(obj)
await self.session.commit()
return obj
async def update_message_log(self, chunk_id: int, message_data: list, tokens: int):
stmt = update(ConversationChunkModel).where(ConversationChunkModel.id == chunk_id) \
.values(message_data=message_data, tokens=tokens, updated_at=int(time.time()))
await self.session.execute(stmt)
await self.session.commit()
async def get_newest_chunk(self, conversation_id: int):
stmt = select(ConversationChunkModel) \
.where(ConversationChunkModel.conversation_id == conversation_id) \
.order_by(ConversationChunkModel.id.desc()) \
.limit(1)
return await self.session.scalar(stmt)
async def get_chunk_id_list(self, conversation_id: int):
stmt = select(ConversationChunkModel.id) \
.where(ConversationChunkModel.conversation_id == conversation_id).order_by(ConversationChunkModel.id.asc())
return await self.session.scalars(stmt)
async def find_by_id(self, id: int):
stmt = select(ConversationChunkModel).where(ConversationChunkModel.id == id)
return await self.session.scalar(stmt)
async def remove(self, id: int | list[int]):
if isinstance(id, list):
stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.id.in_(id))
else:
stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.id == id)
await self.session.execute(stmt)
await self.session.commit()
async def remove_by_conversation_ids(self, ids: list[int]):
stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.conversation_id.in_(ids))
await self.session.execute(stmt)
await self.session.commit()
async def on_conversation_removed(event):
if "ids" in event:
conversation_ids = event["ids"]
async with ConversationChunkHelper(event["dbs"]) as chunk_helper:
await chunk_helper.remove_by_conversation_ids(conversation_ids)
EventService.create().add_listener("conversation/removed", on_conversation_removed)