open-webui/backend/apps/web/models/chats.py

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2023-12-26 05:44:28 +00:00
from pydantic import BaseModel
from typing import List, Union, Optional
from peewee import *
from playhouse.shortcuts import model_to_dict
import json
import uuid
import time
from apps.web.internal.db import DB
####################
# Chat DB Schema
####################
class Chat(Model):
id = CharField(unique=True)
user_id: CharField()
title = CharField()
chat = TextField() # Save Chat JSON as Text
timestamp = DateField()
class Meta:
database = DB
class ChatModel(BaseModel):
id: str
user_id: str
title: str
chat: dict
timestamp: int # timestamp in epoch
####################
# Forms
####################
class ChatForm(BaseModel):
chat: dict
class ChatUpdateForm(ChatForm):
id: str
class ChatTitleIdResponse(BaseModel):
id: str
title: str
class ChatTable:
def __init__(self, db):
self.db = db
db.create_tables([Chat])
def insert_new_chat(self, user_id: str, form_data: ChatForm) -> Optional[ChatModel]:
id = str(uuid.uuid4())
chat = ChatModel(
**{
"id": id,
"user_id": user_id,
"title": form_data.chat["title"],
"chat": json.dump(form_data.chat),
"timestamp": int(time.time()),
}
)
result = Chat.create(**chat.model_dump())
return chat if result else None
def update_chat_by_id(self, id: str, chat: dict) -> Optional[ChatModel]:
try:
query = Chat.update(chat=json.dump(chat)).where(Chat.id == id)
query.execute()
chat = Chat.get(Chat.id == id)
return ChatModel(**model_to_dict(chat))
except:
return None
def get_chat_lists_by_user_id(
self, user_id: str, skip: int = 0, limit: int = 50
) -> List[ChatModel]:
return [
ChatModel(**model_to_dict(chat))
for chat in Chat.select(Chat.user_id == user_id).limit(limit).offset(skip)
]
def get_chat_by_id_and_user_id(self, id: str, user_id: str) -> Optional[ChatModel]:
try:
chat = Chat.get(Chat.id == id, Chat.user_id == user_id)
return ChatModel(**model_to_dict(chat))
except:
return None
def get_chats(self, skip: int = 0, limit: int = 50) -> List[ChatModel]:
return [
ChatModel(**model_to_dict(chat))
for chat in Chat.select().limit(limit).offset(skip)
]
Chats = ChatTable(DB)