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1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 | import logging
import json
import time
import uuid
from typing import Optional
from sqlalchemy.orm import Session
from open_webui.internal.db import Base, JSONField, get_db, get_db_context
from open_webui.models.tags import TagModel, Tag, Tags
from open_webui.models.folders import Folders
from open_webui.models.chat_messages import ChatMessage, ChatMessages
from open_webui.utils.misc import sanitize_data_for_db, sanitize_text_for_db
from pydantic import BaseModel, ConfigDict
from sqlalchemy import (
BigInteger,
Boolean,
Column,
ForeignKey,
String,
Text,
JSON,
Index,
UniqueConstraint,
)
from sqlalchemy import or_, func, select, and_, text
from sqlalchemy.sql import exists
from sqlalchemy.sql.expression import bindparam
####################
# Chat DB Schema
####################
log = logging.getLogger(__name__)
class Chat(Base):
__tablename__ = "chat"
id = Column(String, primary_key=True, unique=True)
user_id = Column(String)
title = Column(Text)
chat = Column(JSON)
created_at = Column(BigInteger)
updated_at = Column(BigInteger)
share_id = Column(Text, unique=True, nullable=True)
archived = Column(Boolean, default=False)
pinned = Column(Boolean, default=False, nullable=True)
meta = Column(JSON, server_default="{}")
folder_id = Column(Text, nullable=True)
__table_args__ = (
# Performance indexes for common queries
# WHERE folder_id = ...
Index("folder_id_idx", "folder_id"),
# WHERE user_id = ... AND pinned = ...
Index("user_id_pinned_idx", "user_id", "pinned"),
# WHERE user_id = ... AND archived = ...
Index("user_id_archived_idx", "user_id", "archived"),
# WHERE user_id = ... ORDER BY updated_at DESC
Index("updated_at_user_id_idx", "updated_at", "user_id"),
# WHERE folder_id = ... AND user_id = ...
Index("folder_id_user_id_idx", "folder_id", "user_id"),
)
class ChatModel(BaseModel):
model_config = ConfigDict(from_attributes=True)
id: str
user_id: str
title: str
chat: dict
created_at: int # timestamp in epoch
updated_at: int # timestamp in epoch
share_id: Optional[str] = None
archived: bool = False
pinned: Optional[bool] = False
meta: dict = {}
folder_id: Optional[str] = None
class ChatFile(Base):
__tablename__ = "chat_file"
id = Column(Text, unique=True, primary_key=True)
user_id = Column(Text, nullable=False)
chat_id = Column(Text, ForeignKey("chat.id", ondelete="CASCADE"), nullable=False)
message_id = Column(Text, nullable=True)
file_id = Column(Text, ForeignKey("file.id", ondelete="CASCADE"), nullable=False)
created_at = Column(BigInteger, nullable=False)
updated_at = Column(BigInteger, nullable=False)
__table_args__ = (
UniqueConstraint("chat_id", "file_id", name="uq_chat_file_chat_file"),
)
class ChatFileModel(BaseModel):
id: str
user_id: str
chat_id: str
message_id: Optional[str] = None
file_id: str
created_at: int
updated_at: int
model_config = ConfigDict(from_attributes=True)
####################
# Forms
####################
class ChatForm(BaseModel):
chat: dict
folder_id: Optional[str] = None
class ChatImportForm(ChatForm):
meta: Optional[dict] = {}
pinned: Optional[bool] = False
created_at: Optional[int] = None
updated_at: Optional[int] = None
class ChatsImportForm(BaseModel):
chats: list[ChatImportForm]
class ChatTitleMessagesForm(BaseModel):
title: str
messages: list[dict]
class ChatTitleForm(BaseModel):
title: str
class ChatResponse(BaseModel):
id: str
user_id: str
title: str
chat: dict
updated_at: int # timestamp in epoch
created_at: int # timestamp in epoch
share_id: Optional[str] = None # id of the chat to be shared
archived: bool
pinned: Optional[bool] = False
meta: dict = {}
folder_id: Optional[str] = None
class ChatTitleIdResponse(BaseModel):
id: str
title: str
updated_at: int
created_at: int
class SharedChatResponse(BaseModel):
id: str
title: str
share_id: Optional[str] = None
updated_at: int
created_at: int
class ChatListResponse(BaseModel):
items: list[ChatModel]
total: int
class ChatUsageStatsResponse(BaseModel):
id: str # chat id
models: dict = {} # models used in the chat with their usage counts
message_count: int # number of messages in the chat
history_models: dict = {} # models used in the chat history with their usage counts
history_message_count: int # number of messages in the chat history
history_user_message_count: int # number of user messages in the chat history
history_assistant_message_count: (
int # number of assistant messages in the chat history
)
average_response_time: (
float # average response time of assistant messages in seconds
)
average_user_message_content_length: (
float # average length of user message contents
)
average_assistant_message_content_length: (
float # average length of assistant message contents
)
tags: list[str] = [] # tags associated with the chat
last_message_at: int # timestamp of the last message
updated_at: int
created_at: int
model_config = ConfigDict(extra="allow")
class ChatUsageStatsListResponse(BaseModel):
items: list[ChatUsageStatsResponse]
total: int
model_config = ConfigDict(extra="allow")
class MessageStats(BaseModel):
id: str
role: str
model: Optional[str] = None
content_length: int
token_count: Optional[int] = None
timestamp: Optional[int] = None
rating: Optional[int] = None # Derived from message.annotation.rating
tags: Optional[list[str]] = None # Derived from message.annotation.tags
class ChatHistoryStats(BaseModel):
messages: dict[str, MessageStats]
currentId: Optional[str] = None
class ChatBody(BaseModel):
history: ChatHistoryStats
class AggregateChatStats(BaseModel):
average_response_time: float
average_user_message_content_length: float
average_assistant_message_content_length: float
models: dict[str, int]
message_count: int
history_models: dict[str, int]
history_message_count: int
history_user_message_count: int
history_assistant_message_count: int
class ChatStatsExport(BaseModel):
id: str
user_id: str
created_at: int
updated_at: int
tags: list[str] = []
stats: AggregateChatStats
chat: ChatBody
class ChatTable:
def _clean_null_bytes(self, obj):
"""Recursively remove null bytes from strings in dict/list structures."""
return sanitize_data_for_db(obj)
def _sanitize_chat_row(self, chat_item):
"""
Clean a Chat SQLAlchemy model's title + chat JSON,
and return True if anything changed.
"""
changed = False
# Clean title
if chat_item.title:
cleaned = self._clean_null_bytes(chat_item.title)
if cleaned != chat_item.title:
chat_item.title = cleaned
changed = True
# Clean JSON
if chat_item.chat:
cleaned = self._clean_null_bytes(chat_item.chat)
if cleaned != chat_item.chat:
chat_item.chat = cleaned
changed = True
return changed
def insert_new_chat(
self, user_id: str, form_data: ChatForm, db: Optional[Session] = None
) -> Optional[ChatModel]:
with get_db_context(db) as db:
id = str(uuid.uuid4())
chat = ChatModel(
**{
"id": id,
"user_id": user_id,
"title": self._clean_null_bytes(
form_data.chat["title"]
if "title" in form_data.chat
else "New Chat"
),
"chat": self._clean_null_bytes(form_data.chat),
"folder_id": form_data.folder_id,
"created_at": int(time.time()),
"updated_at": int(time.time()),
}
)
chat_item = Chat(**chat.model_dump())
db.add(chat_item)
db.commit()
db.refresh(chat_item)
# Dual-write initial messages to chat_message table
try:
history = form_data.chat.get("history", {})
messages = history.get("messages", {})
for message_id, message in messages.items():
if isinstance(message, dict) and message.get("role"):
ChatMessages.upsert_message(
message_id=message_id,
chat_id=id,
user_id=user_id,
data=message,
)
except Exception as e:
log.warning(
f"Failed to write initial messages to chat_message table: {e}"
)
return ChatModel.model_validate(chat_item) if chat_item else None
def _chat_import_form_to_chat_model(
self, user_id: str, form_data: ChatImportForm
) -> ChatModel:
id = str(uuid.uuid4())
chat = ChatModel(
**{
"id": id,
"user_id": user_id,
"title": self._clean_null_bytes(
form_data.chat["title"] if "title" in form_data.chat else "New Chat"
),
"chat": self._clean_null_bytes(form_data.chat),
"meta": form_data.meta,
"pinned": form_data.pinned,
"folder_id": form_data.folder_id,
"created_at": (
form_data.created_at if form_data.created_at else int(time.time())
),
"updated_at": (
form_data.updated_at if form_data.updated_at else int(time.time())
),
}
)
return chat
def import_chats(
self,
user_id: str,
chat_import_forms: list[ChatImportForm],
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
chats = []
for form_data in chat_import_forms:
chat = self._chat_import_form_to_chat_model(user_id, form_data)
chats.append(Chat(**chat.model_dump()))
db.add_all(chats)
db.commit()
# Dual-write messages to chat_message table
try:
for form_data, chat_obj in zip(chat_import_forms, chats):
history = form_data.chat.get("history", {})
messages = history.get("messages", {})
for message_id, message in messages.items():
if isinstance(message, dict) and message.get("role"):
ChatMessages.upsert_message(
message_id=message_id,
chat_id=chat_obj.id,
user_id=user_id,
data=message,
)
except Exception as e:
log.warning(
f"Failed to write imported messages to chat_message table: {e}"
)
return [ChatModel.model_validate(chat) for chat in chats]
def update_chat_by_id(
self, id: str, chat: dict, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat_item = db.get(Chat, id)
chat_item.chat = self._clean_null_bytes(chat)
chat_item.title = (
self._clean_null_bytes(chat["title"])
if "title" in chat
else "New Chat"
)
chat_item.updated_at = int(time.time())
db.commit()
db.refresh(chat_item)
return ChatModel.model_validate(chat_item)
except Exception:
return None
def update_chat_title_by_id(self, id: str, title: str) -> Optional[ChatModel]:
chat = self.get_chat_by_id(id)
if chat is None:
return None
chat = chat.chat
chat["title"] = title
return self.update_chat_by_id(id, chat)
def update_chat_tags_by_id(
self, id: str, tags: list[str], user
) -> Optional[ChatModel]:
with get_db_context() as db:
chat = db.get(Chat, id)
if chat is None:
return None
old_tags = chat.meta.get("tags", [])
new_tags = [t for t in tags if t.replace(" ", "_").lower() != "none"]
new_tag_ids = [t.replace(" ", "_").lower() for t in new_tags]
# Single meta update
chat.meta = {**chat.meta, "tags": new_tag_ids}
db.commit()
db.refresh(chat)
# Batch-create any missing tag rows
Tags.ensure_tags_exist(new_tags, user.id, db=db)
# Clean up orphaned old tags in one query
removed = set(old_tags) - set(new_tag_ids)
if removed:
self.delete_orphan_tags_for_user(list(removed), user.id, db=db)
return ChatModel.model_validate(chat)
def get_chat_title_by_id(self, id: str) -> Optional[str]:
chat = self.get_chat_by_id(id)
if chat is None:
return None
return chat.chat.get("title", "New Chat")
def get_messages_map_by_chat_id(self, id: str) -> Optional[dict]:
chat = self.get_chat_by_id(id)
if chat is None:
return None
return chat.chat.get("history", {}).get("messages", {}) or {}
def get_message_by_id_and_message_id(
self, id: str, message_id: str
) -> Optional[dict]:
chat = self.get_chat_by_id(id)
if chat is None:
return None
return chat.chat.get("history", {}).get("messages", {}).get(message_id, {})
def upsert_message_to_chat_by_id_and_message_id(
self, id: str, message_id: str, message: dict
) -> Optional[ChatModel]:
chat = self.get_chat_by_id(id)
if chat is None:
return None
# Sanitize message content for null characters before upserting
if isinstance(message.get("content"), str):
message["content"] = sanitize_text_for_db(message["content"])
chat = chat.chat
history = chat.get("history", {})
if message_id in history.get("messages", {}):
history["messages"][message_id] = {
**history["messages"][message_id],
**message,
}
else:
history["messages"][message_id] = message
history["currentId"] = message_id
chat["history"] = history
# Dual-write to chat_message table
try:
ChatMessages.upsert_message(
message_id=message_id,
chat_id=id,
user_id=self.get_chat_by_id(id).user_id,
data=history["messages"][message_id],
)
except Exception as e:
log.warning(f"Failed to write to chat_message table: {e}")
return self.update_chat_by_id(id, chat)
def add_message_status_to_chat_by_id_and_message_id(
self, id: str, message_id: str, status: dict
) -> Optional[ChatModel]:
chat = self.get_chat_by_id(id)
if chat is None:
return None
chat = chat.chat
history = chat.get("history", {})
if message_id in history.get("messages", {}):
status_history = history["messages"][message_id].get("statusHistory", [])
status_history.append(status)
history["messages"][message_id]["statusHistory"] = status_history
chat["history"] = history
return self.update_chat_by_id(id, chat)
def add_message_files_by_id_and_message_id(
self, id: str, message_id: str, files: list[dict]
) -> list[dict]:
with get_db_context() as db:
chat = self.get_chat_by_id(id, db=db)
if chat is None:
return None
chat = chat.chat
history = chat.get("history", {})
message_files = []
if message_id in history.get("messages", {}):
message_files = history["messages"][message_id].get("files", [])
message_files = message_files + files
history["messages"][message_id]["files"] = message_files
chat["history"] = history
self.update_chat_by_id(id, chat, db=db)
return message_files
def insert_shared_chat_by_chat_id(
self, chat_id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
with get_db_context(db) as db:
# Get the existing chat to share
chat = db.get(Chat, chat_id)
# Check if chat exists
if not chat:
return None
# Check if the chat is already shared
if chat.share_id:
return self.get_chat_by_id_and_user_id(chat.share_id, "shared", db=db)
# Create a new chat with the same data, but with a new ID
shared_chat = ChatModel(
**{
"id": str(uuid.uuid4()),
"user_id": f"shared-{chat_id}",
"title": chat.title,
"chat": chat.chat,
"meta": chat.meta,
"pinned": chat.pinned,
"folder_id": chat.folder_id,
"created_at": chat.created_at,
"updated_at": int(time.time()),
}
)
shared_result = Chat(**shared_chat.model_dump())
db.add(shared_result)
db.commit()
db.refresh(shared_result)
# Update the original chat with the share_id
result = (
db.query(Chat)
.filter_by(id=chat_id)
.update({"share_id": shared_chat.id})
)
db.commit()
return shared_chat if (shared_result and result) else None
def update_shared_chat_by_chat_id(
self, chat_id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat = db.get(Chat, chat_id)
shared_chat = (
db.query(Chat).filter_by(user_id=f"shared-{chat_id}").first()
)
if shared_chat is None:
return self.insert_shared_chat_by_chat_id(chat_id, db=db)
shared_chat.title = chat.title
shared_chat.chat = chat.chat
shared_chat.meta = chat.meta
shared_chat.pinned = chat.pinned
shared_chat.folder_id = chat.folder_id
shared_chat.updated_at = int(time.time())
db.commit()
db.refresh(shared_chat)
return ChatModel.model_validate(shared_chat)
except Exception:
return None
def delete_shared_chat_by_chat_id(
self, chat_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
# Use subquery to delete chat_messages for shared chats
shared_chat_id_subquery = (
db.query(Chat.id).filter_by(user_id=f"shared-{chat_id}").subquery()
)
db.query(ChatMessage).filter(
ChatMessage.chat_id.in_(shared_chat_id_subquery)
).delete(synchronize_session=False)
db.query(Chat).filter_by(user_id=f"shared-{chat_id}").delete()
db.commit()
return True
except Exception:
return False
def unarchive_all_chats_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
db.query(Chat).filter_by(user_id=user_id).update({"archived": False})
db.commit()
return True
except Exception:
return False
def update_chat_share_id_by_id(
self, id: str, share_id: Optional[str], db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
chat.share_id = share_id
db.commit()
db.refresh(chat)
return ChatModel.model_validate(chat)
except Exception:
return None
def toggle_chat_pinned_by_id(
self, id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
chat.pinned = not chat.pinned
chat.updated_at = int(time.time())
db.commit()
db.refresh(chat)
return ChatModel.model_validate(chat)
except Exception:
return None
def toggle_chat_archive_by_id(
self, id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
chat.archived = not chat.archived
chat.folder_id = None
chat.updated_at = int(time.time())
db.commit()
db.refresh(chat)
return ChatModel.model_validate(chat)
except Exception:
return None
def archive_all_chats_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
db.query(Chat).filter_by(user_id=user_id).update({"archived": True})
db.commit()
return True
except Exception:
return False
def get_archived_chat_list_by_user_id(
self,
user_id: str,
filter: Optional[dict] = None,
skip: int = 0,
limit: int = 50,
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id, archived=True)
if filter:
query_key = filter.get("query")
if query_key:
query = query.filter(Chat.title.ilike(f"%{query_key}%"))
order_by = filter.get("order_by")
direction = filter.get("direction")
if order_by and direction:
if not getattr(Chat, order_by, None):
raise ValueError("Invalid order_by field")
if direction.lower() == "asc":
query = query.order_by(getattr(Chat, order_by).asc())
elif direction.lower() == "desc":
query = query.order_by(getattr(Chat, order_by).desc())
else:
raise ValueError("Invalid direction for ordering")
else:
query = query.order_by(Chat.updated_at.desc())
if skip:
query = query.offset(skip)
if limit:
query = query.limit(limit)
all_chats = query.all()
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_shared_chat_list_by_user_id(
self,
user_id: str,
filter: Optional[dict] = None,
skip: int = 0,
limit: int = 50,
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
query = (
db.query(Chat)
.filter_by(user_id=user_id)
.filter(Chat.share_id.isnot(None))
)
if filter:
query_key = filter.get("query")
if query_key:
query = query.filter(Chat.title.ilike(f"%{query_key}%"))
order_by = filter.get("order_by")
direction = filter.get("direction")
if order_by and direction:
if not getattr(Chat, order_by, None):
raise ValueError("Invalid order_by field")
if direction.lower() == "asc":
query = query.order_by(getattr(Chat, order_by).asc())
elif direction.lower() == "desc":
query = query.order_by(getattr(Chat, order_by).desc())
else:
raise ValueError("Invalid direction for ordering")
else:
query = query.order_by(Chat.updated_at.desc())
if skip:
query = query.offset(skip)
if limit:
query = query.limit(limit)
all_chats = query.all()
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chat_list_by_user_id(
self,
user_id: str,
include_archived: bool = False,
filter: Optional[dict] = None,
skip: int = 0,
limit: int = 50,
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id)
if not include_archived:
query = query.filter_by(archived=False)
if filter:
query_key = filter.get("query")
if query_key:
query = query.filter(Chat.title.ilike(f"%{query_key}%"))
order_by = filter.get("order_by")
direction = filter.get("direction")
if order_by and direction and getattr(Chat, order_by):
if direction.lower() == "asc":
query = query.order_by(getattr(Chat, order_by).asc())
elif direction.lower() == "desc":
query = query.order_by(getattr(Chat, order_by).desc())
else:
raise ValueError("Invalid direction for ordering")
else:
query = query.order_by(Chat.updated_at.desc())
if skip:
query = query.offset(skip)
if limit:
query = query.limit(limit)
all_chats = query.all()
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chat_title_id_list_by_user_id(
self,
user_id: str,
include_archived: bool = False,
include_folders: bool = False,
include_pinned: bool = False,
skip: Optional[int] = None,
limit: Optional[int] = None,
db: Optional[Session] = None,
) -> list[ChatTitleIdResponse]:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id)
if not include_folders:
query = query.filter_by(folder_id=None)
if not include_pinned:
query = query.filter(or_(Chat.pinned == False, Chat.pinned == None))
if not include_archived:
query = query.filter_by(archived=False)
query = query.order_by(Chat.updated_at.desc()).with_entities(
Chat.id, Chat.title, Chat.updated_at, Chat.created_at
)
if skip:
query = query.offset(skip)
if limit:
query = query.limit(limit)
all_chats = query.all()
# result has to be destructured from sqlalchemy `row` and mapped to a dict since the `ChatModel`is not the returned dataclass.
return [
ChatTitleIdResponse.model_validate(
{
"id": chat[0],
"title": chat[1],
"updated_at": chat[2],
"created_at": chat[3],
}
)
for chat in all_chats
]
def get_chat_list_by_chat_ids(
self,
chat_ids: list[str],
skip: int = 0,
limit: int = 50,
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
all_chats = (
db.query(Chat)
.filter(Chat.id.in_(chat_ids))
.filter_by(archived=False)
.order_by(Chat.updated_at.desc())
.all()
)
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chat_by_id(
self, id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat_item = db.get(Chat, id)
if chat_item is None:
return None
if self._sanitize_chat_row(chat_item):
db.commit()
db.refresh(chat_item)
return ChatModel.model_validate(chat_item)
except Exception:
return None
def get_chat_by_share_id(
self, id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
# it is possible that the shared link was deleted. hence,
# we check if the chat is still shared by checking if a chat with the share_id exists
chat = db.query(Chat).filter_by(share_id=id).first()
if chat:
return self.get_chat_by_id(id, db=db)
else:
return None
except Exception:
return None
def get_chat_by_id_and_user_id(
self, id: str, user_id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat = db.query(Chat).filter_by(id=id, user_id=user_id).first()
return ChatModel.model_validate(chat)
except Exception:
return None
def get_chats(
self, skip: int = 0, limit: int = 50, db: Optional[Session] = None
) -> list[ChatModel]:
with get_db_context(db) as db:
all_chats = (
db.query(Chat)
# .limit(limit).offset(skip)
.order_by(Chat.updated_at.desc())
)
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chats_by_user_id(
self,
user_id: str,
filter: Optional[dict] = None,
skip: Optional[int] = None,
limit: Optional[int] = None,
db: Optional[Session] = None,
) -> ChatListResponse:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id)
if filter:
if filter.get("updated_at"):
query = query.filter(Chat.updated_at > filter.get("updated_at"))
order_by = filter.get("order_by")
direction = filter.get("direction")
if order_by and direction:
if hasattr(Chat, order_by):
if direction.lower() == "asc":
query = query.order_by(getattr(Chat, order_by).asc())
elif direction.lower() == "desc":
query = query.order_by(getattr(Chat, order_by).desc())
else:
query = query.order_by(Chat.updated_at.desc())
else:
query = query.order_by(Chat.updated_at.desc())
total = query.count()
if skip is not None:
query = query.offset(skip)
if limit is not None:
query = query.limit(limit)
all_chats = query.all()
return ChatListResponse(
**{
"items": [ChatModel.model_validate(chat) for chat in all_chats],
"total": total,
}
)
def get_pinned_chats_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> list[ChatModel]:
with get_db_context(db) as db:
all_chats = (
db.query(Chat)
.filter_by(user_id=user_id, pinned=True, archived=False)
.order_by(Chat.updated_at.desc())
)
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_archived_chats_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> list[ChatModel]:
with get_db_context(db) as db:
all_chats = (
db.query(Chat)
.filter_by(user_id=user_id, archived=True)
.order_by(Chat.updated_at.desc())
)
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chats_by_user_id_and_search_text(
self,
user_id: str,
search_text: str,
include_archived: bool = False,
skip: int = 0,
limit: int = 60,
db: Optional[Session] = None,
) -> list[ChatModel]:
"""
Filters chats based on a search query using Python, allowing pagination using skip and limit.
"""
search_text = sanitize_text_for_db(search_text).lower().strip()
if not search_text:
return self.get_chat_list_by_user_id(
user_id, include_archived, filter={}, skip=skip, limit=limit, db=db
)
search_text_words = search_text.split(" ")
# search_text might contain 'tag:tag_name' format so we need to extract the tag_name, split the search_text and remove the tags
tag_ids = [
word.replace("tag:", "").replace(" ", "_").lower()
for word in search_text_words
if word.startswith("tag:")
]
# Extract folder names - handle spaces and case insensitivity
folders = Folders.search_folders_by_names(
user_id,
[
word.replace("folder:", "")
for word in search_text_words
if word.startswith("folder:")
],
)
folder_ids = [folder.id for folder in folders]
is_pinned = None
if "pinned:true" in search_text_words:
is_pinned = True
elif "pinned:false" in search_text_words:
is_pinned = False
is_archived = None
if "archived:true" in search_text_words:
is_archived = True
elif "archived:false" in search_text_words:
is_archived = False
is_shared = None
if "shared:true" in search_text_words:
is_shared = True
elif "shared:false" in search_text_words:
is_shared = False
search_text_words = [
word
for word in search_text_words
if (
not word.startswith("tag:")
and not word.startswith("folder:")
and not word.startswith("pinned:")
and not word.startswith("archived:")
and not word.startswith("shared:")
)
]
search_text = " ".join(search_text_words)
with get_db_context(db) as db:
query = db.query(Chat).filter(Chat.user_id == user_id)
if is_archived is not None:
query = query.filter(Chat.archived == is_archived)
elif not include_archived:
query = query.filter(Chat.archived == False)
if is_pinned is not None:
query = query.filter(Chat.pinned == is_pinned)
if is_shared is not None:
if is_shared:
query = query.filter(Chat.share_id.isnot(None))
else:
query = query.filter(Chat.share_id.is_(None))
if folder_ids:
query = query.filter(Chat.folder_id.in_(folder_ids))
query = query.order_by(Chat.updated_at.desc())
# Check if the database dialect is either 'sqlite' or 'postgresql'
dialect_name = db.bind.dialect.name
if dialect_name == "sqlite":
# SQLite case: using JSON1 extension for JSON searching
sqlite_content_sql = (
"EXISTS ("
" SELECT 1 "
" FROM json_each(Chat.chat, '$.messages') AS message "
" WHERE LOWER(message.value->>'content') LIKE '%' || :content_key || '%'"
")"
)
sqlite_content_clause = text(sqlite_content_sql)
query = query.filter(
or_(
Chat.title.ilike(bindparam("title_key")), sqlite_content_clause
).params(title_key=f"%{search_text}%", content_key=search_text)
)
# Check if there are any tags to filter, it should have all the tags
if "none" in tag_ids:
query = query.filter(text("""
NOT EXISTS (
SELECT 1
FROM json_each(Chat.meta, '$.tags') AS tag
)
"""))
elif tag_ids:
query = query.filter(
and_(
*[
text(f"""
EXISTS (
SELECT 1
FROM json_each(Chat.meta, '$.tags') AS tag
WHERE tag.value = :tag_id_{tag_idx}
)
""").params(**{f"tag_id_{tag_idx}": tag_id})
for tag_idx, tag_id in enumerate(tag_ids)
]
)
)
elif dialect_name == "postgresql":
# PostgreSQL doesn't allow null bytes in text. We filter those out by checking
# the JSON representation for \u0000 before attempting text extraction
# Safety filter: JSON field must not contain \u0000
query = query.filter(text("Chat.chat::text NOT LIKE '%\\\\u0000%'"))
# Safety filter: title must not contain actual null bytes
query = query.filter(text("Chat.title::text NOT LIKE '%\\x00%'"))
postgres_content_sql = """
EXISTS (
SELECT 1
FROM json_array_elements(Chat.chat->'messages') AS message
WHERE json_typeof(message->'content') = 'string'
AND LOWER(message->>'content') LIKE '%' || :content_key || '%'
)
"""
postgres_content_clause = text(postgres_content_sql)
query = query.filter(
or_(
Chat.title.ilike(bindparam("title_key")),
postgres_content_clause,
)
).params(title_key=f"%{search_text}%", content_key=search_text.lower())
# Check if there are any tags to filter, it should have all the tags
if "none" in tag_ids:
query = query.filter(text("""
NOT EXISTS (
SELECT 1
FROM json_array_elements_text(Chat.meta->'tags') AS tag
)
"""))
elif tag_ids:
query = query.filter(
and_(
*[
text(f"""
EXISTS (
SELECT 1
FROM json_array_elements_text(Chat.meta->'tags') AS tag
WHERE tag = :tag_id_{tag_idx}
)
""").params(**{f"tag_id_{tag_idx}": tag_id})
for tag_idx, tag_id in enumerate(tag_ids)
]
)
)
else:
raise NotImplementedError(
f"Unsupported dialect: {db.bind.dialect.name}"
)
# Perform pagination at the SQL level
all_chats = query.offset(skip).limit(limit).all()
log.info(f"The number of chats: {len(all_chats)}")
# Validate and return chats
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chats_by_folder_id_and_user_id(
self,
folder_id: str,
user_id: str,
skip: int = 0,
limit: int = 60,
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(folder_id=folder_id, user_id=user_id)
query = query.filter(or_(Chat.pinned == False, Chat.pinned == None))
query = query.filter_by(archived=False)
query = query.order_by(Chat.updated_at.desc())
if skip:
query = query.offset(skip)
if limit:
query = query.limit(limit)
all_chats = query.all()
return [ChatModel.model_validate(chat) for chat in all_chats]
def get_chats_by_folder_ids_and_user_id(
self, folder_ids: list[str], user_id: str, db: Optional[Session] = None
) -> list[ChatModel]:
with get_db_context(db) as db:
query = db.query(Chat).filter(
Chat.folder_id.in_(folder_ids), Chat.user_id == user_id
)
query = query.filter(or_(Chat.pinned == False, Chat.pinned == None))
query = query.filter_by(archived=False)
query = query.order_by(Chat.updated_at.desc())
all_chats = query.all()
return [ChatModel.model_validate(chat) for chat in all_chats]
def update_chat_folder_id_by_id_and_user_id(
self, id: str, user_id: str, folder_id: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
chat.folder_id = folder_id
chat.updated_at = int(time.time())
chat.pinned = False
db.commit()
db.refresh(chat)
return ChatModel.model_validate(chat)
except Exception:
return None
def get_chat_tags_by_id_and_user_id(
self, id: str, user_id: str, db: Optional[Session] = None
) -> list[TagModel]:
with get_db_context(db) as db:
chat = db.get(Chat, id)
tag_ids = chat.meta.get("tags", [])
return Tags.get_tags_by_ids_and_user_id(tag_ids, user_id, db=db)
def get_chat_list_by_user_id_and_tag_name(
self,
user_id: str,
tag_name: str,
skip: int = 0,
limit: int = 50,
db: Optional[Session] = None,
) -> list[ChatModel]:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id)
tag_id = tag_name.replace(" ", "_").lower()
log.info(f"DB dialect name: {db.bind.dialect.name}")
if db.bind.dialect.name == "sqlite":
# SQLite JSON1 querying for tags within the meta JSON field
query = query.filter(
text(
f"EXISTS (SELECT 1 FROM json_each(Chat.meta, '$.tags') WHERE json_each.value = :tag_id)"
)
).params(tag_id=tag_id)
elif db.bind.dialect.name == "postgresql":
# PostgreSQL JSON query for tags within the meta JSON field (for `json` type)
query = query.filter(
text(
"EXISTS (SELECT 1 FROM json_array_elements_text(Chat.meta->'tags') elem WHERE elem = :tag_id)"
)
).params(tag_id=tag_id)
else:
raise NotImplementedError(
f"Unsupported dialect: {db.bind.dialect.name}"
)
all_chats = query.all()
log.debug(f"all_chats: {all_chats}")
return [ChatModel.model_validate(chat) for chat in all_chats]
def add_chat_tag_by_id_and_user_id_and_tag_name(
self, id: str, user_id: str, tag_name: str, db: Optional[Session] = None
) -> Optional[ChatModel]:
tag_id = tag_name.replace(" ", "_").lower()
Tags.ensure_tags_exist([tag_name], user_id, db=db)
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
if tag_id not in chat.meta.get("tags", []):
chat.meta = {
**chat.meta,
"tags": list(set(chat.meta.get("tags", []) + [tag_id])),
}
db.commit()
db.refresh(chat)
return ChatModel.model_validate(chat)
except Exception:
return None
def count_chats_by_tag_name_and_user_id(
self, tag_name: str, user_id: str, db: Optional[Session] = None
) -> int:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id, archived=False)
tag_id = tag_name.replace(" ", "_").lower()
if db.bind.dialect.name == "sqlite":
query = query.filter(
text(
"EXISTS (SELECT 1 FROM json_each(Chat.meta, '$.tags') WHERE json_each.value = :tag_id)"
)
).params(tag_id=tag_id)
elif db.bind.dialect.name == "postgresql":
query = query.filter(
text(
"EXISTS (SELECT 1 FROM json_array_elements_text(Chat.meta->'tags') elem WHERE elem = :tag_id)"
)
).params(tag_id=tag_id)
else:
raise NotImplementedError(
f"Unsupported dialect: {db.bind.dialect.name}"
)
return query.count()
def delete_orphan_tags_for_user(
self,
tag_ids: list[str],
user_id: str,
threshold: int = 0,
db: Optional[Session] = None,
) -> None:
"""Delete tag rows from *tag_ids* that appear in at most *threshold*
non-archived chats for *user_id*. One query to find orphans, one to
delete them.
Use threshold=0 after a tag is already removed from a chat's meta.
Use threshold=1 when the chat itself is about to be deleted (the
referencing chat still exists at query time).
"""
if not tag_ids:
return
with get_db_context(db) as db:
orphans = []
for tag_id in tag_ids:
count = self.count_chats_by_tag_name_and_user_id(tag_id, user_id, db=db)
if count <= threshold:
orphans.append(tag_id)
Tags.delete_tags_by_ids_and_user_id(orphans, user_id, db=db)
def count_chats_by_folder_id_and_user_id(
self, folder_id: str, user_id: str, db: Optional[Session] = None
) -> int:
with get_db_context(db) as db:
query = db.query(Chat).filter_by(user_id=user_id)
query = query.filter_by(folder_id=folder_id)
count = query.count()
log.info(f"Count of chats for folder '{folder_id}': {count}")
return count
def delete_tag_by_id_and_user_id_and_tag_name(
self, id: str, user_id: str, tag_name: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
tags = chat.meta.get("tags", [])
tag_id = tag_name.replace(" ", "_").lower()
tags = [tag for tag in tags if tag != tag_id]
chat.meta = {
**chat.meta,
"tags": list(set(tags)),
}
db.commit()
return True
except Exception:
return False
def delete_all_tags_by_id_and_user_id(
self, id: str, user_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
chat = db.get(Chat, id)
chat.meta = {
**chat.meta,
"tags": [],
}
db.commit()
return True
except Exception:
return False
def delete_chat_by_id(self, id: str, db: Optional[Session] = None) -> bool:
try:
with get_db_context(db) as db:
db.query(ChatMessage).filter_by(chat_id=id).delete()
db.query(Chat).filter_by(id=id).delete()
db.commit()
return True and self.delete_shared_chat_by_chat_id(id, db=db)
except Exception:
return False
def delete_chat_by_id_and_user_id(
self, id: str, user_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
db.query(ChatMessage).filter_by(chat_id=id).delete()
db.query(Chat).filter_by(id=id, user_id=user_id).delete()
db.commit()
return True and self.delete_shared_chat_by_chat_id(id, db=db)
except Exception:
return False
def delete_chats_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
self.delete_shared_chats_by_user_id(user_id, db=db)
chat_id_subquery = (
db.query(Chat.id).filter_by(user_id=user_id).subquery()
)
db.query(ChatMessage).filter(
ChatMessage.chat_id.in_(chat_id_subquery)
).delete(synchronize_session=False)
db.query(Chat).filter_by(user_id=user_id).delete()
db.commit()
return True
except Exception:
return False
def delete_chats_by_user_id_and_folder_id(
self, user_id: str, folder_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
chat_id_subquery = (
db.query(Chat.id)
.filter_by(user_id=user_id, folder_id=folder_id)
.subquery()
)
db.query(ChatMessage).filter(
ChatMessage.chat_id.in_(chat_id_subquery)
).delete(synchronize_session=False)
db.query(Chat).filter_by(user_id=user_id, folder_id=folder_id).delete()
db.commit()
return True
except Exception:
return False
def move_chats_by_user_id_and_folder_id(
self,
user_id: str,
folder_id: str,
new_folder_id: Optional[str],
db: Optional[Session] = None,
) -> bool:
try:
with get_db_context(db) as db:
db.query(Chat).filter_by(user_id=user_id, folder_id=folder_id).update(
{"folder_id": new_folder_id}
)
db.commit()
return True
except Exception:
return False
def delete_shared_chats_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
chats_by_user = db.query(Chat).filter_by(user_id=user_id).all()
shared_chat_ids = [f"shared-{chat.id}" for chat in chats_by_user]
# Use subquery to delete chat_messages for shared chats
shared_id_subq = (
db.query(Chat.id)
.filter(Chat.user_id.in_(shared_chat_ids))
.subquery()
)
db.query(ChatMessage).filter(
ChatMessage.chat_id.in_(shared_id_subq)
).delete(synchronize_session=False)
db.query(Chat).filter(Chat.user_id.in_(shared_chat_ids)).delete()
db.commit()
return True
except Exception:
return False
def insert_chat_files(
self,
chat_id: str,
message_id: str,
file_ids: list[str],
user_id: str,
db: Optional[Session] = None,
) -> Optional[list[ChatFileModel]]:
if not file_ids:
return None
chat_message_file_ids = [
item.id
for item in self.get_chat_files_by_chat_id_and_message_id(
chat_id, message_id, db=db
)
]
# Remove duplicates and existing file_ids
file_ids = list(
set(
[
file_id
for file_id in file_ids
if file_id and file_id not in chat_message_file_ids
]
)
)
if not file_ids:
return None
try:
with get_db_context(db) as db:
now = int(time.time())
chat_files = [
ChatFileModel(
id=str(uuid.uuid4()),
user_id=user_id,
chat_id=chat_id,
message_id=message_id,
file_id=file_id,
created_at=now,
updated_at=now,
)
for file_id in file_ids
]
results = [
ChatFile(**chat_file.model_dump()) for chat_file in chat_files
]
db.add_all(results)
db.commit()
return chat_files
except Exception:
return None
def get_chat_files_by_chat_id_and_message_id(
self, chat_id: str, message_id: str, db: Optional[Session] = None
) -> list[ChatFileModel]:
with get_db_context(db) as db:
all_chat_files = (
db.query(ChatFile)
.filter_by(chat_id=chat_id, message_id=message_id)
.order_by(ChatFile.created_at.asc())
.all()
)
return [
ChatFileModel.model_validate(chat_file) for chat_file in all_chat_files
]
def delete_chat_file(
self, chat_id: str, file_id: str, db: Optional[Session] = None
) -> bool:
try:
with get_db_context(db) as db:
db.query(ChatFile).filter_by(chat_id=chat_id, file_id=file_id).delete()
db.commit()
return True
except Exception:
return False
def get_shared_chats_by_file_id(
self, file_id: str, db: Optional[Session] = None
) -> list[ChatModel]:
with get_db_context(db) as db:
# Join Chat and ChatFile tables to get shared chats associated with the file_id
all_chats = (
db.query(Chat)
.join(ChatFile, Chat.id == ChatFile.chat_id)
.filter(ChatFile.file_id == file_id, Chat.share_id.isnot(None))
.all()
)
return [ChatModel.model_validate(chat) for chat in all_chats]
Chats = ChatTable()
|