mirror of
https://github.com/open-webui/open-webui
synced 2024-11-18 06:22:56 +00:00
115 lines
3.2 KiB
Python
115 lines
3.2 KiB
Python
import json
|
|
import logging
|
|
from contextlib import contextmanager
|
|
from typing import Any, Optional
|
|
|
|
from open_webui.apps.webui.internal.wrappers import register_connection
|
|
from open_webui.env import (
|
|
OPEN_WEBUI_DIR,
|
|
DATABASE_URL,
|
|
SRC_LOG_LEVELS,
|
|
DATABASE_POOL_MAX_OVERFLOW,
|
|
DATABASE_POOL_RECYCLE,
|
|
DATABASE_POOL_SIZE,
|
|
DATABASE_POOL_TIMEOUT,
|
|
)
|
|
from peewee_migrate import Router
|
|
from sqlalchemy import Dialect, create_engine, types
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy.orm import scoped_session, sessionmaker
|
|
from sqlalchemy.pool import QueuePool, NullPool
|
|
from sqlalchemy.sql.type_api import _T
|
|
from typing_extensions import Self
|
|
|
|
log = logging.getLogger(__name__)
|
|
log.setLevel(SRC_LOG_LEVELS["DB"])
|
|
|
|
|
|
class JSONField(types.TypeDecorator):
|
|
impl = types.Text
|
|
cache_ok = True
|
|
|
|
def process_bind_param(self, value: Optional[_T], dialect: Dialect) -> Any:
|
|
return json.dumps(value)
|
|
|
|
def process_result_value(self, value: Optional[_T], dialect: Dialect) -> Any:
|
|
if value is not None:
|
|
return json.loads(value)
|
|
|
|
def copy(self, **kw: Any) -> Self:
|
|
return JSONField(self.impl.length)
|
|
|
|
def db_value(self, value):
|
|
return json.dumps(value)
|
|
|
|
def python_value(self, value):
|
|
if value is not None:
|
|
return json.loads(value)
|
|
|
|
|
|
# Workaround to handle the peewee migration
|
|
# This is required to ensure the peewee migration is handled before the alembic migration
|
|
def handle_peewee_migration(DATABASE_URL):
|
|
# db = None
|
|
try:
|
|
# Replace the postgresql:// with postgres:// to handle the peewee migration
|
|
db = register_connection(DATABASE_URL.replace("postgresql://", "postgres://"))
|
|
migrate_dir = OPEN_WEBUI_DIR / "apps" / "webui" / "internal" / "migrations"
|
|
router = Router(db, logger=log, migrate_dir=migrate_dir)
|
|
router.run()
|
|
db.close()
|
|
|
|
except Exception as e:
|
|
log.error(f"Failed to initialize the database connection: {e}")
|
|
raise
|
|
finally:
|
|
# Properly closing the database connection
|
|
if db and not db.is_closed():
|
|
db.close()
|
|
|
|
# Assert if db connection has been closed
|
|
assert db.is_closed(), "Database connection is still open."
|
|
|
|
|
|
handle_peewee_migration(DATABASE_URL)
|
|
|
|
|
|
SQLALCHEMY_DATABASE_URL = DATABASE_URL
|
|
if "sqlite" in SQLALCHEMY_DATABASE_URL:
|
|
engine = create_engine(
|
|
SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
|
|
)
|
|
else:
|
|
if DATABASE_POOL_SIZE > 0:
|
|
engine = create_engine(
|
|
SQLALCHEMY_DATABASE_URL,
|
|
pool_size=DATABASE_POOL_SIZE,
|
|
max_overflow=DATABASE_POOL_MAX_OVERFLOW,
|
|
pool_timeout=DATABASE_POOL_TIMEOUT,
|
|
pool_recycle=DATABASE_POOL_RECYCLE,
|
|
pool_pre_ping=True,
|
|
poolclass=QueuePool,
|
|
)
|
|
else:
|
|
engine = create_engine(
|
|
SQLALCHEMY_DATABASE_URL, pool_pre_ping=True, poolclass=NullPool
|
|
)
|
|
|
|
|
|
SessionLocal = sessionmaker(
|
|
autocommit=False, autoflush=False, bind=engine, expire_on_commit=False
|
|
)
|
|
Base = declarative_base()
|
|
Session = scoped_session(SessionLocal)
|
|
|
|
|
|
def get_session():
|
|
db = SessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|
|
|
|
|
|
get_db = contextmanager(get_session)
|