31 lines
799 B
Python
31 lines
799 B
Python
from sqlalchemy import create_engine
|
|
from sqlalchemy.orm import DeclarativeBase, sessionmaker
|
|
|
|
from backend.app.core.config import get_settings
|
|
|
|
settings = get_settings()
|
|
|
|
|
|
class Base(DeclarativeBase):
|
|
pass
|
|
|
|
|
|
def build_database_url() -> str:
|
|
return (
|
|
f"mysql+pymysql://{settings.mysql_user}:{settings.mysql_password}"
|
|
f"@{settings.mysql_host}:{settings.mysql_port}/{settings.mysql_database}"
|
|
)
|
|
|
|
|
|
engine = create_engine(build_database_url(), echo=settings.sql_echo, future=True)
|
|
SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, future=True)
|
|
|
|
|
|
def get_db_session():
|
|
"""提供数据库会话依赖，路由和 service 可复用这一入口。"""
|
|
session = SessionLocal()
|
|
try:
|
|
yield session
|
|
finally:
|
|
session.close()
|