初始化

app/core/database.py

@@ -0,0 +1,20 @@
+from sqlalchemy import create_engine, MetaData
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+from .config import settings
+
+engine = create_engine(settings.DATABASE_URL, echo=settings.APP_DEBUG)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+def init_db():
+    """初始化数据库表"""
+    Base.metadata.create_all(bind=engine)