초기 커밋 - EV AS 관리 시스템

backend/database.py

@@ -0,0 +1,18 @@
+import os
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, DeclarativeBase
+
+DATABASE_URL = os.getenv("DATABASE_URL", "postgresql://evuser:evpassword@db:5432/evcharger")
+
+engine = create_engine(DATABASE_URL, pool_pre_ping=True)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+class Base(DeclarativeBase):
+    pass
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()