first upload

backend/app/database.py

@@ -0,0 +1,30 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, declarative_base
+import os
+
+DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./drugs.db")
+
+# For SQLite, ensure the directory exists
+if "sqlite" in DATABASE_URL:
+    # Extract path from sqlite:/// URL
+    db_path = DATABASE_URL.replace("sqlite:///", "")
+    os.makedirs(os.path.dirname(db_path) or ".", exist_ok=True)
+
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False} if "sqlite" in DATABASE_URL else {}
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()
+
+# Drop and recreate all tables (for development only)
+Base.metadata.drop_all(bind=engine)
+Base.metadata.create_all(bind=engine)
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()