import logging import database.connection as connection logger = logging.getLogger(__name__) class testModel: def getAllUsers(): conn = None try: conn = connection.get_db_connection() if not conn: return None cursor = conn.cursor() cursor.execute("SELECT * FROM students"); result = cursor.fetchall() cursor.close() return result if result else None except Exception as e: logger.error(f"Database query error: {e}") return None finally: if conn: connection.release_db_connection(conn)