def save(self, db_conn: DatabaseConnection) -> None:
"""Save as self.history entries, but first wipe old ones."""
- db_conn.exec(f'DELETE FROM {self.table_name} WHERE parent_id = ?',
+ db_conn.exec(f'DELETE FROM {self.table_name} WHERE parent = ?',
(self.parent.id_,))
for timestamp, value in self.history.items():
db_conn.exec(f'INSERT INTO {self.table_name} VALUES (?, ?, ?)',