from sqlite3 import Row
from time import sleep
from plomtask.db import DatabaseConnection
-from plomtask.exceptions import HandledException, BadFormatException
+from plomtask.exceptions import (HandledException, BadFormatException,
+ NotFoundException)
TIMESTAMP_FMT = '%Y-%m-%d %H:%M:%S.%f'
self.default = default
self.history: dict[str, str | float] = {}
+ def __hash__(self) -> int:
+ history_tuples = tuple((k, v) for k, v in self.history.items())
+ hashable = (self.parent.id_, self.table_name, self.default,
+ history_tuples)
+ return hash(hashable)
+
@property
def _newest_timestamp(self) -> str:
"""Return most recent timestamp."""
def save(self, db_conn: DatabaseConnection) -> None:
"""Save as self.history entries, but first wipe old ones."""
+ if self.parent.id_ is None:
+ raise NotFoundException('cannot save attribute to parent if no ID')
db_conn.rewrite_relations(self.table_name, 'parent', self.parent.id_,
[[item[0], item[1]]
for item in self.history.items()])