id_: None | BaseModelId
cache_: dict[BaseModelId, Self]
+ @classmethod
+ def get_cached(cls: type[BaseModelInstance],
+ id_: BaseModelId) -> BaseModelInstance | None:
+ """Get object of id_ from class's cache, or None if not found."""
+ # pylint: disable=consider-iterating-dictionary
+ cache = cls.get_cache()
+ if id_ in cache.keys():
+ obj = cache[id_]
+ assert isinstance(obj, cls)
+ return obj
+ return None
+
+ @classmethod
+ def empty_cache(cls) -> None:
+ """Empty class's cache."""
+ cls.cache_ = {}
+
+ @classmethod
+ def get_cache(cls: type[BaseModelInstance]) -> dict[Any, BaseModel[Any]]:
+ """Get cache dictionary, create it if not yet existing."""
+ if not hasattr(cls, 'cache_'):
+ d: dict[Any, BaseModel[Any]] = {}
+ cls.cache_ = d
+ return cls.cache_
+
+ def cache(self) -> None:
+ """Update object in class's cache."""
+ if self.id_ is None:
+ raise HandledException('Cannot cache object without ID.')
+ cache = self.__class__.get_cache()
+ cache[self.id_] = self
+
+ def uncache(self) -> None:
+ """Remove self from cache."""
+ if self.id_ is None:
+ raise HandledException('Cannot un-cache object without ID.')
+ cache = self.__class__.get_cache()
+ del cache[self.id_]
+
@classmethod
def from_table_row(cls: type[BaseModelInstance],
# pylint: disable=unused-argument
break
return obj, from_cache
+ @classmethod
+ def all(cls: type[BaseModelInstance],
+ db_conn: DatabaseConnection) -> list[BaseModelInstance]:
+ """Collect all objects of class."""
+ items: dict[BaseModelId, BaseModelInstance] = {}
+ for k, v in cls.get_cache().items():
+ assert isinstance(v, cls)
+ items[k] = v
+ already_recorded = items.keys()
+ for id_ in db_conn.column_all(cls.table_name, 'id'):
+ if id_ not in already_recorded:
+ # pylint: disable=no-member
+ item = cls.by_id(db_conn, id_) # type: ignore[attr-defined]
+ items[item.id_] = item
+ return list(items.values())
+
def set_int_id(self, id_: int | None) -> None:
"""Set id_ if >= 1 or None, else fail."""
if (id_ is not None) and id_ < 1:
if update_with_lastrowid:
self.id_ = cursor.lastrowid # type: ignore[assignment]
self.cache()
-
- @classmethod
- def get_cached(cls: type[BaseModelInstance],
- id_: BaseModelId) -> BaseModelInstance | None:
- """Get object of id_ from class's cache, or None if not found."""
- # pylint: disable=consider-iterating-dictionary
- cache = cls.get_cache()
- if id_ in cache.keys():
- obj = cache[id_]
- assert isinstance(obj, cls)
- return obj
- return None
-
- def cache(self) -> None:
- """Update object in class's cache."""
- if self.id_ is None:
- raise HandledException('Cannot cache object without ID.')
- cache = self.__class__.get_cache()
- cache[self.id_] = self
-
- def uncache(self) -> None:
- """Remove self from cache."""
- if self.id_ is None:
- raise HandledException('Cannot un-cache object without ID.')
- cache = self.__class__.get_cache()
- del cache[self.id_]
-
- @classmethod
- def empty_cache(cls) -> None:
- """Empty class's cache."""
- cls.cache_ = {}
-
- @classmethod
- def all(cls: type[BaseModelInstance],
- db_conn: DatabaseConnection) -> list[BaseModelInstance]:
- """Collect all objects of class."""
- items: dict[BaseModelId, BaseModelInstance] = {}
- for k, v in cls.get_cache().items():
- assert isinstance(v, cls)
- items[k] = v
- already_recorded = items.keys()
- for id_ in db_conn.column_all(cls.table_name, 'id'):
- if id_ not in already_recorded:
- # pylint: disable=no-member
- item = cls.by_id(db_conn, id_) # type: ignore[attr-defined]
- items[item.id_] = item
- return list(items.values())
-
- @classmethod
- def get_cache(cls: type[BaseModelInstance]) -> dict[Any, BaseModel[Any]]:
- """Get cache dictionary, create it if not yet existing."""
- if not hasattr(cls, 'cache_'):
- d: dict[Any, BaseModel[Any]] = {}
- cls.cache_ = d
- return cls.cache_