BrickTracker/bricktracker/record_list.py

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2025-01-17 11:03:00 +01:00
from sqlite3 import Row
from typing import Any, Generator, Generic, ItemsView, TypeVar, TYPE_CHECKING
from .fields import BrickRecordFields
from .sql import BrickSQL
if TYPE_CHECKING:
from .minifigure import BrickMinifigure
from .part import BrickPart
from .set import BrickSet
from .wish import BrickWish
T = TypeVar('T', 'BrickSet', 'BrickPart', 'BrickMinifigure', 'BrickWish')
# SQLite records
class BrickRecordList(Generic[T]):
select_query: str
records: list[T]
# Fields
fields: BrickRecordFields
def __init__(self, /):
self.fields = BrickRecordFields()
self.records = []
# Shorthand to field items
def items(self, /) -> ItemsView[str, Any]:
return self.fields.__dict__.items()
# Get all from the database
def select(
self,
/,
override_query: str | None = None,
order: str | None = None,
limit: int | None = None,
) -> list[Row]:
# Select the query
if override_query:
query = override_query
else:
query = self.select_query
return BrickSQL().fetchall(
query,
parameters=self.sql_parameters(),
order=order,
limit=limit,
)
# Generic SQL parameters from fields
def sql_parameters(self, /) -> dict[str, Any]:
parameters: dict[str, Any] = {}
for name, value in self.items():
parameters[name] = value
return parameters
# Make the list iterable
def __iter__(self, /) -> Generator[T, Any, Any]:
for record in self.records:
yield record
# Make the sets measurable
def __len__(self, /) -> int:
return len(self.records)