Improve Transaction#__str__

import mt940

from sqlalchemy import and_, select

from sqlalchemy.orm import Mapped, mapped_column, relationship

from sqlalchemy.orm import Mapped, mapped_column, relationship, MappedColumn

from sqlalchemy.schema import ForeignKey

from poolpay import db

            account=account,

        )

    @classmethod

    def get_canonical_order_column(cls) -> MappedColumn | None:

        return cls.date

    def __str__(self) -> str:

        return f"{self.date.isoformat()} {self.amount_cents/100:+6.2f} € {self.partner} {self.purpose} {self.posting_text}"

        return f"{self.date.isoformat()} {self.amount_cents/100:+7.2f} € [{self.posting_text}] {self.partner}: \"{self.purpose}\""