Source code for activity.models.invoice_item

from __future__ import annotations

from onegov.core.orm.types import UUID
from onegov.pay import InvoiceItem
from sqlalchemy import Column
from sqlalchemy import ForeignKey
from sqlalchemy import Text


from typing import TYPE_CHECKING
if TYPE_CHECKING:
    import uuid
    from onegov.activity.models import BookingPeriodInvoice
    from sqlalchemy.orm import relationship




class ActivityInvoiceItem(InvoiceItem):
    """
    An invoice item related to an activity.

    Could also just be a donation or manual invoice item unrelated
    to a specific activity.
    """



    __mapper_args__ = {
        'polymorphic_identity': 'activity'
    }


    #: the attendee, if the item is connected to an attendee


    attendee_id: Column[uuid.UUID | None] = Column(
        UUID,  # type:ignore[arg-type]
        ForeignKey('attendees.id'),
        nullable=True
    )


    #: organizer (if the item is an activity)


    organizer: Column[str | None] = Column(Text, nullable=True)


    if TYPE_CHECKING:


        invoice: relationship[BookingPeriodInvoice]