Files
minimap1.1/backend/app/models.py
2026-03-21 20:32:19 +08:00

68 lines
2.0 KiB
Python

from datetime import datetime, timedelta
from sqlalchemy import DateTime, Integer, String, and_, or_
from sqlalchemy.orm import Mapped, Session, mapped_column
from app.database import Base
class HTMLFile(Base):
__tablename__ = "html_files"
id: Mapped[int] = mapped_column(Integer, primary_key=True, index=True)
unique_id: Mapped[str] = mapped_column(
String(32),
unique=True,
index=True,
nullable=False,
)
filename: Mapped[str] = mapped_column(String(255), nullable=False)
title: Mapped[str | None] = mapped_column(String(120), nullable=True)
source: Mapped[str | None] = mapped_column(String(80), nullable=True)
request_id: Mapped[str | None] = mapped_column(String(120), nullable=True)
size_bytes: Mapped[int | None] = mapped_column(Integer, nullable=True)
created_at: Mapped[datetime] = mapped_column(
DateTime,
default=datetime.utcnow,
nullable=False,
)
expires_at: Mapped[datetime | None] = mapped_column(
DateTime,
nullable=True,
index=True,
)
updated_at: Mapped[datetime] = mapped_column(
DateTime,
default=datetime.utcnow,
onupdate=datetime.utcnow,
nullable=False,
)
@classmethod
def list_expired_records(
cls,
db: Session,
default_retention_days: int,
) -> list["HTMLFile"]:
now = datetime.utcnow()
fallback_cutoff = now - timedelta(days=default_retention_days)
return (
db.query(cls)
.filter(
or_(
cls.expires_at < now,
and_(
cls.expires_at.is_(None),
cls.created_at < fallback_cutoff,
),
)
)
.all()
)
def resolved_expires_at(self, default_retention_days: int) -> datetime:
if self.expires_at is not None:
return self.expires_at
return self.created_at + timedelta(days=default_retention_days)