Files
planet/backend/app/models/data_snapshot.py
2026-03-25 17:19:10 +08:00

27 lines
1.2 KiB
Python

from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Integer, JSON, String
from sqlalchemy.sql import func
from app.db.session import Base
class DataSnapshot(Base):
__tablename__ = "data_snapshots"
id = Column(Integer, primary_key=True, autoincrement=True)
datasource_id = Column(Integer, nullable=False, index=True)
task_id = Column(Integer, ForeignKey("collection_tasks.id"), nullable=True, index=True)
source = Column(String(100), nullable=False, index=True)
snapshot_key = Column(String(100), nullable=True, index=True)
reference_date = Column(DateTime(timezone=True), nullable=True)
started_at = Column(DateTime(timezone=True), server_default=func.now())
completed_at = Column(DateTime(timezone=True), nullable=True)
record_count = Column(Integer, default=0)
status = Column(String(20), nullable=False, default="running")
is_current = Column(Boolean, default=True, index=True)
parent_snapshot_id = Column(Integer, ForeignKey("data_snapshots.id"), nullable=True, index=True)
summary = Column(JSON, default={})
created_at = Column(DateTime(timezone=True), server_default=func.now())
def __repr__(self):
return f"<DataSnapshot {self.id}: {self.source}/{self.status}>"