gallery.accords-library.com/server/szurubooru/db/snapshot.py

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from sqlalchemy import Column, Integer, DateTime, String, PickleType, ForeignKey
from sqlalchemy.orm import relationship
from szurubooru.db.base import Base
class Snapshot(Base):
__tablename__ = 'snapshot'
OPERATION_CREATED = 'added'
OPERATION_MODIFIED = 'modified'
OPERATION_DELETED = 'deleted'
snapshot_id = Column('id', Integer, primary_key=True)
creation_time = Column('creation_time', DateTime, nullable=False)
resource_type = Column('resource_type', String(32), nullable=False)
resource_id = Column('resource_id', Integer, nullable=False)
operation = Column('operation', String(16), nullable=False)
user_id = Column('user_id', Integer, ForeignKey('user.id'))
data = Column('data', PickleType)
user = relationship('User')