23 lines
802 B
Python
23 lines
802 B
Python
import datetime as dt
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from sqlalchemy import Column, Integer, DateTime, Boolean
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from sqlalchemy.orm import declared_attr
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from sqlalchemy.ext.hybrid import hybrid_property
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class CrudMixin:
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id = Column(Integer, primary_key=True)
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created_at = Column(DateTime, default=dt.datetime.utcnow, nullable=False)
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updated_at = Column(DateTime, default=dt.datetime.utcnow, onupdate=dt.datetime.utcnow, nullable=False)
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deleted = Column("deleted", Boolean, default=False, nullable=False)
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version = Column(Integer, default=1, nullable=False)
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@hybrid_property
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def is_deleted(self):
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return self.deleted
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def mark_deleted(self):
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self.deleted = True
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self.version += 1
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@declared_attr
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def __mapper_args__(cls):
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return {"version_id_col": cls.version}
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