25 lines
846 B
Python
25 lines
846 B
Python
from datetime import datetime
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from typing import Any, Dict
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from sqlalchemy import Column, DateTime, Integer
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from sqlalchemy.ext.declarative import declared_attr
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class Base:
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"""Base class for all database models."""
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@declared_attr
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def __tablename__(cls) -> str:
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"""Generate __tablename__ automatically from class name."""
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return cls.__name__.lower()
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id = Column(Integer, primary_key=True, index=True)
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created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
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updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
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def to_dict(self) -> Dict[str, Any]:
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"""Convert model instance to dictionary."""
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return {
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column.name: getattr(self, column.name)
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for column in self.__table__.columns
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} |