58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
# Model.py
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from sqlalchemy import Column, DateTime, String, Integer, Text, BigInteger, func
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from sqlalchemy.ext.declarative import declared_attr, as_declarative
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from datetime import datetime
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from backend.db.base import Base # tu Base declarativa
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class Model_base(Base):
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__abstract__ = True
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# ID autoincremental por defecto en todos los modelos
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id = Column(BigInteger, primary_key=True, autoincrement=True)
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@declared_attr
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def sys_created_at(cls):
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# timestamptz + default en BD
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return Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
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@declared_attr
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def sys_created_by(cls):
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return Column(String, nullable=True)
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@declared_attr
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def sys_updated_at(cls):
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# onupdate lo pone la BD al actualizar
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return Column(DateTime(timezone=True), onupdate=func.now(), nullable=True)
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@declared_attr
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def sys_updated_by(cls):
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return Column(String, nullable=True)
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@declared_attr
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def sys_version(cls):
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return Column(Integer, default=1, nullable=False)
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@declared_attr
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def sys_notes(cls):
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return Column(Text, nullable=True)
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@declared_attr
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def sys_deleted_at(cls):
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return Column(DateTime(timezone=True), nullable=True)
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def __repr__(self):
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id_val = getattr(self, "id", None)
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return f"<{self.__class__.__name__} id={id_val}>"
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def __str__(self):
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cls = self.__class__.__name__
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id_val = getattr(self, "id", None)
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return f"{cls}(id={id_val})"
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def __json__(self) -> dict:
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out = {}
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if not hasattr(self, "__table__"): return out
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for c in self.__table__.columns:
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v = getattr(self, c.name, None)
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out[c.name] = v.isoformat() if isinstance(v, datetime) else v
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return out |