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creyPY/creyPY/fastapi/models/base.py

42 lines
1.3 KiB
Python

import uuid
from datetime import datetime
from sqlalchemy import Column, DateTime, String
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.ext.declarative import declared_attr
from sqlalchemy.orm import as_declarative
from sqlalchemy.sql import func
from .mixins import AutoAnnotateMixin, AutoInitMixin
@as_declarative()
class Base(AutoAnnotateMixin, AutoInitMixin):
__abstract__ = True
# Primary key as uuid
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
created_at = Column(DateTime(timezone=True), server_default=func.now())
updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
created_by_id = Column(String)
__name__: str
# TODO: Add automated foreign key resolution
# Generate __tablename__ automatically
@declared_attr
def __tablename__(cls) -> str:
return cls.__name__.lower()
def __str__(self) -> str:
# if the object has a name, title or similar attribute, return it
if hasattr(self, "name"):
return str(self.name) # type: ignore
# if the object has a title attribute, return it
if hasattr(self, "title"):
return str(self.title) # type: ignore
# otherwise return the object's id
return str(self.id)