techniq

from datetime import datetime
from sqlalchemy import Column, Integer, DateTime, ForeignKey
from sqlalchemy.orm import relationship
from sqlalchemy.ext.declarative import declared_attr
from flask_security import current_user


class AuditMixin(object):
    created_at = Column(DateTime, default=datetime.now)
    updated_at = Column(DateTime, default=datetime.now, onupdate=datetime.now)

luhn

class Table(Base):
    id = Column(Integer, primary_key=True)
    _name = Column('name', String(24))

    @property
    def name(self):
        return self._name;

    @name.setter
    def name(self, value):