Viral queue user model

models.py

class User(BaseModel, db.Model):
    __tablename__ = 'user'

    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True, nullable=False)
    email_confirmed = db.Column(db.Boolean, default=False)
    email_confirmed_on = db.Column(db.DateTime(timezone=True))
    waitlist = db.relationship('Waitlist', uselist=False, back_populates='user')

    def __init__(self, email):
        self.email = email