class User(db.Model, UserMixin):
         id = db.Column(db.Integer, primary_key=True)
         username = db.Column(db.String(64), unique=True)
         password_hash = db.Column(db.String(128), unique=False)
         ideas = db.relationship('Idea', backref='user', lazy='dynamic')

         @property
         def password(self):
             raise AttributeError('password is not a readable attribute')

         @password.setter
         def password(self, password):
             self.password_hash = generate_password_hash(password)

         def verify_password(self, password):
             return check_password_hash(self.password_hash, password)

         def __repr__(self):
             return '<User %r>' % self.username