model.py

from app import db 
from datetime import date
from helpers import gen_hash

class Blog(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(120))
    body = db.Column(db.String(480))
    date = db.Column(db.Date)
    deleted = db.Column(db.Boolean)
    owner_id = db.Column(db.Integer, db.ForeignKey('user.id'))

    def __init__(self, title, body, owner):
        self.title = title
        self.body = body
        self.date = date.today()
        self.deleted = False
        self.owner = owner

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(120))
    email = db.Column(db.String(120))
    password = db.Column(db.String(120))
    blogs = db.relationship('Blog', backref='owner')

    def __init__(self, name, email, password):
        self.name = name
        self.email = email
        self.password = gen_hash(password)