user.py

from database.db import db


class UserModel(db.Model):
    __tablename__ = "users"
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80))
    password = db.Column(db.String())

    def __init__(self, username, password):
        self.username = username
        self.password = password

    def json(self):
        return {
            "id": self.id,
            "username": self.username
        }, 200

    # Method to save user to DB
    def save_to_db(self):
        db.session.add(self)
        db.session.commit()

    # Method to remove user from DB
    def remove_from_db(self):
        db.session.delete(self)
        db.session.commit()

    # Class method which finds user from DB by username
    @classmethod
    def find_user_by_username(cls, username):
        return cls.query.filter_by(username=username).first()

    # Class method which finds user from DB by id
    @classmethod
    def find_user_by_id(cls, _id):
        return cls.query.filter_by(id=_id).first()