Пример #1
0
class StoreModel(db.Model):
    __tablename__ = 'stores'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80))

    items = db.relationship('ItemModel', lazy='dynamic')

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

    def json(self):
        return {
            'name': self.name,
            'items': [item.json() for item in self.items.all()]
        }

    @classmethod
    def find_by_name(cls, name):
        return cls.query.filter_by(name=name).first()

    def save_to_db(self):
        db.session.add(self)
        db.session.commit()

    def delete_from_db(self):
        db.session.delete(self)
        db.session.commit()
Пример #2
0
class ItemModel(db.Model):
    __tablename__ = 'items'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80))
    price = db.Column(db.Float(precision=2))

    # new for this section - new storeID column
    store_id = db.Column(db.Integer, db.ForeignKey('stores.id'))

    # SQL Alchemy creates the store and id in StoreModel table for this relationship
    store = db.relationship('StoreModel')

    def __init__(self, name, price, store_id):
        self.name = name
        self.price = price
        self.store_id = store_id

    def json(self):
        return {'name': self.name, 'price': self.price}

    @classmethod
    def find_by_name(cls, name):
        return cls.query.filter_by(name=name).first()

    def save_to_db(self):
        db.session.add(self)
        db.session.commit()

    def delete_from_db(self):
        db.session.delete(self)
        db.session.commit()
class ItemModel(db.Model):
    __tablename__ = 'items'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80))
    price = db.Column(db.Float(precision=2))

    def __init__(self, name, price):
        self.name = name
        self.price = price

    def json(self):
        return {'name': self.name, 'price': self.price}

    @classmethod
    def find_by_name(cls, name):
        return cls.query.filter_by(name=name).first()

    def save_to_db(self):
        db.session.add(self)
        db.session.commit()

    def delete_from_db(self):
        db.session.delete(self)
        db.session.commit()
Пример #4
0
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 save_to_db(self):
        db.session.add(self)
        db.session.commit()

    @classmethod
    def find_by_username(cls, username):
        return cls.query.filter_by(username=username).first()

    @classmethod
    def find_by_id(cls, _id):
        return cls.query.filter_by(id=_id).first()