class Cart(db.Model):
__tablename__ = 'cart'
cart_id = db.Column('cart_id',
db.Integer,
primary_key=True,
autoincrement=True)
customer_idf = db.Column('customer_idf', db.Integer,
db.ForeignKey('user_table.cust_id'))
product_idf = db.Column('product_idf', db.Integer,
db.ForeignKey('product.product_id'))
quantity_to_buy = db.Column('quantity_to_buy', db.Integer, nullable=False)
wishlistkey = db.relationship('Wishlist',
backref='cart',
lazy=True,
uselist=False,
cascade='all,delete')
myorderkey = db.relationship('Myorder',
backref='cart',
lazy=True,
uselist=False,
cascade='all,delete')
def to_representation(self):
return {
'customer_id': self.cutomer_id,
'product_id': self.product_id,
'quantity_to_buy': self.quantity_to_buy
}
class User_table(db.Model):
cust_id = db.Column('cust_id',
db.Integer,
primary_key=True,
autoincrement=True)
cust_name = db.Column('cust_name', db.String(64))
cust_pwd = db.Column('cust_pwd', db.String(64))
cust_address = db.Column('cust_address', db.String(100))
cust_fk = db.relationship('Cart',
backref='user_table',
lazy=True,
uselist=False,
cascade='all,delete')
class Subcategory(db.Model):
__tablename__ = 'subcategory'
sub_id = db.Column('sub_id', db.Integer, primary_key=True)
sub_name = db.Column('sub_name', db.String(64))
productfk = db.relationship('Product',
secondary=associate_table2,
backref='subcategory',
lazy='joined',
cascade='all,delete')
def to_representation(self):
productfk = [x.to_representation() for x in self.productfk]
return {
'sub_id': self.sub_id,
'sub_name': self.sub_name,
'product': productfk
}
class Category(db.Model):
__tablename__ = 'category'
cat_id = db.Column('cat_id', db.Integer, primary_key=True)
cat_name = db.Column('cat_name', db.String(64))
subfk = db.relationship('Subcategory',
secondary=associate_table1,
backref='category',
lazy='joined',
cascade='all,delete')
def to_representation(self):
subfk = [x.to_representation() for x in self.subfk]
return {
'cat_id': self.cat_id,
'cat_name': self.cat_name,
'subcategory': subfk
}
class Product(db.Model):
__tablename__ = 'product'
product_id = db.Column('product_id',
db.Integer,
primary_key=True,
autoincrement=True)
product_name = db.Column('product_name', db.String(64))
cost = db.Column('cost', db.Integer)
avail_stock = db.Column('avail_stock', db.Integer)
productkey = db.relationship('Cart',
backref='product',
lazy=True,
uselist=False,
cascade='all,delete')
def to_representation(self):
return {
'product_id': self.product_id,
'product_name': self.product_name,
'cost': self.cost,
'avail_stock': self.avail_stock
}