def add(self, product, quantity=1, update_quantity=False, size=10.0):
product__id = str(product.pk)
strsize = str(int(size * 10 + 1000))
p = product__id + strsize
t = Product.objects.get(pk=product)
thumbnail = Product.get_path(t)
if p not in self.cart:
self.cart[p] = {
'quantity': 0,
'name': product.product_Name,
'price': str(product.unit_Price),
'size': str(size),
'pk': product__id,
'p': p,
'thumbnail': thumbnail,
'description': str(product.product_Description),
}
self.cart[p]['quantity'] += 1
self.save()
