class Transaction(db.Model):
id = db.Column(db.Integer(), primary_key=True)
date = db.Column(db.DateTime(), nullable=False, default=datetime.utcnow)
buyer_id = db.Column(db.Integer(), db.ForeignKey('user.id'), nullable=True)
status = db.Column(db.String(), nullable=False)
items = db.relationship('TransactionItem', backref='transaction', lazy=True)
class Order(db.Model):
"""Order model."""
__tablename__ = "order"
id = db.Column(db.Integer(), primary_key=True)
user = db.Column(db.Integer(), db.ForeignKey("user.id"), nullable=False)
_created = db.Column(db.DateTime(), nullable=False)
_last_change = db.Column(db.DateTime(), nullable=False)
status = db.Column(db.Enum(OrderStateChoices),
default=OrderStateChoices.cart,
nullable=False)
delivery_id = db.Column(db.Integer(),
db.ForeignKey("delivery.id"),
nullable=True)
delivery_sum = db.Column(db.Integer())
contact = db.Column(db.Integer(),
db.ForeignKey("contact.id"),
nullable=True)
customer = relationship("User")
delivery = relationship("Delivery")
def __init__(self,
user,
status=None,
dt=None,
contact=None,
delivery=None,
id=None):
self.id = id
self.user = user
self._created = datetime.utcnow()
self._last_change = dt if dt else datetime.utcnow()
self.status = status
self.contact = contact
self.delivery_id = delivery
self.delivery_sum = self._delivery_sum()
dt = property()
@dt.getter
def created(self):
return self._created.strftime("%d.%m.%Y %H:%M:%S")
@dt.getter
def last_change(self):
return self._last_change.strftime("%d.%m.%Y %H:%M:%S")
def _delivery_sum(self):
if self.delivery_id:
sellers = (db.session.query(func.count(distinct(OrderItem.shop)),
OrderItem.order == self.id).group_by(
OrderItem.order).first()[0])
delivery: Delivery = Delivery.query.get(self.delivery_id)
k = 1
if sellers > 2:
k = 0.85
return delivery.rate * sellers * k
class Product(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(80), nullable=False, unique=True)
price = db.Column(db.Integer(), nullable=False) # in cents
description = db.Column(db.Text(), default='XDDDD', nullable=False)
date_added = db.Column(db.DateTime(), nullable=False, default=datetime.utcnow)
image = db.Column(db.String(), nullable=False, default='pokemon.jpg')
def __init__(self, **kwargs):
super(Product, self).__init__(**kwargs)
self.description = kwargs.get('description') or f"This is a {self.name}" # act like default
def __repr__(self):
return f"Product(id={self.id}, name={self.name}, price={self.price})"
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True, autoincrement=True)
email = db.Column(db.String(80), nullable=True, unique=True)
password = db.Column(db.String(), nullable=True)
true_user = db.Column(db.Boolean(), default=False, nullable=False) # if false means that User() object is used to store address for transaction only
has_address = db.Column(db.Boolean(), default=False, nullable=False)
first_name = db.Column(db.String(), nullable=True)
last_name = db.Column(db.String(), nullable=True)
street = db.Column(db.String(), nullable=True)
street_number = db.Column(db.Integer(), nullable=True)
apartment_number = db.Column(db.Integer(), nullable=True)
city = db.Column(db.String(), nullable=True)
country = db.Column(db.String(), nullable=True)
postal_code = db.Column(db.String(), nullable=True)
transactions = db.relationship('Transaction', backref='buyer', lazy=True)
favourites = db.relationship('Product', secondary=favourites, lazy='subquery', backref=db.backref('lover', lazy=True))
def __repr__(self):
return f"User(id={self.id}, email={self.email}, has_address={self.has_address})"
def get_token(self):
serializer = TimedJSONWebSignatureSerializer(app.config['SECRET_KEY'])
token = serializer.dumps({'user_id': self.id})
return token
@staticmethod
def validate_token(token):
serializer = TimedJSONWebSignatureSerializer(app.config['SECRET_KEY'])
try:
data = serializer.loads(token)
user_id = data['user_id']
except:
return None
user = User.query.get(int(user_id))
return user
class Delivery(db.Model):
"""Shop delivery service model."""
__tablename__ = "delivery"
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(255), nullable=False, unique=True)
rate = db.Column(db.Integer(), nullable=False)
url = db.Column(db.String(255), nullable=True, unique=True)
user_id = db.Column(db.Integer, db.ForeignKey("user.id"), nullable=False)
manager = relationship("User")
def __init__(self, title, user_id, rate, id=None, url=None):
self.id = id
self.title = title
self.url = url
self.user_id = user_id
self.rate = rate
def __repr__(self):
return self.title
class Contact(db.Model):
"""User shipping address model."""
__tablename__ = "contact"
id = db.Column(db.Integer(), primary_key=True)
user = db.Column(db.ForeignKey("user.id"), nullable=False)
zip_code = db.Column(db.String(6))
city = db.Column(db.String(50))
street = db.Column(db.String(100))
house = db.Column(db.String(15), nullable=True)
structure = db.Column(db.String(15), nullable=True)
building = db.Column(db.String(15), nullable=True)
apartment = db.Column(db.String(15), nullable=True)
phone = db.Column(db.String(20))
addressee = relationship("User")
def __init__(
self,
user,
phone,
zip_code,
city,
street,
house=None,
structure=None,
building=None,
apartment=None,
id=None,
):
self.id = id
self.user = user
self.phone = phone
self.zip_code = zip_code
self.city = city
self.street = street
self.house = house
self.structure = structure
self.building = building
self.apartment = apartment
class Product(db.Model):
"""Product table model."""
__tablename__ = "product"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(255), nullable=False, unique=True)
category = db.Column(db.Integer(),
db.ForeignKey("category.id"),
nullable=False)
cat_rel = relationship("Category")
def __init__(self, name, category, id=None):
self.id = id
self.name = name
self.category = self.__set_category(category)
@staticmethod
def __set_category(name: str) -> int:
"""Auto set category id for product."""
category = Category.query.filter_by(name=name).first()
if category:
return category.id
raise ValueError("No such category")
class OrderItem(db.Model):
"""Model for goods in order."""
__tablename__ = "x_order_item"
order = db.Column(
db.Integer(),
db.ForeignKey("order.id"),
primary_key=True,
nullable=False,
)
product = db.Column(
db.Integer(),
db.ForeignKey("product.id"),
primary_key=True,
nullable=False,
)
shop = db.Column(db.Integer(),
db.ForeignKey("shop.id"),
primary_key=True,
nullable=False)
status = db.Column(
db.Enum(ItemOrderStateChoices),
default=ItemOrderStateChoices.ordered,
nullable=False,
)
quantity = db.Column(db.Integer(), nullable=False)
order_rel = relationship("Order")
shop_rel = relationship("Shop")
product_rel = relationship("Product")
def __init__(self, order, product, shop, quantity, status=None):
self.order = order
self.product = product
self.shop = self.__set_shop(shop)
self.quantity = quantity
self.status = status if status else ItemOrderStateChoices.ordered
@property
def discount(self):
if self.quantity < 4:
return 1
if 4 <= self.quantity < 7:
return 0.95
if 7 <= self.quantity < 10:
return 0.90
if self.quantity >= 10:
return 0.85
@staticmethod
def __set_shop(shop_name):
if isinstance(shop_name, int):
return shop_name
shop = Shop.query.filter_by(title=shop_name).first()
return shop.id
@property
def agg_price(self):
pr_info = ProductInfo.query.filter_by(product=self.product,
shop=self.shop).first()
price = discount_price(pr_info.price_rrc,
self.discount) * self.quantity
if price < pr_info.price * self.quantity:
return pr_info.price * self.quantity
return price
class ProductParameter(db.Model):
"""Product parameter x-table model."""
__tablename__ = "x_product_parameter"
product_info = db.Column(
db.Integer(),
db.ForeignKey("product_info.id"),
primary_key=True,
nullable=False,
)
parameter = db.Column(
db.Integer(),
db.ForeignKey("parameter.id"),
primary_key=True,
nullable=False,
)
value = db.Column(db.String(255), nullable=False)
p_info = relationship("ProductInfo")
param_rel = relationship("Parameter")
def __init__(self, product, parameter, value):
self.product_info = self.__set_product(product)
self.parameter = self.__set_parameter(parameter)
self.value = value
def __repr__(self):
return (f"{__class__.__name__}("
f"product={self.product_info!r}, "
f"parameter={self.parameter!r}, "
f"value={self.value!r}"
f")")
def __hash__(self):
return hash((self.product_info, self.parameter, self.value))
def __eq__(self, other):
return self.__hash__() == other.__hash__()
def __lt__(self, other):
return self.product_info < other.product_info
@staticmethod
def __set_product(name) -> int:
"""Auto set product_info id for product."""
if isinstance(name, int):
return name
if not name:
print("No name")
input()
pr_info = Product.query.filter_by(name=name).first()
if not pr_info:
print("No product")
input()
if pr_info:
return pr_info.id
raise ValueError("No such product info")
@staticmethod
def __set_parameter(name: str) -> int:
"""Auto set parameter id for product."""
if isinstance(name, int):
return name
param = Parameter.query.filter_by(name=name).first()
if param:
return param.id
raise ValueError("No such parameter")
class ProductInfo(db.Model):
"""ProductInfo table model."""
__tablename__ = "product_info"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(255), nullable=False)
product = db.Column(db.Integer(),
db.ForeignKey("product.id"),
nullable=False)
shop = db.Column(db.Integer(), db.ForeignKey("shop.id"), nullable=False)
price = db.Column(db.Integer(), nullable=False)
price_rrc = db.Column(db.Integer(), nullable=False)
quantity = db.Column(db.Integer(), nullable=False)
slug = db.Column(db.String(255), nullable=False)
product_rel = relationship("Product")
shop_rel = relationship("Shop")
def __init__(self,
name,
product,
shop,
price,
price_rrc,
quantity,
id=None):
self.id = id
self.name = name
self.product = self.__set_product(product)
self.shop = self.__set_shop(shop)
self.price = int(price * 100)
self.price_rrc = int(price_rrc * 100)
self.quantity = quantity
self.slug = slugify(name + " " + str(self.shop))
def __repr__(self):
return (f"{__class__.__name__}("
f"{self.id!r}, "
f"{self.name!r}, "
f"{self.product!r}, "
f"{self.shop!r}, "
f"{self.price!r}, "
f"{self.price_rrc!r}, "
f"{self.quantity!r}, "
f"{self.slug!r}"
f")")
@staticmethod
def __set_product(name: str) -> int:
"""Auto set product id for product."""
if isinstance(name, int):
return name
product = Product.query.filter_by(name=name).first()
if product:
return product.id
raise ValueError("No such product")
@staticmethod
def __set_shop(name) -> int:
"""Auto set shop id for product."""
if isinstance(name, int):
return name
shop = Shop.query.filter_by(title=name).first()
if shop:
return shop.id
raise ValueError("No such shop")
class TransactionItem(db.Model):
id = db.Column(db.Integer(), primary_key=True)
transaction_id = db.Column(db.Integer(), db.ForeignKey('transaction.id'))
product_id = db.Column(db.Integer())
quantity = db.Column(db.Integer())
from flask_login import UserMixin
from itsdangerous import TimedJSONWebSignatureSerializer
from web_shop import db, login_manager, app
@login_manager.user_loader
def load_user(user_id):
user = User.query.get(int(user_id))
if user:
if user.true_user: # has email and password, is able to log in, otherwise User() only stores address
return user
favourites = db.Table('favourites',
db.Column('user_id', db.Integer(), db.ForeignKey('user.id'), primary_key=True),
db.Column('product_id', db.Integer(), db.ForeignKey('product.id'), primary_key=True))
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True, autoincrement=True)
email = db.Column(db.String(80), nullable=True, unique=True)
password = db.Column(db.String(), nullable=True)
true_user = db.Column(db.Boolean(), default=False, nullable=False) # if false means that User() object is used to store address for transaction only
has_address = db.Column(db.Boolean(), default=False, nullable=False)
first_name = db.Column(db.String(), nullable=True)
last_name = db.Column(db.String(), nullable=True)
street = db.Column(db.String(), nullable=True)
street_number = db.Column(db.Integer(), nullable=True)