def get_cart_cost(login_token):
empty = check_empty_cart_user(login_token)
if empty is not True:
# if so, check foreach item if the requested amount exist
cart_items = get_cart_items(login_token)
# cart_items is a array consist of shopping_cart objects
for shopping_cart_item in cart_items:
if ItemsLogic.check_in_stock(shopping_cart_item.item_id, shopping_cart_item.item_quantity) is False:
return False
# if so, sum all items costs, get from costumer his credentials
total_cost = 0
# for each item, calculate visible_discount
for shopping_cart_item in cart_items:
item = get_item(shopping_cart_item.item_id)
if shopping_cart_item.item_quantity > item.quantity:
return False
new_price = get_new_price_for_item(item, shopping_cart_item)
lottery = get_lottery(item.id)
if item.kind == 'ticket':
final_date = datetime.strptime(lottery.final_date, '%Y-%m-%d')
if final_date > datetime.now():
lottery_sum = get_lottery_sum(lottery.lotto_id)
if lottery_sum + shopping_cart_item.item_quantity * item.price > lottery.max_price:
return False
else:
return False
else:
return False
total_cost = total_cost + shopping_cart_item.item_quantity * new_price
return total_cost
return False
def check_stock_for_shopping_cart(cart_items):
for cart_item in cart_items:
if ItemsLogic.check_in_stock(cart_item.item_id,
cart_item.item_quantity) is False:
item = ItemsLogic.get_item(cart_item.item_id)
return 'Only ' + str(
item.quantity) + ' ' + item.name + ' exist in the system'
return True
def update_item_shopping_cart(username, item_id, new_quantity):
if username is not None and item_id is not None and new_quantity >= 0:
if new_quantity is 0:
return remove_item_shopping_cart(username, item_id)
if ItemsLogic.check_in_stock(item_id, new_quantity) is False:
return False
user = RegisteredUsers.get_user(username)
if user is not False:
return ShoppingCartDB.update_item_shopping_cart(
username, item_id, new_quantity)
return False
def add_item_shopping_cart(shop_cart_item):
if shop_cart_item.username is not None and shop_cart_item.item_id is not None and shop_cart_item.item_quantity > 0:
if ItemsLogic.check_in_stock(shop_cart_item.item_id,
shop_cart_item.item_quantity) is False:
return False
existing = ShoppingCartDB.get_shopping_cart_item(shop_cart_item)
if existing is not False:
return update_item_shopping_cart(
shop_cart_item.username, shop_cart_item.item_id,
shop_cart_item.item_quantity + existing.item_quantity)
else:
return ShoppingCartDB.add_item_shopping_cart(shop_cart_item)
return False
def add_item_shopping_cart(login_token, shop_cart_item):
if shop_cart_item.username is not None and shop_cart_item.item_id is not None and shop_cart_item.item_quantity > 0:
if ItemsLogic.check_in_stock(shop_cart_item.item_id, shop_cart_item.item_quantity) is False:
return False
shopping_cart = Consumer.loggedInUsersShoppingCart[login_token]
i = 0
while i < len(shopping_cart):
if shopping_cart[i].item_id == shop_cart_item.item_id:
shopping_cart[i].item_quantity += shop_cart_item.item_quantity
return True
i = i + 1
shopping_cart.append(shop_cart_item)
return True
return False
def add_guest_item_shopping_cart(guest, item_id, quantity):
if guest is not None and item_id is not None and quantity > 0:
if ItemsLogic.check_in_stock(item_id, quantity) is False:
return False
if guest in Consumer.guestShoppingCart:
shopping_cart = Consumer.guestShoppingCart[guest]
else:
Consumer.guestShoppingCart[guest] = []
shopping_cart = Consumer.guestShoppingCart[guest]
i = 0
while i < len(shopping_cart):
if shopping_cart[i].item_id == item_id:
shopping_cart[i].item_quantity += quantity
return True
i = i + 1
shopping_cart.append(ShoppingCartItem(guest, item_id, quantity, None))
return True
return False
def update_item_shopping_cart(login_token, item_id, new_quantity):
if login_token is not None and item_id is not None and new_quantity >= 0:
username = Consumer.loggedInUsers[login_token]
shopping_cart = Consumer.loggedInUsersShoppingCart[login_token]
if new_quantity is 0:
return remove_item_shopping_cart(username, item_id)
if ItemsLogic.check_in_stock(item_id, new_quantity) is False:
return False
user = RegisteredUsers.get_user(username)
if user is not False:
i = 0
while i < len(shopping_cart):
if shopping_cart[i].item_id == item_id:
if new_quantity == 0:
shopping_cart.remove(shopping_cart[i])
return True
else:
shopping_cart[i].item_quantity = new_quantity
return True
i = i + 1
return False
def update_item_shopping_cart_guest(guest, item_id, new_quantity):
if guest is not None and item_id is not None and new_quantity >= 0:
if guest in Consumer.guestShoppingCart:
shopping_cart = Consumer.guestShoppingCart[guest]
else:
Consumer.guestShoppingCart[guest] = []
shopping_cart = Consumer.guestShoppingCart[guest]
if new_quantity is 0:
return remove_item_shopping_cart_guest(guest, item_id)
if ItemsLogic.check_in_stock(item_id, new_quantity) is False:
return False
i = 0
while i < len(shopping_cart):
if shopping_cart[i].item_id == item_id:
if new_quantity == 0:
shopping_cart.remove(shopping_cart[i])
return True
else:
shopping_cart[i].item_quantity = new_quantity
return True
i = i + 1
return False