Subversion Repositories SmartDukaan

'''

Created on 10-May-2010

@author: ashish

'''

from elixir import *

from shop2020.clients.CatalogClient import CatalogClient

from shop2020.clients.LogisticsClient import LogisticsClient

from shop2020.clients.PromotionClient import PromotionClient

from shop2020.clients.TransactionClient import TransactionClient

from shop2020.model.v1 import user

from shop2020.model.v1.user.impl.Dataservice import Cart, Line, Address, User, \

    Discount, InsuranceDetails

from shop2020.thriftpy.logistics.ttypes import LogisticsServiceException, \

    DeliveryType

from shop2020.thriftpy.model.v1.catalog.ttypes import Item, InsurerType

from shop2020.thriftpy.model.v1.order.ttypes import Transaction as TTransaction, \

    TransactionStatus as TTransactionStatus, Order as TOrder, LineItem as TLineItem, \

    OrderStatus, OrderSource

from shop2020.thriftpy.model.v1.user.ttypes import CartStatus, LineStatus, \

    ShoppingCartException, PromotionException, CartPlus

from shop2020.utils.Utils import to_py_date, to_java_date

import datetime

from shop2020.model.v1.user.impl.Converters import to_t_cart

def get_cart(userId):

    user = User.get_by(id=userId)

    return user.active_cart

def get_cart_by_id(id):

    cart = Cart.get_by(id=id)

    return cart

def create_cart():

    cart = Cart()

    cart.created_on = datetime.datetime.now()

    cart.updated_on = datetime.datetime.now()

    cart.cart_status = CartStatus.ACTIVE

    return cart

def get_carts_between(start_time, end_time, status):

    init_time = to_py_date(start_time)

    finish_time = to_py_date(end_time)

    query = Cart.query

    if status:

        query = query.filter(Cart.cart_status==status)

    if init_time:

        query = query.filter(Cart.created_on >= init_time)

    if finish_time:

        query = query.filter(Cart.created_on <= finish_time)

    carts = query.all()

    return carts

def get_line(item_id, cart_id, status, single):

    #get cart first 

    try:

        found_cart = Cart.get_by(id=cart_id)

    except:

        raise ShoppingCartException(101, "cart not found ")

    query = Line.query.filter_by(cart = found_cart, item_id = item_id)

    if status:

        query = query.filter_by(line_status = status)

    else:

        query = query.filter_by(line_status = LineStatus.LINE_ACTIVE)

    try:

        if single:

            return query.one()

        else:

            return query.all()

    except:

        return None

def add_item_to_cart(cart_id, item_id, quantity, sourceId):

    if not item_id:

        raise ShoppingCartException(101, "item_id cannot be null")

    if not quantity:

        raise ShoppingCartException(101, "quantity cannot be null")    

    cart = Cart.get_by(id = cart_id)    

    if not cart:

        raise ShoppingCartException(101, "no cart attached to this id" + str(cart_id))

    retval = ""

    catalog_client = CatalogClient().get_client()

    item = catalog_client.getItemForSource(item_id, sourceId)

    dataProtectionInsurer = catalog_client.getPrefferedInsurerForItem(item_id,InsurerType._NAMES_TO_VALUES.get("DATA"))

    item_shipping_info = catalog_client.isActive(item_id)

    if not item_shipping_info.isActive:

        return catalog_client.getItemStatusDescription(item_id)

    current_time = datetime.datetime.now()

    cart.updated_on = current_time

    line = get_line(item_id, cart_id, None,True)

    if line:

        #change the quantity only

        line.insuranceAmount = (line.insuranceAmount/line.quantity) * quantity

        line.quantity = quantity

        line.updated_on = current_time

        line.dataProtectionAmount = (line.dataProtectionAmount/line.quantity) * quantity

    else:

        line = Line()

        line.cart = cart

        line.item_id = item_id

        line.quantity = quantity

        line.created_on = current_time

        line.updated_on = current_time

        line.actual_price = item.sellingPrice

        line.line_status = LineStatus.LINE_ACTIVE

        line.insurer = 0

        line.insuranceAmount = 0

        #DATA INSURER IS SET UPON ADD TO CART

        line.dataProtectionInsurer = dataProtectionInsurer

    session.commit()

    return retval

def delete_item_from_cart(cart_id, item_id):

    if not item_id:

        raise ShoppingCartException(101, "item_id cannot be null")

    cart = Cart.get_by(id = cart_id)

    if not cart:

        raise ShoppingCartException(101, "no cart attached to this id")

    item = get_line(item_id, cart_id, None, True)

    count_deleted_discounts = delete_discounts_for_line(item)

    item.delete()

    current_time = datetime.datetime.now()

    cart.updated_on = current_time

    session.commit()

def delete_discounts_for_line(item_line):

    count_deleted = Discount.query.filter_by(line = item_line).delete()

    session.commit()

    return count_deleted

def delete_discounts_from_cart(cart_id, cart = None):

    if cart is None:

        if cart_id is None:

            raise ShoppingCartException(101, 'cart_id and cart, both cannot be null')

        else:

            cart = Cart.get_by(id = cart_id)

    if cart.lines:

        for line in cart.lines:

            delete_discounts_for_line(line)

def save_discounts(discounts):

    if not discounts:

        raise ShoppingCartException(101, 'discounts be null')

    if len(discounts) > 0:

        cart = Cart.get_by(id = discounts[0].cart_id)

        for t_discount in discounts:

            line = Line.query.filter_by(cart = cart, item_id = t_discount.item_id).first()

            if line is not None:

                discount = Discount()

                discount.line = line

                discount.discount = t_discount.discount

                discount.quantity = t_discount.quantity

                session.commit()

def add_address_to_cart(cart_id, address_id):

    if not cart_id:

        raise ShoppingCartException(101, "cart id cannot be made null")

    if not address_id:

        raise ShoppingCartException(101, "address id cannot be made null")

    cart = get_cart_by_id(cart_id)

    if not cart:

        raise ShoppingCartException(101, "no cart for this id")

    address = Address.get_by(id=address_id)

    if not address:

        raise ShoppingCartException(101, "No address for this id")

    cart.address_id = address_id

    current_time = datetime.datetime.now()

    #cart.updated_on = current_time

    session.commit()

def add_store_to_cart(cartId, storeId):

    if not cartId:

        raise ShoppingCartException(101, "cart id cannot be made null")

    cart = get_cart_by_id(cartId)

    if not cart:

        raise ShoppingCartException(101, "no cart for this id")

    if storeId:

        cart.pickupStoreId = storeId

    else:

        cart.pickupStoreId = None

    session.commit()

def apply_coupon_to_cart(t_cart, coupon_code):

    cart = get_cart_by_id(t_cart.id)

    if not cart:

        raise ShoppingCartException(101, "no cart attached to this id")

    pc = PromotionClient().get_client()

    for t_line in t_cart.lines:

        line = Line.query.filter_by(cart = cart).filter_by(item_id = t_line.itemId).one()

        if not pc.isGiftVoucher(coupon_code):

            line.discounted_price = t_line.discountedPrice

        line.dealText = t_line.dealText

        line.freebieId = t_line.freebieId

    cart.total_price = t_cart.totalPrice

    cart.discounted_price = t_cart.discountedPrice

    cart.coupon_code = coupon_code

    session.commit()

def remove_coupon(cart_id):

    cart = get_cart_by_id(cart_id)

    if not cart:

        raise ShoppingCartException(101, "no cart attached to this id")

    #Resetting discounted price of each line in cart to Null

    for line in cart.lines:

        line.discounted_price = None

        line.dealText = None

        line.freebieId = None

    delete_discounts_from_cart(cart.id, cart=cart)

    cart.discounted_price = None

    cart.coupon_code = None

    session.commit()

def commit_cart(cart_id, sessionSource, sessionTime, firstSource, firstSourceTime, userId, schemeId, orderSource):   

    cart = get_cart_by_id(cart_id)   

    #now we have a cart. Need to create a transaction with it

    txn = TTransaction()

    txn.shoppingCartid = cart_id

    txn.customer_id = userId

    txn.createdOn = to_java_date(datetime.datetime.now())

    txn.transactionStatus = TTransactionStatus.INIT

    txn.statusDescription = "New Order"

    txn.coupon_code = cart.coupon_code

    txn.sessionSource = sessionSource

    txn.sessionStartTime = sessionTime

    txn.firstSource = firstSource

    txn.firstSourceTime = firstSourceTime

    txn.emiSchemeId = schemeId

    txn.orders = create_orders(cart, userId, orderSource)

    transaction_client = TransactionClient().get_client()

    txn_id = transaction_client.createTransaction(txn)

    session.commit()

    return txn_id

def create_orders(cart, userId, orderSource):

    cart_lines = cart.lines

    orders = []

    isGv = False

    if cart.coupon_code:

        try:

            pc = PromotionClient().get_client()

            isGv = pc.isGiftVoucher(cart.coupon_code)

        except:

            isGv = False

    insuranceDetails = InsuranceDetails.get_by(addressId = cart.address_id)

    for line in cart_lines:

        if line.line_status == LineStatus.LINE_ACTIVE:

            quantity_remaining_for_order = line.quantity

            for discount in line.discounts:

                i = 0

                while i < discount.quantity:

                    t_line_item = create_line_item(line.item_id, line.actual_price if isGv else (line.actual_price - discount.discount))

                    t_order = create_order(userId, cart.address_id, t_line_item, cart.pickupStoreId, discount.discount if isGv else 0, line.insurer, (line.insuranceAmount/line.quantity), insuranceDetails,line.dataProtectionInsurer,(line.dataProtectionAmount)/line.quantity, orderSource, line.freebieId)

                    orders.append(t_order)

                    i += 1

                quantity_remaining_for_order -= discount.quantity

            i = 0

            while i < quantity_remaining_for_order:

                t_line_item = create_line_item(line.item_id, line.actual_price)

                t_order = create_order(userId, cart.address_id, t_line_item, cart.pickupStoreId, 0, line.insurer, (line.insuranceAmount/line.quantity), insuranceDetails, line.dataProtectionInsurer,(line.dataProtectionAmount)/line.quantity, orderSource, line.freebieId)

                orders.append(t_order)

                i += 1

    return orders

def create_order(userId, address_id, t_line_item, pickupStoreId, gvAmount, insurer, insuranceAmount, insuranceDetails, dataProtectionInsurer, dataProtectionAmount, orderSource, freebieId):

    user = User.get_by(id=userId)

    address = Address.get_by(id=address_id)

    t_order = TOrder()

    t_order.customer_id = user.id

    t_order.customer_email = user.email

    t_order.customer_name = address.name

    t_order.customer_pincode = address.pin

    t_order.customer_address1 = address.line_1

    t_order.customer_address2 = address.line_2

    t_order.customer_city = address.city

    t_order.customer_state = address.state

    t_order.customer_mobilenumber = address.phone

    t_order.total_amount = t_line_item.total_price + insuranceAmount + dataProtectionAmount

    t_order.gvAmount = gvAmount

    t_order.total_weight = t_line_item.total_weight

    t_order.lineitems = [t_line_item]

    t_order.status = OrderStatus.PAYMENT_PENDING

    t_order.statusDescription = "Payment Pending"

    t_order.created_timestamp = to_java_date(datetime.datetime.now())

    t_order.pickupStoreId = pickupStoreId 

    t_order.insuranceAmount = insuranceAmount 

    t_order.insurer = insurer

    if insuranceDetails:

        t_order.dob = insuranceDetails.dob

        t_order.guardianName = insuranceDetails.guardianName

    catalog_client = CatalogClient().get_client()

    if freebieId is None:

        freebie_item_id = catalog_client.getFreebieForItem(t_line_item.item_id)

        if freebie_item_id:

            t_order.freebieItemId = freebie_item_id

    else:

        freebie_item_id = None if freebieId == 0 else freebieId  

    t_order.source = orderSource

    t_order.dataProtectionInsurer = dataProtectionInsurer

    t_order.dataProtectionAmount = dataProtectionAmount

    return t_order

def create_line_item(item_id, final_price, quantity=1):

    inventory_client = CatalogClient().get_client()

    item = inventory_client.getItem(item_id)

    t_line_item = TLineItem()

    t_line_item.productGroup = item.productGroup

    t_line_item.brand = item.brand

    t_line_item.model_number = item.modelNumber

    if item.color is None or item.color == "NA":

        t_line_item.color = ""

    else:

        t_line_item.color = item.color

    t_line_item.model_name = item.modelName

    t_line_item.extra_info = item.featureDescription

    t_line_item.item_id = item.id

    t_line_item.quantity = quantity

    t_line_item.unit_price = final_price

    t_line_item.total_price = final_price * quantity

    t_line_item.unit_weight = item.weight

    t_line_item.total_weight = item.weight if item.weight is None else item.weight * quantity

    t_line_item.dealText = item.bestDealText

    if item.warrantyPeriod:

        #Computing Manufacturer Warranty expiry date

        today = datetime.date.today()

        expiry_year = today.year + int((today.month + item.warrantyPeriod) / 12)

        expiry_month = (today.month + item.warrantyPeriod) % 12

        try:

            expiry_date = datetime.datetime(expiry_year, expiry_month, today.day, 23, 59, 59, 999999)

        except ValueError:

            try:

                expiry_date = datetime.date(expiry_year, expiry_month, (today.day - 1), 23, 59, 59, 999999)

            except ValueError:

                try:

                    expiry_date = datetime.date(expiry_year, expiry_month, (today.day - 2), 23, 59, 59, 999999)

                except ValueError:

                    expiry_date = datetime.date(expiry_year, expiry_month, (today.day - 3), 23, 59, 59, 999999)

        t_line_item.warrantry_expiry_timestamp = to_java_date(expiry_date)

    return t_line_item

def validate_cart(cartId, sourceId):

    inventory_client = CatalogClient().get_client()

    logistics_client = LogisticsClient().get_client()

    promotion_client = PromotionClient().get_client()

    retval = ""

    emival = ""

    # No need to validate duplicate items since there are only two ways

    # to add items to a cart and both of them check whether the item being

    # added is a duplicate of an already existing item.

    cart = Cart.get_by(id=cartId)

    cart_lines = cart.lines

    customer_pincode = None

    current_time = datetime.datetime.now()

    if cart.pickupStoreId :

        store = logistics_client.getPickupStore(cart.pickupStoreId)

        customer_pincode = store.pin

    if cart.address_id != None and customer_pincode == None:

        address = Address.get_by(id=cart.address_id)

        customer_pincode = address.pin

    if not customer_pincode:

        user = User.get_by(active_cart_id = cartId)

        default_address_id = user.default_address_id

        if default_address_id:

            address = Address.get_by(id = default_address_id)

            customer_pincode = address.pin

    if not customer_pincode:

        #FIXME should not be hard coded. May be we can pick from config server.

        customer_pincode = "110001"

    cart.total_price = 0

    for line in cart_lines:

        old_estimate = line.estimate

        item_id = line.item_id

        item = inventory_client.getItemForSource(item_id, sourceId)

        item_shipping_info = inventory_client.isActive(item_id) 

        if item_shipping_info.isActive:

            if item_shipping_info.isRisky and item_shipping_info.quantity < line.quantity:

                line.quantity = 1

                retval = "Try adding a smaller quantity of " + item.brand + " " + item.modelNumber + " (" + item.color + ")"

            line.actual_price = item.sellingPrice 

            cart.total_price = cart.total_price + (line.actual_price * line.quantity)

            try:

                item_delivery_estimate = logistics_client.getLogisticsEstimation(item_id, customer_pincode, DeliveryType.PREPAID).deliveryTime

            except LogisticsServiceException:

                item_delivery_estimate = -1

                #TODO Use the exception clause to set the retval appropriately

            except :

                item_delivery_estimate = -1

            if old_estimate != item_delivery_estimate:

                line.estimate = item_delivery_estimate

                cart.updated_on = current_time

        else:

            line.delete()

    if cart.checked_out_on is not None:

        if cart.updated_on > cart.checked_out_on:

            cart.checked_out_on = None

    session.commit()

    cart = Cart.get_by(id=cartId)

    cart_lines = cart.lines

    for line in cart_lines :

        if line.insurer > 0 :

            insure_item(line.item_id, cartId, True, InsurerType._NAMES_TO_VALUES.get("DEVICE"))

        if line.dataProtectionInsurer > 0:

            insure_item(line.item_id, cartId, True, InsurerType._NAMES_TO_VALUES.get("DATA"))

    if cart.coupon_code is not None:

        try:

            updated_cart = promotion_client.applyCoupon(cart.coupon_code, cart.id)

#            totalInsuranceAmt = 0

#            for t_line in updated_cart.lines:

#            #Find the line in the database which corresponds to this line

#                line = Line.query.filter_by(cart = cart).filter_by(item_id = t_line.itemId).one()

#            #Update its discounted price.

#                line.discounted_price = t_line.discountedPrice

#            #If discounted price of line is set and this coupon is not a gift voucher that means

#            # we will need to correct the insurance price accordingly.

##                if line.insurer > 0 and line.discounted_price and not promotion_client.isGiftVoucher(cart.coupon_code) :

##                    cc = CatalogClient().get_client()

##                    insuranceAmt = cc.getInsuranceAmount(line.item_id, line.discounted_price, line.insurer, line.quantity)

##                    line.insuranceAmount = insuranceAmt

##                    totalInsuranceAmt += insuranceAmt

#            cart.total_price = updated_cart.totalPrice

#            cart.discounted_price = updated_cart.discountedPrice

#            session.commit()

            if updated_cart.message is not None:

                emival = updated_cart.message

        except PromotionException as ex:

            remove_coupon(cart.id)

            retval = ex.message

    return [retval, emival]

def merge_cart(fromCartId, toCartId):

    fromCart = Cart.get_by(id=fromCartId)

    toCart = Cart.get_by(id=toCartId)

    old_lines = fromCart.lines

    new_lines = toCart.lines

    for line in old_lines:

        for discount in line.discounts:

            discount.delete()

    session.commit()

    for line in old_lines:

        flag = True

        for new_line in new_lines:

            if line.item_id == new_line.item_id:

                flag = False

        if flag:

            line.cart_id = toCartId

        else:

            line.delete()

    if toCart.coupon_code is None:

        toCart.coupon_code = fromCart.coupon_code

    toCart.updated_on = datetime.datetime.now()

    fromCart.expired_on = datetime.datetime.now()

    fromCart.cart_status = CartStatus.INACTIVE

    session.commit()

def check_out(cartId):

    if cartId is None:

        raise ShoppingCartException(101, "Cart id not specified")

    cart = Cart.get_by(id = cartId)

    if cart is None:

        raise ShoppingCartException(102, "The specified cart couldn't be found")

    cart.checked_out_on = datetime.datetime.now()

    session.commit()

    return True

def reset_cart(cartId, items):

    if cartId is None:

        raise ShoppingCartException(101, "Cart id not specified")

    for item_id, quantity in items.iteritems():

        line = Line.query.filter_by(cart_id=cartId, item_id=item_id).one()

        if line is not None:

            delete_discounts_for_line(line)

            line.discounted_price = None

            line.quantity = line.quantity - quantity

            if line.quantity == 0:

                line.delete()

    cart = Cart.get_by(id=cartId)

    cart.updated_on = datetime.datetime.now()

    cart.checked_out_on = None

    # Removing Coupon

    cart.total_price = None

    cart.discounted_price = None

    cart.coupon_code = None

    session.commit()

    return True

def get_carts_with_coupon_count(coupon_code):

    return Cart.query.filter_by(coupon_code = coupon_code).count()

def show_cod_option(cartId, sourceId, pincode):

    cart = Cart.get_by(id = cartId)

    cod_option = True

    logistics_client = LogisticsClient().get_client()

    if cart:

        if cart.coupon_code:

            promotion_client = PromotionClient().get_client()

            cod_option = promotion_client.isCodApplicable(to_t_cart(cart))

        if cod_option and cart.lines:

            for line in cart.lines:

                logistics_info = logistics_client.getLogisticsEstimation(line.item_id, pincode, DeliveryType.PREPAID)

                if not logistics_info.codAllowed:

                    cod_option = False

                    break

            if cart.total_price > 60000 or cart.total_price <= 250:

                cod_option = False

    return cod_option

def get_products_added_to_cart(startDate, endDate):

    lines = session.query(Line.item_id).filter(Line.created_on > to_py_date(startDate)).filter(Line.created_on < to_py_date(endDate)).all()

    datas = []

    for line in lines:

        datas.append(line[0])

    return datas

def insure_item(itemId, cartId, toInsure, insurerType):

    cart = Cart.get_by(id = cartId)

    line = None

    for cartLine in cart.lines:

        if(cartLine.item_id == itemId):

            line = cartLine

            break

    if not line:

        print("Error : No line found for cartId : " + cartId + " and itemId : " + itemId)

        return False

    try:

        if toInsure:

            csc = CatalogClient().get_client()

            item = csc.getItem(itemId)

            insurerId = csc.getPrefferedInsurerForItem(itemId,insurerType)

            insuranceAmount = csc.getInsuranceAmount(itemId, line.discounted_price if line.discounted_price else line.actual_price, insurerId, line.quantity)

            if InsurerType._VALUES_TO_NAMES.get(insurerType)=='DEVICE':

                if cart.discounted_price:

                    cart.discounted_price = cart.discounted_price - line.insuranceAmount + insuranceAmount

                line.insurer = insurerId

                line.insuranceAmount = insuranceAmount

            if InsurerType._VALUES_TO_NAMES.get(insurerType)=='DATA':

                if cart.discounted_price:

                    cart.discounted_price = cart.discounted_price - line.dataProtectionAmount + insuranceAmount

                line.dataProtectionInsurer = insurerId

                line.dataProtectionAmount = insuranceAmount

            cart.total_price = cart.total_price + insuranceAmount

        else:

            if InsurerType._VALUES_TO_NAMES.get(insurerType)=='DEVICE':

                cart.total_price = cart.total_price - line.insuranceAmount

                if cart.discounted_price:

                    cart.discounted_price = cart.discounted_price - line.insuranceAmount

                line.insurer = 0

                line.insuranceAmount = 0

            if InsurerType._VALUES_TO_NAMES.get(insurerType)=='DATA':

                cart.total_price = cart.total_price - line.dataProtectionAmount

                if cart.discounted_price:

                    cart.discounted_price = cart.discounted_price - line.dataProtectionAmount

                line.dataProtectionInsurer = 0

                line.dataProtectionAmount = 0

        line.updated_on = datetime.datetime.now()

        cart.updated_on = datetime.datetime.now()

        session.commit()

    except:

        print("Error : Unable to insure")

        print("insurerId : " + str(insurerId) + " ItemId : " + str(itemId) + " CartId : " + str(cartId))

        return False

    return True

def cancel_insurance(cartId):

    try:

        cart = Cart.get_by(id = cartId)

        for cartLine in cart.lines:

            cart.total_price = cart.total_price - cartLine.insuranceAmount

            if cart.discounted_price:

                cart.discounted_price = cart.discounted_price - cartLine.insuranceAmount

            cartLine.insurer = 0

            cartLine.insuranceAmount = 0

            cartLine.updated_on = datetime.datetime.now()

        cart.updated_on = datetime.datetime.now()

        session.commit()

    except:

        print("Error : Unable to cancel insurance for cartId :" + str(cartId))

        return False

    return True

def store_insurance_specific_details(addressId, dob, guardianName):

    try:

        insuranceDetails = InsuranceDetails.get_by(addressId = addressId);

        if insuranceDetails is None :

            insuranceDetails = InsuranceDetails()

        insuranceDetails.addressId = addressId

        insuranceDetails.dob = dob

        insuranceDetails.guardianName = guardianName

        session.commit()

    except:

        print("Error : Unable to store insurance details for addressId : " + str(addressId))

        return False

    return True

def is_insurance_detail_present(addressId):

    try:

        insuranceDetails = InsuranceDetails.get_by(addressId = addressId);

        if insuranceDetails is None :

            return False

    except:

        print("Error : Unable to get insurance details for addressId : " + str(addressId))

        return False

    return True

def validate_cart_plus(cart_id, source_id):

    try:

        cart_messages = validate_cart(cart_id, source_id)

        found_cart = Cart.get_by(id=cart_id)

        pincode = "110001"

        default_address_id = User.get_by(active_cart_id = cart_id).default_address_id

        default_address = None

        if found_cart.address_id is not None and found_cart.address_id > 0:

            pincode = Address.get_by(id=found_cart.address_id).pin

        elif default_address_id is not None:

            default_address = Address.get_by(id = default_address_id) 

            pincode = default_address.pin

        needInuranceInfo = False

        if default_address_id is not None:

            for line in found_cart.lines:

                if line.insurer > 0:

                    needInuranceInfo = not is_insurance_detail_present(default_address_id)

                    break

        cartPlus = CartPlus()

        cartPlus.cart = to_t_cart(found_cart)

        cartPlus.pinCode = pincode

        cartPlus.validateCartMessages = cart_messages

        cartPlus.needInsuranceInfo = needInuranceInfo

        return cartPlus

    finally:

        close_session()

def close_session():

    if session.is_active:

        print "session is active. closing it."

        session.close()