CODE EXAMPLE FOR PYTHON

django Account has no customer

from multiprocessing import context
from django.shortcuts import render
from .models import *
from django.contrib.auth.models import User
from django.http import JsonResponse
import json

# Create your views here.
def store(request):
    if request.user.is_authenticated:
        customer = request.user.customer
        order, created=Order.objects.get_or_create(customer=customer, complete =False)
        items =order.orderitem_set.all()
        cartItems=order.get_cart_items

    else:
        items=[]
        order = {'get_cart_total':0, 'get_cart_items':0}
        cartItems=order['get_cart_items']

    products = Product.objects.all()
    context = {
        'products':products,
        'cartItems':cartItems,
        
        
    }
    return render(request, 'store/store.html', context)

def cart(request):
    if request.user.is_authenticated:
        customer = request.user.customer
        order, created=Order.objects.get_or_create(customer=customer, complete =False)
        items =order.orderitem_set.all()
        cartItems=order.get_cart_items
        
    else:
        items=[]
        order = {'get_cart_total':0, 'get_cart_items':0}
        cartItems=order['get_cart_items']
    
    context = {
        'items':items,
        'order':order,
        'cartItems':cartItems,
    }
    return render(request, 'store/cart.html', context)

def checkout(request):
    if request.user.is_authenticated:
        customer = request.user.customer
        order, created=Order.objects.get_or_create(customer=customer, complete =False)
       # order, created=Order.objects.get_or_create(complete =False)
        items =order.orderitem_set.all()
    else:
        items=[]
        order = {'get_cart_total':0, 'get_cart_items':0}
        cartItems=order['get_cart_items']
    
    context = {
        'items':items,
        'order':order,
        'cartItems':cartItems
    }
    return render(request, 'store/checkout.html', context)

def updateItem(request):
    data = json.loads(request.data)
    productId = data['productId']
    action = data['action']

    print('Action:', action)
    print('productId:', productId)

    customer=request.user.customer
    product=Product.objects.get(id=productId)
    order, created=Order.objects.get_or_create(complete =False)

    orderItem, created=OrderItem.objects.get_or_create(order=order, product=product)

    if action =='add':
        orderItem.quantity =(orderItem.quantity +1)
    elif action =='remove':
        orderItem.quantity =(orderItem.quantity -1)
        orderItem.save()
    
    if orderItem.quantity <=0:
        orderItem.delete()



    return JsonResponse('Item was added', safe =False)