Django 3.0中未定义名称“render_to_response”

在将我的项目从Django 1.8更新到Django 3.0之后,我面临着这样一个问题:“需要2个值才能在for循环中解包;得到1”

让我们考虑一下我的观点。py as:

def add_items(request, pk, ot):
    client = request.user.client
    val1 = []
    warehouse = [
        (str(use.pk), use.name)
        for use in WareHouse.objects.filter(client_id=client).
        exclude(is_active=False)]

    project = Project.objects.filter(client=request.user.client).exclude(is_deleted=True)
    data1 = OtherOrder.objects.filter(id=pk)

    if data1.exists() and (len(warehouse) == 1):
        order = data1[0]
        if order.warehouse is None:
            try:
                order.warehouse_id = warehouse[0][0]
                order.save()
            except BaseException as e:
                logger.exception(e)

    data = OtherOrderItem.objects.filter(other_order_id=pk)
    total = data.aggregate(Sum('total_cost')).get('total_cost__sum') or 0.00
    charges = OtherOrderAdditionalCharges.objects.filter(order_id=pk)
    if charges.filter(charges_calculated=False):
        flag = True

    val = [i.id for i in data]
    for j in val:
        data3 = Movements.objects.values('other_order_item','damaged_quantity').filter(other_order_item=j, other_order_id=pk).annotate(Sum('quantity'))
        val1.append(data3)
    back = '/stock/other_orders/'
    return render(request,'stock/add_items.html',locals())

我该如何解决我的问题