I think the key line of the traceback is this -
> File "C:\Users\Shazia\dd\src\orders\views.py" in dispatch
> 27. user_checkout = UserCheckout.objects.get(user=
request.user)
And the error is being thrown during your redirect to /orders/4/ at the end
of the post. What does your orders/views.py look like around line 27?
Unrelated to this error, but I'm also wondering what happens in
CheckoutFinalView if the paymethod is CashOnDelivery or CreditCard -
neither of those branches of your if statement actually return any sort of
http response.
On Wed, Aug 31, 2016 at 7:27 AM, Shazia Nusrat <shazianu...@gmail.com>
wrote:
> Hi I am having this error while I am trying to delete session and cart by
> IDs after order fulfillment.
>
> carts/views.py
>
> class CheckoutFinalView(CartOrderMixin, View):
>> def post(self, request, *args, **kwargs):
>> order = self.get_order()
>> order_id = order.id
>> print order_id
>>
>> pay_method = request.POST.get("paymethod")
>> print pay_method
>> order.save()
>>
>> if request.POST.get('paymethod') == "CashOnDelivery":
>> order.mark_completed(order_id)
>> messages.success(request, "Thank you for your order")
>> del request.session["cart_id"]
>> del request.session["order_id"]
>> elif request.POST.get("paymethod") == 'CreditCard':
>> order.mark_completed(order_id)
>> messages.success(request, "Thank you for your order")
>> del request.session['order_id']
>> del request.session['cart_id']
>> else:
>> return redirect("order_detail", pk=order.pk)
>>
>
> In my orders/models.py:
>
> order_id = models.CharField(max_length=20, null=True, blank=True)
> paymethod = models.CharField(max_length=16, choices=CHOICES,
> default='CashOnDelivery')
>
>
> My orders/views.py:
>
> class CashOnDelivery(FormView):
>> model = Order
>> form_class = PaymentForm
>> template_name = 'orders/payment_method.html'
>> success_url = '/checkout/final'
>>
>> My orders/forms.py:
>
> class PaymentForm(forms.ModelForm):
>> class Meta:
>> model = Order
>> fields = [
>> 'paymethod'
>> ]
>>
>
> My carts/checkout.html:
>
> {% extends 'base.html' %}
>> {% load crispy_forms_tags %}
>> {% block content %}
>>
>> <form method='POST' action="{% url 'checkout_final' %}">{% csrf_token %}
>> <!--<input type='hidden' name='payment_token' value='ABC' />-->
>> <!--if method selected then cod should not display-->
>>
>> {{ paymentform|crispy }}
>>
>>
>> <p><b><button type='submit'>Complete Order</button></b>
>> </p>
>>
>> </form>
>> {% endblock %}.
>>
>
> Finally my complete traceback:
>
> > Traceback:
> > File "C:\Users\Shazia\dd\lib\site-packages\django\core\handlers\base.py"
> in get_response
> > 132. response = wrapped_callback(request,
> *callback_args, **callback_kwargs)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\views\generic\base.py"
> in view
> > 71. return self.dispatch(request, *args, **kwargs)
> > File "C:\Users\Shazia\dd\src\orders\views.py" in dispatch
> > 27. user_checkout = UserCheckout.objects.get(user=
> request.user)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\manager.py"
> in manager_method
> > 127. return getattr(self.get_queryset(), name)(*args,
> **kwargs)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\query.py"
> in get
> > 325. clone = self.filter(*args, **kwargs)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\query.py"
> in filter
> > 679. return self._filter_or_exclude(False, *args, **kwargs)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\query.py"
> in _filter_or_exclude
> > 697. clone.query.add_q(Q(*args, **kwargs))
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\sql\query.py"
> in add_q
> > 1310. clause, require_inner = self._add_q(where_part,
> self.used_aliases)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\sql\query.py"
> in _add_q
> > 1338. allow_joins=allow_joins,
> split_subq=split_subq,
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\sql\query.py"
> in build_filter
> > 1200. lookups,
> value)
> > File
> > "C:\Users\Shazia\dd\lib\site-packages\django\db\models\fields\related.py"
> in get_lookup_constraint
> > 1745. lookup_class(target.get_col(alias, source),
> val), AND)
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\lookups.py"
> in __init__
> > 101. self.rhs = self.get_prep_lookup()
> > File "C:\Users\Shazia\dd\lib\site-packages\django\db\models\lookups.py"
> in get_prep_lookup
> > 139. return
> > self.lhs.output_field.get_prep_lookup(self.lookup_name,
> self.rhs)
> > File
> > "C:\Users\Shazia\dd\lib\site-packages\django\db\models\fields\__init__.py"
> in get_prep_lookup
> > 727. return self.get_prep_value(value)
> > File
> > "C:\Users\Shazia\dd\lib\site-packages\django\db\models\fields\__init__.py"
> in get_prep_value
> > 985. return int(value)
> >
> > Exception Type: TypeError at /orders/4/
> > Exception Value: int() argument must be a string or a number, not
> 'SimpleLazyObject'
>
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