How to get highest bid in an auction bidding site Django

Using Django Forms & APIs
19

Hi Ken, could you please check what I’ve done so far,

VIEWS.PY

@login_required
def make_bid(request, listing_id):
    auction = Auction.objects.get(pk=listing_id)
    user = request.user
    if request.method == 'POST':
        bid_form = BidForm(request.POST)
        if bid_form.is_valid(): 
            new_bid = request.POST['new_bid']
            current_price = Bids.objects.create(
                listing_id = listing_id,
                user = user,
                new_bid = new_bid
            )
            messages.success(request, 'Successfully added your bid')
            return HttpResponseRedirect(reverse("listing_detail", args=(listing_id,)))


        else:
            bid_form = BidForm(request.POST) 
            return render(request, 'auctions/details.html', {"bid_form": bid_form})  
                
    return render(request, 'auctions/details.html', bid_form = BidForm())

FORMS.PY

class BidForm(forms.ModelForm):

    class Meta:
        model = Bids
        fields = ['new_bid']
        labels = {
            'new_bid': ('Bid'),
        }


    def clean_new_bid(self):
        new_bid = self.cleaned_data['new_bid']
        current_bid = self.cleaned_data['current_bid']


        if new_bid <= current_bid:
            error = ValidationError("New bid must be greater than the previous bid")
            self.add_error('new_bid', error)
        return new_bid

DETAILS.HTML

                            <p>{{ detail.description }}</p>
                            <hr>
                            <p>Current price: ${{detail.current_price}}</p>

                            <form action="{% url 'make_bid' detail.id %}" method="post">
                                {% csrf_token %}
                                {{ form.non_field_errors }}
                                {{ form.errors }}
                                {{ bid_form }}
                                <input type="submit" class="btn btn-primary btn-block mt-3" value="Place bid">
                            </form>

I’m having this error

KeyError at /make_bid/2

‘current_bid’

Request Method: POST
Request URL: http://127.0.0.1:8000/make_bid/2

I’m sure its because I’m trying to compare two different models, but don’t know a better way to do this. Could you please direct me?