Using existing template for form(showing not all fields) - django

Question

The issue is next: I'm using existing templates for my site. I have an order page. I want to use my own template for form
I know that I can implement it just using {% for field in form %}. But I need to show not all fields. For example, here is my Order model:
class Order(models.Model):
state_choices = ('ACTIVE', 'COMPLETED', 'FROZEN')
order_date = models.DateTimeField(auto_now_add=True)
delivery_time = models.CharField(max_length=100)
address_city = models.CharField(max_length=40)
address_street = models.CharField(max_length=40)
address_building = models.CharField(max_length=40)
state = models.CharField(max_length=200, default='ACTIVE')
client = models.ForeignKey(CustomUser)
I need to show just: address_city, address_street, address_building and delivery_time. Because in view I just return current user and set it to client. Here is my view that saves Order:
def submit(request):
args = {}
args['form'] = OrderForm
if request.POST:
order_form = OrderForm(request.POST)
if order_form.is_valid():
order_form.save()
user = request.user
address_country = order_form.cleaned_data['address_country']
address_city = order_form.cleaned_data['address_city']
address_building = order_form.cleaned_data['address_building']
delivery_time = order_form.cleaned_data['delivery_time']
new_order = Order(address_country=address_country,
address_city=address_city,
address_building=address_building,
delivery_date=delivery_time, client=user)
new_order.save()
Basket.objects.filter(client=user).delete()
return redirect('/order/')
else:
return render(request, 'order_page.html', args)
I guess that new_order is odd, because order_form.save() saves it. But how to set user of current session to Order through form?
To understand it all, here is my OrderForm code:
class OrderForm(forms.ModelForm):
class Meta():
model = Order
fields = ['address_city', 'address_street', 'address_building', 'delivery_time']

Answer 1

I handle this kind of logic in the form's init method, and when creating the form in the view I pass in the request object as a kwarg for the form to get its data from, then hide the appropriate fields:
In forms.py...
class YourForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
request = kwargs.pop('request', None)
super(YourForm, self).__init__(*args, **kwargs)
if request:
self.fields['field'].initial = process_request_to_get_value(request)
self.fields['field'].widget = forms.HiddenInput()
# More logic here if needed
class Meta:
model = Order
In views.py...
def your_view(request):
if request.method == 'POST':
form = YourForm(request.POST, request = request)
if form.is_valid():
form.save()
return HttpResponseRedirect('somewhere')
else:
form = YourForm(request = request)
return render_to_response('template',
{'form': form,},
context_instance = RequestContext(request))