Django function based form not valid

Question

I'm trying to make a function based form for taking input from the user to create a customer table. I'm using a function based form but when I use form.is_valid() it's returning False.

def customer(request):
    form = customerForm(request.POST or None )
    print(form)
    context = {'form':form}
    if form.is_valid():
        mobile_no = form.cleaned_data["mobile_no"]
        print("mobile_no")
        object = Customer.objects.get(mobile_no=mobile_no)
        if(object is not None):
            invoice_no = Bill.objects.all().count()
            obj = Bill.objects.create(customer_info=object,invoice_no=invoice_no+1,shop_details=ShopDetail.objects.all())
            return redirect(reverse('receipt:create-bill',kwargs = {'pk':obj.pk}))
    return HttpResponse("<h1>Form invalid</h1>")#redirect(reverse_lazy("home"))

Possible duplicate of [Django form is\_valid() fails](https://stackoverflow.com/questions/11071983/django-form-is-valid-fails) — Nordle, Jul 04 '18 at 06:09
Post more information (such as your model, your form, and your template) please. — Selcuk, Jul 04 '18 at 06:11
try `print(form.errors)` after your code. then you can see what's wrong — seuling, Jul 04 '18 at 06:18

score 0 · Answer 1 · answered Jul 04 '18 at 06:19

Maybe you sets submiting form method as GET but in function set form data by request.POST You must set method attribute of html form tag to post and change your function as below:

def customer(request):
    form = customerForm()
    if request.method.lower() == 'post':
        form = customerForm(request.POST or None )
        print(form)
        context = {'form':form}
        if form.is_valid():
            mobile_no = form.cleaned_data["mobile_no"]
            print("mobile_no")
            object = Customer.objects.get(mobile_no=mobile_no)
            if(object is not None):
                invoice_no = Bill.objects.all().count()
                obj = Bill.objects.create(customer_info=object,invoice_no=invoice_no+1,shop_details=ShopDetail.objects.all())
                return redirect(reverse('receipt:create-bill',kwargs = {'pk':obj.pk}))
        return HttpResponse("<h1>Form invalid</h1>")  # redirect(reverse_lazy("home"))
    return render('my_template.html', context=context)

Django function based form not valid

1 Answers1