Auto Fill User In Django Form

In my project as soon as user signup it is redirected to update view where he has to fill this information.Since the user has also logged in automatically after signup I want that user field to be filled automatically and can’t be edited.

models.py

class Userpro(models.Model):
    user = models.OneToOneField(User)
    dob = models.DateField(default=datetime.date.today)
    country = models.CharField(max_length=50, default='')
    qualification = models.CharField(max_length=10, choices=CHO, 
default='No')
    university = models.CharField(max_length=100, default='')
    location = models.CharField(max_length=100, default='')

    def __str__(self):
        return str(self.user)

forms.py

class UserProForm(forms.ModelForm):
    class Meta:
        model = Userpro
        fields = '__all__'

views.py

def update(request):
    if request.method == 'POST':
        form = UserProForm(request.POST or None)
        if form.is_valid():
            form.save()
            return redirect('/')
        else:
            redirect('/')
    else:
        form = UserProForm()
        return render(request, 'app/update.html', {'form': form})

All the required libraries are imported.

Answer

You can use widgets for your form. Something like this(code below is not tested).

from django.forms import TextInput


class UserProForm(forms.ModelForm):
    class Meta:
        model = Userpro
        fields = '__all__'
        widgets = {
            'user': TextInput(attrs={'readonly': 'readonly'})
        }

def update(request):
    instance = Userpro.objects.filter(user=request.user).first()
    if request.method == 'POST':
        form = UserProForm(request.POST, instance=instance)
        if form.is_valid():
            form.save()
            return redirect('/')
        else:
            return redirect('/')
    else:
        form = UserProForm(instance=instance)
        return render(request, 'app/update.html', {'form': form})

Edited: we should pass user inside dict like this: form = UserProForm({'user': request.user})

Edited 2: You should find profile object first and then pass it to the form

instance = Userpro.objects.filter(user=request.user).first()
form = UserProForm(request.POST, instance=instance)