Getting user's old image if no image is selected

I have a form that takes in user data like bio, profile picture, gender, etc. and upon submission either creates this new row about the user or updates the existing row. This will only work if the user uploads an image. If no image is uploaded for the profile picture, then the form doesn't submit. How can I make it so that if the user didn't upload a profile picture, then it'll keep the user's previous profile picture and still submit?

I have a form that takes in user data like bio, profile picture, gender, etc. and upon submission either creates this new row about the user or updates the existing row. This will only work if the user uploads an image. If no image is uploaded for the profile picture, then the form doesn't submit. How can I make it so that if the user didn't upload a profile picture, then it'll keep the user's previous profile picture and still submit?

Here's my code:

class ProfileSettings(UpdateView):
    model = Profile
    template_name = 'blog/settings.html'
    form_class = ProfileForm
    success_url = reverse_lazy('blog:settings')
def post(self, request, *args, **kwargs):
    form = self.form_class(request.POST, request.FILES)

    if form.is_valid():
        bio = form.cleaned_data['bio']
        gender = form.cleaned_data['gender']
        avatar = form.cleaned_data['avatar']

        Profile.objects.update_or_create(user=self.request.user, defaults={'avatar':avatar, 'bio':bio, 'gender':gender})

    return HttpResponseRedirect(self.success_url)


Python Django Tutorial | Django Course

Python Django Tutorial | Django Course

🔥Intellipaat Django course: https://intellipaat.com/python-django-training/ 👉This Python Django tutorial will help you learn what is django web development &...

This Python Django tutorial will help you learn what is django web development & application, what is django and introduction to django framework, how to install django and start programming, how to create a django project and how to build django app. There is a short django project as well to master this python django framework.

Why should you watch this Django tutorial?

You can learn Django much faster than any other programming language and this Django tutorial helps you do just that. Our Django tutorial has been created with extensive inputs from the industry so that you can learn Django and apply it for real world scenarios.

Django

Well i used django ... i want to know after completing all the coding stuff, can i make all the codes online ?

Well i used django ... i want to know after completing all the coding stuff, can i make all the codes online ?

as Django give you a local host, i have a .com domain but can i integrate the codes to it so it works ?