def update_avatar(request, contact_id, template_name='contacts/edit_avatar.html'):
"""View to add a new avatar for a contact."""
contact = Contact.objects.get(id=contact_id)
avatar_form = UploadAvatarForm(request.POST or None, request.FILES or None)
if avatar_form.is_valid():
avatar_form.save(contact)
return redirect('contacts:update_contact_powers', contact_id=contact.id)
return render(request, template_name, {
'avatar_form': avatar_form,
'contact': contact
})
