FormView

feedback.py

def post(form):
    form = FeedbackForm(request.POST)

    if form.is_valid():
        name = form.cleaned_data['name']
        email = form.cleaned_data['email']
        message = form.cleaned_data['message']

        subject = "A New Feedback"
        ctx = {
            'name': name,
            'email': email,
            'message': message
        }
        message = render_to_string('ecoke/includes/_email_feedback.html', ctx)
        mail_admins(subject, message, fail_silently=True, html_message=None)
        
        form.save()

        messages.add_message(request, messages.SUCCESS, 'Thank you for your Feedback.')
        return redirect(reverse('ecoke:index'))

def get(request):
    if !request.user.is_authenticated():
        return FeedbackForm()

    user = get_object_or_404(User, username=username)
    form = FeedbackForm(instance=user, initial={
        'name': user.profile.get_screen_name,
        'email': user.email,
    })
    
    return form
    
def feedback(request, username=None):
    if request.method == 'POST':
        post(form)
    else:
        form = get(request)

    return render(request, 'ecoke/feedback.html', { 'form': form })

FeedbackFormView.py

class FeedbackFormView(FormView):
    form_class = FeedbackForm
    template_name = 'ecoke/feedback.html'

    def get_initial(self):
        if self.request.user.is_authenticated():
            return {
                'name': self.request.user.profile.get_screen_name,
                'email': self.request.user.email,
            }
            
    def form_valid(self, form):
        success_message = 'Thank you for your Feedback.'
        messages.add_message(self.request, messages.SUCCESS, success_message)

        return super(FeedbackFormView, self).form_valid(form)

    def form_invalid(self, form):
        failure_message = 'Email not sent. Please try again.'
        messages.add_message(self.request, messages.WARNING, failure_message)
        return super(FeedbackFormView, self).form_invalid(form)

    def post(self, request, *args, **kwargs):
        form_class = self.get_form_class()
        form = self.get_form(form_class)

        if !form.is_valid():
            return self.form_invalid(form)
        
        self.send_email(request, form)
        
        return self.form_valid(form)
     
    def send_email(self, request, form):
        name = form.cleaned_data['name']
        email = form.cleaned_data['email']
        message = form.cleaned_data['message']

        details = {
            'name': name,
            'email': email,
            'message': message
        }
        
        subject = "[e-Coke] A New Feedback"
        support_email = settings.CONTACTS['support_email']
        
        txt_message = render_to_string('ecoke/includes/_email_feedback.html', details)

        mail = EmailMultiAlternatives(subject, txt_message, email, [support_email])
        mail.attach_alternative(txt_message, "text/html")
        
        try:
            mail.send()
        except:
            messages.add_message(request, messages.WARNING, 'Unable to send email verification. Please try again')


    def get_success_url(self):
        return reverse('ecoke:index')