JourneyJoker/payment/sepa/views.py

from django.views.generic import FormView
from django.shortcuts import get_object_or_404
from django.contrib import messages
from django.urls import reverse_lazy

from localauth.mixins import SuperUserRequiredMixin

from .forms import SepaApplyPaymentForm
from .models import SepaPaymentReference, SepaInvoicePayment

class SepaApplyPaymentView(SuperUserRequiredMixin, FormView):
    template_name = "payment/sepa/apply.html"
    form_class = SepaApplyPaymentForm
    success_url = reverse_lazy("sepa:apply")

    def form_valid(self, form):
        reference = form.cleaned_data["reference"]
        pr = get_object_or_404(SepaPaymentReference, reference=reference)
        pr.create_payment(form.cleaned_data["amount"])

        messages.success(self.request, "Zahlung angewendet.")

        return super().form_valid(form)