Remove student card creation from CounterClick view and use fragment instead

Intercept htmx on submit requests, this allows auto submit from nfc fields

Fix super call with parameters

Add loading wheel on student card form for counter_click.jinja

counter/views/student_card.py

@@ -18,9 +18,9 @@ from django.shortcuts import get_object_or_404
 from django.urls import reverse_lazy
 from django.views.generic.edit import DeleteView, FormView
 
-from core.views import CanEditMixin
+from core.views import AllowFragment, CanEditMixin
 from counter.forms import StudentCardForm
-from counter.models import Customer, StudentCard
+from counter.models import Counter, Customer, StudentCard
 
 
 class StudentCardDeleteView(DeleteView, CanEditMixin):
@@ -40,7 +40,7 @@ class StudentCardDeleteView(DeleteView, CanEditMixin):
         )
 
 
-class StudentCardFormView(FormView):
+class StudentCardFormView(AllowFragment, FormView):
     """Add a new student card."""
 
     form_class = StudentCardForm
@@ -62,3 +62,52 @@ class StudentCardFormView(FormView):
         return reverse_lazy(
             "core:user_prefs", kwargs={"user_id": self.customer.user.pk}
         )
+
+
+class StudentCardFormFragmentView(FormView):
+    """
+    Add a new student card from a counter
+    This is a fragment only view which integrates with counter_click.jinja
+    """
+
+    form_class = StudentCardForm
+    template_name = "counter/add_student_card_fragment.jinja"
+
+    def dispatch(self, request, *args, **kwargs):
+        self.counter = get_object_or_404(
+            Counter.objects.annotate_is_open(), pk=kwargs["counter_id"]
+        )
+        self.customer = get_object_or_404(
+            Customer.objects.prefetch_related("student_cards"), pk=kwargs["customer_id"]
+        )
+        if not (
+            self.counter.type == "BAR"
+            and "counter_token" in request.session
+            and request.session["counter_token"] == self.counter.token
+            and self.counter.is_open
+        ):
+            raise PermissionDenied
+        return super().dispatch(request, *args, **kwargs)
+
+    def form_valid(self, form):
+        data = form.clean()
+        res = super().form_valid(form)
+        StudentCard(customer=self.customer, uid=data["uid"]).save()
+        return res
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["counter"] = self.counter
+        context["customer"] = self.customer
+        context["action"] = self.request.path
+        context["student_cards"] = self.customer.student_cards.all()
+        return context
+
+    def get_success_url(self, **kwargs):
+        return reverse_lazy(
+            "counter:add_student_card_fragment",
+            kwargs={
+                "customer_id": self.customer.pk,
+                "counter_id": self.counter.id,
+            },
+        )