Create a generic form fragment renderer

counter/views/click.py

@@ -416,6 +416,6 @@ class CounterClick(CounterTabsMixin, CanViewMixin, DetailView):
         kwargs["refill_form"] = self.refill_form or RefillForm()
         kwargs["barmens_can_refill"] = self.object.can_refill()
         kwargs["student_card"] = StudentCardFormView.get_template_data(
-            self.request, self.customer
-        ).as_dict()
+            self.customer
+        ).render(self.request)
         return kwargs

counter/views/student_card.py

@@ -14,31 +14,19 @@
 #
 
 
-from dataclasses import asdict, dataclass
-from typing import Any
-
 from django.core.exceptions import PermissionDenied
 from django.http import HttpRequest
 from django.shortcuts import get_object_or_404
 from django.urls import reverse_lazy
 from django.views.generic.edit import DeleteView, FormView
 
+from core.utils import FormFragmentTemplateData
 from core.views import CanEditMixin
 from counter.forms import StudentCardForm
 from counter.models import Customer, StudentCard
 from counter.utils import is_logged_in_counter
 
 
-@dataclass
-class StudentCardTemplateData:
-    form: StudentCardForm
-    template: str
-    context: dict[str, Any]
-
-    def as_dict(self) -> dict[str, Any]:
-        return asdict(self)
-
-
 class StudentCardDeleteView(DeleteView, CanEditMixin):
     """View used to delete a card from a user."""
 
@@ -64,10 +52,10 @@ class StudentCardFormView(FormView):
 
     @classmethod
     def get_template_data(
-        cls, request: HttpRequest, customer: Customer
-    ) -> StudentCardTemplateData:
+        cls, customer: Customer
+    ) -> FormFragmentTemplateData[form_class]:
         """Get necessary data to pre-render the fragment"""
-        return StudentCardTemplateData(
+        return FormFragmentTemplateData[cls.form_class](
             form=cls.form_class(),
             template=cls.template_name,
             context={
@@ -99,7 +87,7 @@ class StudentCardFormView(FormView):
 
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
-        data = self.get_template_data(self.request, self.customer)
+        data = self.get_template_data(self.customer)
         context.update(data.context)
         return context