Convert page type usage view to a class-based view

wagtail/admin/urls/pages.py

@@ -34,7 +34,7 @@ urlpatterns = [
     ),
     path(
         "usage/<slug:content_type_app_name>/<slug:content_type_model_name>/",
-        usage.content_type_use,
+        usage.ContentTypeUseView.as_view(),
         name="type_use",
     ),
     path("<int:page_id>/usage/", usage.UsageView.as_view(), name="usage"),

wagtail/admin/views/pages/usage.py

@@ -3,40 +3,42 @@ from django.core.exceptions import PermissionDenied
 from django.core.paginator import Paginator
 from django.http import Http404
 from django.template.response import TemplateResponse
+from django.views.generic import View
 
 from wagtail.admin.views import generic
 from wagtail.models import Page
 
 
-def content_type_use(request, content_type_app_name, content_type_model_name):
-    try:
-        content_type = ContentType.objects.get_by_natural_key(
-            content_type_app_name, content_type_model_name
+class ContentTypeUseView(View):
+    def get(self, request, content_type_app_name, content_type_model_name):
+        try:
+            content_type = ContentType.objects.get_by_natural_key(
+                content_type_app_name, content_type_model_name
+            )
+        except ContentType.DoesNotExist:
+            raise Http404
+
+        page_class = content_type.model_class()
+
+        # page_class must be a Page type and not some other random model
+        if not issubclass(page_class, Page):
+            raise Http404
+
+        pages = page_class.objects.all().specific(defer=True)
+
+        paginator = Paginator(pages, per_page=10)
+        pages = paginator.get_page(request.GET.get("p"))
+
+        return TemplateResponse(
+            request,
+            "wagtailadmin/pages/content_type_use.html",
+            {
+                "pages": pages,
+                "app_name": content_type_app_name,
+                "content_type": content_type,
+                "page_class": page_class,
+            },
         )
-    except ContentType.DoesNotExist:
-        raise Http404
-
-    page_class = content_type.model_class()
-
-    # page_class must be a Page type and not some other random model
-    if not issubclass(page_class, Page):
-        raise Http404
-
-    pages = page_class.objects.all().specific(defer=True)
-
-    paginator = Paginator(pages, per_page=10)
-    pages = paginator.get_page(request.GET.get("p"))
-
-    return TemplateResponse(
-        request,
-        "wagtailadmin/pages/content_type_use.html",
-        {
-            "pages": pages,
-            "app_name": content_type_app_name,
-            "content_type": content_type,
-            "page_class": page_class,
-        },
-    )
 
 
 class UsageView(generic.UsageView):