Add feature flag for bulk member upload: update MemberLoadView, templates, and settings to use mass_upload flag with django-waffle.

backend/members/views.py

@@ -10,6 +10,7 @@ from django.utils.translation import gettext_lazy as _
 from django.views.generic import CreateView, DeleteView, FormView, UpdateView
 from django_filters.views import FilterView
 from rules.contrib.views import PermissionRequiredMixin
+from waffle.mixins import WaffleFlagMixin
 
 from members.filters import MemberFilter
 from members.forms import MassUploadForm, MemberForm
@@ -114,7 +115,7 @@ class MemberDeleteView(HTMXViewMixin, PermissionRequiredMixin, SuccessMessageMix
         return HttpResponseRedirect(self.get_success_url())
 
 
-class MemberLoadView(PermissionRequiredMixin, HTMXViewMixin, SuccessMessageMixin, FormView):
+class MemberLoadView(PermissionRequiredMixin, HTMXViewMixin, SuccessMessageMixin, WaffleFlagMixin, FormView):
     form_class = MassUploadForm
     permission_required = "members.add_member"
     permission_denied_message = _("You do not have permission to view this page.")
@@ -123,6 +124,7 @@ class MemberLoadView(PermissionRequiredMixin, HTMXViewMixin, SuccessMessageMixin
     partial_name = "members/member_load.html#content"
     menu_highlight = "members"
     template_name = "members/member_load.html"
+    waffle_flag = "mass_upload"
 
     def handle_no_permission(self) -> HttpResponseRedirect:
         messages.error(self.request, self.get_permission_denied_message())