code: def get_urls(self):
          
          urls = super(FormAdmin, self).get_urls()
          extra_urls = [
              url("^(?P<form_id>\d+)/entries/$",
                  self.admin_site.admin_view(self.entries_view),
                  name="form_entries"),
              url("^file/(?P<field_entry_id>\d+)/$",
                  self.admin_site.admin_view(self.file_view),
                  name="form_file"),
          ]
          return extra_urls + urls
docs: Add the entries view to urls.