Perform the map/reduce to refresh the keys form.
       The display the custom report screen

def build_keys(request, database_name, collection_name):
    """Perform the map/reduce to refresh the keys form.
       The display the custom report screen"""
    build_keys_with_mapreduce(database_name, collection_name)
    messages.success(request, _(
        "Successfully completed MapReduce operation. "
        "Key rebuild for custom report complete."))
    return HttpResponseRedirect(reverse("djmongo_show_dbs"))