public function index()
{
$attrs = Attribute::orderBy("id", "asc");
if (!empty(Input::get("attr_name"))) {
$attrs = $attrs->where("attr", "like", "%" . Input::get("attr_name") . "%");
}
$attrs = $attrs->paginate(Config('constants.paginateNo'));
return view(Config('constants.adminAttrView') . '.index', compact('attrs'));
}